CN203830481U - Hinge U-shaped bending tool - Google Patents
Hinge U-shaped bending tool Download PDFInfo
- Publication number
- CN203830481U CN203830481U CN201420217477.0U CN201420217477U CN203830481U CN 203830481 U CN203830481 U CN 203830481U CN 201420217477 U CN201420217477 U CN 201420217477U CN 203830481 U CN203830481 U CN 203830481U
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- Prior art keywords
- hinge
- leaf
- shaped
- groove
- bending tool
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- Expired - Fee Related
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Abstract
The utility model discloses a hinge U-shaped bending tool, comprising a lower die base, wherein a lower die provided with a U-shaped clamping slot at a middle part thereof is placed on the lower die base, a locating plate is fixed on the lower die and placed at one side of the clamping slot, an upper die is provided right over the clamping slot, a die shank is connected with the upper die. The hinge U-shaped bending tool of the utility model is especially suitable for processing of hinge parts with the length/diameter ratio (L/d) not less than 30. The hinge U-shaped bending tool of the utility model is simple in structure, reliable in part positioning, and convenient in part taking, and avoids unstable bending caused by thin material and long length in the process of circle-rolling forming. At the same time, other mechanical damages are also avoided. In addition, the structure of the hinge U-shaped bending tool has good versatility, as long as the required hinge holes have the same diameter, only one set of die is used for various specifications (lengths), thereby greatly reducing the number of dies, and saving production cost.
Description
Technical field
The utility model relates to a kind of leaf of hinge U-shaped bending tool, belongs to machine components manufacture technology field.
Background technology
Leaf of hinge (HB2-20-2002) as shown in Figure 4, belong to hinge class part, be applicable to the non-bearing hinge that lid and plate are flexibly connected use, be mainly used in aviation, space flight, steamer field, owing to being flexibly connected for lid and plate, therefore, planform to part, dimensional requirement is strict, material adopts 2A12-O (LY12-M), 30CrMnSiA, thickness has 0.5, 0.8, 1.0, 1.2, 1.5 several, specification is more, the piece surface depression that do not have, scratch, burr and other mechanical damages, for leaf of hinge (hinged component) part, interrelated data introduction at present, normally then the pre-bending of blank head could be rolled up to circle, two kinds of structure function principles of existing volume circle mould are all to adopt the round method that pushes away, a kind of structure is simpler, mfg. moulding die is easy, but the method exists certain limitation, part for draw ratio L/d >=30, during shaping because material is thinner, the easy unstability of spares bend volume bowlder, Bending Parts Quality is poor, the size in hole and circularity are also wayward, percent defective is high, the bent failure of the circle that even twists, produce difficulty, cannot be shaped, can not meet and adapt to product quality and batch product requirement, another kind is to utilize wedge to act on horizontal direction to die to roll up circle, there is material pressing device, Bending Parts Quality is better, but mould structure is more complicated, many for leaf of hinge specification, die needed many, die manufacturing cost is large, cycle is long, it is more difficult to debug, can not meet client's needs and batch product requirement.
Summary of the invention
The purpose of this utility model is: a kind of leaf of hinge volume circle fixture for forming, can fast, accurately realize leaf of hinge volume circle, to overcome the deficiencies in the prior art.
The technical solution of the utility model
A manufacturing process for leaf of hinge part, the method is on traditional leaf of hinge connecting hole moulding technique, to increase by one U-shaped bending operation, to realize, this leaf of hinge connecting hole is quick, precise forming.
In the manufacturing process of aforesaid leaf of hinge part, according to prior art and frock by the pre-bending of leaf of hinge connecting hole blank head, pre-bending radian size is 1/4～1/6 of actual leaf of hinge connecting hole, with leaf of hinge U-shaped bending tool, press down leaf of hinge connecting hole blank, depressed position is 3/4 of whole leaf of hinge connecting hole blank length apart from the length of leaf of hinge connecting hole blank termination, making this leaf of hinge blank is U-shaped structure, finally by plug, is put into U-shaped structure and rolled up circle fixture for forming by leaf of hinge leaf of hinge blank head volume circle is shaped.
In the manufacturing process of aforesaid leaf of hinge part, its U-shaped structural base is a semi arch, and radius size is consistent with actual leaf of hinge connecting hole radius size.
In the manufacturing process of aforesaid leaf of hinge part, described plug radius is 1/60～1/120 of actual leaf of hinge connecting hole radius.
A leaf of hinge U-shaped bending tool, comprises die shoe, and the counterdie that is provided with U-shaped draw-in groove at middle part is placed on die shoe, and location-plate is fixed on counterdie and is placed in draw-in groove one side, is provided with patrix directly over draw-in groove, and die shank connects patrix.
In aforesaid leaf of hinge U-shaped bending tool, the width of described U-shaped draw-in groove is consistent with the diameter of processed hinge film perforation.
In aforesaid leaf of hinge U-shaped bending tool, the location-plate end face corresponding with draw-in groove is consistent to pre-bending hinge film perforation 3/4 extension position A distance to the circular arc end points of draw-in groove axial line distance and pre-bending hinge film perforation, to guarantee pre-bending hinge film perforation 3/4 extension position A and draw-in groove dead in line.
A kind of leaf of hinge volume circle fixture for forming, comprise patrix one, patrix one is placed on the interior also cooperation of groove of counterdie one, in counterdie one lower right corner, be provided with circular arc one, be provided with circular arc two with patrix one place of circular arc one correspondence position, plug is placed in circular arc one and circular arc two, and the briquetting that is provided with die shank one is arranged on directly over groove.
In aforesaid leaf of hinge volume circle fixture for forming, described plug radius, circular arc Radius and circular arc two radiuses are consistent and be 1/60～1/120 of actual leaf of hinge connecting hole radius.
Owing to adopting technique scheme, compared with prior art, the utility model is especially suitable for the leaf of hinge part processing of draw ratio L/d >=30, the utility model is simple in structure, part location is reliable, pickup is convenient, while having avoided volume circle to be shaped, because material is thin, length is compared with bending-buckling long and that produce.Also avoided other mechanical damages, and this structure versatility is good, as long as required leaf of hinge bore dia is consistent, all size (length) can complete with a secondary mould, has greatly reduced the quantity of mould, has saved production cost simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is volume circle shaped structure schematic diagram;
Accompanying drawing 2 is the utility model structural representations;
Accompanying drawing 3 is leaf of hinge pre-bending tool structure schematic diagrames;
Accompanying drawing 4 is leaf of hinge (HB2-20-2002) structural representations;
Accompanying drawing 5 is upper die structure schematic diagrames in accompanying drawing 1;
Accompanying drawing 6 is lower die structure schematic diagrames in accompanying drawing 1;
Accompanying drawing 7 is that leaf of hinge is at pre-bending stage structures schematic diagram;
Accompanying drawing 8 is that leaf of hinge is at U-shaped bending stage structures schematic diagram;
Accompanying drawing 9 is that leaf of hinge is at volume circle stage structures schematic diagram.
Being labeled as in accompanying drawing: 1-die shoe, 2-counterdie, 3-draw-in groove, 4-patrix one, 5-die shank, 6-patrix, 7-counterdie one, 8-groove, 9-circular arc one, 10-circular arc two, 11-plug, 12-briquetting, 13-die shank one, 14-lower bolster one.
The specific embodiment
Below in conjunction with accompanying drawing to the utility model with being described in further detail, but not as to any restriction of the present utility model.
Embodiment of the present utility model: a kind of manufacturing process of leaf of hinge part, the method is on traditional leaf of hinge connecting hole moulding technique, to increase by one U-shaped bending operation, to realize, this leaf of hinge connecting hole is quick, precise forming.
Concrete grammar is by the pre-bending of leaf of hinge connecting hole blank head according to prior art and frock, pre-bending radian size is 1/4～1/6 of actual leaf of hinge connecting hole, with leaf of hinge U-shaped bending tool, press down leaf of hinge connecting hole blank, depressed position is 3/4 of whole leaf of hinge connecting hole blank length apart from the length of leaf of hinge connecting hole blank termination, making this leaf of hinge blank is U-shaped structure, finally by plug, put into U-shaped structure and roll up circle fixture for forming by leaf of hinge leaf of hinge blank head volume circle is shaped, its U-shaped structural base is a semi arch, and radius size is consistent with actual leaf of hinge connecting hole radius size, and this plug radius is 1/60～1/120 of actual leaf of hinge connecting hole radius.
According to said method, two kinds of frocks have been built, as shown in Figure 2, a kind of leaf of hinge U-shaped bending tool, comprise die shoe 1, the counterdie 2 that is provided with U-shaped draw-in groove 3 at middle part is placed on die shoe 1, location-plate 7 is fixed on counterdie 2 and is placed in draw-in groove 3 one sides, directly over draw-in groove 3, be provided with patrix 6, die shank 5 connects patrix 6, the width of wherein said U-shaped draw-in groove 3 is consistent with the diameter of processed hinge film perforation, and location-plate 7 end faces corresponding with draw-in groove 3 are consistent to pre-bending hinge film perforation 3/4 extension position A distance to the circular arc end points of draw-in groove 3 axial line distance and pre-bending hinge film perforation, to guarantee pre-bending hinge film perforation 3/4 extension position A and draw-in groove 3 deads in line.
As shown in Figure 1, a kind of leaf of hinge volume circle fixture for forming, comprise patrix 1, it is characterized in that: patrix 1 is placed on the interior also cooperation of groove 8 of counterdie 1, in counterdie one 14 lower right corner, be provided with circular arc 1, be provided with circular arc 2 10 with patrix one 4 places of circular arc one 9 correspondence positions, plug 11 is placed in circular arc 1 and circular arc 2 10, the briquetting 12 that is provided with die shank 1 is arranged on directly over groove 8, and plug 11 radiuses, circular arc one 9 radiuses and circular arc 2 10 radiuses are consistent and be 1/60～1/120 of actual leaf of hinge connecting hole radius.
Concrete manufacturing process:
Step 1, the pre-bending stage, as shown in accompanying drawing 3 and 7, adopt precompressed bending tool by the bending of lotus leaf film perforation blank, its pre-bending radian size be 1/4～1/6 (the present embodiment pre-bending radian is big or small be actual leaf of hinge connecting hole 1/4) of actual leaf of hinge connecting hole.
Step 2, U-shaped bending stage, as shown in accompanying drawing 2 and 8, the leaf of hinge of pre-bending is placed on counterdie 2, and location-plate 7 is withstood on the top that makes pre-bending arc surface, these location-plate 7 right sides are half of hinge film perforation girth apart from U-shaped draw-in groove axial line distance, and the depressed position of assurance patrix is 3/4 of whole leaf of hinge connecting hole blank length apart from the length of leaf of hinge connecting hole blank termination.
Step 3, volume circle formative stage, as shown in accompanying drawing 1 and 9, plug 11 is placed in leaf of hinge U-shaped structure, and hinge film perforation blank is put into the circular arc 1 of counterdie 1, patrix 1 is put into groove 8, finally by briquetting 1, pressed down volume circle, plug 11 radiuses in this structure, circular arc one 9 radiuses and circular arc 2 10 radiuses are consistent and be 1/60～1/120 of actual leaf of hinge connecting hole radius, because in real work, after completing volume circle, hinge film perforation has bounce situations, in order to guarantee precision, make plug be less than the actual size of hinge film perforation, and utilized the resilience of hinge film perforation, make the extraction of plug very convenient.
Claims (3)
1. a leaf of hinge U-shaped bending tool, comprise die shoe (1), it is characterized in that: the counterdie (2) that is provided with U-shaped draw-in groove (3) at middle part is placed on die shoe (1), location-plate (7) is fixed on counterdie (2) and goes up and be placed in draw-in groove (3) one sides, directly over draw-in groove (3), be provided with patrix (6), die shank (5) connects patrix (6).
2. leaf of hinge U-shaped bending tool according to claim 1, is characterized in that: the width of described U-shaped draw-in groove (3) is consistent with the diameter of processed hinge film perforation.
3. leaf of hinge U-shaped bending tool according to claim 1, it is characterized in that: location-plate (7) end face corresponding with draw-in groove (3) is consistent to pre-bending hinge film perforation 3/4 extension position (A) distance to the circular arc end points of draw-in groove (3) axial line distance and pre-bending hinge film perforation, to guarantee pre-bending hinge film perforation 3/4 extension position (A) and draw-in groove (3) dead in line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420217477.0U CN203830481U (en) | 2014-04-30 | 2014-04-30 | Hinge U-shaped bending tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420217477.0U CN203830481U (en) | 2014-04-30 | 2014-04-30 | Hinge U-shaped bending tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203830481U true CN203830481U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420217477.0U Expired - Fee Related CN203830481U (en) | 2014-04-30 | 2014-04-30 | Hinge U-shaped bending tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203830481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978083A (en) * | 2014-04-30 | 2014-08-13 | 贵州航天精工制造有限公司 | Forming method and forming tool for hinge plate parts |
-
2014
- 2014-04-30 CN CN201420217477.0U patent/CN203830481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978083A (en) * | 2014-04-30 | 2014-08-13 | 贵州航天精工制造有限公司 | Forming method and forming tool for hinge plate parts |
| CN103978083B (en) * | 2014-04-30 | 2016-07-27 | 贵州航天精工制造有限公司 | The manufacturing process of a kind of leaf of hinge part and forming frock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160430 |