CN101428303A - Indirect-extrusion mould returned material plate assistant guide structure - Google Patents
Indirect-extrusion mould returned material plate assistant guide structure Download PDFInfo
- Publication number
- CN101428303A CN101428303A CNA2008102357728A CN200810235772A CN101428303A CN 101428303 A CN101428303 A CN 101428303A CN A2008102357728 A CNA2008102357728 A CN A2008102357728A CN 200810235772 A CN200810235772 A CN 200810235772A CN 101428303 A CN101428303 A CN 101428303A
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- die
- stripper
- stripper plate
- bolt
- punch
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- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a guide assistance structure for a stripper plate of a backward extrusion die. A male die matches with the inner taper hole thereof via a tapered shaft segment, the stripper plate is arranged on the bottom surface of the male die and has the central hole thereof in clearance fit with the male die, holes in clearance fit with a bolt are arranged at the two ends of the stripping plate, and the bolt is sheathed with a spring and is connected with a female die holder. A female die positioning device positioned on the lower side of the structure is installed inside the female die holder, and a knockout pin is arranged at the bottom end of the die cavity of a female die. An outwardly convex guide sleeve is arranged on the bottom end surface of the stripping plate and is coaxial with the central hole of the stripper plate, and the outer wall of the guide sleeve is in clearance fit with the die cavity opening of the female die. In the case of waiting material, the male die and the stripper plate are positioned in an upper position, and in the case of backward extrusion operation, the end part of the male die and the guide sleeve of the stripper plate are inserted into the die cavity of the female die together. The invention plays functions of positioning and guiding, remarkably enhances the lateral force resistance capacity of male die during backward extrusion operation, improves the forming quality of workpieces, and avoids damage of the die due to uneven loading.
Description
Technical field
The present invention relates to a kind of metal extrusion die tool, specifically, the present invention relates to a kind of stripper of indirect-extrusion mould.
Background technology
In the machinery manufacturing industry, adopt indirect-extrusion mould to process small-sized thin-wall case class part usually.The indirect-extrusion mould stripper of prior art is a plate-like members, and stripper is attached to the punch bottom and does not contact with die, and stripper made the workpiece demoulding when punch was with the press backhaul after the backward extrusion operation.Because the punch structure of indirect-extrusion mould is cantilever-shaped, it is bigger that its structural strength and rigidity are influenced by side force, and the sotck thinkness or the hardness inequality that particularly are extruded processing cause the punch unbalance loading, and the lighter influences the wall thickness of processing work, weight person's mold damage.
Summary of the invention
The present invention is primarily aimed at the deficiencies in the prior art, proposes a kind of indirect-extrusion mould returned material plate assistant guide structure that significantly improves punch structure intensity and rigidity, and this is simple in structure, reliable, effective, helps the punch positioning and guiding effective.
The present invention is achieved through the following technical solutions technical goal.
Indirect-extrusion mould returned material plate assistant guide structure, it comprises punch, convex template, stripper, bolt, spring, die socket, die and push rod.Described punch cooperates with the convex template internal taper hole with the tapering shaft part, and stripper places the convex template bottom surface, its centre bore and punch matched in clearance, and the stripper two ends are provided with the hole with the bolt matched in clearance, and pocketed springs is connected with die socket on the bolt.Described die location and installation is in die socket, and the die cavity bottom of die is provided with the push rod that matches.Its improvements are: described stripper bottom face is provided with the fairlead with the coaxial evagination of centre bore, the die cavity mouth matched in clearance of fairlead outer wall and die.
Said structure is when to be expected, stripper is in upper, and during the backward extrusion operation, the fairlead of stripper bottom face inserts in the die die cavity, significantly strengthens the ability of punch lateral force resistance, has the effect of the punch of helping positioning and guiding.
The present invention compared with prior art has following good effect:
1, the stripper bottom face is set up fairlead, and is simple in structure, make easily;
Fairlead when 2, instead squeezing operation on the stripper bottom face inserts the die die cavity, has the effect of positioning and guiding punch, significantly strengthens the ability of punch lateral force resistance when backward extrusion, improves the quality of backward extrusion, improves die life.
Description of drawings
Accompanying drawing is the structural profile schematic diagram of the present invention when backward extrusion.
The specific embodiment
The invention will be further described to press structure shown in the accompanying drawing below.
Indirect-extrusion mould returned material plate assistant guide structure shown in the drawings, it comprises punch 1, convex template 2, stripper 3, bolt 4, spring 5, die socket 6, die 7 and push rod 8.Described punch 1 cooperates with convex template 2 internal taper holes with the tapering shaft part, stripper 3 places convex template 2 bottom surfaces, its centre bore and punch 1 matched in clearance, stripper 3 bottom faces are provided with the fairlead 3.1 with the coaxial evagination of centre bore, the die cavity mouth matched in clearance of fairlead 3.1 outer walls and die 7.Described die 7 location and installation are in die socket 6, and the die cavity bottom of die 7 is provided with the push rod 8 that matches, the die 7 of fixed-site be in punch 1 under.Stripper 3 two ends are provided with the hole with bolt 4 matched in clearance, and pocketed springs 5 connects and composes indirect-extrusion mould returned material plate assistant guide structure with die socket 6 on the bolt 4.When to be expected, punch 1 and stripper 3 are in upper, and as shown in drawings, the fairlead 3.1 of the end of punch 1 and stripper 3 inserts in the die cavity of dies 7 jointly when implementing the backward extrusion operation.Although fairlead 3.1 cooperates simple in structure with the die cavity of die 7, but very practical, effective, except that effect, significantly strengthen the ability of punch 1 lateral force resistance when backward extrusion with positioning and guiding punch 1, both improved the quality of backward extrusion, the damage of avoiding mould to cause again because of unbalance loading.
Claims (1)
1, a kind of indirect-extrusion mould returned material plate assistant guide structure, it comprises punch (1), convex template (2), stripper (3), bolt (4), spring (5), die socket (6), die (7) and push rod (8); Described punch (1) cooperates with convex template (2) internal taper hole with the tapering shaft part, stripper (3) places convex template (2) bottom surface, its centre bore and punch (1) matched in clearance, stripper (3) two ends are provided with the hole with bolt (4) matched in clearance, and bolt (4) is gone up pocketed springs (5) and is connected with die socket (6); Described die (7) location and installation is in die socket (6), and the die cavity bottom of die (7) is provided with the push rod (8) that matches; It is characterized in that: described stripper (3) bottom face is provided with the fairlead (3.1) with the coaxial evagination of centre bore, the die cavity mouth matched in clearance of fairlead (3.1) outer wall and die (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102357728A CN101428303A (en) | 2008-11-27 | 2008-11-27 | Indirect-extrusion mould returned material plate assistant guide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102357728A CN101428303A (en) | 2008-11-27 | 2008-11-27 | Indirect-extrusion mould returned material plate assistant guide structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101428303A true CN101428303A (en) | 2009-05-13 |
Family
ID=40644061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102357728A Pending CN101428303A (en) | 2008-11-27 | 2008-11-27 | Indirect-extrusion mould returned material plate assistant guide structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101428303A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658489A (en) * | 2013-12-09 | 2014-03-26 | 盐城工学院 | Cup shell forging device with guide function and material discharging function |
| CN105414233A (en) * | 2015-03-10 | 2016-03-23 | 东北大学 | Backward extrusion die with back pressure and processing technology adopting same |
| CN107755446A (en) * | 2017-09-25 | 2018-03-06 | 中北大学 | A kind of processing technology of raising DT4C pure iron magnetic behaviors |
| CN111136161A (en) * | 2019-12-26 | 2020-05-12 | 安徽千缘模具有限公司 | Novel inclined plane punching lateral force prevention die |
-
2008
- 2008-11-27 CN CNA2008102357728A patent/CN101428303A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658489A (en) * | 2013-12-09 | 2014-03-26 | 盐城工学院 | Cup shell forging device with guide function and material discharging function |
| CN105414233A (en) * | 2015-03-10 | 2016-03-23 | 东北大学 | Backward extrusion die with back pressure and processing technology adopting same |
| CN107755446A (en) * | 2017-09-25 | 2018-03-06 | 中北大学 | A kind of processing technology of raising DT4C pure iron magnetic behaviors |
| CN111136161A (en) * | 2019-12-26 | 2020-05-12 | 安徽千缘模具有限公司 | Novel inclined plane punching lateral force prevention die |
| CN111136161B (en) * | 2019-12-26 | 2021-11-30 | 安徽千缘模具有限公司 | Inclined plane punching lateral force prevention die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090513 |