CN104785703B - Logical liftout attachment after cold-heading - Google Patents
Logical liftout attachment after cold-heading Download PDFInfo
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- CN104785703B CN104785703B CN201510196500.1A CN201510196500A CN104785703B CN 104785703 B CN104785703 B CN 104785703B CN 201510196500 A CN201510196500 A CN 201510196500A CN 104785703 B CN104785703 B CN 104785703B
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- push rod
- cold
- bed die
- workpiece
- heading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Logical liftout attachment after the invention discloses a kind of cold-heading, it is characterized in that: include push rod and the outer sleeve being fixed in cold headers bed die case, push rod is partly made up of left and right bonded to each other, and the most movable setting made in the guide hole that outer sleeve is provided with by left half push rod, and right half push rod barrel forward end outside is arranged；Before ejecting work, at the bottom of the chamber of the bed die die cavity that the leading head of left and right half push rod is installed in being in concordant state and exposing to bed die case together, after ejecting work, left half push rod is pushed forward releases bed die die cavity by workpiece.The present invention directly utilizes push rod, in the bottom of workpiece, workpiece is carried out cold-heading processing, it is most important that make workpiece be easily disengaged from push rod before workpiece is ejected bed die chamber, it is to avoid push rod is impaired, the cold-heading processing of the drill bit groove that is applicable to cut into a mountain.
Description
Technical field
The present invention relates to cold-heading technical field, logical liftout attachment after being specifically related to a kind of cold-heading.
Background technology
Cold header is a kind of the various metal wire rods handled well to be carried out cold extrusion, makes wire rod equipment of cold-heading molding in mould, is used for processing various standard, non-standard securing member and vapour and rubs accessory.At present, after cold-heading, the workpiece in the cold-heading bed die die cavity after cold-heading is ejected by the effect of logical liftout attachment exactly, during work, is first impacted workpiece top by cold forge dies, make workpiece in the bed die intracavity molding of cold upsetting die of car, then ejected by rear logical push rod.But, workpiece for the similar drill bit that cuts into a mountain, the counterbore on its top can be gone out by cold forge dies, but the drill bit groove of bottom is but difficult to cold-heading processing, main cause is that the two sides of drill bit groove do not have gradient and have high depth of parallelism requirement, if directly carry out cold-heading with drift, drift is not easily disconnected from entering drill bit groove, and hard draw can only cause drastically abrasion or the damage of drift；If it being carried out cold-heading processing (at the bottom of i.e. the leading head of push rod exposes to the chamber of bed die die cavity by rear logical push rod, under the impact force action of drift, push rod head naturally extrudes and makes forming drill groove bottom workpiece bottom workpiece), there is also identical technical problem, push rod is not easily disconnected from entering drill bit groove, easily causes damage.
Summary of the invention
The problem existed in view of currently known technology, the technical problem to be solved in the present invention is to be to provide a kind of push rod that directly utilizes, in the bottom of workpiece, workpiece is carried out cold-heading processing, the most important thing is to make workpiece be easily disengaged from push rod before workpiece is ejected bed die chamber, avoid push rod impaired, logical liftout attachment after the cold-heading of the drill bit groove cold-heading processing that is applicable to cut into a mountain.
For solving above-mentioned technical problem, the present invention has adopted the following technical scheme that:
Logical liftout attachment after cold-heading, it is characterized in that: include push rod and the outer sleeve being fixed in cold headers bed die case, push rod is partly made up of left and right bonded to each other, and the most movable setting made in the guide hole that outer sleeve is provided with by left half push rod, and right half push rod barrel forward end outside is arranged；Before ejecting work, at the bottom of the chamber of the bed die die cavity that the leading head of left and right half push rod is installed in being in concordant state and exposing to bed die case together, after ejecting work, left half push rod is pushed forward releases bed die die cavity by workpiece.
nullAfter using technique scheme，Present invention can be suitably applied to cut into a mountain the cold-heading processing of drill bit groove，Its specific works process is: before ejecting work，Left and right half push rod leading head be in concordant state and expose to bed die die cavity together chamber at the bottom of，Left and right half push rod head width altogether and has the high both sides depth of parallelism as the groove width of drill bit groove，When the top of the drill workpiece that cuts into a mountain is impacted by cold forge dies，Workpiece is in the bed die intracavity molding of cold upsetting die of car，The counterbore on workpiece top is gone out by cold forge dies，The drill bit groove of workpiece bottom is directly gone out by push rod，Next it is exactly that workpiece ejects work，Left half push rod is pushed forward，Owing to right half push rod remains stationary as，So left half push rod is while releasing bed die die cavity by workpiece，Workpiece can be easily disengaged from push rod，Push rod is difficult to impaired，The cold-heading processing of drill bit groove thus realization is cut into a mountain，The two sides of drill bit groove also can have the high depth of parallelism because not having gradient.
As preferably, the rear end of described left half push rod connects slide, slide slides and is located in described guide hole, the hole wall central authorities of guide hole are provided with the gib block of evagination, left half push rod its lateral surface when making the most movable is carried out guided bearing by gib block, by spring return function after left half push rod forward motion, slide front end face is provided with two spring eyes installing described spring, and two spring eyes are arranged in the lateral symmetry of gib block.After above-mentioned design, left half push rod can realize high-precision axial action, and possess and high eject rigidity, simple in construction simultaneously.
As preferably, the rear end of described right half push rod connects base, and the front end surface half of described outer sleeve is sunk, and the bottom surface of base againsts the sinking end face of outer sleeve, and the front end surface height that the end face of base and outer sleeve do not sink maintains an equal level.
Accompanying drawing explanation
The present invention has a drawings described below:
Fig. 1 is present invention structural representation before ejecting work,
Fig. 2 is present invention structural representation after ejecting work,
Fig. 3 is the outline drawing of outer sleeve,
Fig. 4 is the right view of Fig. 3,
Fig. 5 is the outline drawing of push rod,
Fig. 6 is the right view of Fig. 5.
Detailed description of the invention
Accompanying drawing illustrates technical scheme and embodiment, further describes each relevant details and the operation principle thereof of embodiment below in conjunction with accompanying drawing.
As shown in the figure, logical liftout attachment after the cold-heading of the present invention, including push rod and the outer sleeve 6 being fixed in cold headers bed die case 1, push rod is partly made up of left and right bonded to each other, the most movable setting made in the guide hole 63 that outer sleeve 6 is provided with by left half push rod 3, by spring 5 return after left half push rod 3 forward motion, right half push rod 4 is fixedly installed in outer sleeve 6 front end；Before ejecting work, at the bottom of the chamber of bed die 2 die cavity 21 that the leading head of left and right half push rod is installed in being in concordant state and exposing to bed die case 1 together, after ejecting work, left half push rod 3 is pushed forward releases bed die die cavity 21 by workpiece A.
The rear end of described left half push rod 3 connects semi-cylindrical slide 7, described guide hole 63 is the semicylindrical opening of coupling semi-cylindrical, semi-cylindrical is slidably matched with semicylindrical opening, slide 7 slides and is located in described guide hole 63, the hole wall central authorities of guide hole 63 are provided with the gib block 64 of evagination, left half push rod 3 its lateral surface when making the most movable is carried out guided bearing by gib block 64, and slide 7 front end face is provided with two spring eyes 9 installing described spring 5, and two spring eyes 9 are arranged in the lateral symmetry of gib block 64；The rear end of described right half push rod 4 connects base 8, and the front end surface half of described outer sleeve 6 is sunk, and the bottom surface 82 of base 8 againsts the sinking end face 62 of outer sleeve 6, and the end face 81 of base 8 and outer sleeve 6 do not have the front end surface 61 sunk the most fair.
nullThe present invention is performed such work: before ejecting work，Left and right half push rod leading head be in concordant state and expose to bed die die cavity 21 together chamber at the bottom of，Left and right half push rod head width altogether and has the high both sides depth of parallelism as the groove width of the drill bit groove A2 that cuts into a mountain，When the top of the drill workpiece that cuts into a mountain is impacted by cold forge dies，Workpiece A molding in the bed die chamber 21 of cold upsetting die of car，The counterbore A1 on workpiece top is gone out by cold forge dies，The drill bit groove A2 of workpiece bottom is directly gone out by push rod，Next it is exactly that workpiece ejects work，Left half push rod 3 is promoted forward by cold headers pusher push rod，Owing to right half push rod 4 remains stationary as，So left half push rod 3 is while releasing bed die die cavity 21 by workpiece A，Workpiece A can be easily disengaged from push rod，Push rod is difficult to impaired，The cold-heading processing of drill bit groove A2 thus realization is cut into a mountain，The two sides of drill bit groove A2 also can have the high depth of parallelism because not having gradient.
Claims (3)
1. logical liftout attachment after cold-heading, it is characterized in that: include push rod and the outer sleeve being fixed in cold headers bed die case, push rod is partly made up of left and right bonded to each other, and the most movable setting made in the guide hole that outer sleeve is provided with by left half push rod, and right half push rod barrel forward end outside is arranged；Before ejecting work, at the bottom of the chamber of the bed die die cavity that the leading head of left and right half push rod is installed in being in concordant state and exposing to bed die case together, after ejecting work, left half push rod is pushed forward releases bed die die cavity by workpiece.
2. logical liftout attachment after cold-heading as claimed in claim 1, it is characterized in that: the rear end of described left half push rod connects slide, slide slides and is located in described guide hole, the hole wall central authorities of guide hole are provided with the gib block of evagination, left half push rod its lateral surface when making the most movable is carried out guided bearing by gib block, by spring return function after left half push rod forward motion, slide front end face is provided with two spring eyes installing described spring, and two spring eyes are arranged in the lateral symmetry of gib block.
3. logical liftout attachment after cold-heading as claimed in claim 1, it is characterized in that: the rear end of described right half push rod connects base, the front end surface half of described outer sleeve is sunk, and the bottom surface of base againsts the sinking end face of outer sleeve, and the front end surface height that the end face of base and outer sleeve do not sink maintains an equal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196500.1A CN104785703B (en) | 2015-04-24 | 2015-04-24 | Logical liftout attachment after cold-heading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196500.1A CN104785703B (en) | 2015-04-24 | 2015-04-24 | Logical liftout attachment after cold-heading |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104785703A CN104785703A (en) | 2015-07-22 |
| CN104785703B true CN104785703B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510196500.1A Active CN104785703B (en) | 2015-04-24 | 2015-04-24 | Logical liftout attachment after cold-heading |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921668B (en) * | 2016-07-01 | 2018-01-02 | 宁波天相机械制造有限公司 | A kind of rear passing out set of cold header |
| CN107008843B (en) * | 2017-05-16 | 2018-08-24 | 浙江东瑞机械工业有限公司 | Rod end open slot cold upsetting die of car |
| CN115609038B (en) * | 2022-12-15 | 2023-04-11 | 河北安丰重工机械股份有限公司 | Automatic round steel blank drilling machine of location |
| CN116174641B (en) * | 2023-03-10 | 2024-06-28 | 浙江瑞利动力科技有限公司 | Bolt cold heading device and application method thereof |
Citations (6)
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|---|---|---|---|---|
| JP4011451B2 (en) * | 2002-10-02 | 2007-11-21 | 清 阿南 | Backward extrusion method and backward extrusion device |
| CN201969804U (en) * | 2010-12-20 | 2011-09-14 | 中国华录·松下电子信息有限公司 | Stage ejection mechanism for stamped workpieces |
| CN202052894U (en) * | 2011-04-15 | 2011-11-30 | 罗能强 | Automatic cold heading machine of tail hole |
| CN102274918A (en) * | 2011-05-24 | 2011-12-14 | 浙江东瑞机械工业有限公司 | Rear pass mechanism for cold upsetting forming machine |
| CN103111579A (en) * | 2013-02-06 | 2013-05-22 | 宁波海星机械制造有限公司 | Multistage cold former idler wheel type back through ejector rod device |
| CN204603186U (en) * | 2015-04-24 | 2015-09-02 | 浙江东瑞机械工业有限公司 | Logical liftout attachment after cold-heading |
-
2015
- 2015-04-24 CN CN201510196500.1A patent/CN104785703B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4011451B2 (en) * | 2002-10-02 | 2007-11-21 | 清 阿南 | Backward extrusion method and backward extrusion device |
| CN201969804U (en) * | 2010-12-20 | 2011-09-14 | 中国华录·松下电子信息有限公司 | Stage ejection mechanism for stamped workpieces |
| CN202052894U (en) * | 2011-04-15 | 2011-11-30 | 罗能强 | Automatic cold heading machine of tail hole |
| CN102274918A (en) * | 2011-05-24 | 2011-12-14 | 浙江东瑞机械工业有限公司 | Rear pass mechanism for cold upsetting forming machine |
| CN103111579A (en) * | 2013-02-06 | 2013-05-22 | 宁波海星机械制造有限公司 | Multistage cold former idler wheel type back through ejector rod device |
| CN204603186U (en) * | 2015-04-24 | 2015-09-02 | 浙江东瑞机械工业有限公司 | Logical liftout attachment after cold-heading |
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| CN104785703A (en) | 2015-07-22 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Through ejection device after cold heading Effective date of registration: 20220119 Granted publication date: 20160824 Pledgee: Wenzhou Financing Guarantee Co.,Ltd. Pledgor: ZHEJIANG DONGRUI MACHINERY INDUSTRY Co.,Ltd. Registration number: Y2022990000043 |
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Date of cancellation: 20230130 Granted publication date: 20160824 Pledgee: Wenzhou Financing Guarantee Co.,Ltd. Pledgor: ZHEJIANG DONGRUI MACHINERY INDUSTRY Co.,Ltd. Registration number: Y2022990000043 |
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