CN108607942A - A kind of flexible positioning method of rolled thread - Google Patents
A kind of flexible positioning method of rolled thread Download PDFInfo
- Publication number
- CN108607942A CN108607942A CN201611139683.4A CN201611139683A CN108607942A CN 108607942 A CN108607942 A CN 108607942A CN 201611139683 A CN201611139683 A CN 201611139683A CN 108607942 A CN108607942 A CN 108607942A
- Authority
- CN
- China
- Prior art keywords
- axial line
- workpiece
- branch
- rolled thread
- cylindrical die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
Abstract
The present invention relates to a kind of localization methods of rolled thread, branch piece is mounted on the branch tablet seat sliding seat of scalable movement first, branch tablet seat fixed seat is fixed in screw-rolling machine rack, secondly adjusting sliding seat height makes the positioning surface of the branch piece to the radius d0/2 that the distance of cylindrical die roll axial line plane is workpiece rolled thread blank, d0 is rolled thread base diameter, ensures that the axial line of workpiece is located in cylindrical die roll axial line plane；When rolled thread blank gradually deforms, the last branch piece is driven with branch tablet seat sliding seat by numerically controlled electro-hydraulic cylinder, and it is moved gradually downward according to the workpiece thread height H speed increased, remain the axial line of workpiece always in cylindrical die roll axial line plane, it eventually settles at cylindrical die roll axial line plane d/2, d is the Major Diam of rolled thread workpiece, and the distance that the branch piece moves down is (d d0)/2.The height of branch piece be adjusted to it is digital control, it is more convenient and efficient than existing method.
Description
Technical field
The present invention relates to a kind of localization methods of rolled thread, specifically, being related to a kind of applied to the soft of rolled thread
Property localization method.
Background technology
Branch piece positioning is the common localization method of rolled thread.The purpose positioned using branch piece is that workpiece is made to be held in one
Specific position range, it is ensured that workpiece smoothly shapes, and meets corresponding requirements.
Currently, rolled thread uses rigid branch piece to position, i.e., the position of the positioning surface of rigid branch piece positioning is fixed
, in initial manufacture, workpiece axial line is only completed in component shaping not in the plane of two cylindrical die roll axial lines composition,
Not when growing up, the axial line of workpiece is just in the plane of two cylindrical die roll axial lines composition Major Diam.
Invention content
The present invention is on the sliding seat for the branch tablet seat that branch piece is mounted on to scalable movement, then branch tablet seat is fixedly mounted on
In rack.The height change of specific branch piece positioning surface in order to control, remains that the axial line of workpiece is always positioned at cylindrical die roll axle center
In line plane.
Technical solution：Branch piece is mounted on the sliding seat of the branch tablet seat of scalable movement, the fixed seat of branch tablet seat is fixed
In screw-rolling machine rack, adjusting sliding seat height makes positioning surface to the distance of cylindrical die roll axial line plane of branch piece be workpiece rolled thread
The radius d0/2, d0 of blank are rolled thread base diameter, ensure that the axial line of workpiece is located in cylindrical die roll axial line plane；When rolled thread blank
Gradually when deformation, branch piece is driven with the sliding seat of branch tablet seat by numerically controlled electro-hydraulic cylinder, and is increased according to workpiece thread height H
Long speed moves gradually downward, remains that the axial line of workpiece in cylindrical die roll axial line plane, eventually settles at always
At cylindrical die roll axial line plane d/2, d is the Major Diam of rolled thread workpiece, and the distance that branch piece moves down is (d-d0)/2, about
The half of thread height H.
Technique effect
The purpose of the invention is to provide a kind of new localization method, to improve the positioning device service life.With the prior art
It compares, structure is slightly more complex, and still, the positioning device service life is at least 5 times higher than the service life of the device of existing localization method, meanwhile,
The height of branch piece be adjusted to it is digital control, it is more convenient and efficient than existing method.
Description of the drawings
Fig. 1 is existing positioning device working state schematic representation：
1. 2. 5. workpiece of tablet seat sliding seat 3. branch piece fixed seat, 4. connecting rod, 6. cylindrical die rolls of branch piece
7. 8. oil circuit of screw-rolling machine rack, 9. communication line
Specific implementation mode
Such as：The screw thread of M12 × 1.75 is rolled, Major Diam d is 12mm, and rolled thread blank diameter d0 is 10.84mm, and tooth is high
Increase (12-10.84)/2=0.58mm, rolling speed is 30/minute (2s), is computed, the initial position of branch piece is
Distance is at 5.42mm below cylindrical die roll axial line plane, rolled thread start after with the speed of average 0.29mm/s (0.58mm/2s)
It moves down, is finally stopped at cylindrical die roll axial line plane lower section distance 6mm, branch piece moves 0.58mm in total.Above-mentioned parameter is defeated
Enter digital control computer, and other data realize linkage with screw-rolling machine.After rolled thread starts, by computer according to above-mentioned parameter
Control Electrohydraulic servo cylinder driving sliding seat is in vertical motion, and branch piece positioning surface is moved with sliding seat keeps workpiece axial line to be located at
In cylindrical die roll axial line plane, to reduce the frictional force of workpiece and branch piece positioning surface, reduce the abrasion of branch piece, to improve the branch piece longevity
Life.
Claims (1)
1. a kind of soft property localization method of rolled thread, it is characterised in that：Branch piece (1) is mounted on to the branch of scalable movement first
On tablet seat sliding seat (2), branch tablet seat fixed seat (3) is fixed in screw-rolling machine rack (7), and secondly adjusting sliding seat height makes described
The distance of the positioning surface of branch piece (1) to cylindrical die roll axial line plane is that the radius d0/2, d0 of workpiece rolled thread blank are rolled thread base diameter,
Ensure that the axial line of workpiece is located in cylindrical die roll axial line plane；When rolled thread blank gradually deforms, the last branch piece (1) with
Branch tablet seat sliding seat (2) is driven by numerically controlled electro-hydraulic cylinder, and gradually downward according to the speed of workpiece thread height H growths
It is mobile, remain that the axial line of workpiece in cylindrical die roll axial line plane, is eventually settled at apart from cylindrical die roll axial line always
At plane d/2, d is the Major Diam of rolled thread workpiece, and the distance that the branch piece (2) moves down is (d-d0)/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139683.4A CN108607942A (en) | 2016-12-12 | 2016-12-12 | A kind of flexible positioning method of rolled thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139683.4A CN108607942A (en) | 2016-12-12 | 2016-12-12 | A kind of flexible positioning method of rolled thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108607942A true CN108607942A (en) | 2018-10-02 |
Family
ID=63657274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611139683.4A Pending CN108607942A (en) | 2016-12-12 | 2016-12-12 | A kind of flexible positioning method of rolled thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108607942A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365701A (en) * | 2018-11-06 | 2019-02-22 | 济南易恒技术有限公司 | Rolled thread closed loop control method and device |
| CN113894372A (en) * | 2021-09-29 | 2022-01-07 | 航天精工股份有限公司 | Machining method for correcting large-diameter threads |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173670Y (en) * | 1993-08-16 | 1994-08-10 | 青岛市平度自动锻压机床厂 | Fast head stock mechanism for screw rolling machine |
| JP2002059236A (en) * | 2000-08-09 | 2002-02-26 | Nissee:Kk | Form rolling apparatus and method of from rolling |
| CN203437571U (en) * | 2013-07-10 | 2014-02-19 | 如皋透平叶片制造有限公司 | Valve rod thread rolling die |
| CN203804113U (en) * | 2014-03-11 | 2014-09-03 | 上海申光高强度螺栓有限公司 | Bolt thread rolling dynamic balance device and thread rolling machine including bolt thread rolling dynamic balance device |
| CN204159803U (en) * | 2014-09-16 | 2015-02-18 | 青岛德盛机械制造有限公司 | Screw-rolling machine and feed control system thereof |
| CN204220893U (en) * | 2014-11-11 | 2015-03-25 | 杭州同宇机械有限公司 | With pitch different-diameter screw thread process mould |
| CN205571291U (en) * | 2016-03-04 | 2016-09-14 | 游奕华 | Toper external screw thread roll forming wheel and forming device |
-
2016
- 2016-12-12 CN CN201611139683.4A patent/CN108607942A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173670Y (en) * | 1993-08-16 | 1994-08-10 | 青岛市平度自动锻压机床厂 | Fast head stock mechanism for screw rolling machine |
| JP2002059236A (en) * | 2000-08-09 | 2002-02-26 | Nissee:Kk | Form rolling apparatus and method of from rolling |
| CN203437571U (en) * | 2013-07-10 | 2014-02-19 | 如皋透平叶片制造有限公司 | Valve rod thread rolling die |
| CN203804113U (en) * | 2014-03-11 | 2014-09-03 | 上海申光高强度螺栓有限公司 | Bolt thread rolling dynamic balance device and thread rolling machine including bolt thread rolling dynamic balance device |
| CN204159803U (en) * | 2014-09-16 | 2015-02-18 | 青岛德盛机械制造有限公司 | Screw-rolling machine and feed control system thereof |
| CN204220893U (en) * | 2014-11-11 | 2015-03-25 | 杭州同宇机械有限公司 | With pitch different-diameter screw thread process mould |
| CN205571291U (en) * | 2016-03-04 | 2016-09-14 | 游奕华 | Toper external screw thread roll forming wheel and forming device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365701A (en) * | 2018-11-06 | 2019-02-22 | 济南易恒技术有限公司 | Rolled thread closed loop control method and device |
| CN113894372A (en) * | 2021-09-29 | 2022-01-07 | 航天精工股份有限公司 | Machining method for correcting large-diameter threads |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181002 |
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| RJ01 | Rejection of invention patent application after publication |