CN109201980A - A kind of subregion application method of cylindrical die roll - Google Patents
A kind of subregion application method of cylindrical die roll Download PDFInfo
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- CN109201980A CN109201980A CN201811085237.9A CN201811085237A CN109201980A CN 109201980 A CN109201980 A CN 109201980A CN 201811085237 A CN201811085237 A CN 201811085237A CN 109201980 A CN109201980 A CN 109201980A
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- Prior art keywords
- rolling
- processing
- cylindrical die
- die roll
- area
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- 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
- B21H3/042—Thread-rolling heads
Abstract
The present invention relates to a kind of subregion application methods of cylindrical die roll.This method comprises: according to actual bearer region, the circumference of the cylindrical die roll is divided into successively from the first rolling and processing region to multiple rolling and processing regions in S rolling and processing region for cylindrical die roll partition method；Recycle rolling and processing method, the cylindrical die roll is controlled using the first rolling and processing region, rolling and processing is carried out to the work surface of fastener, when the first rolling and processing area damage of use, rolling and processing is continued using the second rolling and processing region on the cylindrical die roll, so circulation, until the last one S rolling and processing area damage, the cylindrical die roll are scrapped and do not used on the cylindrical die roll.
Description
Technical field
The present invention relates to external screw thread processing technique fields, more particularly to a kind of subregion application method of cylindrical die roll.
Background technique
In order to promote externally threaded screw strength and endurance load character, work in-process needs to keep the company of metal streamline
Continuous property, and make Bottom of Thread in arc-shaped transition, reduce stress and concentrate, is just answered extensively using the method for the rolling and processing of cylindrical die roll
For in externally threaded processing.In production and processing, cylindrical die roll major diameter bounce be directly related to product Major Diam fluctuation range and
Consistency has strict demand for product Major Diam consistency in aviation field, and the requirement of major diameter fluctuation range is smaller.Separately
Outside, when outer rolling screw-threads form, cylindrical die roll can generate the damage because of factors such as fatigues with the increase of converted products quantity, this
Patented method opposite can promote single width cylindrical die roll service life.
Rolled thread processing in cylindrical die roll the curve of load as shown in Figure 1.Wherein 1st area is that single rolls cyclic process, and 2nd area are
Roll-forming process, 3rd area are school type rolling process, and 4th area are that cylindrical die roll exits and feed process.Entire rolling process is according to rolled thread
360 ° of wheel is recycled.
Under existing use technical conditions, the bounce of major diameter existing for cylindrical die roll itself is transferred directly to product Major Diam,
Cause the overproof and consistency of product batches internal screw thread major diameter bounce poor.Moreover, when a little damaging occurs in rolled thread wheel surface tooth form,
To prevent spot failure from impacting to part form of thread, cylindrical die roll i.e. scrap, cannot reuse, cylindrical die roll use cost compared with
It is high.
In addition, being the consistency of major diameter of thread when guaranteeing fastener threads rolling and processing by the gross, need cylindrical die roll itself outer
Diameter circumference is high to beating, and need to be processed using particular form to cylindrical die roll processing, cylindrical die roll cost is high.
Therefore, what inventor was creative provides a kind of subregion application method of cylindrical die roll.
Summary of the invention
The embodiment of the invention provides a kind of subregion application methods of cylindrical die roll, by reducing rolling for cylindrical die roll subregion
The influence that silk wheel major diameter is beated to product Major Diam, improves the quality of product, adequately and reasonably can effectively use rolled thread
Wheel, improves single width cylindrical die roll service life.
The embodiment of the present invention proposes a kind of subregion application method of cylindrical die roll, this method comprises:
The circumference of the cylindrical die roll is divided into and successively being added from the first rolling according to actual bearer region by cylindrical die roll subregion
Multiple rolling and processing regions of the work area domain to S rolling and processing region；
Rolling and processing is recycled, controls the cylindrical die roll using the first rolling and processing region, to the work surface of fastener
Rolling and processing is carried out, when the first rolling and processing area damage of use, is added using the second rolling on the cylindrical die roll
Work area domain continues rolling and processing, so recycles, until the last one S rolling and processing area damage on the cylindrical die roll,
The cylindrical die roll is scrapped and is not used.
Further, each rolling and processing region includes that roll forming area, school type rolling area and cylindrical die roll move back
Area and feeding area out.
Further, the method by cylindrical die roll subregion further includes, based on externally threaded diameter parameters, cylindrical die roll it is outer
Diameter and rolling operating parameter, calculate the angle and the rolling in each rolling and processing region on the circumference for obtaining the cylindrical die roll
Press the quantity of machining area.
Further, from first rolling and processing region to the N rolling and processing region, each rolling and processing
Single area's angle in region is all the same.
Further, the angle calculation formula in the rolling and processing region is A=360 ° × [(d2-d3)/V+1] × d3/
D, in formula, A is single area angle, and d2 is the pitch diameter of thread, and d3 is diameter of thread, and D is cylindrical die roll outer diameter, and V be the rolling of driving cylindrical die roll
Silk owner's axis feed speed.
Further, the number calculation formula in the rolling and processing region is S=D/ { [(d2-d3)/V+1] × d3 }, formula
In, S is the number of partitions in the rolling and processing region.
Further, the circulation rolling and processing method further includes controlling the cylindrical die roll using numerically-controlled machine tool and being rolled
Initial position angle when pressure processing, i.e., the rolling and processing that first rolling and processing region is arranged on the numerically-controlled machine tool rise
Beginning position angle is a, after the first rolling and processing area damage, controls second rolling by the numerically-controlled machine tool and adds
The rolling and processing initial position angle in work area domain is a+A, and so on, the rolling and processing in the S rolling and processing region rises
Beginning position angle is a+ (S-1) A.
Further, the angular range of a is 1 °~10 °.
Further, after the rolling and processing of each rolling and processing region completion single, loading and unloading are carried out in fastener
Gap, the numerically-controlled machine tool is by control for driving the main shaft of cylindrical die roll to continue forward or reverse, to make the rolling and processing area
Domain returns to corresponding initial position angle.
Further, during the single rolling and processing in each rolling and processing region, actual bearer area is described
Roll forming area and the school type roll area.
To sum up, the present invention is by the theory by cylindrical die roll according to externally threaded machined parameters progress subregion, based on rationally tight
Cylindrical die roll is divided into multiple rolling and processing regions and is recycled respectively by careful calculating, and cylindrical die roll circle circumferential size is jumped
Dynamic be reduced to is beated using single area, is reduced the bounce of cylindrical die roll major diameter to product major diameter influence of fluctuations, is improved the processing of screw thread
Quality.In addition, can make effective use of actual bearer area during the single rolling and processing in each rolling and processing region, mention
The processable screw thread quantity for having risen entire cylindrical die roll, further improves the service life of cylindrical die roll, adds to reduce production
Work cost.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the curve of load schematic diagram of cylindrical die roll in external screw thread rolled thread process.
Fig. 2 is a kind of subregion application method flow diagram of cylindrical die roll of the embodiment of the present invention.
In figure:
1- single rolls cyclic process；2- roll-forming process；The school 3- type rolling process；4- cylindrical die roll is exited and was fed
Journey.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment it is detailed
Thin description and attached drawing cannot be used to limit the scope of the invention for illustratively illustrating the principle of the present invention, i.e., of the invention
It is not limited to described embodiment, covers part, component and connection type under the premise of without departing from the spirit of the present invention
Any modification, replacement and improvement.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to accompanying drawings and in conjunction with the embodiments.
Fig. 1 is load-time graph schematic diagram of cylindrical die roll in external screw thread rolled thread process, as shown in Figure 1,1st area is
Single rolls cyclic process, and 2nd area are roll-forming process, and 3rd area are school type rolling process, and 4th area are that cylindrical die roll is exited and fed
Journey.Entire rolling process is recycled according to 360 ° of cylindrical die roll.The embodiment of the present invention is based oneself upon and sufficiently uses cylindrical die roll circle
Cylindrical die roll is divided into multiple regions and carries out rolled thread processing use by all areas in week, and each rolling and processing region can be sufficiently
It is recycled, effectively increases the service life of cylindrical die roll.
Fig. 2 is a kind of subregion application method flow diagram of cylindrical die roll of the embodiment of the present invention.Subregion of the invention makes
The external screw thread rolling and processing of fastener is used for method, specific application method to include the following steps S110~step S120:
Step S110 be by cylindrical die roll subregion, according to actual bearer region, by the circumference of the cylindrical die roll be divided into successively from
Multiple rolling and processing regions of the first rolling and processing region to S rolling and processing region.
Step S120 is circulation rolling and processing, and control cylindrical die roll uses the first rolling and processing region, to the to be added of fastener
Work surface carries out rolling and processing, when the first rolling and processing area damage of use, using the second rolling and processing on cylindrical die roll
Region continues rolling and processing, so recycles, until the last one S rolling and processing area damage on cylindrical die roll, at this point, rolling
All rolling and processings for rolled thread processing on silk wheel have cmpletely used, and cylindrical die roll is scrapped and do not used.
Specifically, each rolling and processing region include roll forming area, school type rolling area and cylindrical die roll exit area and
Feed area.Each region on rolling and processing region both corresponds to corresponding process.
Wherein, step S110's further includes by cylindrical die roll partition method, based on externally threaded diameter parameters, cylindrical die roll it is outer
The data such as diameter and rolling operating parameter calculate the angle in each rolling and processing region and a rolling on the circumference for obtaining the cylindrical die roll
The quantity in rolling and processing region in silk wheel circumference range.Also, from the first rolling and processing region to N rolling and processing on cylindrical die roll
Single area's angle in region, each rolling and processing region is all the same.
Specifically, the angle calculation formula in rolling and processing region is A=360 ° × [(d2-d3)/V+1] × d3/D, formula
In, A is single area angle, and d2 is the pitch diameter of thread, and d3 is diameter of thread, and D is cylindrical die roll outer diameter, and V is the screw-rolling machine for driving cylindrical die roll
Axis feeding speed.
The number calculation formula in rolling and processing region is S=D/ { [(d2-d3)/V+1] × d3 }, and in formula, S is that rolling adds
The number of partitions in work area domain.
Further, the circulation rolling and processing method of step S120 further includes being carried out using numerically-controlled machine tool control cylindrical die roll
The rolling and processing start bit in the first rolling and processing region is arranged in initial position angle when rolling and processing on the numerically-controlled machine tool
Angle setting degree is a, and after the first rolling and processing area damage, the rolling and processing in the second rolling and processing region is controlled by numerically-controlled machine tool
Initial position angle is a+A, and so on, the rolling and processing initial position angle in the S rolling and processing region is a+ (S-
1)A。
As a kind of alternative embodiment, the angular range of a is 1 °~10 °.
As other alternative embodiments, after the rolling and processing of single is completed in each rolling and processing region, carried out in fastener
Loading and unloading gap, numerically-controlled machine tool is by control for driving the main shaft of cylindrical die roll to continue forward or reverse, to make to be used when processing
Rolling and processing region return to corresponding initial position angle.
It should be noted that actual bearer area is to be rolled into during the single rolling and processing in each rolling and processing region
Type area and school type roll area.The roll forming area and school type rolling area are respectively corresponded for corresponding roll-forming process and school type
Rolling process.
It is illustrated for when MJ6 × 1-4h6h externally threaded rolling and processing, the externally threaded each parameter of MJ6 × 1-4h6h
It is as follows:
Pitch diameter of thread d2:5.30mm；
Diameter of thread d3:4.70mm；
Cylindrical die roll outer diameter D: 178mm；
Screw-rolling machine axis feeding speed V:0.12mm/rev；
Relevant parameter can be brought into A=360 ° of formula × [(d2-d3)/V+1] × d3/D by partition method according to the present invention
In, it calculates and obtains A=57 °, parameter is brought into formula S=D/ { [(d2-d3)/V+1] × d3 }, calculate and obtain S=6, i.e., should
Cylindrical die roll can be divided into 6 rolling and processing regions and use.Then using this big bright proposition by 6 rolling and processings on cylindrical die roll
Region is successively distinguished application method according to the invention and is recycled, and damages and scraps until each rolling and processing region, can
Strict guarantee Major Diam is within the scope of standard requirements.
It should be clear that all the embodiments in this specification are described in a progressive manner, each embodiment it
Between the same or similar part may refer to each other, the highlights of each of the examples are it is different from other embodiments it
Place.The invention is not limited to particular step described above and shown in figure and structures.Also, for brevity,
Here the detailed description to known method technology is omitted.
The above description is only an example of the present application, is not restricted to the application.The scope of the present invention is not being departed from
In the case where to those skilled in the art, various changes and changes are possible in this application.It is all in spirit herein and
Any modification, equivalent replacement, improvement and so within principle, should be included within the scope of claims hereof.
Claims (10)
1. a kind of subregion application method of cylindrical die roll, the external screw thread rolling and processing for fastener characterized by comprising
The circumference of the cylindrical die roll is divided into successively from the first rolling and processing area by cylindrical die roll subregion according to actual bearer region
Multiple rolling and processing regions of the domain to S rolling and processing region；
Rolling and processing is recycled, the cylindrical die roll is controlled using the first rolling and processing region, the work surface of fastener is carried out
Rolling and processing, when the first rolling and processing area damage of use, using the second rolling and processing area on the cylindrical die roll
Domain continues rolling and processing, so recycles, described until the last one S rolling and processing area damage on the cylindrical die roll
Cylindrical die roll is scrapped and is not used.
2. the subregion application method of cylindrical die roll according to claim 1, which is characterized in that each rolling and processing region
It include that roll forming area, school type rolling area and cylindrical die roll exit area and feeding area.
3. the subregion application method of cylindrical die roll according to claim 2, which is characterized in that the side by cylindrical die roll subregion
Method further includes, based on externally threaded diameter parameters, the outer diameter of cylindrical die roll and rolling operating parameter, calculating and obtaining the cylindrical die roll
The angle in each rolling and processing region and the quantity in the rolling and processing region on circumference.
4. the subregion application method of cylindrical die roll according to claim 3, which is characterized in that from first rolling and processing area
Single area's angle in domain to the N rolling and processing region, each rolling and processing region is all the same.
5. the subregion application method of cylindrical die roll according to claim 4, which is characterized in that the angle in the rolling and processing region
Spending calculation formula is A=360 ° × [(d2-d3)/V+1] × d3/D, and in formula, A is single area angle, and d2 is the pitch diameter of thread, and d3 is
Diameter of thread, D are cylindrical die roll outer diameter, and V is the screw-rolling machine axis feeding speed for driving cylindrical die roll.
6. the subregion application method of cylindrical die roll according to claim 5, which is characterized in that the number in the rolling and processing region
Measuring calculation formula is S=D/ { [(d2-d3)/V+1] × d3 }, and in formula, S is the number of partitions in the rolling and processing region.
7. the subregion application method of cylindrical die roll according to claim 2, which is characterized in that the circulation rolling and processing method
It further include the initial position angle when cylindrical die roll carries out rolling and processing being controlled using numerically-controlled machine tool, i.e., in the numerical control machine
The rolling and processing initial position angle that first rolling and processing region is arranged on bed is a, when first rolling and processing region
It is a+A by the rolling and processing initial position angle that the numerically-controlled machine tool controls second rolling and processing region after damage, with
This analogizes, and the rolling and processing initial position angle in the S rolling and processing region is a+ (S-1) A.
8. the subregion application method of cylindrical die roll according to claim 7, which is characterized in that the angular range of a is 1 °
~10 °.
9. the subregion application method of cylindrical die roll according to claim 7, which is characterized in that each rolling and processing region
After the rolling and processing for completing single, loading and unloading gap is carried out in fastener, the numerically-controlled machine tool is by control for driving rolled thread
The main shaft of wheel continues forward or reverse, the rolling and processing region to be made to return to corresponding initial position angle.
10. the subregion application method of cylindrical die roll according to claim 2, which is characterized in that in each rolling and processing
During the single rolling and processing in region, actual bearer area is that the roll forming area and the school type roll area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085237.9A CN109201980B (en) | 2018-09-18 | 2018-09-18 | Partitioned use method of thread rolling wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085237.9A CN109201980B (en) | 2018-09-18 | 2018-09-18 | Partitioned use method of thread rolling wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109201980A true CN109201980A (en) | 2019-01-15 |
| CN109201980B CN109201980B (en) | 2020-04-17 |
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ID=64984558
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811085237.9A Active CN109201980B (en) | 2018-09-18 | 2018-09-18 | Partitioned use method of thread rolling wheel |
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|---|---|---|---|---|
| JP2001349313A (en) * | 2000-06-08 | 2001-12-21 | Tomikawa Seisakusho:Kk | Male screw and rolling method for it |
| CN201361668Y (en) * | 2008-11-17 | 2009-12-16 | 浙江正达模具有限公司 | Ring-type axial-fed thread rolling die for double-circular-arc progressive thread form |
| CN201558922U (en) * | 2009-10-27 | 2010-08-25 | 杜鸣 | Thread rolling wheel for machining high-intensity and high-precision screw rod |
| CN103611856A (en) * | 2013-11-13 | 2014-03-05 | 四川柯世达汽车制动系统集团有限公司 | Rolling tool for axial external threads |
| CN106424492A (en) * | 2016-10-31 | 2017-02-22 | 洛阳中岩工程材料有限公司 | Method for rolling threads of different screwing directions through same cylindrical die roll |
-
2018
- 2018-09-18 CN CN201811085237.9A patent/CN109201980B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001349313A (en) * | 2000-06-08 | 2001-12-21 | Tomikawa Seisakusho:Kk | Male screw and rolling method for it |
| CN201361668Y (en) * | 2008-11-17 | 2009-12-16 | 浙江正达模具有限公司 | Ring-type axial-fed thread rolling die for double-circular-arc progressive thread form |
| CN201558922U (en) * | 2009-10-27 | 2010-08-25 | 杜鸣 | Thread rolling wheel for machining high-intensity and high-precision screw rod |
| CN103611856A (en) * | 2013-11-13 | 2014-03-05 | 四川柯世达汽车制动系统集团有限公司 | Rolling tool for axial external threads |
| CN106424492A (en) * | 2016-10-31 | 2017-02-22 | 洛阳中岩工程材料有限公司 | Method for rolling threads of different screwing directions through same cylindrical die roll |
Non-Patent Citations (1)
| Title |
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| 张大伟等: "外螺纹冷滚压精密成形工艺研究进展", 《锻压装备与制造技术》 * |
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| CN109201980B (en) | 2020-04-17 |
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