CN1669690A - Frequency conversion motor driven axial automatic feed system of wedge cross-rolling mill - Google Patents
Frequency conversion motor driven axial automatic feed system of wedge cross-rolling mill Download PDFInfo
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- CN1669690A CN1669690A CN 200510011590 CN200510011590A CN1669690A CN 1669690 A CN1669690 A CN 1669690A CN 200510011590 CN200510011590 CN 200510011590 CN 200510011590 A CN200510011590 A CN 200510011590A CN 1669690 A CN1669690 A CN 1669690A
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Abstract
This invention relates to a wedge cross mill axial automatic feeding system of frequency-changer drive, belonging to controlling device field for plastic forming axial parts, which consisting of frequency-changing control system including switch power cabinet, frequency-changing cabinet and control cabinet; and axial feeding device including left stand (1), adjusting screw (2), socket (3), cylinder (4), right stand (5), external skirt (6), bottom board (8). The advantages of the invention are illuminated in that it can meet need of adjusting speed of mill according to rolled piece weight, improve productivity and the motor belongs to starting roll down, which can meet request of automatic, lot size and energy saving production of large-scale axial wedge cross mill.
Description
Technical field
The invention belongs to axial workpiece Plastic Forming control and equipment field, the axial automatic feed system of wedge cross-rolling mill that particularly provides a kind of variable-frequency motor to drive is applicable to the axial automatic feed and the control of all kinds of axle of cross wedge rolling forming part.
Background technology
Cross wedge rolling is a kind of axial workpiece New Forming Process, and its principle is the roll of two band wedge shape moulds, with the equidirectional rotation, drives the rolled piece reverse rotation, is rolled into the axial workpiece of various stairsteppings.This method and traditional forging method are produced axial workpiece relatively, have material-saving significantly, the production efficiency advantages of higher, on axial workpieces such as automobile, tractor, motorcycle, be widely used.
The feeding manner of cross wedge rolling mainly contains two kinds at present: 1) artificial circumference charging (Fig. 1): the bar that heats is fallen on the milling train front console face, on the feeding rack that manually pinches the milling train entrance side, rolled piece freely is rolled between two rollers along the mould circumference by deadweight and is rolled then; 2) mechanical axial admission (Fig. 2): the bar that heats is fallen in the axial blow tank of milling train, at this moment, and throw-out-of clutch, motor rotates, roll and mould do not rotate, and by feeding mechanism the axial pusher of rolled piece are entered between milling train two rolls, and close roll rotation of the back clutch that puts in place is rolled.These two kinds of methods enter the mill milling front motor with next root bar and are in operating condition always rolling finishing, and general roll or universal-joint spindle idle running 1～3 are changeed, and roll rotational speed can not the corresponding adjustment with the increase of rolled piece weight, causes energy consume.In addition, shortcoming such as method one also exists hand feed to lag behind in production, and rolled piece blank positioning accuracy is low causes the rolled piece percent defective to increase or bigger allowance is had to leave in the rolled piece end, causes waste of material; Method two exists the clutch noise of clutch big, wearing and tearing, shortcoming such as perishable.Therefore, above-mentioned two kinds of methods all can not satisfy the automation of macrotype axes series spare cross wedge rolling, mass and energy-conservationization production requirement.
Summary of the invention
The object of the invention is: the axial automatic feed system of wedge cross-rolling mill that provides a kind of variable-frequency motor to drive, solve present cross wedge rolling produce the artificial material loading of macrotype axes series spare lag behind in production, difficultly, positioning accuracy is low, problems such as clutch poor reliability, roll rotational speed can not be adjusted with the workpiece measurement variation, the expensive source of consumptive material realize the full-automation of axial workpiece cross wedge rolling, mass and energy-conservationization production.
The present invention includes: frequency-changing control system (Fig. 3) and axial admission device (Fig. 5, Fig. 6) two parts.Frequency-changing control system comprises: Switching Power Supply cabinet, frequency conversion tank and switch board three parts.Wherein the Switching Power Supply cabinet provides power supply or closes whole system for whole frequency-changing control system; Frequency conversion tank is according to the rolling mill practice requirement, change motor speed by changing electric machine frequency, thereby reach the purpose that changes mill speed, promptly requiring to preset 1～3 section according to pass in each rolling cycle quickens or deceleration periods, rolled piece is under the optimum state is rolled, optimize vector space; Switch board is responsible for process cylinder and backhaul control, detection and localization control, temperature detection control, change and setting program etc., whole flogic system is by a PLC Programmable Logic Controller, by the software (operator platform) of design, accurately, accurate, control each work period of whole rolling automatically.
The axial admission device comprises: left socle 1, adjustment screw 2, base 3, cylinder 4, right support 5, outer deflector chute 6, interior deflector chute 7, base plate 8.Cylinder 4 is fixed on left socle 1 and the right support 5, and left socle 1 and right support 5 are installed on the base 3, realizes that by adjustment screw 2 cylinder satisfies the adjustment of the upper-lower position of rolling mill practice requirement, and its maximum adjustment amount is 50mm.Adopt cylinder 4 to advance, in order to save feed time, process cylinder speed for the previous period is very fast, and bar slows down during near locating piece, and backhaul realizes returning fast by the air bleeding valve on the cylinder 4.The action of cylinder is controlled by logical circuit editors' such as detection and localization (being that the position is detected), time detecting, sequence detection program.In order to guarantee that deflector chute passes through milling train prestressing force two adjusting rods, deflector chute is designed to segmented, promptly outer deflector chute 6 and interior deflector chute 7.Outer deflector chute 6 not only plays the effect of bar axial lead, also bears to receive the qualified bar of heating detection, and interior deflector chute 7 mainly plays the effect of bar axial lead.Outer deflector chute 6 and interior deflector chute 7 are fixed on the base plate 8.Base plate 8 one sides are installed on the right support 5, and opposite side is installed on the fixed block 9 that is welded on the fore side framework memorial archway by regulating bolt 10.When regulating the cylinder upper-lower position, regulate bolt 10 corresponding adjustment.
Technological process in the frequency-changing control system one-period as shown in Figure 4.
The axial admission device adopts cylinder 4 to advance, and in order to save feed time, process cylinder speed for the previous period is very fast, and bar slows down during near locating piece, and backhaul realizes returning fast by the exhaust steam valve on the cylinder 4.The action of cylinder is controlled by logical circuit editors' such as detection and localization (being that the position is detected), time detecting, sequence detection program.Cylinder 4 is fixed on left socle 1 and the right support 5, and left socle 1 and right support 5 are installed on the base 3, realizes that by adjustment screw 2 cylinder satisfies the adjustment of the upper-lower position of rolling mill practice requirement, and its maximum adjustment amount is 50mm.In order to guarantee that deflector chute passes through milling train prestressing force two adjusting rods, deflector chute is designed to segmented, promptly outer deflector chute 6 and interior deflector chute 7.Outer deflector chute 6 not only plays the effect of bar axial lead, also bears to receive the qualified bar of heating detection, and interior deflector chute 7 mainly plays the effect of bar axial lead.Outer deflector chute 6 and interior deflector chute 7 are fixed on the base plate 8.Base plate 8 one sides are installed on the right support 5, and opposite side is installed on the fixed block 9 that is welded on the fore side framework memorial archway by regulating bolt 10.When regulating the cylinder upper-lower position, regulate bolt 10 corresponding adjustment.
Adopt the technology of the present invention and common hand feed to test rolling one-period electric current and time relation as shown in Figure 6.It is as follows that comparative analysis obtains advantage of the present invention:
1) supply delay time weak point, electric current to be expected are zero, and the rolling section common rolling electric current of current ratio is little nearly 1 times, significantly energy-conservation;
2), accurately realize axial location, significantly material-saving by control cylinder and limited block;
3) VFC can be adjusted roll rotational speed according to the rolled piece size, becomes productivity ratio, the production efficiency height;
4) varying frequency starting controlled rolling, good reliability;
5) whole-process automatic control is saved labour cost, the amount of lightening one's labor.
Therefore, the present invention can realize the Automation of Manufacturing Process of cross-wedge-rolling shaft spare, energy savings, the market demand of a satisfied axle class part cross wedge rolling mass, energy-conservationization production.
Description of drawings
Fig. 1 is the artificial circumference charging of a kind of cross wedge rolling of a present invention schematic diagram.Wherein roll 1, rolled piece 2.
Fig. 2 is a kind of cross wedge rolling machinery of the present invention axial admission schematic diagram.Wherein roll 1, rolled piece 2.
Fig. 3 is frequency-changing control system figure of the present invention.
Fig. 4 is a frequency-changing control system process chart of the present invention.
Fig. 5 is an axial admission device of the present invention.Wherein left socle 1, adjustment screw 2, base 3, cylinder 4, right support 5, outer deflector chute 6, interior deflector chute 7, base plate 8.
Fig. 6 is an axial admission device cutaway view of the present invention.Wherein fixed block 9, regulate bolt 10.
Fig. 7 is the present invention and common rolling rolling one-period electric current and time relationship comparison diagram, and what wherein curve had spherical symbol is the rolling curve of frequency conversion, and the common rolling curve that is of square symbols is arranged.
The specific embodiment
The axial automatic feed system of frequency conversion that the present invention adopts alternating current generator to drive, see Fig. 3, Fig. 5, Fig. 6, heating detects and falls in the deflector chute of milling train axial admission device for qualified bar, and at this moment, motor and roll do not turn round, enter milling train two roll shop buildings by the axially automatic pusher of control cylinder, on the bottom roll mould limited block is installed, when bar contact limited block, cylinder carries out the backhaul action, after cylinder piston rod withdrawed from milling train, the rotation of electric motor starting roll was rolled.Fig. 7 demonstrates the present invention and common rolling rolling one-period electric current and time relationship comparison diagram, as seen this system can not only satisfy roll rotational speed along with rolled piece weight increases and corresponding adjustment, boost productivity, and motor is that starting is rolling, enter the mill milling front motor with next root bar and do not turn round rolling finishing, can accurately realize axial location, have the energy-saving material-saving advantage, satisfy the automation of macrotype axes series spare cross wedge rolling, mass and energy-conservationization production requirement.
Claims (4)
1, a kind of axial automatic feed system of wedge cross-rolling mill of variable-frequency motor driving, it is characterized in that: this system comprises: frequency-changing control system and axial admission device two parts; Its frequency-changing control system comprises: Switching Power Supply cabinet, frequency conversion tank and switch board three parts; The axial admission device comprises: left socle (1), adjustment screw (2), base (3), cylinder (4), right support (5), outer deflector chute (6), interior deflector chute (7), base plate (8).
2, according to the described system of claim 1, it is characterized in that: the Switching Power Supply cabinet in the frequency-changing control system provides power supply or closes whole system for whole frequency-changing control system, frequency conversion tank is according to the rolling mill practice requirement, change motor speed by changing electric machine frequency, reach the change mill speed, promptly in each rolling cycle, require to preset 1～3 section and quicken or deceleration periods, rolled piece is under the optimum state is rolled, optimize vector space according to pass; Switch board is responsible for process cylinder and backhaul control, detection and localization control, temperature detection control, change and setting program etc., whole flogic system is by a PLC Programmable Logic Controller, by the software operation hand platform of design, accurately, accurate, control each work period of whole rolling automatically.
3, according to the described system of claim 1, it is characterized in that: the cylinder of axial admission device (4) is fixed on left socle (1) and the right support (5), left socle (1) and right support (5) are installed on the base (3), realize that by adjustment screw (2) cylinder satisfies the adjustment of the upper-lower position of rolling mill practice requirement; Adopt cylinder (4) to advance, backhaul is gone up air bleeding valve by cylinder (4) and is realized returning fast, and the action of cylinder is controlled by detection and localization, time detecting, sequence detection logical circuit editor's program.
4, according to claim 1 or 3 described systems, it is characterized in that: deflector chute is designed to segmented, outer deflector chute (6) and interior deflector chute (7); Outer deflector chute (6) and interior deflector chute (7) are fixed on the base plate (8); Base plate (8) one sides are installed on the right support (5), and opposite side is installed on the fixed block (9) that is welded on the fore side framework memorial archway by regulating bolt (10).When regulating the cylinder upper-lower position, regulate the corresponding adjustment of bolt (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100115909A CN1304131C (en) | 2005-04-19 | 2005-04-19 | Frequency conversion motor driven axial automatic feed system of wedge cross-rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100115909A CN1304131C (en) | 2005-04-19 | 2005-04-19 | Frequency conversion motor driven axial automatic feed system of wedge cross-rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1669690A true CN1669690A (en) | 2005-09-21 |
| CN1304131C CN1304131C (en) | 2007-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100115909A Expired - Fee Related CN1304131C (en) | 2005-04-19 | 2005-04-19 | Frequency conversion motor driven axial automatic feed system of wedge cross-rolling mill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435989C (en) * | 2006-12-12 | 2008-11-26 | 北京科技大学 | Automatic guide-board in-out apparatus of roller-type split wedge transverse miller |
| CN103128105A (en) * | 2011-12-02 | 2013-06-05 | 中国科学院金属研究所 | Vector control sheet metal rolling mill |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1394544A2 (en) * | 1986-03-31 | 1994-01-15 | В.М. Миронцев | Wedge cross rolling mill |
| SU1465161A1 (en) * | 1987-07-17 | 1989-03-15 | Научно-Производственное Объединение По Кузнечно-Прессовому Оборудованию И Гибким Производственным Системам Для Обработки Давлением "Эникмаш" | Arrangement for cross rolling of bar stock |
| SU1731381A1 (en) * | 1990-04-26 | 1992-05-07 | Белорусский Политехнический Институт | Method of manufacture of stepped shafts |
| CN1202927C (en) * | 2003-07-24 | 2005-05-25 | 北京科技大学 | Wedge transverse rolling machine for precison-forming axle blank of train wheel |
| CN1219610C (en) * | 2003-09-28 | 2005-09-21 | 北京科技大学 | Automobile semiaxle wedge cross-rolling precision shaping method |
-
2005
- 2005-04-19 CN CNB2005100115909A patent/CN1304131C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435989C (en) * | 2006-12-12 | 2008-11-26 | 北京科技大学 | Automatic guide-board in-out apparatus of roller-type split wedge transverse miller |
| CN103128105A (en) * | 2011-12-02 | 2013-06-05 | 中国科学院金属研究所 | Vector control sheet metal rolling mill |
| CN103128105B (en) * | 2011-12-02 | 2016-06-01 | 中国科学院金属研究所 | Vector-control metal-plate rolling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1304131C (en) | 2007-03-14 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Rugao Dasheng Line Equipment Co.,Ltd. Assignor: University of Science and Technology Beijing Contract fulfillment period: 2009.2.18 to 2010.2.18 contract change Contract record no.: 2009320000429 Denomination of invention: Frequency conversion motor driven axial automatic feed system of wedge cross-rolling mill Granted publication date: 20070314 License type: Exclusive license Record date: 2009.3.18 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.18 TO 2010.2.18; CHANGE OF CONTRACT Name of requester: RUGAO DASHENG LINE MATERIAL CO.,LTD Effective date: 20090318 |
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Granted publication date: 20070314 Termination date: 20110419 |