CN104942190B - Numerical control rolling mill - Google Patents

Numerical control rolling mill Download PDF

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Publication number
CN104942190B
CN104942190B CN201510347007.5A CN201510347007A CN104942190B CN 104942190 B CN104942190 B CN 104942190B CN 201510347007 A CN201510347007 A CN 201510347007A CN 104942190 B CN104942190 B CN 104942190B
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CN
China
Prior art keywords
fuselage
seat
proportional servo
rolling mill
sliding seat
Prior art date
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Expired - Fee Related
Application number
CN201510347007.5A
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Chinese (zh)
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CN104942190A (en
Inventor
张磊
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SHENGJIAN MACHINERY PLANT QINGDAO CITY SHANDONG PROV
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SHENGJIAN MACHINERY PLANT QINGDAO CITY SHANDONG PROV
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Priority to CN201510347007.5A priority Critical patent/CN104942190B/en
Publication of CN104942190A publication Critical patent/CN104942190A/en
Application granted granted Critical
Publication of CN104942190B publication Critical patent/CN104942190B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00Making helical bodies or bodies having parts of helical shape
    • B21H3/02Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/04Making by means of profiled-rolls or die rolls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00Making gear wheels, racks, spline shafts or worms

Abstract

The present invention relates to metal rolling field, especially a kind of numerical control rolling mill.Upper fuselage and lower fuselage is included including fuselage, wherein fuselage, wherein, also include servo principal axis drive system, proportional servo hydraulic pressure slide feed system and digital control system, servo principal axis system, proportional servo hydraulic pressure slide feed system and digital control system and upper fuselage are each attached on lower fuselage, the two ends of upper fuselage are respectively provided with fuselage side wall, and fuselage side wall and upper fuselage are integral structure.It achieves double main shaft high-precise synchronization and rotates, and two main shafts are completely independent control, can realize automatically tooth position, improve the machining accuracy of equipment.

Description

Numerical control rolling mill
Technical field
The present invention relates to metal rolling field, especially a kind of numerical control rolling mill.
Background technology
Rolling mill is a kind of some metal material plasticity under cold conditions or room temperature that utilizes, under external force, by being rotating Rolling die extruding revolution class blank carry out screw thread process and the processing of spline part a kind of advanced, efficiently, high-quality, low The ELEMENTARY INTRODUCTION TO NON lathe consumed.According to the rolling die number of axle can be filled, single slide rolling mill, two axle rolling mills and the rolling of three axles can be divided into Milling train.
The precision of rolling machine workpieces is affected by each spindle rotation accuracy and synchronization accuracy.Conventional machine tool uses single input axle many The mechanical reducer of output shaft type, owing to being affected by processing and assembly precision, causes each output shaft rotating accuracy unstable, makes Processing workpiece quality is not sufficiently stable, and precision is difficult to improve, it is impossible to meet the higher requirement of user.At full speed along with computer technology Development, the control function of digital control system is constantly strengthened, it is possible to achieve the position of axle each to lathe, speed, the accurate control of torque. Therefore, numerical control rolling mill becomes the development trend of rolling mill.
Summary of the invention
It is an object of the invention to overcome the drawbacks described above that existing rolling mill exists, it is proposed that the numerical control rolling of a kind of new structure Machine, it achieves double main shaft high-precise synchronization and rotates, and two main shafts are completely independent control, can realize, automatically to tooth position, improving The machining accuracy of equipment.
The present invention is to use following technical scheme to realize: a kind of numerical control rolling mill, includes upper machine including fuselage, wherein fuselage Body and lower fuselage, wherein, also include servo principal axis drive system, proportional servo hydraulic pressure slide feed system and digital control system, watch Take axis system, proportional servo hydraulic pressure slide feed system and digital control system and upper fuselage is each attached on lower fuselage, upper fuselage Two ends be respectively provided with fuselage side wall, fuselage side wall and upper fuselage are integral structure;
Described servo principal axis system includes two servomotors, two parallel main shafts, adjustment plate, arc-shaped seat and two sliding seat, Two main shafts are separately fixed in adjustment plate, and main shaft is supported, in front support seat and rear branching holder by front support seat and rear branching holder Being respectively equipped with at least one bearing, the main shaft between front support seat and rear branching holder is provided with roller, the outside of described adjustment plate with The planar side of arc-shaped seat is fixing to be connected, and the arcuate flanks of arc-shaped seat is fixing with sliding seat to be connected, and is fixed with hydraulic cylinder in sliding seat Cylinder body, the piston of hydraulic cylinder is fixed on the inner side of fuselage side wall, and upper fuselage is provided with sliding rail, sliding seat along sliding rail move Dynamic, servomotor is provided with decelerator, servo motor output shaft is connected with decelerator, the output shaft of decelerator and main shaft rigidity Connecting, digital control system is connected with servomotor;
A set of proportional servo hydraulic pressure slide feed system, described proportional servo hydraulic pressure slide feed system it is equipped with in each sliding seat Including proportional servo valve, grating scale and Hydraulic Station, wherein proportional servo valve is connected with digital control system, and Hydraulic Station is connected with hydraulic cylinder, Hydraulic cylinder is connected with proportional servo valve, and proportional servo valve is used for driving hydraulic cylinder, grating scale to be connected with digital control system, digital control system, Grating scale and proportional servo valve composition closed-loop control system.
In the present invention, the medium position of described fuselage is provided with fixture, and workpiece setting is on fixture, and workpiece axial location is adjustable, Fixture is along being perpendicular to the horizontally arranged of fuselage.
Described rear branching holder can be integral structure with adjustment plate.
Being provided with adjusting lever mechanism in described arc-shaped seat, this mechanism includes adjusting lever and ball axle, and one end of adjusting lever is arranged on sliding seat In, the other end is arranged in arc-shaped seat, and the axle portion of ball axle inserts adjusting lever, and the head of ball axle inserts arc-shaped seat, and adjusting lever is arranged In sliding seat and ball axle can be driven to rotate a certain angle with rotary motion, ball axle drives arc-shaped seat to rotate certain angle again Degree, to adjust the depth of parallelism of two main shafts.
The output shaft of described decelerator is connected with main shaft by gear drive, described gear drive include gear wheel with Little gear, the gear shaft of its medium and small gear is fixing with reducer output shaft to be connected, and the gear shaft of gear wheel is fixing with main shaft to be connected, It is achieved that being rigidly connected of servomotor and main shaft, backhaul gap is little, and transmission accuracy is high, and main shaft synchronization accuracy is up to 0.005°.Digital control system is connected with servomotor, by digital control system controlled quentity controlled variable servomotor synchronization action, it is achieved thereby that two The synchronous rotary of main shaft.
Described grating scale is divided into dynamic chi and scale, and wherein scale is arranged on fuselage, and dynamic chi is arranged in sliding seat.Pass through numerical control System makes proportional servo valve work, so that hydraulic cylinder action, and drive sliding seat to move forward and backward, logical in sliding seat motor process After crossing the exact position numerical value that grating scale obtains sender point, above-mentioned position numerical value is transferred to digital control system, thus accurately controls two The speed of sliding seat and displacement of the lines amount, it is achieved the adjustment of two principal axis centre distances and two slide synchronous relative motion and location.
The invention has the beneficial effects as follows:
(1) present invention achieves double main shaft Synchronization Control, it is achieved that double main shaft high-precise synchronization rotate, and improve the processing of equipment Precision;
(2) two main shafts in the present invention are separate, it is achieved that the independently control of two main shafts, are simultaneously achieved Two main shafts automatic to tooth bit manipulation;
(2) passing ratio servo-hydraulic slide feed system achieves two sliding seat synchronous relative motion and location, and passing ratio is watched The closed-loop control system taking valve, digital control system and grating scale composition realizes the constant feed speed of two sliding seat and is accurately positioned.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention;
Fig. 2 is the structural representation of main axle servo drive system of the present invention.
In figure: 1 time fuselage;Fuselage on 2;201 fuselage side wall;3 sliding seat;4 arc-shaped seats;5 adjustment plate;6 servo masters Axle system;601 servomotors;602 decelerators;603 front support seats;604 bearings I;605 bearings II;606 bearings III; 607 little gears;608 gear wheels;7 fixtures;8 rollers;9 main shafts.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
Described numerical control rolling mill includes fuselage, servo principal axis system 6, proportional servo hydraulic pressure slide feed system and digital control system. Wherein fuselage includes fuselage 2 and lower fuselage 1, servo principal axis system 6, proportional servo hydraulic pressure slide feed system and digital control system And upper fuselage is each attached on lower fuselage.Simultaneously the medium position at fuselage is provided with fixture 7, workpiece setting on fixture 7, And axial location is adjustable, fixture is along being perpendicular to the horizontally arranged of fuselage.Described upper fuselage 2 uses spill cast structure, on The two ends of fuselage 2 are respectively provided with fuselage side wall 201, and fuselage side wall 201 and upper fuselage 2 are in integral structure, and this structure strengthens The integral rigidity of lathe, solves absorbing and vibration damping problem, reduces the deformation of fuselage.
Described servo principal axis system includes two servomotors, two parallel main shafts 9, adjustment plate 5, arc-shaped seat 4 and two work Dynamic seat 3, two main shafts 9 are separately fixed in adjustment plate 5, and main shaft 9 is supported by front support seat 603 and rear branching holder, front In propping up bearing 603, bearing I 604 is set, bearing II 605 and bearing III 606, rear branching holder and adjustment plate 5 are set in rear branching holder In integral structure, main shaft 9 uses three-point support, and rigidity is preferable.Main shaft between bearing I 604 and bearing II 605 is provided with Roller 8.The outside of described adjustment plate 5 is fixing with the planar side of arc-shaped seat 4 to be connected, and the arcuate flanks of arc-shaped seat 4 is with movable Seat 3 is fixing to be connected.Being fixed with the cylinder body of hydraulic cylinder in sliding seat 3, the piston of hydraulic cylinder is fixed on the inner side of fuselage side wall 201. Upper fuselage is provided with sliding rail, and sliding seat 3 can move along sliding rail.
Being provided with adjusting lever mechanism in described arc-shaped seat 4, this mechanism includes adjusting lever and ball axle, and one end of adjusting lever is arranged on slip In seat, the other end is arranged in arc-shaped seat, and the axle portion of ball axle inserts adjusting lever, and the head of ball axle inserts arc-shaped seat, and adjusting lever sets Putting in sliding seat and ball axle can be driven to rotate a certain angle with rotary motion, ball axle drives arc-shaped seat to rotate certain angle again Degree, to adjust the depth of parallelism of two main shafts.
Being provided with decelerator 602 on described servomotor 601, servomotor 601 output shaft is connected with decelerator 602, slows down The output shaft of device 602 is connected with main shaft 9 by gear drive, and described gear drive includes gear wheel 608 and little Gear 607, the gear shaft of its medium and small gear 607 is fixing with reducer output shaft to be connected, the gear shaft of gear wheel 608 and main shaft 9 Fixing connecting, it is achieved that being rigidly connected of servomotor 601 and main shaft 9, backhaul gap is little, transmission accuracy height, main shaft Synchronization accuracy is up to 0.005 °.Digital control system is connected with servomotor, controls two servomotor actions by digital control system, watches Taking motor drives guarantee two main shafts to synchronize.When needing tooth, one of them servomotor is failure to actuate, and servo drive control is additionally One servomotor action, so that relatively rotating between two main shafts, thus completes automatically tooth position.
A set of proportional servo hydraulic pressure slide feed system it is equipped with, described proportional servo hydraulic pressure slide feeding system in each sliding seat 3 System includes proportional servo valve, grating scale and Hydraulic Station, and wherein proportional servo valve is connected with digital control system, by digital control system control The valve port of proportional servo valve, thus control the direction of fluid, pressure and flow.Hydraulic Station and lower fuselage are integral structure, liquid Pressure station is connected with hydraulic cylinder, and hydraulic cylinder is connected with proportional servo valve, and proportional servo valve is used for driving hydraulic cylinder.Grating scale is divided into dynamic Chi and scale, wherein scale is arranged on fuselage, and dynamic chi is arranged in sliding seat.Proportional servo valve is made to work by digital control system, So that hydraulic cylinder action, and drive sliding seat to move forward and backward, sliding seat motor process is obtained the essence of sender point by grating scale Really after the numerical value of position, above-mentioned position numerical value is transferred to digital control system, so that digital control system, grating scale and proportional servo valve group Become a closed loop system, accurately control speed and the displacement of the lines amount of two sliding seat, it is achieved the adjustment of two principal axis centre distances and two slides It is synchronized with the movement and positions.
Heretofore described digital control system uses CNC System from Siemens, it is achieved manually, automatically control, and both can realize four axle connection Dynamic, it is possible to single shaft action, possess simple fault diagnosis functions, lathe parameter and the input of machined parameters and editor can be realized.
The work process of this numerical control rolling mill is as follows: by driven by servomotor two main shaft synchronous rotary, fully closed by two sets The proportional servo hydraulic pressure slide feed system of ring accurately controls the synchro-feed of two sliding seats, uses digital control system to control two main shafts and turns Speed and the displacement of two sliding seat, extrude by being arranged on the synchro-feed of the roller on two synchronous rotary main shafts and drive workpiece to revolve Turn, utilize the plastic deformation of metal works to complete the tooth Profile Machining of workpiece.This numerical control rolling mill may be used for low module involute flower The precise cold molding rolling of the slewing parts such as key, in high precision external screw thread, substantially increases the working (machining) efficiency of screw thread and spline, joint About cost, can be widely applied to the industries such as automobile, motorcycle, Aero-Space, machinery, railway, oil.

Claims (6)

1. a numerical control rolling mill, upper fuselage (2) and lower fuselage (1) is included including fuselage, wherein fuselage, it is characterized in that: also include servo principal axis system (6), proportional servo hydraulic pressure slide feed system and digital control system, servo principal axis system (6), proportional servo hydraulic pressure slide feed system and digital control system and upper fuselage are each attached on lower fuselage (1), and the two ends of upper fuselage (2) are respectively provided with fuselage side wall (201);
nullDescribed servo principal axis system (6) includes two servomotors (601)、Two parallel main shafts (9)、Adjustment plate、Arc-shaped seat and two sliding seat,Two main shafts (9) are separately fixed in adjustment plate (5),Main shaft (9) is supported by front support seat (603) and rear branching holder,It is respectively equipped with at least one bearing in front support seat (603) and rear branching holder,Main shaft between front support seat and rear branching holder is provided with roller (8),The outside of described adjustment plate (5) is fixing with the planar side of arc-shaped seat (4) to be connected,The arcuate flanks of arc-shaped seat (4) is fixing with sliding seat (3) to be connected,The cylinder body of hydraulic cylinder it is fixed with in sliding seat (3),The piston of hydraulic cylinder is fixed on the inner side of fuselage side wall (201),Upper fuselage is provided with sliding rail,Sliding seat (3) moves along sliding rail,Servomotor is provided with decelerator (602),Servomotor (601) output shaft is connected with decelerator (602),The output shaft of decelerator (602) is rigidly connected with main shaft (9),Digital control system is connected with servomotor;
A set of proportional servo hydraulic pressure slide feed system it is equipped with in each sliding seat (3), described proportional servo hydraulic pressure slide feed system includes proportional servo valve, grating scale and Hydraulic Station, wherein proportional servo valve is connected with digital control system, Hydraulic Station is connected with hydraulic cylinder, hydraulic cylinder is connected with proportional servo valve, proportional servo valve is used for driving hydraulic cylinder, grating scale to be connected with digital control system, digital control system, grating scale and proportional servo valve composition closed-loop control system;
Being provided with adjusting lever mechanism in described arc-shaped seat (4), adjusting lever mechanism includes adjusting lever and ball axle, and one end of adjusting lever is arranged in sliding seat, the other end is arranged in arc-shaped seat, the axle portion of ball axle inserts adjusting lever, and the head of ball axle inserts arc-shaped seat, and adjusting lever rotates in sliding seat.
Numerical control rolling mill the most according to claim 1, it is characterised in that: the medium position of described fuselage is provided with fixture (7), and workpiece setting is on fixture (7), and workpiece axial location is adjustable, and fixture is horizontally disposed with along the direction being perpendicular to fuselage.
Numerical control rolling mill the most according to claim 1, it is characterised in that: described rear branching holder and adjustment plate (5) are in integral structure.
Numerical control rolling mill the most according to claim 1, it is characterized in that: the output shaft of described decelerator (602) is connected with main shaft (9) by gear drive, described gear drive includes gear wheel (608) and little gear (607), the gear shaft of its medium and small gear (607) is fixing with reducer output shaft to be connected, and the gear shaft of gear wheel (608) is fixing with main shaft (9) to be connected.
Numerical control rolling mill the most according to claim 1, it is characterised in that: described grating scale is divided into dynamic chi and scale, and wherein scale is arranged on fuselage, and dynamic chi is arranged in sliding seat.
Numerical control rolling mill the most according to claim 1, it is characterised in that: described fuselage side wall (201) and upper fuselage (2) are in integral structure.
CN201510347007.5A 2015-06-19 2015-06-19 Numerical control rolling mill Expired - Fee Related CN104942190B (en)

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CN104942190B true CN104942190B (en) 2016-10-19

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Cited By (1)

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IT201800010872A1 (en) * 2018-12-06 2020-06-06 Evirt Italia S R L ROLLING MACHINE TO FORM A THREAD ON A CYLINDRICAL BODY

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ITUA20163757A1 (en) * 2016-05-24 2017-11-24 Mico S R L Rolling machine for forming impressions on cylindrical bodies and method for replacing a forming roll of this rolling machine
CN106493273B (en) * 2016-12-30 2019-01-04 山东大学 A kind of numerical control gear rollforming device and its application
CN106984748A (en) * 2017-05-25 2017-07-28 青岛张氏机械有限公司 Numerically-controlled precise screw-rolling machine and automobile multiple lead screw
IT201800005407A1 (en) * 2018-05-15 2019-11-15 Rolling machine to form a thread on a cylindrical body
CN109093039A (en) * 2018-07-18 2018-12-28 太原科技大学 It is a kind of horizontal cold to strike lathe
CN110202070B (en) * 2019-05-22 2020-09-11 江苏汤湖通讯设备有限公司 Screw thread manufacturing equipment for mouth of rotary-mouth metal bottle
CN110802188B (en) * 2019-10-23 2021-03-19 丽水市莲都区贝亿乐信息技术服务有限责任公司 Full-automatic processing device for external threads of pipe joint
CN111468654A (en) * 2020-05-16 2020-07-31 浙江诚昌机械配件有限公司 High-precision thread rolling machine and thread rolling method thereof

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