CN101758631B - Electromagnetic lead screw driving type precise-punching presser - Google Patents
Electromagnetic lead screw driving type precise-punching presser Download PDFInfo
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- CN101758631B CN101758631B CN2010100396890A CN201010039689A CN101758631B CN 101758631 B CN101758631 B CN 101758631B CN 2010100396890 A CN2010100396890 A CN 2010100396890A CN 201010039689 A CN201010039689 A CN 201010039689A CN 101758631 B CN101758631 B CN 101758631B
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- lead screw
- presser
- punching
- electromagnetic
- driving type
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/42—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by magnetic means, e.g. electromagnetic
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses an electromagnetic lead screw driving type precise-punching presser which comprises a presser body, a working platform, a controller and a stand, wherein the presser body is fixed on the working platform; the stand is arranged above the working platform, and is movably connected with the stand through a connecting plate. The stand is provided with an electromagnetic lead screw system which comprises an electromagnetic nut and a punch shaft. The electromagnetic nut is fixed on the stand, and comprises two circular cores. Each circular core is divided into two parts by a coil. A circular permanent magnet is clamped between the two cores. The punch shaft penetrates through the stand and the electromagnetic nut, and has a gap with the electromagnetic nut. Threads which have the same pitch are processed at the inner hole side of the circular core and the part of the punch shaft. The controller is used for controlling the density, the frequency and the phase of the current in the coil. The invention has the advantages of adjustable speed and punch force, quick response, high guiding and positioning precision, simple structure, convenient control, less component consumption, low noise, convenient maintenance and long service life.
Description
Technical field
The invention belongs to the mechanical & electrical technology field, relate to a kind of fine blanking press that adopts electromagnetism screw mandrel driven punch or slide block, can be widely used in the fine-edge blanking equipment.
Background technology
Fine-edge blanking (smart dash) be a kind of techno-economic effect preferably the advanced person shape technology, can directly obtain shear surface roughness and the less fabricated part of dimensional tolerance.Fine blanking press has following main feature for the requirement of satisfying fine blanking technology: mold closing and backhaul fast, and the stamping-out closure pressing speed is low and adjustable; The fine blanking die gap is little, high guiding accuracy; The final position is accurate, to prolong die life.The main transmission form of fine blanking press is generally mechanical type and fluid pressure type at present.Mechanical press utilizes turning motor to drive flywheel more, and again through the elbow-bar mechanism driving sliding block, stressed on the slide block have a horizontal component; Can influence guiding accuracy; Stroke curve can not change arbitrarily according to technological requirement, and the drive mechanism link is too much, and accumulated error is big.Fluid pressure type uses comparatively general, but its complex structure, the repeatable accuracy of closed height is not high, and it is little to be not suitable for size, and the essence of thin thickness is towards part, and the hydraulic pressure acc power is bigger, and the hydraulic system maintenance also bothers, and the number of strokes is low.At present the electromagnetic type forcing press by linear motor driving is arranged also, its drive motors is mainly line inductance electromotor and permanent magnet linear synchronous motor.The forcing press that adopts line inductance electromotor to drive, efficient is not high, and rush of current is big, and control accuracy is not high; And the forcing press that adopts permanent magnet linear synchronous motor to drive is equipped with permanent magnet on the ram axle, and permanent magnet is impaired easily in the course of the work, and service life is not long.
Summary of the invention
The present invention provides a kind of electromagnetic lead screw driving type precise-punching presser, and this forcing press speed and stamping press are adjustable, and response is led and the positioning accuracy height fast; Simple in structure, control is convenient, and the parts loss is little; Noise is little, and is easy to maintenance, the fine blanking press of long service life.
A kind of electromagnetic lead screw driving type precise-punching presser; Comprise fuselage, workbench, controller and frame; Fuselage is fixed on the workbench; Frame is positioned at the workbench top, flexibly connects through gusset piece and fuselage, and the electromagnetic lead screw system that comprises electromagnetism nut and ram axle is installed on the described frame; Described electromagnetism nut is fixed on the frame, comprises two ring-shaped cores, and each ring-shaped core is divided into two parts up and down by coil, two middle annular permanent magnets that accompany unshakable in one's determination; Described ram axle runs through frame and electromagnetism nut, leaves the space with the electromagnetism nut; The endoporus side of ring-shaped core be processed with the screw thread (ram axle is processed threaded part and constituted leading screw) of identical pitch with the part of ram axle in frame; Size, frequency and the phase place of the electric current in the described controller control coil, thereby the drawing velocity of controlled pressure machine and nominal pressure are to satisfy the processing request of different parts.Through the segmentation control of controller, can improve the positioning accuracy of forcing press to electric current.
Described workbench is provided with T-slot, is used for fixing the device and the parts such as flanging system, counter-pressure system of clamping die.
Ring-shaped core is N+1/2 (N=0,1,2 by the spacing of two parts up and down that coil is divided into ...) times pitch, i.e. n/2 times of pitch, n is a positive odd number.At this moment, the up and down two-part magnetic conductance difference of ring-shaped core is maximum, and under the effect of electric current, the electromagnetism nut produces maximum thrust to leading screw in coil.
Distance between two ring-shaped cores is N ± 1/4 (N=0,1,2 ...) times pitch and distance be for negative, i.e. n/4 times of pitch, n is a positive odd number.This moment, the relative position of two ring-shaped cores and leading screw differed 1/4 pitch, cooperated change in current rule in two coils, and leading screw is produced continuous thrust.
Described ram axle top is T-shaped, and T shape downside is provided with buffer substrate tablet, mechanically is provided with the range amount, prevents in particular cases impact failure drift and mould.
Described ram axle below has the die shank seat, can be used for solid punch and carries out the straight line punching press.
The groove of the screw thread of ram axle is filled with epoxy resin.
Be provided with the linear slide bearing of interference fit between described ram axle and the frame, make to maintain even space between electromagnetism nut and the leading screw.
The below of described ram axle and frame junction are provided with gathering sill, prevent that ram axle from rotating, and can improve the guiding rigidity of fine blanking press, make forcing press multistation continuously smart towards the time have an eccentric ability of cutting out lotus of bearing.
The operation principle of forcing press of the present invention is: when feeding forward current in the electromagnetism nut coil (current phase differs 90 degree in two groups of coils); Leading screw directly drives the rectilinear motion that punch carries out vertical direction; Punching press downwards, in each coil electricity cycle, screw mandrel moves a pitch along straight line; After the punching press action is accomplished, feed reversing the current in the electromagnetism nut coil, leading screw moves vertically upward, drives the punch fast lifting to predetermined altitude, accomplishes an operation cycle.Accurate control through to size of current, frequency and phase place in the electromagnetism nut coil can realize speed, Position Control to leading screw that is punch, thereby guarantees to realize the fine-edge blanking to workpiece.After the outage, the permanent magnet of electromagnetism nut part produces latching force to leading screw, makes leading screw that is punch maintain the fixed position.
The fine blanking press that this electromagnetic lead screw drives has the following advantages:
(1) simple in structure, cost is low
This forcing press has no intermediate transmission mechanism, and screw mandrel also directly processes on ram axle, and is simple in structure, and parts are few, and maintenance is little.And these forcing press parts are easy to process, and cost is low.In addition, do not have permanent magnet or other structure members on the ram axle, globality is better, and is not fragile, long service life.
(2) stepless time adjustment
The point-to-point speed of leading screw can be controlled through power frequency in the electromagnetism nut coil, can realize stepless time adjustment easily.Guarantee that in punching course, punch descends fast, matched moulds is sheared and the punch quick return at a slow speed, and punch movement velocity curve can accurately be controlled, and has improved the production efficiency and the machining accuracy of fine blanking press, and can adapt to the part processing of different-thickness and material.
(3) accurately locate
Each current cycle, electromagnetic lead screw straight line move a pitch, and the segmentation control through to electric current just can realize the accurate location to leading screw, guarantees the machining accuracy of workpiece.Simultaneously,, can make punch be parked in the circular arc cutting edge place of die just, prolong the service life of mould the accurate control of ram axle position.
(4) has self-lock ability
After the outage, the permanent magnet part still produces latching force to leading screw in the electromagnetism nut, makes leading screw that is punch maintain the fixed position.Removed back-moving spring; Avoided the aging unreliability of bringing of spring; And the problem that electromagnetic puncher punch after outage in the past can fall back minimum point, stamping-out failure and personal safety problem that the slide block quick downslide of having avoided punch press outage suddenly to cause possibly cause have been solved.
(5) stroke is adjustable
This forcing press need not frame for movement is carried out any adjustment, just can change top dead-centre and lower dead point position easily, changes closed height and path increment, to adapt to different fine-edge blanking spares.
Description of drawings
Fig. 1 is the structural representation of fine blanking press of the present invention.
The specific embodiment
Fine blanking press agent structure as shown in Figure 1 is made up of fuselage 1, workbench 2, controller 3 and frame 4.Workbench 2 is provided with T-slot, is used for fixing the device and the parts such as flanging system, counter-pressure system of clamping die.Frame 4 links to each other with fuselage 1 through gusset piece 5, and its height can be adjusted with the requirement of closed height.The electromagnetic lead screw system is installed on the frame 4.Electromagnetism nut 6 is through being bolted on the frame 4, and electromagnetism nut 6 comprises two ring-shaped cores 7, and each ring-shaped core 7 is divided into two parts up and down by coil 8, and two parts spacing is n/2 (n is an a positive odd number) times pitch.Two iron core 7 middle distances that accompany between an annular permanent magnet 9, two iron cores are n/4 (n is a positive odd number) times pitch.Ram axle 11 runs through frame 4 and electromagnetism nut 6, and the part of ram axle 11 in frame 4 is processed with screw thread, constitutes leading screw 10, and the groove of leading screw 10 screw threads is filled with epoxy resin.Ram axle 11 belows have die shank seat 12, can be used for stationary rivet die and carry out the straight line punching press.Ram axle 11 tops are T-shaped, and the downside of T shape has buffer substrate tablet 13, mechanically are provided with the range amount, prevent in particular cases impact failure drift and mould.Dress is with the linear slide bearing 14 of interference fit between ram axle 11 and the frame 4; Make and maintain even space between electromagnetism nut and the leading screw; Ram axle 11 belows simultaneously are processed with gathering sill 15 with the junction of frame 4, prevent that ram axle from rotating; Improve the guiding rigidity of fine blanking press, make forcing press multistation smart continuously towards the time have an eccentric ability of cutting out lotus of bearing.
When feeding forward current in the coil 8 of electromagnetism nut 6 (current phase differs 90 degree in two groups of coils), leading screw 10 directly drives the rectilinear motion that punch carries out vertical direction, punching press downwards, and in each 8 energising cycle of coil, screw mandrel 10 moves a pitch along straight line; After the punching press action is accomplished, feed reversing the current in the coil 8 of electromagnetism nut 6, leading screw 10 moves vertically upward, drives the punch fast lifting to predetermined altitude, accomplishes an operation cycle.The size of electric current, frequency and phase place in the controller control coil, thereby the drawing velocity of controlled pressure machine and nominal pressure are to satisfy the processing request of different parts.Through the segmentation control of controller, can improve the positioning accuracy of forcing press to electric current.
According to forcing press nominal pressure difference, can adjust the number of electromagnetism nut.
Claims (9)
1. electromagnetic lead screw driving type precise-punching presser; Comprise fuselage, workbench, controller and frame; Fuselage is fixed on the workbench; Frame is positioned at the workbench top, flexibly connects through gusset piece and fuselage, it is characterized in that: the electromagnetic lead screw system that comprises electromagnetism nut and ram axle is installed on the described frame; Described electromagnetism nut is fixed on the frame, comprises two ring-shaped cores, and each ring-shaped core is divided into two parts up and down by coil, two middle annular permanent magnets that accompany unshakable in one's determination; Described ram axle runs through frame and electromagnetism nut, leaves the space with the electromagnetism nut; The endoporus side of ring-shaped core and the part of ram axle in frame are processed with the screw thread of identical pitch; Size, frequency and the phase place of electric current in the described controller control coil.
2. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: described workbench is provided with T-slot.
3. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: ring-shaped core is a n/2 times of pitch by the spacing of two parts up and down that coil is divided into, and n is a positive odd number.
4. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: the distance between two ring-shaped cores is a n/4 times of pitch, and n is a positive odd number.
5. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: described ram axle top is T-shaped, and T shape downside is provided with buffer substrate tablet.
6. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: described ram axle below has the die shank seat.
7. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: the groove of the screw thread of ram axle is filled with epoxy resin.
8. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: the linear slide bearing that is provided with interference fit between described ram axle and the frame.
9. electromagnetic lead screw driving type precise-punching presser as claimed in claim 1 is characterized in that: the below of described ram axle and frame junction are provided with gathering sill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100396890A CN101758631B (en) | 2010-01-15 | 2010-01-15 | Electromagnetic lead screw driving type precise-punching presser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100396890A CN101758631B (en) | 2010-01-15 | 2010-01-15 | Electromagnetic lead screw driving type precise-punching presser |
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| Publication Number | Publication Date |
|---|---|
| CN101758631A CN101758631A (en) | 2010-06-30 |
| CN101758631B true CN101758631B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010100396890A Expired - Fee Related CN101758631B (en) | 2010-01-15 | 2010-01-15 | Electromagnetic lead screw driving type precise-punching presser |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956274B (en) * | 2011-08-17 | 2016-06-29 | 中国核动力研究设计院 | Mixing linear reluctance motor type control rod driving mechanism |
| CN106739119B (en) * | 2016-12-30 | 2019-02-22 | 江苏扬力数控机床有限公司 | The energy-saving electronic formed punch of one kind and its working method |
| CN107159763A (en) * | 2017-06-02 | 2017-09-15 | 潘昭恺 | A kind of electromagnetic type stamping machine |
| CN107482958B (en) * | 2017-09-04 | 2019-10-25 | 武汉理工大学 | Based on two degrees of freedom mechnical servo high speed fine machine bi-motor cooperative control method |
| CN109444535B (en) * | 2018-12-06 | 2023-10-20 | 国网辽宁省电力有限公司鞍山供电公司 | Electric energy meter with remote control electromagnetic charging seal |
| CN113665163B (en) * | 2021-07-29 | 2022-03-22 | 郑州华隆机械制造有限公司 | Numerical control press based on thing networking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225351Y (en) * | 1995-06-12 | 1996-04-24 | 李抚生 | Two-way electromagnetic driving high speed pressing machine |
| CN1363457A (en) * | 2002-01-17 | 2002-08-14 | 叶宏成 | Electromagnetic punching machine |
| CN1923499A (en) * | 2006-09-18 | 2007-03-07 | 钟青柳 | Electromagnetic punching machine |
| CN101298194A (en) * | 2007-04-30 | 2008-11-05 | 刘新广 | Magnetic punching machine |
| CN201619254U (en) * | 2010-01-15 | 2010-11-03 | 浙江大学 | Electromagnetic screw rod drive type fine blanking press |
-
2010
- 2010-01-15 CN CN2010100396890A patent/CN101758631B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225351Y (en) * | 1995-06-12 | 1996-04-24 | 李抚生 | Two-way electromagnetic driving high speed pressing machine |
| CN1363457A (en) * | 2002-01-17 | 2002-08-14 | 叶宏成 | Electromagnetic punching machine |
| CN1923499A (en) * | 2006-09-18 | 2007-03-07 | 钟青柳 | Electromagnetic punching machine |
| CN101298194A (en) * | 2007-04-30 | 2008-11-05 | 刘新广 | Magnetic punching machine |
| CN201619254U (en) * | 2010-01-15 | 2010-11-03 | 浙江大学 | Electromagnetic screw rod drive type fine blanking press |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-86298A 2002.03.26 |
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| CN101758631A (en) | 2010-06-30 |
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