CN110479902A - A kind of double acting bend forming die of wire rod - Google Patents
A kind of double acting bend forming die of wire rod Download PDFInfo
- Publication number
- CN110479902A CN110479902A CN201810030323.3A CN201810030323A CN110479902A CN 110479902 A CN110479902 A CN 110479902A CN 201810030323 A CN201810030323 A CN 201810030323A CN 110479902 A CN110479902 A CN 110479902A
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- CN
- China
- Prior art keywords
- guide rod
- pilot sleeve
- magnet
- double acting
- displacement
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The double acting bend forming die of wire rod, including upper die holder, upper cushion block, upper padding plate and shaping upper are equipped with pilot sleeve in the lower end of upper die holder；It is arranged right below molding lower die in shaping upper, the lower end for forming lower die is equipped with lower bolster, and the lower end of lower bolster is equipped with lower die holder, is equipped with guide rod in the upper end of lower die holder, guide rod is set in pilot sleeve, and guide rod can slide up and down in pilot sleeve；Magnet is housed on guide rod or pilot sleeve；The magnet coil is connected with guide rod bias amount control circuit；Eccentric amount control circuit contains displacement detecting circuit, which is converted to control signal by the controller being connected with displacement detecting circuit, the drive magnet after power amplifier amplifies, and realizes automatic centering of the guide rod in pilot sleeve.The medicine have the advantages that structure is simple, guiding accuracy is high, reduces vibration and noise, reduces the abrasion of guide rod and guide sleeve cylinder, reduces maintenance cost.
Description
Technical field
The present invention relates to a kind of double acting bend forming dies of wire rod, more particularly to one kind to realize that guide rod exists by magnetic suspension
The double acting bend forming die of the wire rod felt relieved in pilot sleeve.
Background technique
Friction pair between the double acting bend forming die guide rod of existing wire rod and pilot sleeve is direct contact type,
Between pilot sleeve and guide rod there are gap, in motion process, pilot sleeve and guide rod are prone to bias, guiding essence
Spend lower, vibration and noise is larger.
Summary of the invention
The present invention mainly solves in the double acting bend forming die of wire rod, and pilot sleeve and guide rod are prone to bias,
Guiding accuracy is lower, the biggish deficiency of vibration and noise, to develop a kind of line of guide rod automatic centering in pilot sleeve
The double acting bend forming die of material.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals: the double acting bending and molding of wire rod
Mold, comprising: the lower end length direction level of upper die holder, upper cushion block, upper padding plate and shaping upper, upper die holder is equipped with upper cushion block,
The lower end length direction level of upper cushion block is equipped with upper padding plate, and the lower end length direction level of upper padding plate is equipped with shaping upper, upper
The lower end of die holder is additionally provided with pilot sleeve, and pilot sleeve is located at the side of upper cushion block；Upper die holder lower end be additionally provided with nitrogen gas spring and
Loose plug, nitrogen gas spring sequentially pass through cushion block and upper padding plate from top to bottom, and the telescopic end and loose plug of nitrogen gas spring connect
It connects, loose plug is set in shaping upper, and loose plug can move up and down in shaping upper；
It is arranged right below molding lower die in shaping upper, the lower end length direction level for forming lower die is equipped with lower bolster,
The lower end length direction level of lower bolster is equipped with lower die holder, is additionally provided with guide rod in the upper end of lower die holder, guide rod, which is set in, leads
Into sleeve, and guide rod can slide up and down in pilot sleeve；
Several magnet are housed on guide rod or pilot sleeve；The magnet coil is connected with guide rod bias amount control circuit
It connects；Eccentric amount control circuit contains displacement detecting circuit, and the controller being connected with displacement detecting circuit converts the displacement signal
To control signal, the drive magnet after power amplifier amplifies controls guide rod displacement.
Using the above scheme, guide rod self-centering in pilot sleeve is realized by magnetic suspension, structure is simple, guiding essence
Degree is high, reduces vibration and noise, reduces the abrasion of guide rod and guide sleeve cylinder, reduces maintenance cost.
Preferably, displacement detecting circuit includes that several arrange the sensor on the guide bar or on pilot sleeve, pass
The displacement signal of sensor output is input to controller after displacement conversion circuit transformation, is converted into control signal, warp by controller
Drive magnet after power amplifier amplification controls guide rod displacement.Guide rod phase is detected using sensor in this programme
Guide rod self-centering in pilot sleeve is realized in displacement for pilot sleeve.
Preferably, displacement detecting circuit is used as test signal using pulse-width signal, tests in signal and be loaded with displacement
Information is input to controller after transformed, which is converted to control signal by controller, after power amplifier amplifies
Drive magnet controls guide rod displacement.In the present solution, sensor is not used, using pulse-width signal as test
Signal extracts displacement information from test signal, realizes guide rod self-centering in pilot sleeve.
Preferably, displacement detecting circuit is by band-pass circuit, level-one amplifying circuit, differential detection circuit, demodulator circuit, low
Bandpass filter circuit successively forms, and displacement detecting circuit is using high frequency small-signal as test signal.In the present solution, not using sensing
Device extracts displacement information from test signal using high frequency small-signal as test signal, realizes guide rod in pilot sleeve
Self-centering.
Preferably, magnet is arranged symmetrically on guide rod or pilot sleeve.Radial direction between guide rod and pilot sleeve
Active force autobalance realizes guide rod self-centering in pilot sleeve.
Preferably, being equipped with bracket on pilot sleeve, the magnet is rack-mount.Magnetic circuit is carried out by bracket
Optimization.
Preferably, the magnet is electromagnet, electromagnet dress on the guide bar, on pilot sleeve with electromagnet
Permanent magnet is housed on corresponding position.The permanent magnet is bar shaped.The direction of bar permanent magnet and guide rod are relative to guiding
The direction of motion of sleeve is consistent.By changing the change of flux magnetic force of electromagnet, realize that guide rod is automatic in pilot sleeve
Centering；Be not easy on pilot sleeve installation electromagnet when, by electromagnet dress on the guide bar, on pilot sleeve with electromagnet pair
Permanent magnet is housed on the position answered, realizes guide rod self-centering in pilot sleeve.
Preferably, there is axially extending bore on the guide rod, the conducting wire of electromagnet passes through from through-hole.Avoid conducting wire from leading
Conducting wire and pilot sleeve collide when drawing outside to bar, the service life of extension lead.
Preferably, the magnet is electromagnet, the electromagnet on the pilot sleeve, on the guide bar with electromagnet
Permanent magnet is housed on corresponding position.The permanent magnet is bar shaped.The direction of bar permanent magnet and guide rod are relative to guiding
The direction of motion of sleeve is consistent.By changing the change of flux magnetic force of electromagnet, realize that guide rod is automatic in pilot sleeve
Centering；It is corresponding with electromagnet on the guide bar by electromagnet on pilot sleeve when being not easy to installation electromagnet on guide rod
Position on be equipped with permanent magnet, realize guide rod self-centering in pilot sleeve.
Therefore, real the medicine have the advantages that being controlled by guide rod bias amount control circuit guide rod displacement
Existing automatic centering of the guide rod in pilot sleeve, structure is simple, and guiding accuracy is high, reduces vibration and noise, reduction is led
Abrasion to bar and pilot sleeve, reduces maintenance cost.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of the invention；
Attached drawing 2 is the sectional view of Fig. 1；
Attached drawing 3 is the guide rod displacement self-test schematic diagram of embodiment one；
Attached drawing 4 is the guide rod displacement self-test schematic diagram of embodiment two；
Attached drawing 5 is the guide rod displacement self-test schematic diagram of embodiment three.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1:
As shown in Figure 1 and Figure 2, pilot sleeve 2 is provided with guide rod 5.Bracket 6, the present embodiment are installed in pilot sleeve 2
Using upper layer and lower layer, electromagnet 7 is housed on bracket 6.Electromagnet shown in Fig. 2 is U-shaped.Because the inductance of coil is guide rod displacement
Function, therefore the voltage at its both ends be also guide rod displacement function.
As shown in figure 3, the circuit is by band-pass circuit 1a, level-one amplifying circuit 2a, differential detection circuit 3a, demodulator circuit
4a, low-pass filter circuit 5a composition.In the input terminal of the Linear Power Amplifier of magnet coil, a high-frequency signal is injected as guide rod position
The test signal set, the voltage at both ends is other than acting on ohmically DC component, and there are also the high-frequency signals on inductance
AC compounent.Band-pass circuit 1a is used to extract 0 ingredient of centre frequency ω containing guide rod displacement, filters out DC voltage and 2 ω 0
Above alternating voltage.The consequential signal generally detected is fainter, it usually needs after level-one amplifying circuit 2a amplification, up and down
Two paths of signals subtracts each other to obtain the sinusoidal signal containing centre frequency ω 0 by differential subtraction circuit 3a again, whole by demodulator circuit 4a
The DC voltage of pulsation is converted to after stream, then AC signal is filtered off by low-pass filter circuit 5a, can be obtained inclined with guide rod
The proportional DC voltage of heart amount.Direct current signal containing guide rod displacement, via controller 6a and 8a-1 couples of power amplifier
Guide rod displacement carries out closed-loop control, and the controller of the present embodiment uses PID controller.
In the present embodiment, sensor is not used, using high frequency small-signal as test signal, extracts position from test signal
Information is moved, realizes guide rod self-centering in pilot sleeve.
Embodiment 2:
Fig. 4 is guide rod eccentricity self-check system schematic diagram.The circuit is by biasing circuit, detection circuit and control electricity
Road three parts composition.
The signal that pulse-width signal (PWM) generating device 9a is generated is input in biasing circuit 10a, is produced in electromagnet
Raw bias magnetic field.Since electromagnet inductance coefficent is the function of guide rod displacement, the load of PWM is extracted from control electromagnet
It include guide rod displacement information in wave voltage (or electric current) ingredient.Since control electric current removes biasing in control voltage (electric current)
Outside the carrier component for the PWM that coil mutual inductance comes, there are also control electric current control electromagnet coil on generate voltage (including from
Electrification pressure).Therefore, controlling the resonance circuit 11a extraction that the voltage exported on electromagnet coil has to pass through detection system has
The PWM carrier signal of displacement information.By the signal of extraction after full-wave rectifying circuit 12a rectification, by low-pass filter circuit 5a-
2 become the low frequency signal containing guide rod displacement information.Control signal is converted to by controller again, through power amplifier 8a-2
Drive control electromagnet after amplification carries out closed-loop control to guide rod position.The controller 6a-2 of the present embodiment uses PID control
Device.
In the present embodiment, sensor is not used, using pulse-width signal as test signal, is extracted from test signal
Displacement information realizes guide rod self-centering in pilot sleeve.
Embodiment 3:
In the present embodiment, sensor is housed, using sensor detection guide rod relative to pilot sleeve on pilot sleeve
Displacement, realize guide rod self-centering in pilot sleeve.
Fig. 5 is guide rod eccentricity self-check system schematic diagram.Electricity routing sensor 14a, controller 6a-3, power are put
Two 8a-4 of big one 8a-3 of device and power amplifier, displacement conversion circuit 13a composition.
When guide rod bias, sensor 14a detects displacement signal after displacement conversion circuit 13a conversion, through controlling
Device 6a-3 and power amplifier 8a-3 is transformed to control electric current, and the electromagnetic force of regulating magnet makes pilot sleeve and guide rod certainly
Dynamic centering.
If use while using permanent magnet and electromagnet in above-described embodiment, the iron core of electromagnet can use E sections
The heart.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (9)
1. the double acting bend forming die of wire rod, comprising: upper die holder, upper cushion block, upper padding plate and shaping upper, the lower end of upper die holder are long
It spends direction level and is equipped with upper cushion block, the lower end length direction level of upper cushion block is equipped with upper padding plate, the lower end length direction of upper padding plate
Level is equipped with shaping upper, is additionally provided with pilot sleeve in the lower end of upper die holder, pilot sleeve is located at the side of upper cushion block；Upper die holder
Lower end is additionally provided with nitrogen gas spring and loose plug, and nitrogen gas spring sequentially passes through cushion block and upper padding plate, nitrogen gas spring from top to bottom
Telescopic end connect with loose plug, loose plug is set in shaping upper, and loose plug can in shaping upper up and down
It is mobile；
It is arranged right below molding lower die in shaping upper, the lower end length direction level for forming lower die is equipped with lower bolster, underlay
The lower end length direction level of plate is equipped with lower die holder, is additionally provided with guide rod in the upper end of lower die holder, guide rod is set in guide sleeve
In cylinder, and guide rod can slide up and down in pilot sleeve；
Several magnet are housed on guide rod or pilot sleeve；The magnet coil is connected with guide rod bias amount control circuit；
Eccentric amount control circuit contains displacement detecting circuit, which is converted to control by the controller being connected with displacement detecting circuit
Signal processed, the drive magnet after power amplifier amplifies control guide rod displacement.
2. the double acting bend forming die of wire rod according to claim 1, it is characterised in that: displacement detecting circuit includes several
Sensor of a arrangement on the guide bar or on pilot sleeve, the displacement signal of sensor output is after displacement conversion circuit transformation
Be input to controller, by controller be converted into control signal, the drive magnet after power amplifier amplifies, to guide rod be displaced into
Row control.
3. the double acting bend forming die of wire rod according to claim 1, it is characterised in that: displacement detecting circuit uses pulsewidth
Modulated signal tests in signal as test signal and is loaded with displacement information, be input to controller after transformed, and controller is by the position
Shifting signal is converted to control signal, the drive magnet after power amplifier amplifies, and controls guide rod displacement.
4. the double acting bend forming die of wire rod according to claim 1, it is characterised in that: displacement detecting circuit is powered by band
Road, level-one amplifying circuit, differential detection circuit, demodulator circuit, low-pass filter circuit successively form, and displacement detecting circuit is using high
Frequently small signal is as test signal.
5. the double acting bend forming die of wire rod according to claim 1 or 2 or 3 or 4, it is characterised in that: magnet is being oriented to
It is arranged symmetrically on bar or pilot sleeve.
6. the double acting bend forming die of wire rod according to claim 1 or 2 or 3 or 4, it is characterised in that: on pilot sleeve
Bracket is installed, the magnet is rack-mount.
7. according to the double acting bend forming die of wire rod described in claims 1 or 2 or 3 or 4, it is characterised in that: the magnet is electricity
Magnet, the electromagnet dress on the guide bar, are equipped with permanent magnet on pilot sleeve on position corresponding with electromagnet.
8. according to the double acting bend forming die of wire rod as claimed in claim 7, it is characterised in that: have on the guide rod axial logical
The conducting wire in hole, electromagnet passes through from through-hole.
9. according to the double acting bend forming die of wire rod described in claims 1 or 2 or 3 or 4, it is characterised in that: the magnet is electricity
Magnet, the electromagnet are equipped with permanent magnet on pilot sleeve on the guide bar on position corresponding with electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030323.3A CN110479902A (en) | 2018-01-01 | 2018-01-01 | A kind of double acting bend forming die of wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030323.3A CN110479902A (en) | 2018-01-01 | 2018-01-01 | A kind of double acting bend forming die of wire rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110479902A true CN110479902A (en) | 2019-11-22 |
Family
ID=68543533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810030323.3A Pending CN110479902A (en) | 2018-01-01 | 2018-01-01 | A kind of double acting bend forming die of wire rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110479902A (en) |
-
2018
- 2018-01-01 CN CN201810030323.3A patent/CN110479902A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Sihui Yuancheng Machinery Technology Co. Ltd. Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| PB01 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Hao Document name: Notice of expiration of the time limit for the trial |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Hao Document name: Deemed as a notice of withdrawal |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191122 |