CN1302701A - Electromagnetic rivetter - Google Patents
Electromagnetic rivetter Download PDFInfo
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- CN1302701A CN1302701A CN00113765A CN00113765A CN1302701A CN 1302701 A CN1302701 A CN 1302701A CN 00113765 A CN00113765 A CN 00113765A CN 00113765 A CN00113765 A CN 00113765A CN 1302701 A CN1302701 A CN 1302701A
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- riveting gun
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/16—Drives for riveting machines; Transmission means therefor
- B21J15/24—Drives for riveting machines; Transmission means therefor operated by electro-magnets
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Abstract
An electromagnetic rivetter features that several 3-5 KV pulse capacitors are parallelly connected in its power supply system, the programmable controller and real-time digital display of voltage are used in its operating circuit, the overcurrent, overvoltage, overcharge and leakage monitor and protection are added to its control system and Its riveting hitter has dual damping layers. Its advantages are high capacitor capacity, low riveting voltage and loading rate, low recoil and noise, low cost and high riveting quality.
Description
Electromagnetic rivetter involved in the present invention is mainly used in the riveted joint of various material rivets in Aeronautics and Astronautics, automobile and the science of bridge building, is applicable to the riveted joint of difficult moulding material rivet and large-diameter rivets.
In the product of Aeronautics and Astronautics engineering is made, need the rivet of a large amount of various materials of riveted joint.Traditional clinching method has:
The hammering clinching method that with compressed air is power source is used commonplacely.But recoil and noise that this clinching method produces are big, and working condition is poor, workman's fatiguability, and riveting quality is subjected to artificial factor, and the recoil that produces during the riveted joint large-diameter rivets makes the workman be difficult to bear.
With hydraulic pressure is the riveting method of power source.Adopt the static pressure mode to make the rivet distortion, riveting quality is more stable.But general squeeze riveter is relatively heavier, can not be used for not opening wide the riveted joint at position, also can't move easily in the workshop; And hand portable riveter is mainly used in the riveted joint of minor diameter rivet, the requirement of structure opening character has also been influenced the extensive use of this method.Above-mentioned common clinching method generally can only be used for the riveted joint of common material rivet, is not suitable for the riveted joint of difficult moulding material rivets such as titanium alloy.
The swell increment of rivet nail bar was inhomogeneous when another deficiency of common clinching method was riveted joint, was difficult to realize along whole nail bar interference being arranged all that joint is low fatigue life for the heavy parting structure.When adopting the hammer riveting, structure can be subjected to impact force action, thereby is not suitable for the riveted joint of composite.
In engineering reality,, adopt sometimes to add hot riveting for riveting difficult moulding material rivet.This clinching method efficient is low, the cost height.The difficulty that is run into when large-diameter rivets is riveted, the employing of having to sometimes in the design is spirally connected and replaces riveted joint, thereby has increased construction weight, has reduced joint efficiency.
On May 7th, 3961739,1974) and the portable electromagnetic rivetter of thump (United States Patent (USP): on December 2nd, 3559269,1971) in order to solve the existing problem of common clinching method, stress wave clinching method and equipment (United States Patent (USP): has been invented by the U.S..The basic ideas of these two patents are identical, all are to convert electrical energy into mechanical energy by capacitor and primary coil, finish the distortion of rivet.At first to capacitor charging stored energy, capacitor discharges to the primary coil in the riveting gun then.In the moment of discharge, two coils in the riveting gun produce powerful repulsion, and reach rivet, finish riveted joint.These two patents invent equipment all adopt high voltage up to 10000 volts, the capacitance of equipment is less, the loading speed height during riveted joint, micro-crack appears in the heading of some rivet easily.In addition, the coil that equipment adopted is made difficulty, cost height, life-span weak point.Rivet existing problem for solving high pressure electromagnetic riveting or stress wave, electromagnetic pulse driver (European patent: on May 27th, 0293257,1988) has been invented by the U.S..This riveting equipment adopts electrolytic capacitor, has increased the capacitance of equipment, has reduced riveted joint voltage (riveted joint voltage is generally below 500 volts), thereby has reduced loading speed, has improved riveting quality.But electrolytic capacitor is not to be fit to very much this condition of work of pulsed discharge, thereby the life-span is limited, needs to change capacitor behind the use certain hour, and this has increased the riveted joint cost naturally.
In order to overcome the riveting equipment voltage height that exists in the prior art, the security reliability of equipment is poor, and riveting quality is difficult for problems such as assurance and riveted joint cost height, the present invention proposes a kind of new electromagnetic rivetter.
For realizing purpose of the present invention, this new electromagnetic rivetter has adopted following technical scheme.
1. to have adopted rated voltage be the impulse capacitor of 3000-5000V to the power-supply system of equipment, about 2000 volts of common voltages.Adopt a plurality of capacitor parallel connections that the capacitance of equipment is increased, thereby reduced the loading speed of equipment, improved riveting quality.
2. be the antijamming capability of raising power-supply system and the reliability of equipment, operation circuit is by Controlled by Programmable Controller.Adopt potentiometer to set riveted joint voltage and also adopt simulation table synchronous digital to show, the virtual voltage of capacitor has improved the convenience that equipment uses with the demonstration of high-voltage digital table.
3. riveting gun adopts cushion blocking and the double-deck vibration damping of spring, and the vibration damping interlayer is added with mass, recoil that produces when riveting to reduce and riveted joint noise.
4. traditional coil is improved.The primary coil that the present invention is used, from the life-span and quality problems that connected mode and loop construction have solved coil: with copper strips respectively with nipple with outside jointing fixedly connected, and two outer jointings are fixed on the coil case.
5. charging voltage control realizes replenishing in real time of voltage by the PI control mode of Voltage loop, avoids causing the capacitor electrode drops because of the operating current of sensor, has guaranteed the stable of rivet force.Increased overcurrent in the control system, overvoltage overcharges, and the electric leakage monitoring waits defencive function.
6. the indicator lamp by different colours provides dialogue function between riveting gun and top iron, has improved the engineering practicability of equipment.
7. by the compressed air cooling coil, heat dissipating method is simple and practical, has solved because of the too high problem that influences its job stability of coil working temperature.
Since power-supply system parallel connection of the present invention a plurality of impulse capacitors; the operation circuit Controlled by Programmable Controller; voltage shows in real time, has increased overcurrent, overvoltage in control system; overcharge; the electric leakage monitoring waits defencive function and uses cushion blocking and the method for the double-deck vibration damping of spring in riveting gun, and the capacitance of equipment is increased, and loading speed reduces; recoil and noise during riveted joint are little, have improved convenience and riveting quality that equipment uses.The employing of new coil has solved the quality problems of electromagnetic rivetter key components, and the through engineering approaches degree of equipment is further enhanced.The employing of impulse capacitor has solved short problem of life-span when electrolytic capacitor is used for pulsed discharge, has reduced the riveted joint cost.
Accompanying drawing one is the electromagnetic rivetter schematic diagram;
Accompanying drawing two is an electromagnetism riveting gun structure chart;
Accompanying drawing three is top iron construction figure;
Accompanying drawing four is a coil structure.
The present invention will be further described in conjunction with the embodiments.Embodiment one
Electromagnetic rivetter mainly is made up of power-supply system, riveting gun and top iron.Below its implementation process is described in detail.
It is the impulse capacitor of 400 microfarads as 4000V, rated capacity that power-supply system has been used 4 rated voltages.Control system mainly is made up of simulation control part and PLC operation circuit control two parts.Simulation control comprises that mainly charging voltage control, IGCT trigger control and protection part.Charging voltage control realizes replenishing in real time of voltage by the PI control mode of Voltage loop, avoids causing the voltage of capacitor to descend because of the operating current of Hall element.Charging control comprise that voltage is measured in real time and voltage ratio than two parts, when the voltage of institute's survey capacitor during less than setting voltage, charging signals is input to IGCT, continues to charge; When voltage arrives setting value, stop charging.IGCT triggers the TCA785 chip that SIEMENS company is adopted in control.Protection part mainly contains overcurrent, and overvoltage overcharges, Fault Control such as electric leakage, and when overcurrent occurring, overvoltage overcharges or when leaking electricity, and its corresponding alarm signal outputs to panel showing malfunction, and disconnects main contactor simultaneously, the tinkle of bells warning.
Be the antijamming capability of raising power-supply system and the reliability of equipment, operation circuit adopts the Programmable Logic Controller LOGO124L of SIEMENS company, and 12 inputs and 8 outputs are arranged.Adopt potentiometer to set riveted joint voltage, and show with numeral, the virtual voltage of capacitor adopts the high-voltage digital table to show.
Riveting gun mainly contains housing [18], front shroud [14], back shroud [19], handle [1], vibration insulating system (containing mass [5], shock-absorbing spring [20], cushion blocking [6]), primary coil [7], secondary coil [9], modulator [10] and dialogue indicator lamp [8].Riveting gun adopts double-deck vibration damping, and ground floor adopts two-layer JD3 cushion blocking [6], and the second layer adopts spring damping [20], adds useful 45# steel between cushion blocking [6] and the shock-absorbing spring [20] and makes the mass of doing [5].Handle [1] is connected with bonnet [19] by bolt [21], and shock-absorbing spring [20] is contained between handle [1] and the housing [18].Cushion blocking [6] and mass [5] place in the riveting gun housing [18].Riveting gun is provided with Huang, red, green three indicator lamps, respectively expression " charging ", " being charged to " and " being ready to " three kinds of states.Modulator [10] is connected by screw [12] with secondary coil [9].Compressed air enters the inner cooling of riveting gun primary coil [7] by air admission hole [15].Modulator [10], secondary coil [9], primary coil [7] and vibration insulating system are respectively charged in the riveting gun housing [18], and riveting gun housing [18] adopts the nylon manufacturing of good insulation preformance.The outer jointing [25] of primary coil is connected with circumscripted power line by bolt [16] with [28], and circumscripted power line is fixing by compact heap [17].Front shroud [14], back shroud [19] are connected as a single entity by connecting rod [13] with housing [18].
Primary coil [7] external diameter is 100mm, adopts the copper strips coiling of wide 25mm, thick 1mm, and coil has 30 circles.By resin insulating barrier [22], withstanding tight block [23], insulation board [24], outer jointing [25] and [28], copper strips [26] and [27] and in jointing [31] form.Adopt resin and glasscloth insulation between coil turn and the circle; Interior jointing [31] is a copper pipe, and there is screw thread inside, and an end of copper strips [26] and interior jointing [31] weld together with brazing, and by screw [30], copper strips [26] and [27] and outer jointing [28] welding.Secondary coil [9] is the copper coin of 6mm.Safe and reliable for guaranteeing, primary coil shell [29] employing good insulation preformance, the nylon manufacturing that intensity is high.Two outer jointings [25] and [28] of coil are fixed on the nylon outer shell by withstanding tight block [23].
Top iron is made up of handle [32], trigger [33], indicator lamp [34], cushion blocking [35], top iron core [36], shell [37], conical head [38], riveting card [39], and the handle of top iron [32], shell [37] and conical head [38] are made with nylon material.Handle [32] and shell [37] and conical head [38] be by being threaded, and riveting card [39] is positioned the front end of top iron core by interference fits, and it can be changed as required.Top iron core [36] is made with the 45# steel.Yellow, red two indicator lamps [34] are represented " charging " and " being charged to " two states respectively.
When this equipment was riveted the steel rivet of 4mm, riveted joint voltage was about 2300V, and the charging interval is 4 seconds, and the half wave cycles of discharge current is about 800 microseconds.The riveted joint noise is up to 96 decibels, and recoil is about 40～50kg than little two orders of magnitude of rivet force.
According to the EMR-4-12 electromagnetic rivetter of the present invention's development, the maximum storage energy is 12KJ, and the highest riveted joint voltage is 4000V, and about common voltage 2000V, the input power supply is two-phase 380V or single-phase 220V, discharges and recharges frequency and is not less than 8 times/minute.Equipment can be riveted the rivet that 6mm following steel rivet, titanium alloy and high temperature alloy etc. are difficult to moulding material, can realize along whole nail bar certain amount of interference being arranged all for the heavy parting structure.
Embodiment two
Electromagnetic rivetter mainly is made up of power-supply system, riveting gun and top iron.Below its implementation process is described in detail.
It is the impulse capacitor of 400 microfarads as 4000V, rated capacity that power-supply system has been used 6 rated voltages.Control system mainly is made up of simulation control part and PLC operation circuit control two parts.Simulation control mainly comprises charging voltage control, and IGCT triggers control and protection part.Charging voltage control realizes replenishing in real time of voltage by the PI control mode of Voltage loop, avoids causing the voltage of capacitor to descend because of the operating current of Hall element.Charging control comprise that voltage is measured in real time and voltage ratio than two parts, when the voltage of institute's survey capacitor during less than setting voltage, charging signals is input to IGCT, continues to charge; When arriving setting value, voltage stops charging.IGCT triggers the TCA785 chip that SIEMENS company is adopted in control.The protection part mainly contains overcurrent, and overvoltage overcharges, Fault Control such as electric leakage etc.When overcurrent occurring, overvoltage overcharges or when leaking electricity, its corresponding alarm signal outputs to panel and shows malfunction, disconnects main contactor simultaneously, and the tinkle of bells is reported to the police.
Be the antijamming capability of raising power-supply system and the reliability of equipment, operation circuit adopts the Programmable Logic Controller LOGO124L of SIEMENS company, and 12 inputs and 8 outputs are arranged.Adopt potentiometer to set riveted joint voltage, and numeral show that the virtual voltage of capacitor adopts the high-voltage digital table to show.
Riveting gun mainly contains housing [18], front shroud [14], back shroud [19], handle [1], vibration insulating system (containing mass [5], shock-absorbing spring [20], cushion blocking [6]), primary coil [7], secondary coil [9], modulator [10] and dialogue indicator lamp [8].Riveting gun adopts double-deck vibration damping, and ground floor adopts two-layer JD3 cushion blocking [6], and the second layer adopts spring damping [20], adds the mass [5] that useful 45# steel is done between cushion blocking [6] and the shock-absorbing spring [20].Handle [1] is connected with bonnet [19] by bolt [21], and shock-absorbing spring [20] is contained between handle [1] and the housing [18].Cushion blocking [6] and mass [5] place in the riveting gun housing [18].Riveting gun is provided with Huang, red, green three indicator lamps, respectively expression " charging ", " being charged to " and " being ready to " three kinds of states.Modulator [10] is connected by screw [12] with secondary coil [9].Compressed air enters the inner cooling of riveting gun primary coil [7] by air admission hole [15].Modulator [10], secondary coil [9], primary coil [7] and vibration insulating system are respectively charged in the riveting gun housing [18], and riveting gun housing [18] adopts the nylon manufacturing of good insulation preformance.The outer jointing [25] of primary coil is connected with circumscripted power line by bolt [16] with [28], and circumscripted power line is fixing by compact heap [17].Front shroud [14], back shroud [19] are connected as a single entity by connecting rod [13] with housing [18].
Primary coil [7] external diameter is 150mm, adopts the copper strips coiling of wide 25mm, thick 1mm, and coil has 44 circles.By resin insulating barrier [22], withstanding tight block [23], insulation board [24], outer jointing [25] and [28], copper strips [26] and [27] and in jointing [31] form.Adopt resin and glasscloth insulation between coil turn and the circle; Interior jointing [31] is a copper pipe, and there is screw thread inside, and an end of copper strips [26] and interior jointing [31] weld together with brazing, and by screw [30], copper strips [27] and [26] and outer jointing [28] welding.Secondary coil [9] is the copper coin of 6mm.Safe and reliable for guaranteeing, primary coil shell [29] employing good insulation preformance, the nylon manufacturing that intensity is high.Two outer jointings [25] and [28] of coil are fixed on the nylon outer shell by withstanding tight block [23].
Top iron is made up of handle [32], trigger [33], indicator lamp [34], cushion blocking [35], top iron core [36], shell [37], conical head [38], riveting card [39], and the handle of top iron [32], shell [37] and conical head [38] are made with nylon.Handle [32] and shell [37] and conical head [38] are by being threaded, and riveting card [39] can be changed according to the difference of rivet by the front end of interference fits location with the top iron core.Top iron core [36] is made with No. 45 steels.Yellow red two indicator lamps [34] are represented " charging " and " being charged to " two states respectively.According to the EMR-4-19 electromagnetic rivetter of the present invention's development, the maximum storage energy is 19KJ, and the highest riveted joint voltage is 4000V, and the input power supply is two-phase 380V, discharges and recharges frequency and is not less than 6 times/minute.Equipment can be riveted the rivet that 8mm following steel rivet, titanium alloy and high temperature alloy etc. are difficult to moulding material.
When equipment was riveted the steel rivet of 6mm, riveted joint voltage was about 2600V, and the charging interval is 5 seconds, and the half wave cycles of discharge current is about 1200 microseconds.The riveted joint noise is up to 99 decibels.
Claims (6)
1. an electromagnetic rivetter mainly is made up of power supply, electromagnetism riveting gun and top iron, it is characterized in that:
A. the power-supply system of equipment adopts the impulse capacitor of rated voltage 3000-5000 volt, and operation circuit adopts PLC control;
B. riveting gun adopts double-deck vibration damping;
C. the PI control mode of Voltage loop is adopted in charging voltage control.
2. the electromagnetism riveting gun of electromagnetic rivetter according to claim 1 mainly contains handle, vibration insulating system, primary coil, modulator etc., it is characterized in that:
A. the housing of electromagnetism riveting gun is selected nylon material for use;
B. use the compressed air cooling coil;
C. the vibration damping interlayer is added with mass.
3. the primary coil in the electromagnetism riveting gun according to claim 1 is made up of insulating barrier [22], withstanding tight block [23], insulation board [24], jointing [25] and [28] and copper strips [26].It is characterized in that copper strips [26] is fixedlyed connected with outer jointing [25] [28] with interior jointing [31] respectively, and the outer jointing in [25] [28] is fixed on the coil case [29];
4. electromagnetic rivetter according to claim 1 is characterized in that adopting potentiometer to set riveted joint voltage, shows with simulation table synchronous digital, and shows the virtual voltage of capacitor with the high-voltage digital table.
5. electromagnetic rivetter according to claim 1 is characterized in that realizing dialogue with indicator lamp between riveting gun and top iron.
6. as the primary coil in the electromagnetism riveting gun as described in the claim 3, it is characterized in that:
A. the outer jointing [25] of coil is connected with external wire by bolt [16] with [28];
B. nipple [31] is a copper pipe, and there is screw thread inside;
C. primary coil shell [29] is a nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00113765A CN1108205C (en) | 2000-03-24 | 2000-03-24 | Electromagnetic rivetter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00113765A CN1108205C (en) | 2000-03-24 | 2000-03-24 | Electromagnetic rivetter |
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| Publication Number | Publication Date |
|---|---|
| CN1302701A true CN1302701A (en) | 2001-07-11 |
| CN1108205C CN1108205C (en) | 2003-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN00113765A Expired - Fee Related CN1108205C (en) | 2000-03-24 | 2000-03-24 | Electromagnetic rivetter |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817056A (en) * | 2010-04-28 | 2010-09-01 | 哈尔滨工业大学 | Device and method for self-piercing riveting of half-hole rivet loaded by pulse magnet field force |
| CN102527905A (en) * | 2012-01-11 | 2012-07-04 | 西北工业大学 | Headless rivet positioning device and method for controlling overhanging of two ends of headless rivet |
| CN1820873B (en) * | 2005-02-14 | 2012-10-10 | 盈锋科技知识产权私人有限公司 | Magnetic rivet retention system for a rivet-gun |
| CN101890472B (en) * | 2009-05-22 | 2012-11-28 | 中国气动工业股份有限公司 | Digital display module device of rivet/nut gun |
| CN104677723A (en) * | 2015-01-30 | 2015-06-03 | 西北工业大学 | Primary coil of electromagnetic stress wave generator and charging/discharging methods |
| CN108176795A (en) * | 2017-11-29 | 2018-06-19 | 首都航天机械公司 | A kind of magnetic field impulse sealing riveting method of casting aluminium material housing |
| CN109261881A (en) * | 2018-10-30 | 2019-01-25 | 福州大学 | High speed nailing attachment device and connection method |
| CN109954830A (en) * | 2019-04-23 | 2019-07-02 | 沈阳航空航天大学 | A kind of modular electromagnetic caulking gun |
| CN110954261A (en) * | 2019-12-13 | 2020-04-03 | 四川大学 | CFRP structure interference fit fastener pulse electromagnetic force installation voltage calculation method |
| CN112885556A (en) * | 2020-12-28 | 2021-06-01 | 陕西大工旭航电磁科技有限公司 | Electromagnetic riveting control system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US1113837A (en) * | 1913-01-14 | 1914-10-13 | William Smith | Automobile-wheel. |
| US4151735A (en) * | 1977-09-28 | 1979-05-01 | The Boeing Company | Recoil assembly for electromagnetic high energy impact apparatus |
| US4132108A (en) * | 1977-09-28 | 1979-01-02 | The Boeing Company | Ram assembly for electromagnetic high energy impact apparatus |
| US4862043A (en) * | 1987-05-27 | 1989-08-29 | Zieve Peter B | Low voltage electromagnetic pulse actuator |
| US5813110A (en) * | 1996-02-09 | 1998-09-29 | The Boeing Company | Low-voltage eletromagnetic riveter |
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- 2000-03-24 CN CN00113765A patent/CN1108205C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1820873B (en) * | 2005-02-14 | 2012-10-10 | 盈锋科技知识产权私人有限公司 | Magnetic rivet retention system for a rivet-gun |
| CN101890472B (en) * | 2009-05-22 | 2012-11-28 | 中国气动工业股份有限公司 | Digital display module device of rivet/nut gun |
| CN101817056A (en) * | 2010-04-28 | 2010-09-01 | 哈尔滨工业大学 | Device and method for self-piercing riveting of half-hole rivet loaded by pulse magnet field force |
| CN102527905A (en) * | 2012-01-11 | 2012-07-04 | 西北工业大学 | Headless rivet positioning device and method for controlling overhanging of two ends of headless rivet |
| CN104677723A (en) * | 2015-01-30 | 2015-06-03 | 西北工业大学 | Primary coil of electromagnetic stress wave generator and charging/discharging methods |
| CN104677723B (en) * | 2015-01-30 | 2017-06-13 | 西北工业大学 | The main coil of electromagnetic type stress wave producer and the method for charge/discharge |
| CN108176795A (en) * | 2017-11-29 | 2018-06-19 | 首都航天机械公司 | A kind of magnetic field impulse sealing riveting method of casting aluminium material housing |
| CN109261881A (en) * | 2018-10-30 | 2019-01-25 | 福州大学 | High speed nailing attachment device and connection method |
| CN109954830A (en) * | 2019-04-23 | 2019-07-02 | 沈阳航空航天大学 | A kind of modular electromagnetic caulking gun |
| CN110954261A (en) * | 2019-12-13 | 2020-04-03 | 四川大学 | CFRP structure interference fit fastener pulse electromagnetic force installation voltage calculation method |
| CN112885556A (en) * | 2020-12-28 | 2021-06-01 | 陕西大工旭航电磁科技有限公司 | Electromagnetic riveting control system and method |
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| CN1108205C (en) | 2003-05-14 |
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