CN2853261Y

CN2853261Y - High power altrasonic welder

Info

Publication number: CN2853261Y
Application number: CN 200520078821
Authority: CN
Inventors: 成军
Original assignee: Xian University of Technology
Current assignee: Xian University of Technology; Xian University of Science and Technology
Priority date: 2005-05-26
Filing date: 2005-05-26
Publication date: 2007-01-03
Anticipated expiration: 2015-05-26

Abstract

The utility model discloses a high power ultrasonic welder, comprising an acetylene gas generator. The acetylene gas generator is connected with an energy converter and a drive regulating detecting circuit. The energy converter, an amplitude polymerization plant and an up-and-down applicator indenter are sequentially connected. The acetylene gas generator adopts an IGBT inversion supersonic wave acetylene gas generator, and is controlled by the drive regulating detecting circuit to convert the 50 Hz alternating current into 10-50 KHz intermediate frequency alternating current signals with suitable voltage and frequency and exports the current to the energy converter. The energy converter outputs mechanical vibrational energy with corresponding frequency and amplitude to the amplitude polymerization plant. After being adjusted by the amplitude polymerization plant, the mechanical vibrational energy is finally delivered to the welded work piece through the up-and-down applicator pressure head to form the firm weld joints. The high power ultrasonic welder of the utility model utilizes the IGBT inverted circuits as the supersonic wave acetylene gas generator, and utilizes the super-magnetic deformation materials GMM and GMPC vibrator structure components as the energy converter, being capable of achieving big mechanical vibration adjusting extent, high mechanical power outputting, extending the varieties and the thickness of the materials which can be welded.

Description

A kind of large power supersonic wave solder

Technical field

The utility model belongs to field of welding devices, relates to a kind of supersonic welder, is specifically related to a kind of supersonic welder high-power, large amplitude output that adopts.

Background technology

Ultrasonic bonding is a kind of Solid-phase welding method, connection between the weldment is acting in conjunction realization friction, temperature rise and the distortion down by normal pressure and high frequency elastic vibration energy, thereby make workpiece produce the solid phase bonding, have high welding efficiency and good quality of weld joint, be specially adapted to have the welding of high conduction, Heat Conduction Material (metals such as aluminium, silver, copper, nickel).

Supersonic welder is a kind of extraordinary welding equipment that uses ultrasonic technique, present supersonic welder is to be used for plastics and the wire paper tinsel small-power welding machine below 1 millimeter (most for below the 3.3KW) mostly, the kind of its weldable material and the thickness of material are restricted, and the principal element that restriction supersonic welding connection technology can not be given full play to its effect is that the power output and the mechanical vibrational energy of welding machine is big inadequately.

Summary of the invention

The purpose of this utility model provides a kind of supersonic welder, can realize high-power and large amplitude output, thereby enlarge the kind of weldable material and the thickness of weldable material greatly.

The technical scheme that the utility model adopted is, the large power supersonic wave solder comprises generator, and generator is regulated testing circuit with transducer and driving respectively and is connected, transducer, luffing cumulative coupling device and up and down the applicator pressure head be linked in sequence, generator adopts IGBT contravariant supersonic generator.

Generator comprises three-phase rectifier, by generator IGBT1, IGBT2, IGBT3, inverter main circuit and intermediate-frequency transformer T that IGBT4 forms, two outputs of three-phase rectifier are done be connected in series back and capacitor C 1 formation inverse switch circuit in parallel respectively, resistance R 1 and capacitor C 2, resistance R 2 and capacitor C 3, resistance R 3 and capacitor C 4, resistance R 4 be attempted by generator IGBT1 respectively after capacitor C 5 is connected separately, IGBT2, IGBT3, between the utmost point emitter-base bandgap grading of IGBT4, be connected on the inverse switch circuit output end after the elementary windings in series of capacitor C 6 and intermediate-frequency transformer T, the secondary windings of intermediate-frequency transformer T is connected with the transducer field winding, generator IGBT1, IGBT2, IGBT3, the grid of IGBT4 is connected with the corresponding end that drives the adjusting testing circuit respectively.

Transducer comprises shell, coupling is connected with the previous irradiation head to be provided with mass in the shell, mass be connected with the ultra-magnetic telescopic body between the coupling of previous irradiation head is connected, mass with between the coupling of previous irradiation head is connected, the periphery of ultra-magnetic telescopic body is connected with the prestressing force screw rod, be provided with magnetizing coil around the ultra-magnetic telescopic body and between the prestressing force screw rod, with ultra-magnetic telescopic body corresponding position permanent-magnet bias iron is set on the inwall of shell, between coupling connection of previous irradiation head and the shell butterfly spring is set, the previous irradiation head is connected with the coupling of previous irradiation head and links to each other, and stretches out outside the shell.

The prestressing force screw rod is evenly distributed 3.

The utility model with the inverter circuit of IGBT generator as supersonic generator, the industrial-frequency alternating current of 50HZ can be converted into the medium frequency alternating current of 10-40KHZ, realize the high-power output of 5-10kw and possess power, frequency, amplitude is adjustable, has energy-efficient, rapid dynamic response speed and the good advantage of control performance simultaneously; Supersonic welding function of the present utility model realizes big mechanical oscillation adjustable range (10-100 μ m), the output of high mechanical output (5-10KW) and good complete machine performance; Thereby can further widen ultrasonic bonding The Application of Technology scope, enlarge the kind of weldable material and the thickness of weldable material.

Description of drawings

Fig. 1 is a supersonic welder structural principle schematic diagram;

Fig. 2 is the schematic equivalent circuit that the generator of the utility model employing is connected with transducer;

The structural representation of Fig. 3 transducer.

Among the figure, 1. generator 2. drives and regulates testing circuit, 3. transducer, 4. luffing cumulative coupling device, 5. applicator pressure head up and down, 6. mass, 7. ultra-magnetic telescopic body, 8. permanent-magnet bias iron, 9. magnetizing coil, 10. prestressing force screw rod, 11. butterfly springs, 12. previous irradiation head, 13. shell, 14. previous irradiation head couplings connect, 15. three-phase rectifiers.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

Referring to Fig. 1, the large power supersonic wave solder comprises generator 1, and generator 1 adopts IGBT contravariant supersonic generator, generator 1 is respectively with transducer 3 with drive to regulate testing circuit 2 and be connected, transducer 3, luffing cumulative coupling device 4 and up and down applicator pressure head 5 be linked in sequence.

Among Fig. 2, the IGBT contravariant supersonic generator 1 that the utility model adopts comprises three-phase rectifier 15, by generator IGBT1, IGBT2, inverter main circuit and intermediate-frequency transformer T that IGBT3 and IGBT4 form, two outputs of three-phase rectifier 15 are done be connected in series back and capacitor C 1 formation inverse switch circuit in parallel respectively, resistance R 1 and capacitor C 2, resistance R 2 and capacitor C 3, resistance R 3 and capacitor C 4, resistance R 4 be attempted by generator IGBT1 respectively after capacitor C 5 is connected separately, IGBT2, between the utmost point emitter-base bandgap grading of IGBT3 and IGBT4, be connected on the inverse switch circuit output end after the elementary windings in series of capacitor C 6 and intermediate-frequency transformer T, the secondary windings of intermediate-frequency transformer T is connected generator IGBT1 with transducer 3 field windings, IGBT2, the grid of IGBT3 and IGBT4 is connected with the corresponding end that drives adjusting testing circuit 2 respectively.

Among Fig. 3, the transducer that the utility model adopts comprises shell 13, coupling is connected 14 with the previous irradiation head to be provided with mass 6 in the shell 13, mass 6 with connect ultra-magnetic telescopic body 7 between the coupling of previous irradiation head is connected 14, mass 6 is connected between 14 with the coupling of previous irradiation head, the periphery of ultra-magnetic telescopic body 7 is connected with 3 prestressing force screw rods 10,3 prestressing force screw rods 10 are evenly distributed, be provided with magnetizing coil 9 around the ultra-magnetic telescopic body 7 and between the prestressing force screw rod 10, with ultra-magnetic telescopic body 7 corresponding positions permanent-magnet bias iron 8 is set on the inwall of shell 13, the coupling of previous irradiation head connect 14 with shell 13 between be connected butterfly spring 11, previous irradiation head 12 is connected 14 and links to each other with the coupling of previous irradiation head, and stretches out outside the shell 13.

Its operation principle is, generator 1 (is finished desired output by PWM pulse width modulation module and driver module acting in conjunction and is regulated driving through driving adjusting testing circuit 2, frequency tracking circuit is carried out online detection feedback regulation function) control handles and to change the 50HZ alternating current into suitable voltage and frequency the midfrequent AC signal of telecommunication and export transducer 3 to, the mechanical vibrational energy that is had the corresponding frequencies amplitude by transducer 3 outputs passes to luffing cumulative coupling device 4, vibration mechanical energy after will being put in order by luffing cumulative coupling device 4 passes to welded piece by applicator pressure head 5 up and down at last, workpiece shakes and can and produce friction under the normal pressure comprehensive function that adds on the applicator pressure head 5 up and down in elastic mechanical, temperature rise, distortion and machinery are chimeric, form firm welding point at last.

Claims

1. large power supersonic wave solder, comprise generator (1), generator (1) is regulated testing circuit (2) with transducer (3) and driving respectively and is connected, transducer (3), luffing cumulative coupling device (4) and up and down applicator pressure head (5) be linked in sequence, it is characterized in that described generator (1) adopts IGBT contravariant supersonic generator.

2. large power supersonic wave solder according to claim 1, it is characterized in that, described generator (1) comprises three-phase rectifier (15), by generator (IGBT1, IGBT2, IGBT3, IGBT4) inverter main circuit of Zu Chenging and intermediate-frequency transformer (T), two outputs of three-phase rectifier (15) are done be connected in series back and capacitor C 1 formation inverse switch circuit in parallel respectively, resistance R 1 and capacitor C 2, resistance R 2 and capacitor C 3, resistance R 3 and capacitor C 4, resistance R 4 be attempted by generator (IGBT1 respectively after capacitor C 5 is connected separately, IGBT2, IGBT3, between utmost point emitter-base bandgap grading IGBT4), be connected on the inverse switch circuit output end after the elementary windings in series of capacitor C 6 and intermediate-frequency transformer (T), the secondary windings of intermediate-frequency transformer (T) is connected generator (IGBT1 with transducer (3) field winding, IGBT2, IGBT3, IGBT4) grid is connected with the corresponding end that drives adjusting testing circuit (2) respectively.

3. large power supersonic wave solder according to claim 1, it is characterized in that, described transducer (3) comprises shell (13), coupling is connected (14) with the previous irradiation head to be provided with mass (6) in the shell (13), mass (6) is connected with the coupling of previous irradiation head and is connected with ultra-magnetic telescopic body (7) between (14), mass (6) is connected between (14) with the coupling of previous irradiation head, the periphery of ultra-magnetic telescopic body (7) is connected with prestressing force screw rod (10), be provided with magnetizing coil (9) around the ultra-magnetic telescopic body (7) and between the prestressing force screw rod (10), with ultra-magnetic telescopic body (7) corresponding position permanent-magnet bias iron (8) is set on the inwall of shell (13), between previous irradiation head coupling connection (14) and the shell (13) butterfly spring (11) is set, previous irradiation head (12) is connected (14) and links to each other with the coupling of previous irradiation head, and stretches out outside the shell (13).

4. large power supersonic wave solder according to claim 3 is characterized in that, described prestressing force screw rod (10) is evenly distributed 3.