An adjustable ultrasonic welding matching experiment system

Abstract

The adjustable ultrasonic welding matching experiment system comprises a signal generator, a matching circuit board and a transducer, the signal generator is connected with the matching circuit board, the matching circuit board is connected with the transducer to drive the transducer to work, the matching circuit board comprises a first matching module, a second matching module, a third matching module, a fourth matching module, a fifth matching module, a switching switch and a matching inductor, the first matching module, the switching switch and the second matching circuit are sequentially connected between a signal input end and a signal output end of the matching circuit board, the third capacitor and the fourth capacitor are connected in series between another signal input port and another signal output port of the matching circuit board, one end of the matching inductor is connected with the signal input port of the matching circuit board, the other end is connected with the switching switch or the fourth capacitor module, and the fifth matching module is connected with the second matching module. The present application can quickly realize the change of the matching mode, and the purpose of improving the efficiency and saving the time cost is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ultrasonic welding teaching experiment equipment, in particular to an adjustable ultrasonic welding matching experiment system. BACKGROUND

[0002] As a new type of welding method, ultrasonic welding is widely used in manufacturing and processing fields. The ultrasonic welding system generates high-frequency signals through an ultrasonic power supply, and then converts the signals into high-frequency vibrations acting on the welding parts through a transduction system, so that the workpiece surface rapidly heats up to the melting point due to friction, thereby achieving the purpose of welding. The transduction system is an important part of the welding system, mainly including a transducer and a matching circuit. The transducer is an energy converter that converts electrical signals into mechanical signals, and the matching circuit is composed of inductors, capacitors and other components, which can improve the working performance of the transducer. Therefore, the matching circuit has an important influence on the working performance of the welding system.

[0003] Because there are series and parallel matching methods in the ultrasonic welding system, different matching methods produce different experimental results. In the experiment process, the matching circuit may need to be adjusted for various reasons, but in the current ultrasonic system, the matching circuit has the disadvantages of inconvenient circuit modification and difficult replacement of matching inductors. Therefore, there is an urgent need for an ultrasonic welding experiment system that can conveniently and efficiently replace the matching circuit. SUMMARY

[0004] The main purpose of the present application is to overcome the above-mentioned defects in the prior art, and to provide an adjustable ultrasonic welding matching experiment system that can quickly change the matching method, solve the problem of difficult replacement of matching components, and achieve the purpose of improving efficiency and saving time cost.

[0005] The present application adopts the following technical solutions:

[0006] The application discloses an adjustable ultrasonic welding matching experiment system, which comprises a signal generator, a matching circuit board and a transducer, wherein the signal generator is connected with the matching circuit board to input a driving signal, the matching circuit board is connected with the transducer to drive the transducer to work after the driving signal is matched and optimized, and the matching circuit board is characterized in that the matching circuit board comprises a first matching module, a second matching module, a third matching module, a fourth matching module, a fifth matching module, a switching switch and a matching inductor; the first matching module, the switching switch and the second matching circuit are sequentially connected between a signal input end and a signal output end of the matching circuit board; the third capacitor and the fourth capacitor are connected between another signal input port and another signal output port of the matching circuit board; one end of the matching inductor is connected with the signal input port of the matching circuit board, and the other end is connected with the switching switch or the fourth capacitor module; and the fifth matching module is connected with the second matching module and the fourth matching module.

[0007] The first matching module comprises two press-type terminal groups and at least one first capacitor or at least one first resistor, each of the press-type terminal groups is provided with a plurality of parallel press-type terminals, and the first capacitor or the first resistor is connected between two press-type terminals of the two press-type terminal groups.

[0008] The second matching module comprises two press-type terminal groups and at least one second capacitor or at least one second resistor, each of the press-type terminal groups is provided with a plurality of parallel press-type terminals, and the second capacitor or the second resistor is connected between two press-type terminals of the two press-type terminal groups.

[0009] The third matching module comprises two press-type terminal groups and at least one third capacitor or at least one third resistor, each of the press-type terminal groups is provided with a plurality of parallel press-type terminals, and the third capacitor or the third resistor is connected between two press-type terminals of the two press-type terminal groups.

[0010] The fourth matching module comprises two press-type terminal groups and at least one fourth capacitor or at least one fourth resistor, each of the press-type terminal groups is provided with a plurality of parallel press-type terminals, and the fourth capacitor or the fourth resistor is connected between two press-type terminals of the two press-type terminal groups.

[0011] The first terminal is connected with the switching switch, the second terminal is connected with the fourth matching module, and the other end of the matching inductor is connected with the first terminal or the second terminal through a bolt terminal port.

[0012] Still include voltage sampling resistance and series resistance, one end of the voltage sampling resistance is connected with the fourth matching module, the other end is connected with one end of the series resistance, the other end of the series resistance is connected with the switching switch.

[0013] The other end of the voltage sampling resistance and both ends of the series resistance are connected with measuring points respectively.

[0014] Still include current sampling resistance, one end of the current sampling resistance is connected with the fourth matching module, the other end is connected with the signal output port of the matching circuit board.

[0015] Both ends of the current sampling resistance are connected with measuring points respectively.

[0016] From the above description of the present application, compared with the prior art, the present application has the following beneficial effects:

[0017] The system of the present application includes signal generator, matching circuit board and transducer. The signal generator is used to generate the driving signal for the transducer, the matching circuit board is used as the bridge between the signal generator and the transducer, and it realizes various matching forms, and also plays the role of matching optimization signal and improving work efficiency, and the transducer is the power device for generating working vibration, and it converts the matched electrical signal into the mechanical vibration required for welding processing. The present application solves the problem of difficult replacement of matching components, and achieves the purpose of improving efficiency and saving time cost

[0018] In the system of the present application, the matching components used on the matching circuit board no longer need to be welded into the circuit board, which avoids the problem of difficult disassembly and replacement caused by oxidation of component pins or solder. At the same time, the matching circuit structure used in the system can adapt to different experimental requirements by changing inductance and capacitance according to different requirements, which provides convenience for experimenters. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the system composition diagram of the present application;

[0020] Fig. 2 It is the matching circuit board structure diagram of the present application;

[0021] Fig. 3 It is the principle diagram of the system of the present application;

[0022] Among them:

[0023] 10, signal generator, 11, signal line, 20, matching circuit board, 20a, bolt terminal, 20b, press terminal, 21, first matching module, 22, second matching module, 23, third matching module, 24, fourth matching module, 25, fifth matching module, 27, matching inductor, 28, signal input port, 29, signal output port, 30, transducer, 31, signal input port, 40, oscilloscope, 50, voltage sampling resistor, 51, series resistor, 60, current sampling resistor, 61, measuring point.

[0024] The application will be further described below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] In the application, the terms "first", "second", "third" and the like are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the directions or positions indicated by "up", "down", "left", "right", "front" and "back" are based on the directions or positions shown in the drawings, and are only used to facilitate the description of the application, and cannot be understood as indicating or implying that the devices must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the application. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship between the associated objects is described as "and / or", which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0028] Reference is made to Figs. 1 to 3The adjustable ultrasonic welding matching experiment system comprises a signal generator 10, a matching circuit board 20, a transducer 30 and the like. The signal generator 10 is connected with the matching circuit board 20 to input a driving signal, that is, the signal generator 10 is used to generate a driving signal for operating the transducer 30, and the signal generator 10 is directly connected with the matching circuit board 20 through a signal line 11. The matching circuit board 20 is connected with a signal input port 31 of the transducer 30 to perform matching and optimization processing on the driving signal, and then drives the transducer 30 to operate. That is, the matching circuit board 20 serves as a bridge between the signal generator 10 and the transducer 30, and realizes various matching forms, and also plays a role of matching and optimizing the signal and improving the working efficiency. The transducer 30 is a power device for generating working vibration, and is used to convert the matched electrical signal into mechanical vibration required for welding processing.

[0029] The matching circuit board 20 is provided with a matching circuit, which comprises a first matching module 21, a second matching module 22, a third matching module 23, a fourth matching module 24, a fifth matching module 25, a switching switch K0 and a matching inductor 27 and the like. The matching circuit board 20 can comprise two signal input ports 28 and two signal output ports 29, the two signal input ports 28 are connected with the signal generator 10, and the two signal output ports 29 are connected with the transducer. The first matching module 21, the switching switch K0 and the second matching circuit are sequentially connected between one signal input port 28 and one signal output port 29 of the matching circuit board 20. The third capacitor and the fourth capacitor are connected in series between the other signal input and the other signal output of the matching circuit board 20. One end of the matching inductor 27 is connected with one signal input end of the matching circuit board 20, and the other end is connected with the switching switch K0 or the fourth capacitor module. The fifth matching module 25 is connected with the second matching module 22 and the fourth matching module 22.

[0030] In the present application, the first matching module 21 comprises two press-type terminal groups and at least one first capacitor or at least one first resistor, each press-type terminal group is provided with a plurality of parallel press-type terminals 20b, and the first capacitor or the first resistor is connected between the two press-type terminals 20b of the two press-type terminal groups. Then, the two ends of the first capacitor or the first resistor can be connected to the matching circuit through the press-type terminals 20b connecting the two press-type terminal groups, that is, after inserting the pins of the first capacitor or the first resistor into the press-type terminals 20b, the connection can be completed by pressing the switch above the press-type terminals 20b.

[0031] The second matching module 22 comprises two sets of press-type terminals and at least one second capacitor or at least one second resistor, each set of press-type terminals is provided with a plurality of press-type terminals 20b connected in parallel, and the second capacitor or the second resistor is connected between the two press-type terminals 20b of the two sets of press-type terminals. Then, the two ends of the second capacitor or the second resistor can be connected to the matching circuit through the press-type terminals 20b of the two sets of press-type terminals, that is, after the pins of the second capacitor or the second resistor are inserted into the press-type terminals 20b, the connection can be completed by pressing the switches above the press-type terminals 20b.

[0032] The third matching module 23 comprises two sets of press-type terminals and at least one third capacitor or at least one third resistor, each set of press-type terminals is provided with a plurality of press-type terminals 20b connected in parallel, and the third capacitor or the third resistor is connected between the two press-type terminals 20b of the two sets of press-type terminals. Then, the two ends of the third capacitor or the third resistor can be connected to the matching circuit through the press-type terminals 20b of the two sets of press-type terminals, that is, after the pins of the third capacitor or the third resistor are inserted into the press-type terminals 20b, the connection can be completed by pressing the switches above the press-type terminals 20b.

[0033] The fourth matching module 24 comprises two sets of press-type terminals and at least one fourth capacitor or at least one fourth resistor, each set of press-type terminals is provided with a plurality of press-type terminals 20b connected in parallel, and the fourth capacitor or the fourth resistor is connected between the two press-type terminals 20b of the two sets of press-type terminals. Then, the two ends of the fourth capacitor or the fourth resistor can be connected to the matching circuit through the press-type terminals 20b of the two sets of press-type terminals, that is, after the pins of the fourth capacitor or the fourth resistor are inserted into the press-type terminals 20b, the connection can be completed by pressing the switches above the press-type terminals 20b.

[0034] The fifth matching module 25 comprises two sets of press-type terminals and at least one fifth capacitor or at least one fifth resistor, each set of press-type terminals is provided with a plurality of press-type terminals 20b connected in series, and the fifth capacitor or the fifth resistor is connected between the two press-type terminals 20b of the two sets of press-type terminals. Then, the two ends of the fifth capacitor or the fifth resistor can be connected to the matching circuit through the press-type terminals 20b of the two sets of press-type terminals, that is, after the pins of the fifth capacitor or the fifth resistor are inserted into the press-type terminals 20b, the connection can be completed by pressing the switches above the press-type terminals 20b.

[0035] In the experiment, capacitors or resistors can be connected on the first matching module 21, the second matching module 22, the third matching module 23, the fourth matching module 24 and the fifth matching module 25 according to the needs, and when a certain matching module does not need a capacitor, a wire can be used instead of connection, which will not affect the normal use of the matching circuit.

[0036] Further, the application also includes a first terminal K1 and a second terminal K2, the first terminal K1 is connected with the switch K0, the second terminal K2 is connected with one end of the fourth matching module 24, the other end of the matching inductor 27 adopts a bolt type terminal to be connected with the first terminal K1 or the second terminal K2. The first terminal K1 and the second terminal K2 adopt the bolt type terminal 20a. The matching inductor 27 of the application adopts the bolt type terminal, can quickly complete installation or replacement, and is used together with the switch K0 on the matching circuit board 20, can achieve the purpose of changing the matching circuit mode simply and efficiently.

[0037] Specifically, when the matching inductor 27 is connected with the first terminal K1, and the switch K0 is disconnected, at this time, the matching mode is series matching; when the matching inductor 27 is connected with the second terminal K2, and the switch K0 is closed, then the matching mode will be changed to parallel matching.

[0038] In the application, the voltage sampling resistor 50 and the series resistor 51 are also included, one end of the voltage sampling resistor 50 is connected with the other end of the fourth matching module 24, the other end is connected with one end of the series resistor 51, the other end of the series resistor 51 is connected with the switch 26. The other end of the voltage sampling resistor 50 and the two ends of the series resistor 51 are respectively connected with the measuring point 61, the measuring point 61 is in the form of a small plug pin. The signal measurement and observation are carried out by connecting the measuring point 61 with the oscilloscope 40. The other end of the fourth matching module 24 is connected with the fifth matching module 24.

[0039] The current sampling resistor 60 is also included, one end of the current sampling resistor 60 is connected with the other end of the fourth matching module 24, the other end is connected with the signal output port 29 of the matching circuit board 20. The two ends of the current sampling resistor 60 are respectively connected with the measuring point 61, the measuring point 61 is in the form of a small plug pin. The signal measurement and observation are carried out by connecting the measuring point 61 with the oscilloscope 40.

[0040] In the experiment, the current and voltage of the transducer 30 are measured to effectively judge the working state of the welding system, but there are inconvenient and unsafe problems in directly measuring the working voltage and working current of the transducer 30. Therefore, the voltage sampling resistor 50 and the current sampling resistor 60 are arranged on the matching circuit. The voltage sampling resistor 50 is connected in series with another resistor and is connected in parallel on both sides of the transducer 30, the voltage sampling resistor 50 is relatively small compared with the series resistor 51, so that the voltage on the sampling resistor is very small, which can be used to observe the working voltage of the transducer 30. In order to facilitate measurement and representation of current, the current sampling resistor 60 is in series with the transducer 30, and the working current of the transducer 30 is represented by the voltage on the current sampling resistor 60.

[0041] In practical application, the fixed mode of the voltage sampling resistor 50 and the current sampling resistor 60 adopts a terminal connection which is easier to replace the resistor, so as to meet the requirements of the sampling resistor under different working voltages and sampling work.

[0042] In the system, the matching components on the matching circuit board 20 do not need to be welded into the circuit board, thereby avoiding the problem that the pins or soldering tin of the components are difficult to disassemble and replace due to oxidation and the like. Meanwhile, the matching circuit structure adopted by the system can adapt to different experimental requirements by changing inductors and capacitors according to different requirements, thereby providing convenience for experimenters.

[0043] The above is only a specific embodiment of the present application, but the design concept of the present application is not limited thereto, and any non-substantial modification of the present application using the concept shall be deemed as an act of infringing the protection scope of the present application.

Claims

1. An adjustable ultrasonic welding matching experiment system, comprising a signal generator, a matching circuit board and a transducer, the signal generator is connected with the matching circuit board to input a driving signal, the matching circuit board is connected with the transducer to drive the transducer to work after matching optimization processing of the driving signal; characterized in that: The matching circuit board comprises a first matching module, a second matching module, a third matching module, a fourth matching module, a fifth matching module, a switching switch and a matching inductor; the first matching module, the switching switch and the second matching module are sequentially connected in series between a signal input end and a signal output end of the matching circuit board, a third capacitor and a fourth capacitor are connected in series between another signal input port and another signal output port of the matching circuit board; one end of the matching inductor is connected with the signal input port of the matching circuit board, and the other end is connected with the switching switch or the fourth capacitor; the fifth matching module is connected with the second matching module and the fourth matching module; ​ The first matching module comprises two press-type terminal groups and at least one first capacitor or at least one first resistor, each press-type terminal group is provided with a plurality of parallel press-type terminals, and the first capacitor or the first resistor is connected between two press-type terminals of two press-type terminal groups. The second matching module comprises two press-type terminal groups and at least one second capacitor or at least one second resistor, each press-type terminal group is provided with a plurality of parallel press-type terminals, and the second capacitor or the second resistor is connected between two press-type terminals of two press-type terminal groups. The third matching module comprises two press-type terminal groups and at least one third capacitor or at least one third resistor, each press-type terminal group is provided with a plurality of parallel press-type terminals, and the third capacitor or the third resistor is connected between two press-type terminals of two press-type terminal groups.

2. An adjustable ultrasonic welding matching laboratory system as defined in claim 1, wherein: The fourth matching module comprises two press-type terminal groups and at least one fourth capacitor or at least one fourth resistor, each press-type terminal group is provided with a plurality of parallel press-type terminals, and the fourth capacitor or the fourth resistor is connected between two press-type terminals of two press-type terminal groups.

3. An adjustable ultrasonic welding matching laboratory system as defined in claim 1, wherein: Further comprising a first terminal and a second terminal, the first terminal is connected with the switching switch, the second terminal is connected with the fourth matching module, and the other end of the matching inductor adopts a bolt-type terminal port to be connected with the first terminal or the second terminal.

4. An adjustable ultrasonic welding matching laboratory system as defined in claim 1, wherein: Further comprising a voltage sampling resistor and a series resistor, one end of the voltage sampling resistor is connected with the fourth matching module, the other end of the voltage sampling resistor is connected with one end of the series resistor, and the other end of the series resistor is connected with the switching switch.

5. An adjustable ultrasonic welding matching laboratory system as defined in claim 4, wherein: The other end of the voltage sampling resistor and the two ends of the series resistor are respectively connected with measuring points.

6. An adjustable ultrasonic welding matching laboratory system as defined in claim 1, wherein: Further comprising a current sampling resistor, one end of the current sampling resistor is connected with the fourth matching module, and the other end of the current sampling resistor is connected with the signal output port of the matching circuit board.

7. An adjustable ultrasonic welding matching laboratory system as defined in claim 6, wherein: The two ends of the current sampling resistor are respectively connected with measuring points.

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