Double crystal stack welding machine

Abstract

The present invention provides a double crystal stack welder, which comprises: a fixed part; a plurality of first piezoelectric ceramic sheets, which are stacked together; a metal alloy fixing block, which can generate double thrust resonance vibration for the plurality of first piezoelectric ceramic sheets and the plurality of second piezoelectric ceramic sheets at both ends of the metal alloy fixing block; a plurality of second piezoelectric ceramic sheets, which are stacked together; a cover body, which is arranged on the plurality of second piezoelectric ceramic sheets; a fixing part, which is used to penetrate the cover body, the plurality of second piezoelectric ceramic sheets, the metal alloy fixing block, the plurality of first piezoelectric ceramic sheets, the fixed part and the first hole part to combine; by means of alternating current passing through the plurality of first piezoelectric ceramic sheets and the second piezoelectric ceramic sheets and by means of the metal alloy fixing block, the device can achieve double thrust resonance vibration, thereby achieving the effect of generating ultrasonic frequency by double stacking.

Description

Technical Field

[0001] The invention relates to a welder, in particular to a double crystal stack welder. Background Art

[0002] Ultrasonic welding is used for plastic or metal welding. It uses ultrasonic vibrations generated by a transducer (vibrator) to transmit ultrasonic vibration energy to the position and object to be welded. Due to the acoustic impedance, the position and object to be welded will generate local high temperature, and the welding is completed under pressure and high temperature.

[0003] Although the general transducer (vibrator) can generate the required ultrasonic frequency to achieve the welding effect, due to the limitation of the volume of the transducer (vibrator) structure, directly stacking multiple piezoelectric ceramic sheets cannot provide ultrasonic frequencies of equal magnification, thus causing a bottleneck in the design of the welder. Taiwan Patent Gazette M322293 also has the above-mentioned defects.

[0004] Therefore, how to eliminate the above-mentioned deficiencies is the technical difficulty that the inventor of this case wants to solve. Summary of the invention

[0005] In view of the above problems of the existing welding machine, an object of the present invention is to provide a double crystal stack welding machine.

[0006] In order to achieve the above objectives, the present invention provides a double crystal stack welding device, characterized in that it comprises:

[0007] A fixed member, the fixed member is provided with a first hole portion;

[0008] A plurality of first piezoelectric ceramic sheets, which are stacked one on another, are arranged on one side of the fixed member, and are provided with holes;

[0009] a metal alloy fixing block, the metal alloy fixing block is arranged on one side of the plurality of first piezoelectric ceramic sheets, and the metal alloy fixing block is provided with a hole;

[0010] A plurality of second piezoelectric ceramic sheets, which are stacked one on another, are arranged on one side of the metal alloy fixing block, and are provided with a hole;

[0011] A cover body, which is arranged on one side of the plurality of second piezoelectric ceramic sheets and has a hole;

[0012] A fixing member, the fixing member passes through the cover body, a plurality of second piezoelectric ceramic sheets, a metal alloy fixing block, a plurality of holes of the first piezoelectric ceramic sheets and a first hole of the fixed part, the front end of the fixing member is combined with the first hole of the fixed part, and the rear end of the fixing member is provided with a second hole;

[0013] The metal alloy fixing block is located between the first piezoelectric ceramic sheets and the second piezoelectric ceramic sheets, the first piezoelectric ceramic sheets are located between the fixed component and the metal alloy fixing block, and the second piezoelectric ceramic sheets are located between the metal alloy fixing block and the cover.

[0014] The described double crystal stack welder, wherein: the metal alloy fixing block is manganese alloy steel or nickel alloy steel or chromium alloy steel or nickel-chromium alloy steel or nickel-chromium-molybdenum alloy steel or chromium-molybdenum alloy steel.

[0015] By means of the fixing member being penetrated, the cover body, the plurality of second piezoelectric ceramic sheets, the metal alloy fixing block, the plurality of first piezoelectric ceramic sheets, and the fixed member are arranged and fixed. Therefore, when the fixing member is combined with the fixed member, the plurality of first piezoelectric ceramic sheets can be squeezed by the metal alloy fixing block to generate a piezoelectric effect. The piezoelectric effect generated by the plurality of first piezoelectric ceramic sheets is then transmitted to the plurality of second piezoelectric ceramic sheets through the metal alloy fixing block, thereby generating a greater resonance effect. Therefore, when alternating current (not shown) passes through the plurality of first piezoelectric ceramic sheets and the plurality of second piezoelectric ceramic sheets and the metal alloy fixing block is arranged between the plurality of first piezoelectric ceramic sheets and the plurality of second piezoelectric ceramic sheets, the device can achieve double thrust resonance vibration, thereby achieving the effect of generating ultrasonic frequency by double stacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the decomposition of the present invention.

[0017] Figure 2 It is a schematic diagram of the combination of the present invention.

[0018] Figure 3 1 is a schematic diagram of the present invention in combination with an action diagram (I).

[0019] Figure 4 2 is a schematic diagram of the combined action of the present invention.

[0020] Explanation of the reference numerals: 1 fixed member; 11 first hole portion; 2 first piezoelectric ceramic sheet; 21 hole portion; 3 metal alloy fixing block; 31 hole portion; 4 second piezoelectric ceramic sheet; 41 hole portion; 5 cover body; 51 hole portion; 6 fixing member; 61 front end; 62 rear end; 63 second hole portion. DETAILED DESCRIPTION

[0021] In order to make it easier to understand the other features and advantages of the present invention and the effects achieved by the present invention, the present invention is described in detail with reference to the accompanying drawings as follows:

[0022] See also Figure 1 , Figure 2 , the double crystal stack welding device comprises:

[0023] A fixed member 1, the fixed member 1 is provided with a first hole portion 11;

[0024] A plurality of first piezoelectric ceramic sheets 2, which are stacked one on another, are arranged on one side of the fixed member 1, and are provided with holes 21;

[0025] A metal alloy fixing block 3 is provided on the plurality of first piezoelectric ceramic sheets 2. The metal alloy fixing block 3 is provided with a hole 31. The metal alloy fixing block 3 is selected from a metal alloy having a Young's modulus in the range of 183-235 GPa (1 GPa = 1×10 9 Pa, where Pa is the unit of pressure: Pascal), the metal alloy fixing block 3, because of its good material hardening performance and high toughness, can make the first piezoelectric ceramic pieces 2 and the second piezoelectric ceramic pieces 4 at both ends of the metal alloy fixing block 3 generate double thrust resonance vibration;

[0026] A plurality of second piezoelectric ceramic sheets 4, which are stacked one on another and arranged on one side of the metal alloy fixing block 3, and a hole 41 is provided on the second piezoelectric ceramic sheet 4;

[0027] a cover 5, the cover 5 is disposed on one side of the plurality of second piezoelectric ceramic sheets 4, and the cover 5 is provided with a hole 51;

[0028] The metal alloy fixing block 3 is located between the first piezoelectric ceramic sheets 2 and the second piezoelectric ceramic sheets 4, the first piezoelectric ceramic sheets 2 are located between the fixed component 1 and the metal alloy fixing block 3, and the second piezoelectric ceramic sheets 4 are located between the metal alloy fixing block 3 and the cover 5;

[0029] Please continue reading Figure 3 , Figure 4 A fixing member 6 is used to penetrate the cover 5, the plurality of second piezoelectric ceramic sheets 4, the metal alloy fixing block 3, the holes 21, 31, 41, 51 of the plurality of first piezoelectric ceramic sheets 2 and the first hole 11 of the fixed part 1. The front end 61 of the fixing member 6 is screwed with the first hole 11 of the fixed part 1, and the rear end 62 of the fixing member 6 is provided with a second hole 63;

[0030] By means of the fixing member 6 being penetrated, the cover body 5, the plurality of second piezoelectric ceramic sheets 4, the metal alloy fixing block 3, the plurality of first piezoelectric ceramic sheets 2, and the fixed member 1 are arranged and fixed. Therefore, when the fixing member 6 is combined with the fixed member 1, the plurality of first piezoelectric ceramic sheets 2 can be squeezed by the metal alloy fixing block 3 to generate a piezoelectric effect. The piezoelectric effect generated by the plurality of first piezoelectric ceramic sheets 2 is then transmitted to the plurality of second piezoelectric ceramic sheets 4 through the metal alloy fixing block 3, thereby generating a greater resonance effect. Therefore, when alternating current (not shown) passes through the plurality of first piezoelectric ceramic sheets 2 and the plurality of second piezoelectric ceramic sheets 4 and the metal alloy fixing block 3 is arranged between the plurality of first piezoelectric ceramic sheets 2 and the plurality of second piezoelectric ceramic sheets 4, the device can achieve double thrust resonance vibration, thereby achieving the effect of generating ultrasonic frequency by double stacking.

[0031] The metal alloy fixing block 3 can be manganese alloy steel, nickel alloy steel, chromium alloy steel, nickel-chromium alloy steel, nickel-chromium-molybdenum alloy steel or chromium-molybdenum alloy steel.

[0032] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the claims, but all will fall within the scope of protection of the present invention.

Claims

1. A double crystal stack welding device, characterized in that: Include: A fixed member, the fixed member is provided with a first hole portion; A plurality of first piezoelectric ceramic sheets, which are stacked one on another, are arranged on one side of the fixed member, and are provided with holes; a metal alloy fixing block, the metal alloy fixing block is arranged on one side of the plurality of first piezoelectric ceramic sheets, and the metal alloy fixing block is provided with a hole; A plurality of second piezoelectric ceramic sheets, which are stacked one on another, are arranged on one side of the metal alloy fixing block, and are provided with a hole; A cover body, which is arranged on one side of the plurality of second piezoelectric ceramic sheets and has a hole; A fixing member, the fixing member passes through the cover body, a plurality of second piezoelectric ceramic sheets, a metal alloy fixing block, a plurality of holes of the first piezoelectric ceramic sheets and a first hole of the fixed part, the front end of the fixing member is combined with the first hole of the fixed part, and the rear end of the fixing member is provided with a second hole; The metal alloy fixing block is located between the first piezoelectric ceramic sheets and the second piezoelectric ceramic sheets, the first piezoelectric ceramic sheets are located between the fixed component and the metal alloy fixing block, and the second piezoelectric ceramic sheets are located between the metal alloy fixing block and the cover.

2. The double crystal stack welding device according to claim 1, characterized in that: The metal alloy fixing block is manganese alloy steel or nickel alloy steel or chromium alloy steel or nickel-chromium alloy steel or nickel-chromium-molybdenum alloy steel or chromium-molybdenum alloy steel.

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