An ultrasonic horn piercing and welding tool

Abstract

The utility model discloses an ultrasonic unit puncture welding tool, including ultrasonic generator and cylinder, the ultrasonic generator is fixed on aluminium box, the bottom surface of aluminium box is installed with guide rail, the piston rod of cylinder is connected with aluminium box, the cylinder pushes aluminium box and does reciprocating motion on guide rail, the guide rail is installed on the shell, the ultrasonic generator and female welding head are linked, two sub welding heads are set up on female welding head and extend, two sub welding heads are arranged parallel to each other, and every sub welding head is in flat shape to penetrate material and weld. The ultrasonic unit puncture welding tool provided by the utility model adopts ultrasonic generator to cooperate with sub female welding head, and high frequency vibration energy is applied to the surface of the material to be welded. Not only the welding speed is fast, and the welding strength is high, but also the welding depth can be accurately controlled, the product pass rate is improved, energy saving and environmental protection, and the adaptability is strong.

Description

Technical Field

[0001] This utility model relates to a plastic welding tool, and more particularly to an ultrasonic unit piercing welding tool. Background Technology

[0002] In industries such as automotive, medical, and packaging, it is often necessary to weld two plastic parts of a certain thickness together. For some material combinations or structures that are difficult to weld using other methods, piercing welding provides an effective joining method, such as joining plastic parts in automotive exterior trim. In piercing welding, the welding head pierces the material under vibration and pressure, achieving a connection between the materials.

[0003] Penetration welding can directly penetrate materials for welding, offering significant advantages when joining multi-layered materials or requiring welding on one side with high requirements for the appearance of the other side. While the welded side may show signs of damage, the damage is almost invisible on the other side if the thickness is sufficient. However, ensuring precise control of the weld depth to improve product yield presents certain technical challenges. Furthermore, the welding speed and strength of penetration welding still need further improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an ultrasonic unit piercing welding tool that not only has fast welding speed and high welding strength, but also allows for precise control of welding depth, thereby improving product qualification rate; it is also energy-saving, environmentally friendly, and highly adaptable.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide an ultrasonic unit piercing welding tool, including an ultrasonic generator and a cylinder. The ultrasonic generator is fixed on an aluminum box, and a guide rail is installed on the bottom surface of the aluminum box. The piston rod of the cylinder is connected to the aluminum box, and the cylinder pushes the aluminum box to reciprocate on the guide rail. The guide rail is installed on the outer shell. The ultrasonic generator is connected to a female welding head, and two female welding heads are extended from the female welding head. The two female welding heads are arranged parallel to each other, and each female welding head is flat to penetrate the material for welding.

[0006] Furthermore, the ultrasonic generator is connected to the female welding head via an amplitude transformer, and the high-frequency vibration signal generated by the ultrasonic generator is amplified by the amplitude transformer and then transmitted to the female welding head.

[0007] Furthermore, the length of the amplitude transformer is 1-10cm.

[0008] Furthermore, stepped surfaces are formed on both sides of the end of the sub-welding head, and needle-shaped protrusions are formed on the front side of the end of the sub-welding head.

[0009] Furthermore, the length of the sub-welding head is 3-30cm.

[0010] Compared with the prior art, the present invention has the following advantages: The ultrasonic unit piercing welding tool provided by the present invention uses an ultrasonic generator in conjunction with a female welding head to apply high-frequency vibration energy to the surface of the material to be welded; it not only has a fast welding speed and high welding strength, but also allows for precise control of the welding depth, thereby improving the product qualification rate; it is energy-saving, environmentally friendly, and highly adaptable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the front structure of the ultrasonic unit piercing welding tool of this utility model;

[0012] Figure 2 This is a schematic diagram of the back structure of the ultrasonic unit piercing welding tool of this utility model.

[0013] The following are marked in the diagram: 1. Cylinder; 2. Aluminum box; 3. Ultrasonic generator; 4. Female welding head; 5. Female welding head; 6. Guide rail; 7. Amplitude rod; 8. Stepped surface; 9. Needle-shaped protrusion; 10. Outer shell. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the front structure of the ultrasonic unit piercing welding tool of this utility model; Figure 2 This is a schematic diagram of the back structure of the ultrasonic unit piercing welding tool of this utility model.

[0016] Please see Figure 1 and Figure 2 The ultrasonic unit piercing welding tool provided by this utility model includes an ultrasonic generator 3 and a cylinder 1. The ultrasonic generator 3 is fixed on an aluminum box 2. A guide rail 6 is installed on the bottom surface of the aluminum box 2. The piston rod of the cylinder 1 is connected to the aluminum box 2. The cylinder 1 pushes the aluminum box 2 to reciprocate on the guide rail 6. The guide rail 6 is installed on the outer shell 10. The ultrasonic generator 3 is connected to a female welding head 4. Two female welding heads 5 are extended from the female welding head 4. The two female welding heads 5 are arranged parallel to each other, and each female welding head 5 is flat to penetrate the material for welding.

[0017] The ultrasonic unit piercing welding tool provided by this utility model generates a high-frequency vibration signal through an ultrasonic generator 3. The transducer converts this signal into mechanical vibration, which is then amplified by an amplitude transformer 7 and transmitted to the welding head. The welding head applies the high-frequency vibration energy to the surface of the material to be welded, causing the material molecules to generate high-speed friction, instantly generating heat and causing the material to melt locally. Under pressure, the molten material fuses together and, upon cooling, forms a strong welded joint.

[0018] The ultrasonic unit piercing welding tool provided by this utility model includes an ultrasonic generator 3 connected to a female welding head 4 via an amplitude transformer 7. The high-frequency vibration signal generated by the ultrasonic generator 3 is amplified by the amplitude transformer 7 and then transmitted to the female welding head 4. Preferably, the length of the amplitude transformer 7 is 1-10 cm.

[0019] The ultrasonic unit piercing welding tool provided by this utility model has stepped surfaces 8 formed on both sides of the end of the sub-welding head 5, and several needle-like protrusions 9 formed on the front of the end of the sub-welding head 5 to avoid adhesion to the molten material and quickly form a strong weld joint. Preferably, the length of the sub-welding head 5 is 3-30cm, which can be adjusted according to the required depth of material penetration.

[0020] In summary, the ultrasonic unit piercing welding tool provided by this utility model uses an ultrasonic generator 3 in conjunction with a female and male welding head to apply high-frequency vibration energy to the surface of the material to be welded; it not only has a fast welding speed and high welding strength, but also the female welding head 5 can extend into the material as needed, and the welding depth can be precisely controlled, thereby improving the product qualification rate; it is energy-saving, environmentally friendly, and highly adaptable.

[0021] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. An ultrasonic unit piercing welding tool, characterized in that, The device includes an ultrasonic generator (3) and a cylinder (1). The ultrasonic generator (3) is fixed on an aluminum box (2). A guide rail (6) is installed on the bottom surface of the aluminum box (2). The piston rod of the cylinder (1) is connected to the aluminum box (2). The cylinder (1) pushes the aluminum box (2) to reciprocate on the guide rail (6). The guide rail (6) is installed on the outer shell (10). The ultrasonic generator (3) is connected to a female welding head (4). Two female welding heads (5) are extended from the female welding head (4). The two female welding heads (5) are arranged parallel to each other, and each female welding head (5) is flat to penetrate the material for welding.

2. The ultrasonic unit piercing welding tool as described in claim 1, characterized in that, The ultrasonic generator (3) is connected to the female welding head (4) through the amplitude transformer (7). The high-frequency vibration signal generated by the ultrasonic generator (3) is amplified by the amplitude transformer (7) and then transmitted to the female welding head (4).

3. The ultrasonic unit piercing welding tool as described in claim 2, characterized in that, The length of the amplitude rod (7) is 1-10cm.

4. The ultrasonic unit piercing welding tool as described in claim 1, characterized in that, The sub-welding head (5) has stepped surfaces (8) formed on both sides of its end, and needle-shaped protrusions (9) formed on the front side of its end.

5. The ultrasonic unit piercing welding tool as described in claim 1, characterized in that, The length of the sub-welding head (5) is 3-30cm.

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