Ultrasonic welding device

Abstract

The utility model provides an ultrasonic welding device, which belongs to the technical field of ultrasonic welding and comprises a transducer and an amplitude-change pole arranged at the lower end of the transducer, the lower end of the amplitude-change pole is provided with a quick disassembly and assembly mechanism, and the quick disassembly and assembly mechanism comprises a welding head movably inserted into the lower end of the amplitude-change pole. An annular uniform rectangular sliding opening is formed in the middle of the inner arc face of the amplitude-change pole, sliding locking heads are slidably connected into the rectangular sliding opening, an annular locking groove is formed in the upper end of the outer arc face of the welding head, the inner side ends of the sliding locking heads are matched with the annular locking groove, and a driving assembly used for driving the sliding locking heads to move synchronously is further arranged at the lower end of the amplitude-change pole. The lower ends of the inner side end heads of the sliding locking heads are obliquely arranged downwards from inside to outside. According to the utility model, one-button unlocking is realized through the quick dismounting and mounting mechanism, so that the time required for replacing the welding head is greatly shortened, the downtime is reduced, the welding head can be fixed only through one-time insertion, the operation flow of replacing the welding head is simplified, and the working efficiency is obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic welding, and in particular relates to an ultrasonic welding device. Background Art

[0002] Ultrasonic welding uses high-frequency vibration waves to transmit to the surfaces of two objects to be welded. Under pressure, the two surfaces of the objects rub against each other to form a fusion between the molecular layers.

[0003] In the existing ultrasonic welding device, the welding head is usually fixed to the amplitude transformer by means of a threaded connection during installation. Although the welding head can be replaced, there are still some problems in actual operation. The operation process is cumbersome and inconvenient during replacement, which prolongs the time required for replacement, resulting in reduced work efficiency. Utility Model Content

[0004] In view of this, the utility model provides an ultrasonic welding device, which can achieve one-touch unlocking through a quick disassembly and assembly mechanism, greatly shortening the time required for replacing the welding head and reducing downtime. The welding head can be fixed with just one plug, simplifying the operating process of replacing the welding head and significantly improving work efficiency.

[0005] In order to solve the above technical problems, the utility model provides an ultrasonic welding device, including a transducer and a variable amplitude rod arranged at the lower end of the transducer, the lower end of the variable amplitude rod is provided with a quick disassembly and assembly mechanism, the quick disassembly and assembly mechanism includes a welding head movably plugged into the lower end of the variable amplitude rod, a rectangular sliding mouth with a uniform annular shape is provided in the middle part of the inner arc surface of the variable amplitude rod, a sliding locking head is slidably connected in the rectangular sliding mouth, an annular locking groove is provided at the upper end of the outer arc surface of the welding head, the inner end head of the sliding locking head is matched with the annular locking groove, the lower end of the variable amplitude rod is also provided with a driving component for driving the sliding locking head to move synchronously, the lower end of the inner end head of the sliding locking head is tilted downward from the inside to the outside, and the transducer is electrically connected to an external ultrasonic generator.

[0006] A rectangular limiting steel plate is arranged in the middle of the top wall surface of the amplitude transformer, and a limiting groove matched with the rectangular limiting steel plate is arranged in the middle of the upper surface of the welding head.

[0007] The quick disassembly and assembly mechanism also includes rectangular grooves respectively arranged in the middle of the upper surface of the rectangular sliding mouth, and the inner ends of the upper surface of the sliding locking head are provided with rectangular plates, which are respectively located inside the vertically adjacent rectangular grooves, and springs are provided between the outer side surfaces of the rectangular plates and the relative inner wall surfaces of the rectangular grooves in which they are located.

[0008] The driving component includes a sliding shell sleeve slidably connected to the outer arc surface of the amplitude converter, the upper end of the inner arc surface of the sliding shell sleeve is provided with a lower pressure plate with uniform distribution in an annular manner, the outer end heads of the lower end outer side of the lower pressure plate are inclined upward from the inside to the outside, the outer end heads of the upper surface of the sliding locking head are provided with oblique grooves adapted to the lower pressure plate, and the outer arc surface of the amplitude converter is also provided with a reset component for resetting the sliding shell sleeve; the reset component includes an annular plate arranged on the outer arc surface of the amplitude converter near the highest end of the lower pressure plate, and two annular evenly distributed springs are provided between the upper end surface of the annular plate and the top wall surface of the sliding shell sleeve.

[0009] The rear ends of the left and right surfaces of the transducer are provided with mounting plates which are symmetrically distributed laterally.

[0010] The outer arc surface of the sliding shell is provided with anti-slip grooves.

[0011] The beneficial effects of the above technical solution of the utility model are as follows:

[0012] 1. When it is necessary to replace the welding head that is compatible with the required welding workpiece, the relevant operator pushes the sliding shell downward. When the sliding shell moves downward, it drives the lower pressure plate to overcome the elastic force of spring 2 and move synchronously downward along the outer arc surface of the amplitude transformer. During the downward movement of the lower pressure plate, the inclined surface at the lower end of the lower pressure plate will slide relative to the inclined surface in the oblique groove, thereby converting the downward force of the lower pressure plate into an outward pulling force, thereby prompting the sliding locking head and the rectangular plate to overcome the elastic force of spring 1 and move outward along the rectangular groove and the rectangular sliding mouth, and finally causing the sliding locking head to disengage from the annular locking groove, thereby unlocking the welding head, completing the convenient disassembly of the welding head, and realizing one-button unlocking, which greatly shortens the time required for welding head replacement and reduces downtime.

[0013] 2. After the disassembly is completed, the relevant operator releases the sliding shell sleeve. At this time, the spring two will use its own rebound force to push the sliding shell sleeve to automatically return to the initial position. At the same time, the spring one also uses its own rebound force to push the sliding locking head and the rectangular plate to reset, ensuring that the device can be smoothly reset for the next installation of the welding head. After that, when the welding head that matches the required welding workpiece is selected and inserted into the lower end of the amplitude converter, during the insertion process, the upper edge of the welding head will slide relative to the slope on the sliding locking head, thereby forcing the sliding locking head and the rectangular plate to overcome the elastic force of the spring one and move outward along the rectangular groove and the rectangular sliding mouth to avoid. When the welding head is fully engaged with the amplitude converter, the annular locking groove just moves to the opposite of the sliding locking head. At this time, the sliding locking head and the rectangular plate are immediately reset under the action of the rebound force of the spring one, and finally the sliding locking head is extended into the annular locking groove for locking. The welding head can be fixed with just one insertion, which simplifies the operation process of welding head replacement and significantly improves work efficiency.

[0014] 3. The rectangular limit steel plate cooperates with the limit groove to prevent the welding head from being misplaced, ensuring the position accuracy of the welding head during installation while ensuring the stability of the welding head during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of an ultrasonic welding device of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the quick disassembly and assembly mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0019] Explanation of the reference numerals: 100, transducer; 200, amplitude transformer; 300, welding head; 400, rectangular sliding mouth; 401, sliding locking head; 402, annular locking groove; 403, rectangular groove; 404, rectangular plate; 405, spring one; 500, sliding shell; 501, lower pressure plate; 502, oblique groove; 600, annular plate; 601, spring two; 700, rectangular limiting steel plate; 800, mounting plate; 900, anti-slip pattern. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] like Figure 1-4 As shown:

[0022] The present embodiment provides an ultrasonic welding device, including a transducer 100 and a horn 200 arranged at the lower end of the transducer 100, the lower end of the horn 200 is provided with a quick disassembly mechanism, the quick disassembly mechanism includes a welding head 300 movably plugged into the lower end of the horn 200, the middle part of the inner arc surface of the horn 200 is provided with a uniformly annular rectangular sliding mouth 400, the rectangular sliding mouth 400 is slidably connected with a sliding locking head 401, the upper end of the outer arc surface of the welding head 300 is provided with an annular locking groove 402, the inner end of the sliding locking head 401 is matched with the annular locking groove 402, the horn 200 The lower end of the sliding locking head 401 is also provided with a driving component for driving the sliding locking head 401 to move synchronously. The lower ends of the inner ends of the sliding locking head 401 are tilted downward from the inside to the outside, and the transducer 100 is electrically connected to the external ultrasonic generator; the quick disassembly and assembly mechanism also includes rectangular grooves 403 respectively arranged in the middle of the upper surface of the rectangular sliding mouth 400, and the inner ends of the upper surface of the sliding locking head 401 are provided with rectangular plates 404, which are respectively located in the vertically adjacent rectangular grooves 403, and a spring 405 is provided between the outer side surface of the rectangular plate 404 and the relative inner wall surface of the rectangular groove 403 in which it is located.

[0023] like Figure 1-4 As shown, the driving component includes a sliding shell 500 slidably connected to the outer arc surface of the amplitude converter 200, the upper end of the inner arc surface of the sliding shell 500 is provided with a lower pressure plate 501 evenly distributed in an annular manner, the outer end heads of the lower end outer side of the lower pressure plate 501 are tilted upward from the inside to the outside, the outer end heads of the upper surface of the sliding locking head 401 are provided with an oblique groove 502 adapted to the lower pressure plate 501, and the outer arc surface of the amplitude converter 200 is also provided with a reset component for resetting the sliding shell 500; the reset component includes an annular plate 600 arranged on the outer arc surface of the amplitude converter 200 near the highest end of the lower pressure plate 501, and a spring 601 evenly distributed in an annular manner is provided between the upper end surface of the annular plate 600 and the top wall surface of the sliding shell 500.

[0024] like Figure 2-4 As shown, a rectangular limiting steel plate 700 is provided in the middle of the top wall surface of the horn 200 , and a limiting groove matched with the rectangular limiting steel plate 700 is provided in the middle of the upper surface of the welding head 300 .

[0025] like Figure 1-3 As shown, the rear ends of the left and right surfaces of the transducer 100 are provided with mounting plates 800 which are symmetrically distributed laterally.

[0026] The working principle of an ultrasonic welding device provided by the utility model is as follows: first, the relevant operator fixes the transducer 100 and its auxiliary mechanism to the welding site of ultrasonic welding through the mounting plate 800. When it is necessary to replace the welding head 300 that is compatible with the required welding workpiece, the relevant operator pushes the sliding shell 500 downward. When the sliding shell 500 moves downward, it drives the lower pressure plate 501 to overcome the elastic force of the spring 2 601 and move synchronously downward along the outer arc surface of the amplitude transformer 200. During the downward movement of the lower pressure plate 501, the inclined surface at the lower end of the lower pressure plate 501 will slide relative to the inclined surface in the oblique groove 502, thereby converting the downward force of the lower pressure plate 501 into an outward pulling force, thereby promoting The sliding locking head 401 and the rectangular plate 404 overcome the elastic force of the spring 1 405 and move outward along the rectangular groove 403 and the rectangular sliding opening 400, and finally the sliding locking head 401 is separated from the annular locking groove 402, thereby unlocking the welding head 300, completing the convenient disassembly of the welding head, realizing one-key unlocking, greatly shortening the time required for replacing the welding head 300, and reducing the downtime. After the disassembly is completed, the relevant operator releases the sliding shell 500, and the spring 2 601 will use its own rebound force to push the sliding shell 500 to automatically return to the initial position. At the same time, the spring 1 405 also uses its own rebound force to push the sliding locking head 401 and the rectangular plate 404 to return to the initial position. The welding head 300 is in the same position as the welding head 300, and the welding head 300 is in the same position as the welding head 300. The welding head 300 is in the same position as the welding head 300, and the welding head 300 is in the same position as the welding head 300. The welding head 300 is in the same position as the welding head 300, and the welding head 300 is in the same position as the welding head 300. The welding head 300 is in the same position as the welding head 300, and the welding head 300 is in the same position as the welding head 300. The welding head 300 is in the same position as the welding head 300, and the welding head 300 is in the same position as the welding head 300. It is reset under the action of the rebound force, and finally the sliding locking head 401 is extended into the annular locking groove 402 for locking. The welding head 300 can be fixed with just one insertion, which simplifies the operation process of replacing the welding head 300 and significantly improves the work efficiency. At the same time, the rectangular limiting steel plate 700 cooperates with the limiting groove to prevent the welding head 300 from being misplaced, ensuring the position accuracy of the welding head during installation while ensuring the stability of the welding head 300 during use. During welding, the transducer 100 converts the electrical energy of the external ultrasonic generator into high-frequency vibration, and amplifies the energy and transmits it to the welding head 300 through the amplitude transformer 200, and finally generates high-temperature friction heat at the contact point of the workpiece to achieve efficient welding of the workpiece.

[0027] like Figure 1-3 As shown, the outer arc surface of the sliding shell 500 is provided with anti-skid patterns 900, and the anti-skid patterns 900 enhance the operating feel and anti-skid property.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An ultrasonic welding device, characterized in that: The invention comprises a transducer (100) and a horn (200) arranged at the lower end of the transducer (100), wherein the lower end of the horn (200) is provided with a quick disassembly and assembly mechanism, wherein the quick disassembly and assembly mechanism comprises a welding head (300) movably plugged into the lower end of the horn (200), wherein the middle part of the inner arc surface of the horn (200) is provided with a rectangular sliding opening (400) with a uniform annular shape, wherein a sliding locking head (401) is slidably connected in the rectangular sliding opening (400), and wherein the welding head (300) is provided with a plurality of sliding locking heads (401) and a plurality of sliding locking heads (401) are provided in the rectangular sliding opening (400). An annular locking groove (402) is provided at the upper end of the outer arc surface of the head (300), and the inner end of the sliding locking head (401) is arranged in cooperation with the annular locking groove (402). The lower end of the amplitude transformer (200) is also provided with a driving component for driving the sliding locking head (401) to move synchronously. The lower end of the inner end of the sliding locking head (401) is tilted downward from the inside to the outside, and the transducer (100) is electrically connected to an external ultrasonic generator.

2. An ultrasonic welding device as claimed in claim 1, characterized in that: The quick disassembly and assembly mechanism further comprises rectangular grooves (403) respectively arranged in the middle of the upper surface of the rectangular sliding opening (400), the inner end of the upper surface of the sliding locking head (401) is provided with a rectangular plate (404), the rectangular plates (404) are respectively located inside the vertically adjacent rectangular grooves (403), and a spring (405) is provided between the outer side surface of the rectangular plate (404) and the relative inner wall surface of the rectangular groove (403) in which it is located.

3. An ultrasonic welding device as claimed in claim 1, characterized in that: The driving assembly comprises a sliding shell (500) slidably connected to the outer arc surface of the amplitude changing rod (200); the upper end of the inner arc surface of the sliding shell (500) is provided with a lower pressure plate (501) evenly distributed in an annular manner; the outer end of the lower end of the lower pressure plate (501) is tilted upward from the inside to the outside; the outer end of the upper surface of the sliding locking head (401) is provided with an oblique groove (502) adapted to the lower pressure plate (501); and the outer arc surface of the amplitude changing rod (200) is also provided with a reset assembly for resetting the sliding shell (500).

4. An ultrasonic welding device as claimed in claim 3, characterized in that: The reset assembly comprises an annular plate (600) arranged on the outer arc surface of the amplitude change rod (200) near the highest end of the lower pressure plate (501), and a second spring (601) evenly distributed in an annular shape is arranged between the upper end surface of the annular plate (600) and the top wall surface of the sliding shell (500).

5. An ultrasonic welding device as claimed in claim 1, characterized in that: A rectangular limiting steel plate (700) is provided in the middle of the top wall surface of the amplitude transformer (200), and a limiting groove matching the rectangular limiting steel plate (700) is provided in the middle of the upper surface of the welding head (300).

6. An ultrasonic welding device as claimed in claim 1, characterized in that: The rear ends of the left and right surfaces of the transducer (100) are provided with mounting plates (800) that are symmetrically distributed laterally.

7. An ultrasonic welding device as claimed in claim 3, characterized in that: The outer arc surface of the sliding shell (500) is provided with anti-slip grooves (900).

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