Ultrasonic double-end vibrator

Abstract

The utility model relates to an ultrasonic wave double-end vibrator, which comprises an amplitude-change pole and two vibration rods connected on the amplitude-change pole, each vibration rod comprises a front cylinder cover, a rear cylinder cover and a connecting screw used for connecting the front cylinder cover and the rear cylinder cover, and the amplitude-change pole, the front cylinder cover, the rear cylinder cover and the connecting screw are all made of TC4 titanium alloy. The TC4 titanium alloy has the characteristics of high strength and high hardness, so that the vibrator is not easy to break or wear when bearing high-strength ultrasonic vibration, the service life of the vibrator is remarkably prolonged, and the maintenance cost and the downtime caused by frequent replacement are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic waves, in particular to an ultrasonic double-head vibrator. Background Art

[0002] Ultrasonic technology is widely used in many industries such as plastic welding, metal processing, and medical equipment. Ultrasonic vibrators are core components whose performance directly affects the working efficiency and welding quality of ultrasonic equipment. Traditionally, ultrasonic vibrators are mainly made of aluminum alloy, including amplitude transformers and vibration rod structures with aluminum front and rear cylinder heads connected by internal steel screws. However, as the market's requirements for production efficiency and product quality continue to increase, these traditional materials have begun to show their limitations:

[0003] 1. Performance limitations: Aluminum alloy amplitude rods and front and rear cylinder covers are prone to wear under long-term high-frequency vibration, resulting in reduced energy transfer efficiency and affecting welding results.

[0004] 2. Durability issue: The steel inner screw is prone to fatigue fracture in a continuous vibration environment, shortening the service life of the vibrator.

[0005] 3. Environmental and health hazards: In order to enhance the structural strength of aluminum alloy parts, glue is often needed for reinforcement, but glue contains harmful substances, which poses a threat to the health of operators and the environment.

[0006] 4. Noise pollution: The noise generated by traditional aluminum alloy vibrators during operation exceeds the human comfort range, which not only affects the working environment, but may also cause long-term damage to the operator's hearing. Utility Model Content

[0007] In view of the deficiencies in the background technology, the utility model provides an ultrasonic double-head vibrator.

[0008] The technical solution adopted by the utility model is: an ultrasonic double-head vibrator, including a variable amplitude rod and two vibration rods connected to the variable amplitude rod, the vibration rod includes a front cylinder cover, a rear cylinder cover and a connecting screw rod for connecting the front cylinder cover and the rear cylinder cover, and the variable amplitude rod, the front cylinder cover, the rear cylinder cover and the connecting screw rod are all made of TC4 titanium alloy.

[0009] Furthermore, the rear cylinder cover is provided with a sinker screw hole that cooperates with the connecting screw thread, and the front cylinder cover is provided with a through hole, and the end of the through hole is provided with an internal screw head that cooperates with the connecting screw thread.

[0010] Furthermore, an annular gap is left between the outer ring of the inner screw head and the front cylinder cover.

[0011] Furthermore, a piezoelectric ceramic sheet and an electrode sheet are sleeved on the connecting screw between the front cylinder head and the rear cylinder head.

[0012] Furthermore, a first connecting screw hole is provided on the connecting end surface of the rear cylinder cover and the amplitude varying rod.

[0013] Furthermore, a circle of annular steps is formed in the middle of the amplitude transformer.

[0014] Furthermore, a hexagonal nut is provided on the bottom end surface of the amplitude transformer, and a second connecting screw hole is provided in the hexagonal nut.

[0015] The beneficial effects of the utility model are:

[0016] 1. Significantly improve durability and reliability: The high strength and high hardness of TC4 titanium alloy make the vibrator less likely to break or wear when subjected to high-intensity ultrasonic vibration, significantly extending the service life of the vibrator and reducing maintenance costs and downtime caused by frequent replacement.

[0017] 2. Optimized frequency stability and temperature control performance: Titanium alloy has a low thermal expansion coefficient, which ensures that the vibrator can maintain a more stable vibration frequency and temperature under long-term continuous work, reduces the frequency drop phenomenon, improves welding quality and production efficiency, and is especially suitable for continuous production operations with high precision requirements.

[0018] 3. Reduce noise pollution: Compared with traditional aluminum alloy vibrators, the noise of titanium alloy vibrators in working state is significantly reduced, creating a safer and more comfortable working environment, protecting the hearing health of operators, and conforming to the environmental protection and people-oriented concepts of modern factories.

[0019] 4. Environmentally friendly and safe production process: Abandoning the traditional reinforcement method of using toxic glue, the titanium alloy vibrator relies on its own material advantages to achieve high-strength connection, eliminating safety hazards in the production process, reducing pollution to the environment, and meeting green production standards.

[0020] 5. Enhance system compatibility and flexibility: Titanium alloy vibrators have a wider frequency band adaptability and can better match ultrasonic equipment of different power and frequency, enhancing the versatility and flexibility of the equipment and meeting diverse production needs.

[0021] 6. Improve overall economic benefits: Although the cost of titanium alloy materials is relatively high, due to its excellent performance, it reduces maintenance costs, improves production efficiency and product qualification rate. In the long run, it can bring users a higher return on investment and comprehensive benefits.

[0022] 7 Easy disassembly and maintenance: In the ultrasonic double-head vibrator design of this application, the vibration rod is divided into two parts, the front cylinder head and the rear cylinder head, which are connected by a titanium alloy connecting screw. This design not only ensures a firm connection between the components, but also facilitates the disassembly and replacement of the front cylinder head or the rear cylinder head. When the front cylinder head or the rear cylinder head is worn or needs to be replaced with a new model to adapt to different process requirements, users can quickly and accurately replace the damaged or outdated parts separately without replacing the vibrator as a whole, which greatly saves maintenance time and cost and improves production flexibility and response speed.

[0023] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0027] Figure 1-2 Middle: 1. Amplitude transformer; 2. Front cylinder head; 3. Rear cylinder head; 4. Connecting screw; 5. Sinking screw hole; 6. Through hole; 7. Internal screw head; 8. Annular gap; 9. Piezoelectric ceramic sheet; 10. Electrode sheet; 11. First connecting screw hole; 12. Annular step; 13. Hexagonal nut; 14. Second connecting screw hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] The utility model provides an ultrasonic double-head vibrator.

[0031] In this embodiment, refer to Figure 1-2The ultrasonic double-head vibrator includes a variable amplitude rod 1 and two vibration rods connected to the variable amplitude rod, the vibration rod includes a front cylinder cover 2, a rear cylinder cover 3 and a connecting screw 4 for connecting the front cylinder cover and the rear cylinder cover, and the variable amplitude rod, the front cylinder cover, the rear cylinder cover and the connecting screw are all made of TC4 titanium alloy.

[0032] In the above technical solution, the amplitude rod and the two vibration rods are made of TC4 titanium alloy, which significantly improves the overall mechanical strength and corrosion resistance. The front and rear cylinder heads of the vibration rods are tightly connected to the connecting screws through the precisely designed sinker screw holes and the internal screw heads in the through holes, which not only ensures the high efficiency of vibration transmission, but also makes the disassembly and assembly of the front and rear cylinder heads extremely convenient, which is convenient for separate replacement or maintenance, and reduces the maintenance cost and complexity.

[0033] Specifically, the rear cylinder cover is provided with a sinker screw hole 5 that matches with the thread of the connecting screw, and the front cylinder cover is provided with a through hole 6. The end of the through hole is provided with an internal screw head 7 that matches with the thread of the connecting screw.

[0034] Through the design of the sinker screw holes in the rear cylinder head, the through holes in the front cylinder head and the inner screw head, a close fit between the front and rear cylinder heads and the connecting screws is achieved, which improves the assembly accuracy and stability. This not only ensures the high efficiency of vibration transmission, but also makes the disassembly and assembly of the front and rear cylinder heads extremely convenient, facilitating separate replacement or maintenance, and reducing maintenance costs and complexity.

[0035] Specifically, an annular gap 8 is left between the outer ring of the inner screw head and the front cylinder cover; a piezoelectric ceramic sheet 9 and an electrode sheet 10 are sleeved on the connecting screw between the front cylinder cover and the rear cylinder cover; a first connecting screw hole 11 is provided on the connecting end surface of the rear cylinder cover and the amplitude transformer.

[0036] In the above technical solution, the provision of the first connecting screw hole can enable a detachable connection between the rear cylinder cover and the amplitude transformer through the stud, thereby facilitating individual replacement of each component.

[0037] Specifically, a circle of annular steps 12 is formed in the middle of the horn.

[0038] The annular step design in the middle of the horn is used to optimize the force transmission path and help control and focus the ultrasonic energy.

[0039] Specifically, a hexagonal nut 13 is provided on the bottom end surface of the amplitude transformer, and a second connecting screw hole 14 is provided in the hexagonal nut.

[0040] In the above technical solution, a mounting opening is provided for the vibrator through the hexagonal nut and the second connecting screw hole built therein, so as to facilitate the installation and use of the vibrator.

[0041] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. An ultrasonic double-head vibrator, comprising a horn and two vibrating rods connected to the horn, characterized in that: The vibration rod comprises a front cylinder cover, a rear cylinder cover and a connecting screw rod for connecting the front cylinder cover and the rear cylinder cover, and the amplitude change rod, the front cylinder cover, the rear cylinder cover and the connecting screw rod are all made of TC4 titanium alloy.

2. The ultrasonic double-head vibrator according to claim 1, characterized in that: The rear cylinder cover is provided with a sinking screw hole matched with the connecting screw thread, and the front cylinder cover is provided with a through hole, and the end of the through hole is provided with an internal screw head matched with the connecting screw thread.

3. The ultrasonic double-head vibrator according to claim 2, characterized in that: An annular gap is left between the outer ring of the inner screw head and the front cylinder cover.

4. The ultrasonic double-head vibrator according to claim 2, characterized in that: A piezoelectric ceramic sheet and an electrode sheet are sleeved on the connecting screw between the front cylinder cover and the rear cylinder cover.

5. The ultrasonic double-head vibrator according to claim 1, characterized in that: A first connecting screw hole is provided on the connecting end surface of the rear cylinder cover and the amplitude transformer.

6. The ultrasonic double-head vibrator according to claim 1, characterized in that: The middle part of the horn is provided with a circle of annular steps.

7. The ultrasonic double-head vibrator according to claim 1, characterized in that: A hexagonal nut is provided on the bottom end surface of the amplitude transformer, and a second connecting screw hole is provided in the hexagonal nut.

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