Single-axis high-frequency reciprocating vibration type ultrasonic handle

Abstract

The utility model discloses a single -axis high frequency reciprocating vibration type's ultrasonic handle, including knife component, transducer subassembly and knife head subassembly, the knife component is sleeved and has received ring, the knife component is equipped with inner chamber no.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic processing technology, specifically to a single tangential high-frequency reciprocating ultrasonic handle. Background Technology

[0002] Most existing ultrasonic tool holders use longitudinally vibrating piezoelectric wafers to drive the ultrasonic waves, generating pure axial longitudinal vibration. Alternatively, they convert longitudinal vibration into a longitudinal-torsional composite vibration mode by machining a slanted groove on the amplitude transformer. These types of ultrasonic tool holders all exhibit longitudinal vibration during machining. This results in the ultrasonic vibration direction being perpendicular to the tool feed direction during milling or grinding, causing the machined material surface to have a fish-scale pattern or a matte finish. While improving roughness, this sacrifices surface gloss. Especially when finishing soft materials, longitudinal vibration exacerbates the decrease in surface roughness and can even form micro-pits, affecting the workpiece's appearance quality. Utility Model Content

[0003] The purpose of this invention is to provide a single tangential high-frequency reciprocating ultrasonic handpiece, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a single tangential high-frequency reciprocating ultrasonic handle, comprising a mortise handle, a transducer assembly, and a blade assembly that are fitted together. A receiving ring is sleeved on the mortise handle, and the mortise handle has an inner cavity. The transducer is installed in the inner cavity, and the receiving ring is adapted to the position of the transducer assembly. The transducer assembly includes a rear pressure plate, a clamping screw, several fan-shaped piezoelectric ceramic plates, and an amplitude transformer. The clamping screw is connected to the rear pressure plate and the amplitude transformer, and the rear pressure plate and the amplitude transformer clamp several fan-shaped piezoelectric ceramic plates. The several fan-shaped piezoelectric ceramic plates are arranged around the clamping screw and form a circular structure. The bottom of the amplitude transformer is connected to the blade assembly.

[0005] Preferably, there are three fan-shaped piezoelectric ceramic sheets.

[0006] Preferably, the bottom of the amplitude transformer is provided with a sleeve portion, and the sleeve portion is provided with an inner cavity II extending upward from the bottom of the amplitude transformer, and the cutter head assembly is installed in the inner cavity II.

[0007] Preferably, the cutter head assembly includes a pressure cap and an elastic chuck, wherein the elastic chuck is located inside the inner cavity, and the pressure cap is sleeved on the outer circumference of the sleeve portion.

[0008] Preferably, the cutter head assembly is equipped with a cutting tool.

[0009] Preferably, the fan-shaped piezoelectric ceramic sheet is a tangentially polarized piezoelectric ceramic sheet.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention achieves pure tangential high-frequency reciprocating vibration of the transducer through a tangentially polarized fan-shaped piezoelectric ceramic sheet, avoiding the adverse effects of longitudinal vibration on the machined surface, making the workpiece surface more delicate and bright, and significantly improving surface roughness. Through the pure torsional transducer structure design, this invention makes the tool vibration direction and rotation direction on the same plane, effectively eliminating fish scale patterns and matte surfaces, and is particularly suitable for the precision machining of soft materials. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the structure of this utility model.

[0012] The reference numerals and names in the figure are as follows: 1. Receiving ring; 2. Tool holder; 3. Rear pressure plate; 4. Clamping screw; 5. Fan-shaped piezoelectric ceramic sheet; 6. Amplifier rod; 7. Elastic collet; 8. Pressure cap; 9. Tool. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] Please see Figures 1 to 3This utility model provides an embodiment of an ultrasonic handle with a single tangential high-frequency reciprocating vibration mode, comprising a handle 2, a transducer assembly, and a cutter head assembly. A receiving ring 1 is sleeved on the handle 2. The handle 2 has an inner cavity, in which the transducer assembly is installed. The transducer assembly includes a rear pressure plate 3, a clamping screw 4, three fan-shaped piezoelectric ceramic plates 5, and an amplitude transformer 6. The clamping screw 4 is connected to the rear pressure plate 3 and the amplitude transformer 6 respectively. The rear pressure plate 3 and the amplitude transformer 6 clamp the three fan-shaped piezoelectric ceramic plates 5. The three fan-shaped piezoelectric ceramic plates 5 are evenly distributed around the clamping screw 4 to form a circular structure. The bottom of the amplitude transformer 6 has a sleeve portion, and the sleeve portion has an inner cavity. The cutter head assembly is installed in the inner cavity. The cutter head assembly includes an elastic chuck 7 and a pressure cap 8. The elastic chuck 7 is located in the inner cavity, and the pressure cap 8 is sleeved on the outer circumference of the sleeve portion. The cutter 9 is installed in the elastic chuck 7.

[0016] Furthermore, the wireless receiving ring 1 is wirelessly electromagnetically connected to the sector-shaped piezoelectric ceramic sheet 5. The sector-shaped piezoelectric ceramic sheet 5 is controlled by the wireless receiving ring 1 to achieve high-frequency micro-vibration control, thereby improving the tool life and processing efficiency. The multiple sector-shaped piezoelectric ceramic sheets 5 are evenly distributed, resulting in uniform and stable vibration and high output efficiency.

[0017] Furthermore, a compatible interface is provided at the top of the tool holder 2, which is used to connect with the machine tool spindle and has wide applicability.

[0018] The three fan-shaped piezoelectric ceramic plates 5 are all tangentially polarized piezoelectric ceramic plates, forming a pure tangential vibration ultrasonic tool holder. Since no longitudinal amplitude participates in the cutting, the direction of ultrasonic vibration is on the same plane as the direction of high-speed rotation of the tool. Under the action of the tangentially polarized transducer, the tool 9 achieves pure tangential high-frequency micro-vibration, which improves tool life and processing efficiency, while making the surface of the processed workpiece more delicate and bright. It improves the fish scale pattern and matte surface problems that occur when processing workpieces with conventional ultrasonic tool holders, and better improves the surface roughness of the workpiece while ensuring the appearance effect.

[0019] Working principle: In the operation of this utility model, the ultrasonic driver receives electrical energy through the control receiving ring 1, which drives the tangentially polarized fan-shaped piezoelectric ceramic sheet 5 to generate high-frequency electric field changes. Since the piezoelectric ceramic sheet is tangentially polarized, its excitation mode is reciprocating vibration in the circumferential tangential direction, which in turn drives the amplitude transformer 6 and the cutter head assembly to generate pure tangential high-frequency micro-vibration. While the cutter 9 rotates at high speed, it performs high-frequency reciprocating micro-vibration along the circumferential tangential direction without longitudinal vibration, thereby achieving fine processing of the workpiece surface, avoiding fish scale texture and matte surface, and improving surface gloss and roughness.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A single tangential high-frequency reciprocating ultrasonic handle, comprising a mating handle, a transducer assembly, and a cutter head assembly, characterized in that: A receiving ring is sleeved on the tool holder. The tool holder has an inner cavity. The transducer is installed in the inner cavity. The receiving ring is adapted to the position of the transducer assembly. The transducer assembly includes a rear pressure plate, a clamping screw, several fan-shaped piezoelectric ceramic plates, and an amplitude transformer. The clamping screw is connected to the rear pressure plate and the amplitude transformer, and the rear pressure plate and the amplitude transformer clamp several fan-shaped piezoelectric ceramic plates. The several fan-shaped piezoelectric ceramic plates are arranged around the clamping screw and form a ring structure. The bottom of the amplitude transformer is connected to the tool head assembly.

2. The ultrasonic handpiece with a single tangential high-frequency reciprocating vibration mode according to claim 1, characterized in that: The fan-shaped piezoelectric ceramic sheet is provided in three parts.

3. The ultrasonic handpiece with a single tangential high-frequency reciprocating vibration mode according to claim 1, characterized in that: The bottom of the amplitude transformer is provided with a sleeve portion, and the sleeve portion is provided with an inner cavity II extending upward from the bottom of the amplitude transformer. The cutter head assembly is installed in the inner cavity II.

4. An ultrasonic handpiece with a single tangential high-frequency reciprocating vibration mode according to any one of claims 1 or 3, characterized in that: The cutter head assembly includes a pressure cap and an elastic chuck, wherein the elastic chuck is located inside the inner cavity, and the pressure cap is sleeved on the outer circumference of the sleeve portion.

5. An ultrasonic handpiece with a single tangential high-frequency reciprocating vibration mode according to any one of claims 1 or 3, characterized in that: The cutting head assembly is equipped with a cutting tool.

6. The ultrasonic handpiece with a single tangential high-frequency reciprocating vibration mode according to claim 1, characterized in that: The fan-shaped piezoelectric ceramic sheet is a tangentially polarized piezoelectric ceramic sheet.

7. The ultrasonic handpiece with a single tangential high-frequency reciprocating vibration mode according to claim 1, characterized in that: The transducer assembly is a pure torsional mode vibration structure.

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