Ultrasonic high-frequency micro-vibration type elbow head

Abstract

The utility model discloses an ultrasonic wave high frequency microvibration type elbow head, including drive assembly and elbow mould, drive assembly at least includes PZT piece and amplitude change rod, amplitude change rod one end is connected with PZT piece, and the other end is connected with elbow mould of amplitude change rod. The utility model discloses through setting PZT piece, amplitude change rod and elbow mould, PZT piece produces high frequency vibration, and passes through amplitude change rod and is transferred to elbow mould on, when elbow, this high frequency microvibration hits into pipe material after, and the stretching of the side microvibration lets pipe material more easily form, and along with the high frequency microvibration of constantly, the stress formed in the pipe material stretching process also can be better released, and let the structure characteristic of forming pipe material is better, and the elbow efficiency is also higher.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, specifically to an ultrasonic high-frequency micro-vibration type pipe bend. Background Technology

[0002] Existing conventional pipe bending mechanisms involve placing the pipe into a bending mold, fixing the pipe with a clamping device to ensure that the pipe does not move or shake during the bending process, and then rotating the bending head to achieve bending of pipes of different angles and diameters.

[0003] Existing pipe bending mechanisms clamp specific pipes onto a bending die using a clamping device, and rotate the bending head at different angles to bend the pipe. During the bending process, the pipe is subjected to high tensile force. For pipes with small diameters (<6mm), due to the pipe's inherent low strength, uneven deformation can occur at the bend under such strong tensile force. This can even lead to tearing, excessive stress, and reduced strength at the bend when the bending angle exceeds 90 degrees. Therefore, when bending small pipes, lower tensile force and higher bending speeds are often used, reducing production efficiency, increasing defect rates, and causing stress concentration at the bend. Utility Model Content

[0004] The purpose of this invention is to provide an ultrasonic high-frequency micro-vibration type pipe bending head, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultrasonic high-frequency micro-vibration type pipe bending head, including a driving component and a pipe bending mold, wherein the driving component includes at least a PZT component and an amplitude transformer, one end of the amplitude transformer is connected to the PZT component, and the other end of the amplitude transformer is connected to the pipe bending mold.

[0006] Preferably, it also includes a base and a rear cover plate. The base is provided with a receiving groove, wherein the rear cover plate and the PZT part are placed in the receiving groove in sequence from bottom to top, and the rear cover plate, the PZT part and the amplitude rod are connected by a fixing screw.

[0007] Preferably, both the rear cover plate and the PZT component are provided with through holes through which the threaded end of the fixing screw can pass, and the bottom of the amplitude rod is provided with a threaded hole. The threaded end of the fixing screw passes through the through holes of the rear cover plate and the PZT component in sequence and is then threadedly connected to the threaded hole.

[0008] Preferably, at least two PZT components are provided, and at least two PZT components are located between the rear cover plate and the luffing rod.

[0009] Preferably, the bending die and the amplitude transformer are connected by two fixing screws.

[0010] Preferably, the bending mold has a through hole through which the threaded end of the fixing screw 2 can pass, and the top of the amplitude rod has a threaded hole 2 that is compatible with the fixing screw 2. The threaded end of the fixing screw 2 passes through the through hole of the bending mold and is threadedly connected to the threaded hole 2.

[0011] Preferably, the base has a threaded through hole on its side, and the threaded through hole corresponds to the position of the rear cover plate.

[0012] Preferably, the top of the amplitude transformer is provided with an installation groove that is adapted to the structure of the bending die, and the bending die is embedded in the installation groove.

[0013] Preferably, the base is in the shape of a disc base, and the base is provided with a number of evenly arranged mounting through holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a PZT component, an amplitude transformer, and a bending die. The PZT component generates high-frequency vibration, which is transmitted to the bending die via the amplitude transformer. During bending, this high-frequency micro-vibration is driven into the pipe, causing it to stretch while vibrating, making the pipe easier to form. Simultaneously, with continuous high-frequency micro-vibration, the stress generated during the pipe stretching process is better released, resulting in better structural characteristics of the formed pipe and higher bending efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an exploded view of the structure of this utility model. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] Please see Figures 1 to 3 The present invention provides an embodiment of an ultrasonic high-frequency micro-vibration type pipe bending head, comprising a base 1, a rear cover plate 2, a PZT component 3, an amplitude transformer 4, and a pipe bending mold 5. The base 1 is provided with a receiving groove 6, and the rear cover plate 2 and the PZT component 3 are placed in the receiving groove 6 from bottom to top. The rear cover plate 2, the PZT component 3, and the amplitude transformer 4 are assembled and fixed by fixing screw 7. The PZT component 3 is located between the rear cover plate 2 and the amplitude transformer 4, and the pipe bending mold 5 is assembled and fixed to the amplitude transformer 4 by fixing screw 8.

[0022] Among them, PZT component 3 is a piezoelectric ceramic. When a positive voltage is applied to PZT component 3, the tube will stretch, and when a negative voltage is applied, the tube will contract. Utilizing this principle, we integrate a sinusoidal alternating high-frequency voltage into PZT component 3 to generate specific high-frequency micro-stretching vibrations. Then, the amplitude of this vibration is amplified by the amplitude transformer 4 and transmitted to the bending die 5. The tube 15 is clamped by the clamping fixture, and the bending die 5 contacts the tube 15. The high-frequency micro-vibration on the bending die 5 is transmitted to the tube 15, and the tube 15 will also generate high-frequency micro-vibration. When we bend the tube 15 with high-frequency micro-vibration, we can achieve a better bending effect, effectively remove bending stress concentration, and improve bending efficiency.

[0023] In this embodiment, two PZT parts 3 are provided. The two PZT parts are stacked between the rear cover plate 2 and the amplitude rod 4 and are assembled and fixed by fixing screw 7.

[0024] Both the rear cover plate 2 and the PZT part 3 are provided with through holes through which the threaded end of the fixing screw 7 can pass. The bottom of the amplitude rod 4 is provided with a threaded hole 11. The threaded end of the fixing screw 7 passes through the through holes of the rear cover plate 2 and the PZT part in sequence and is then threadedly connected to the threaded hole 11.

[0025] In other embodiments, the PZT component 3 can be configured as multiple components, and the multiple PZT components 3 are located between the rear cover plate 2 and the amplitude rod 4.

[0026] The bending die 5 is provided with a through hole through which the threaded end of the fixing screw 8 can pass. The top of the amplitude rod 4 is provided with a threaded hole 12 that matches the fixing screw 8. The threaded end of the fixing screw 8 passes through the through hole of the bending die 5 and is threadedly connected to the threaded hole 12.

[0027] In this embodiment, threaded hole 11 is connected to threaded hole 12.

[0028] The base 1 has a threaded through hole 13 on its side, and the threaded through hole 13 corresponds to the position of the rear cover plate 2. The threaded through hole 13 can be screwed with a locking screw, which tightens the rear cover plate 2, so that the rear cover plate 2 is fixedly connected to the base 1. The rear cover plate 2, PZT part 3, amplitude transformer 4 and bending mold 5 are fixedly connected by fixing screw 7 and fixing screw 8, and assembled into an ultrasonic high-frequency micro-vibration type bending head.

[0029] The top of the amplitude rod 4 is provided with an installation groove 10 that is compatible with the structure of the bending die 5. The bending die 5 is embedded in the installation groove 10 and locked in place by the fixing screw 8. The installation groove 10 can limit the bending die 5 to prevent it from rotating and shifting during high-frequency vibration, thereby improving the bending effect.

[0030] The base 1 is in the shape of a disc base, and the base 1 is provided with several evenly arranged mounting through holes 14. The mounting screws can pass through the mounting through holes 14 and be screwed to the transmission module. The ultrasonic high-frequency micro-vibration type bending head is assembled onto the transmission module, and the transmission module can drive the ultrasonic high-frequency micro-vibration type bending head to achieve the bending action.

[0031] Furthermore, the transmission module can be a lead screw drive module, a multi-axis robotic arm, or a cylinder, etc.

[0032] Furthermore, pipe 15 can be made of various metal materials such as copper pipe and aluminum alloy pipe.

[0033] 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. An ultrasonic high frequency micro-vibration type elbow head, comprising a driving assembly and an elbow mold, characterized in that: The driving assembly comprises at least a PZT piece and a variable amplitude rod, one end of the variable amplitude rod is connected with the PZT piece, and the other end of the variable amplitude rod is connected with the elbow mold.

2. An ultrasonic high frequency micro-vibration type bend head according to claim 1, characterized in that: The base and the back cover plate are further included, the base is provided with a containing groove, the back cover plate and the PZT piece are sequentially placed in the containing groove from bottom to top, and the back cover plate, the PZT piece and the variable amplitude rod are connected by the fixing screw one.

3. An ultrasonic high frequency micro-vibration type bend head according to claim 2, characterized in that: The back cover plate and the PZT piece are provided with through holes through which the threaded end of the fixing screw one passes, and the bottom of the variable amplitude rod is provided with a threaded hole one, the threaded end of the fixing screw one is sequentially threaded through the through holes of the back cover plate and the PZT piece and is screwed with the threaded hole one.

4. An ultrasonic high frequency micro-vibration type bend head according to any one of claims 1 to 3, characterized in that: The PZT piece is provided with at least two pieces, and the at least two pieces of the PZT piece are located between the back cover plate and the variable amplitude rod.

5. The ultrasonic high frequency micro-vibration type bend head according to claim 1, characterized in that: The elbow mold is connected with the variable amplitude rod by a fixing screw two.

6. An ultrasonic high frequency micro-vibration type bend head according to claim 5, characterized in that: The elbow mold is provided with a through hole through which the threaded end of the fixing screw two passes, and the top of the variable amplitude rod is provided with a threaded hole two matched with the fixing screw two, the threaded end of the fixing screw two is threaded through the through hole of the elbow mold and is screwed with the threaded hole two.

7. The ultrasonic high frequency micro-vibration type bend head according to claim 2, characterized in that: The base is provided with a threaded through hole corresponding to the position of the back cover plate.

8. The ultrasonic high frequency micro-vibration type bend head according to claim 1, characterized in that: The top of the variable amplitude rod is provided with a mounting groove matched with the structure of the elbow mold, and the elbow mold is embedded in the mounting groove.

9. The ultrasonic high frequency micro-vibration type bend head according to claim 2, characterized in that: The base is in the shape of a disc base, and a plurality of mounting through holes are uniformly arranged on the base.

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