Ultrasonic knife handle with quick power connection port and method

Abstract

An ultrasonic tool holder with a quick power connection port and a method belong to the technical field of ultrasonic vibration machining devices. The present invention aims to solve the problems of complex operation and exposed circuits during tool changing of existing magnetic-ring ultrasonic tool holders. The present invention includes a power connection port and a wiring board. The power connection port is arranged on the magnetic-ring tool head assembly of the ultrasonic tool holder, and the power connection port is electrically connected to the magnetic ring in the magnetic-ring tool head assembly through an electric wire. The wiring board is arranged on the bed of the ultrasonic tool holder, the wiring board is connected to an external power supply, and has a magnetic-attraction power connection port. The power connection port and the magnetic-attraction power connection port of the wiring board are arranged opposite to each other, and the magnetic ring of the magnetic-ring tool head assembly is quickly electrically connected or disconnected from the external power supply through magnetic attraction. The present invention is used for power connection during quick tool changing of the ultrasonic tool holder.

Description

Technical Field

[0001] The present invention relates to an ultrasonic tool holder with a magnetic ring type wireless power transmission method and a connection technology between its outer magnetic ring and an external electrical signal, belonging to the technical field of ultrasonic vibration processing devices. Background Art

[0002] Ultrasonic assisted processing is widely used in special processing of various difficult-to-machine materials. Its main working principle is to convert the externally input electrical signal into a vibration signal through a piezoelectric transducer or a giant magnetostrictive transducer, and then realize the ultrasonic processing of the workpiece to improve the processing conditions and processing quality.

[0003] For an ultrasonic tool holder adopting a magnetic ring type wireless power transmission method, for the connection between its outer magnetic ring and an external electrical signal, the prior art often adopts a method of accessing through a power line, which not only makes the operation complex when changing the tool, but also increases the degree of exposure of the line and increases potential risks. Summary of the Invention

[0004] Aiming at the problems of complex operation when changing the tool with a magnetic ring type ultrasonic tool holder and exposed lines in the prior art, the present invention provides an ultrasonic tool holder and method with a quick power connection port.

[0005] The ultrasonic tool holder with a quick power connection port of the present invention includes a power connection port 1 and a wiring board 2. The power connection port 1 is arranged on the magnetic ring tool head assembly of the ultrasonic tool holder, and the power connection port 1 is electrically connected to the magnetic ring in the magnetic ring tool head assembly through an electric wire; the wiring board 2 is arranged on the bed body of the ultrasonic tool holder, the wiring board 2 is connected to an external power supply, and has a magnetic absorption type power connection port. The power connection port 1 and the magnetic absorption type power connection port of the wiring board 2 are arranged opposite to each other, and the magnetic ring of the magnetic ring tool head assembly is quickly electrically connected or disconnected from the external power supply through magnetic absorption.

[0006] Preferably, the power connection port 1 includes a square lead screw groove 11, a positioning cylinder 12, positive and negative electrode columns 13, a square slider 14 and a spring 15. The square lead screw groove 11 is a square groove body with both ends open. One open end of the square lead screw groove 11 is fixed on the outer wall of the magnetic ring tool head assembly, and the other open end of the square lead screw groove 11 faces the direction of the wiring board 2, and this open end has an inward extending edge with a limiting function. The square slider 14 is arranged inside the square lead screw groove 11. A spring 15 is arranged between the inner end face of the square slider 14 and the outer wall of the magnetic ring tool head assembly. A positioning cylinder 12 is arranged on the outer end face of the square slider 14. The positioning cylinder 12 extends out of the groove through a through hole in the middle of the extending edge. When the spring 15 is in the initial position without deformation, the square slider 14 is located in the middle section of the groove. The positioning cylinder 12 is divided into two sections and is respectively located inside and outside the groove. When magnetic absorption occurs, the positioning cylinder 12 is attracted to the magnetic absorption type power connection port of the wiring board 2, and the spring 15 stretches to cooperate to complete the magnetic absorption process;

[0007] The outer end face of the positioning cylinder 12 is provided with positive and negative electrode posts 13. The magnetic ring in the magnetic ring cutter head assembly is connected to one end of a wire. The other end of the wire passes through the outer wall of the magnetic ring cutter head assembly and is electrically connected to the positive and negative electrode posts 13. After magnetic attraction, the magnetic ring is connected to an external power supply through the positive and negative electrode posts 13.

[0008] Preferably, the wiring board 2 includes a vertical board 21. A magnetic-attraction power connection port is arranged on the inner end face at the bottom of the vertical board 21. The magnetic-attraction power connection port is an arc-shaped groove. The upper end of the arc-shaped groove is arc-shaped and matches the radian of the positioning cylinder 12. The lower end is an open end. The vertical face groove bottom 22 of the arc-shaped groove is made of a magnetic material. Two vertical electrode travel grooves 23 are opened on the vertical face groove bottom 22. These two electrode travel grooves 23 are parallel and both have open ends at the lower end for accessing and electrically connecting with the positive and negative electrode posts 13. The two electrode travel grooves 23 are electrically connected to an external power supply through wires arranged inside the board.

[0009] When accessing through magnetic attraction, the positive and negative electrode posts 13 are inserted into the two electrode travel grooves 23 to realize the electrical connection between the magnetic ring and the external power supply. When changing the cutter head, the magnetic ring cutter head assembly drives the power connection port 1 to be pulled out downward, and the positive and negative electrode posts 13 slide out from the lower open ends of the two electrode travel grooves 23 to realize the electrical disconnection between the magnetic ring and the external power supply.

[0010] Preferably, the positioning cylinder 12 is made of iron.

[0011] The present invention also provides another technical solution, a method for quickly changing the cutter head of an ultrasonic tool shank. This method is realized based on the ultrasonic tool shank with a quick power connection port described in claim 4, and is characterized in that this method includes the following steps:

[0012] S1. First, the robotic arm disassembles the magnetic ring cutter head assembly in the vertical direction. At this time, the positive and negative electrode posts 13 slide downward along the electrode travel grooves 23 of the magnetic-attraction power connection port until they are disconnected from the wiring board 2.

[0013] S2. The spring 15 in the extended state contracts to the initial state. During the contraction process, the square slider 14, the positioning cylinder 12, and the positive and negative electrode posts 13 are pulled to slide along the square lead screw groove 11 towards the magnetic ring cutter head assembly direction, so that the positive and negative electrode posts 13 are separated from the wiring board 2 and a horizontal working gap is opened.

[0014] S3. Send the old tool shank and its supporting accessories in the magnetic ring cutter head assembly into the tool magazine.

[0015] S4. Align the new tool shank and its supporting accessories with the installation position, and the robotic arm connects the new tool shank to the spindle of the ultrasonic tool shank in the vertical upward direction.

[0016] S5. Rotate the magnetic ring cutter head assembly to bring the power connection port 1 close to the magnetic adsorption power connection port of the wiring board 2 until the bottom 22 of the vertical surface groove of the wiring board 2 is aligned and magnetically adsorbed with the positioning cylinder 12 of the power connection port 1, then the positive and negative electrode columns 13 are inserted into the corresponding two electrode travel grooves 23 to achieve rapid electrical connection.

[0017] Advantages of the present invention: In the ultrasonic tool holder structure provided by the present invention, the magnetic ring is connected to the external power supply by magnetic adsorption, and the positive and negative wiring columns are movably connected to the groove body. This method enables rapid power connection and disconnection, ensuring that there is no need to deal with the connection and disconnection of wires during tool change. Moreover, in this method, the wires are all hidden inside, reducing the risk of line leakage.

[0018] Simplify the operation of accessing external electrical signals to the outer magnetic ring, reduce the potential risk of wired transmission of electrical signals, and achieve full-link wireless power transmission of an ultrasonic tool holder using a magnetic ring type wireless power transmission method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the ultrasonic tool holder with a rapid power connection port according to the present invention;

[0020] Figure 2 is a schematic structural diagram of the power connection port arranged on the magnetic ring cutter head assembly of the ultrasonic tool holder;

[0021] Figure 3 is a schematic structural diagram of the power connection port, without showing the square lead screw groove;

[0022] Figure 4 is Figure 2 longitudinal sectional view of;

[0023] Figure 5 is a schematic structural diagram of the wiring board. [[ID=3l]]

[0024] 1. Power connection port, 11. Square lead screw groove, 12. Positioning cylinder, 13. Positive and negative electrode columns, 14. Square slider, 15 and spring;

[0025] 2. Wiring board, 21. Vertical plate, 22. Bottom of the vertical surface groove, 23. Electrode travel groove;

[0026] 3. Upper shell, 4. Lower shell, 5. Tool and supporting accessories, 6. Spindle, 7. Machine bed. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present invention.

[0030] Specific Embodiment 1: The following will be described in conjunction with Figures 1 to 5 This embodiment will be described. The ultrasonic tool handle with a quick power connection port in this embodiment includes a power connection port 1 and a wiring board 2. The power connection port 1 is arranged on the magnetic ring tool head assembly of the ultrasonic tool handle, and the power connection port 1 is electrically connected to the magnetic ring in the magnetic ring tool head assembly through an electric wire; the wiring board 2 is arranged on the bed body of the ultrasonic tool handle, the wiring board 2 is connected to an external power supply, and has a magnetic adsorption type power connection port. The power connection port 1 and the magnetic adsorption type power connection port of the wiring board 2 are arranged opposite to each other, and the magnetic ring of the magnetic ring tool head assembly is quickly electrically connected or disconnected from the external power supply through magnetic adsorption.

[0031] Refer to Figure 1 , the ultrasonic tool handle includes a power connection port 1, a wiring board 2, a magnetic ring tool head assembly, a main shaft 6 and a bed body 7. Among them, the magnetic ring tool head assembly includes a housing composed of an upper shell 3 and a lower shell 4 and a magnetic ring arranged inside the housing. In the traditional magnetic ring type ultrasonic tool handle, the connection between the magnetic ring and the external power supply is completed through an electric wire. When changing the tool handle, the physical connection of the electric wire needs to be processed. In this embodiment, the magnetic adsorption type is adopted, and the physical connection of the electric wire is bypassed both in power access and power disconnection. The external electrical signal contacts the positive and negative electrode columns 13 through the magnetic adsorption type power connection port of the wiring board 2, enters the magnetic ring coil inside the upper shell 3 and the lower shell 4 through the power connection port 1, and transmits the electrical signal to the piezoelectric transducer, converting the external electrical signal into a mechanical vibration signal to achieve the purpose of ultrasonic assisted processing, and at the same time realizing the full-link wireless power transmission of the ultrasonic tool handle adopting the magnetic ring type wireless power transmission method.

[0032] The power connection port 1 includes a square lead groove 11, a positioning cylinder 12, positive and negative electrode posts 13, a square slider 14 and a spring 15. The square lead groove 11 is a square groove body with openings at both ends. One open end of the square lead groove 11 is fixed on the outer wall of the magnetic ring cutter head assembly, and the other open end of the square lead groove 11 faces the wiring board 2. And this open end has an inward extending edge with a limiting function. The square slider 14 is arranged inside the square lead groove 11. A spring 15 is arranged between the inner end face of the square slider 14 and the outer wall of the magnetic ring cutter head assembly. A positioning cylinder 12 is arranged on the outer end face of the square slider 14. The positioning cylinder 12 extends out of the groove through the through hole in the middle of the extending edge. When the spring 15 is in the initial position without deformation, the square slider 14 is located in the middle section of the groove. The positioning cylinder 12 is divided into two sections and is respectively located inside and outside the groove. When magnetic attraction occurs, the positioning cylinder 12 is attracted to the magnetic attraction power connection port of the wiring board 2, and the spring 15 stretches to cooperate to complete the magnetic attraction process;

[0033] The outer end face of the positioning cylinder 12 is provided with positive and negative electrode posts 13. The magnetic ring in the magnetic ring cutter head assembly is connected to one end of the wire. The other end of the wire passes through the outer wall of the magnetic ring cutter head assembly and is electrically connected to the positive and negative electrode posts 13. After magnetic attraction, the magnetic ring is connected to the external power supply through the positive and negative electrode posts 13. The positioning cylinder 12 is made of iron.

[0034] The wiring board 2 includes a vertical plate 21. A magnetic attraction power connection port is arranged on the inner end face at the bottom of the vertical plate 21. The magnetic attraction power connection port is an arc-shaped groove. The upper end of the arc-shaped groove is arc-shaped and matches the radian of the positioning cylinder 12. The lower end is an open end. The vertical surface groove bottom 22 of the arc-shaped groove is made of magnetic material. Two vertical electrode travel grooves 23 are opened on the vertical surface groove bottom 22. These two electrode travel grooves 23 are parallel and both lower ends are open ends, which are used for the access and electrical connection of the positive and negative electrode posts 13. The two electrode travel grooves 23 are electrically connected to the external power supply through the wires arranged inside the board;

[0035] When magnetic attraction access occurs, the positive and negative electrode posts 13 are inserted into the two electrode travel grooves 23 to realize the electrical connection between the magnetic ring and the external power supply. When changing the cutter head, the magnetic ring cutter head assembly drives the power connection port 1 to be pulled out downward, and the positive and negative electrode posts 13 slide out from the lower open ends of the two electrode travel grooves 23 to realize the electrical disconnection between the magnetic ring and the external power supply.

[0036] The two electrode travel grooves 23 can be set to be of equal length or one long and one short, as long as they correspond to the positions of the positive and negative electrode posts 13.

[0037] When the power connection port 1 and the terminal block 2 are attracted, the spring 15 is in an extended state, and the square slider 14 is limited by the square lead groove 11 and cannot leave the groove. The presence of the positioning cylinder 12 is sufficient to allow the two positive and negative electrode columns 13 to be inserted into the two electrode travel grooves 23 respectively. The positioning cylinder 12 is engaged with the arc-shaped groove of the magnetic power connection port in the terminal block 2, further limiting the position of the two so that the attraction position is stable. When changing the tool, the magnetic ring cutter head assembly slides downward, and the two positive and negative electrode columns 13 are driven to slide out from the lower open ends of the two electrode stroke grooves 23. After the positioning cylinder 12 is completely separated from the vertical groove bottom 22 of the terminal block 2, the suction force disappears, the spring 15 contracts, and rebounds to its initial state, while pulling the square slider 14, the positioning cylinder 12 and the positive and negative electrode columns 13 along the square lead groove 11 toward the magnetic ring cutter head assembly, so that the positive and negative electrode columns 13 are separated from the terminal block 2 and a horizontal working gap is opened. This horizontal working gap ensures that the positioning cylinder 12 and the positive and negative electrode columns 13 will not conflict with the inner end surface of the terminal block 2 when they are not magnetically attracted when the power is connected next time, and the power port 1 can be smoothly rotated to align with the magnetic power port of the terminal block 2, completing the magnetic attraction between the two.

[0038] Specific implementation method 2: The following is combined Figures 1 to 5 This embodiment describes a method for quickly changing a blade head of an ultrasonic scalpel handle. The method is based on the ultrasonic scalpel handle with a quick power connection port described in the first embodiment. The method includes the following steps:

[0039] S1. The robotic arm first disassembles the magnetic ring cutter assembly in the vertical direction. At this time, the positive and negative electrode columns 13 slide downward along the electrode travel groove 23 of the magnetic power port until they are disconnected from the terminal block 2.

[0040] S2, the spring 15 in the extended state contracts to the initial state, and during the contraction process, pulls the square slider 14, the positioning cylinder 12 and the positive and negative electrode posts 13 to slide along the square lead groove 11 toward the magnetic ring cutter head assembly, so that the positive and negative electrode posts 13 are separated from the terminal block 2 and a horizontal working gap is opened;

[0041] S3. Send the old tool handle and its matching accessories in the magnetic ring cutter head assembly into the tool magazine;

[0042] S4. Align the new tool handle and its accessories to the installation position, and the robotic arm connects the new tool handle to the main shaft of the ultrasonic tool handle in a vertical upward direction;

[0043] S5. Rotate the magnetic ring cutter head assembly to bring the power port 1 close to the magnetic power port of the terminal block 2 until the vertical groove bottom 22 of the terminal block 2 is aligned with the positioning cylinder 12 of the power port 1 and attracted. Then the positive and negative electrode columns 13 are inserted into the corresponding two electrode travel grooves 23 to achieve quick electrical connection.

[0044] Although the present invention has been described herein with reference to particular embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Accordingly, it should be understood that numerous modifications may be made to the exemplary embodiments, and other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a separate embodiment may be used in other described embodiments.

Claims

1. An ultrasonic handle with a quick power connection port, characterized in that It includes a power connection port (1) and a wiring board (2). The power connection port (1) is arranged on the magnetic ring tool head assembly of the ultrasonic tool handle. The power connection port (1) is electrically connected to the magnetic ring in the magnetic ring tool head assembly through a wire. The wiring board (2) is arranged on the bed body of the ultrasonic tool handle. The wiring board (2) is connected to an external power supply and has a magnetic adsorption type power connection port. The power connection port (1) is arranged opposite to the magnetic adsorption type power connection port of the wiring board (2), and the magnetic ring of the magnetic ring tool head assembly is quickly electrically connected or disconnected from the external power supply through magnetic adsorption. The power connection port (1) includes a square lead screw groove (11), a positioning cylinder (12), positive and negative electrode columns (13), a square slider (14) and a spring (15). The square lead screw groove (11) is a square groove body with both ends open. One open end of the square lead screw groove (11) is fixed on the outer wall of the magnetic ring tool head assembly. The other open end of the square lead screw groove (11) faces the direction of the wiring board (2), and this open end has an inward extending edge with a limiting function. The square slider (14) is arranged inside the square lead screw groove (11). A spring (15) is arranged between the inner end face of the square slider (14) and the outer wall of the magnetic ring tool head assembly. A positioning cylinder (12) is arranged on the outer end face of the square slider (14). The positioning cylinder (12) extends out of the groove through a through hole in the middle of the extending edge. When the spring (15) is in the initial position without deformation, the square slider (14) is located in the middle section of the groove. The positioning cylinder (12) is divided into two sections and is respectively located inside and outside the groove. When magnetic adsorption occurs, the positioning cylinder (12) is attracted to the magnetic adsorption type power connection port of the wiring board (2), and the spring (15) stretches to cooperate to complete the magnetic adsorption process. The outer end face of the positioning cylinder (12) is provided with positive and negative electrode columns (13). The magnetic ring in the magnetic ring tool head assembly is connected to one end of the wire. The other end of the wire passes through the outer wall of the magnetic ring tool head assembly and is electrically connected to the positive and negative electrode columns (13). After magnetic adsorption, the magnetic ring is connected to the external power supply through the positive and negative electrode columns (13). The wiring board (2) includes a vertical board (21). A magnetic adsorption type power connection port is arranged on the inner end face at the bottom of the vertical board (21). The magnetic adsorption type power connection port is an arc-shaped groove. The upper end of the arc-shaped groove is arc-shaped and matches the radian of the positioning cylinder (12). The lower end is an open end. The vertical surface groove bottom (22) of the arc-shaped groove is made of magnetic material. Two vertical electrode travel grooves (23) are opened on the vertical surface groove bottom (22). These two electrode travel grooves (23) are parallel and both lower ends are open ends, which are used for the access and electrical connection of the positive and negative electrode columns (13). The two electrode travel grooves (23) are electrically connected to the external power supply through wires arranged inside the board. When magnetic adsorption access occurs, the positive and negative electrode columns (13) are inserted into the two electrode travel grooves (23) to realize the electrical connection of the magnetic ring and the external power supply. When changing the tool head, the magnetic ring tool head assembly drives the power connection port (1) to be pulled out downward, and the positive and negative electrode columns (13) slide out from the lower open ends of the two electrode travel grooves (23) to realize the electrical disconnection of the magnetic ring and the external power supply.

2. The ultrasonic handle with a quick power connection port according to claim 1, characterized in that The positioning cylinder (12) is made of iron.

3. A method for quickly changing the tool head of an ultrasonic tool handle, which is implemented based on the ultrasonic tool handle with a quick power connection port described in claim 2, and is characterized in that, This method includes the following steps: S1. First, the robotic arm disassembles the magnetic ring cutter head assembly vertically. At this time, the positive and negative electrode columns (13) slide downward along the electrode travel slots (23) of the magnetic adsorption power connection port until they are disconnected from the wiring board (2). S2. The spring (15) in the extended state contracts to its initial state. During the contraction process, it pulls the square slider (14), the positioning cylinder (12), and the positive and negative electrode columns (13) to slide along the square lead screw groove (11) towards the magnetic ring cutter head assembly, so that the positive and negative electrode columns (13) are separated from the wiring board (2) and a horizontal working gap is opened. S3. Send the old tool shank and its supporting accessories in the magnetic ring cutter head assembly into the tool magazine. S4. Align the new tool shank and its supporting accessories with the installation position, and the robotic arm connects the new tool shank to the spindle of the ultrasonic tool shank in the vertically upward direction. S5. Rotate the magnetic ring cutter head assembly so that the power connection port (1) approaches the magnetic adsorption power connection port of the wiring board (2) until the vertical surface bottom (22) of the wiring board (2) is aligned and attracted to the positioning cylinder (12) of the power connection port (1), then the positive and negative electrode columns (13) are inserted into the corresponding two electrode travel slots (23) to achieve fast electrical connection.

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