Ultrasonic longitudinal vibration type machining device for gear

Abstract

The utility model relates to the technical field of gear machining, and discloses a gear ultrasonic longitudinal vibration type machining device which comprises a cutter handle body, an energy transmission assembly, an amplitude-change pole, a transducer assembly and a gear cutter, one end of the cutter handle body is a mounting part, the other end of the cutter handle body is provided with a containing cavity, and the energy transmission assembly is arranged on the periphery of the cutter handle body; the amplitude-change pole is partially arranged in the accommodating cavity and is connected with the end part of the knife handle body; the transducer assembly is arranged on the amplitude-change pole and is connected with the energy transmission assembly; the gear cutter is arranged at the end of the amplitude-change pole and can vibrate longitudinally. The machining precision of the gear can be improved, abrasion of a gear cutter can be reduced, and the service life of the gear cutter can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, and more specifically, to a gear ultrasonic longitudinal vibration processing device. Background Art

[0002] With the continuous development of automobiles, ships, aerospace and other fields, the performance and processing quality requirements of mechanical parts are getting higher and higher. Mechanical parts are developing towards high precision, high strength and low density, which puts more stringent requirements on processing equipment. Take gears as an example. Gears refer to mechanical parts that can mesh with each other and have teeth. They are widely used in mechanical transmission and the entire mechanical field. Gear transmission has the advantages of high precision, wide application range and high transmission efficiency.

[0003] Common gear processing methods include gear hobbing, gear milling, and gear slotting. That is, the gear to be processed is cut out by reciprocating up and down the tool gear. The processed gear usually needs to be ground, polished, or honed to improve the surface quality of the gear and meet the use requirements under complex working conditions. When the tool gear is processing the gear to be processed, the large cutting force will accelerate the wear of the tool gear, resulting in a decrease in processing accuracy. Summary of the invention

[0004] The utility model aims to solve the technical problems existing in the prior art and provide a gear ultrasonic longitudinal vibration processing device, which can improve the processing accuracy, reduce the wear of the gear tool and extend its service life.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] The utility model provides a gear ultrasonic longitudinal vibration processing device, comprising a tool handle body, an energy transmission component, a horn, a transducer component and a gear cutter;

[0007] One end of the handle body is a mounting portion, and the other end has a receiving cavity, and an energy transmission component is arranged on the periphery of the handle body; the amplitude change rod part is arranged in the receiving cavity and connected to the end of the handle body; the transducer component is arranged on the amplitude change rod and connected to the energy transmission component;

[0008] The gear cutter is arranged at the end of the amplitude transformer and can vibrate longitudinally.

[0009] Furthermore, a mounting protrusion is provided on the outer periphery of the tool handle body, a mounting groove is provided on the mounting protrusion along the axial direction, the opening of the mounting groove faces the gear tool, and the energy transmission component is arranged in the mounting groove.

[0010] Furthermore, a multi-stage connection protrusion is provided on the outer periphery of the amplitude changing rod, and the connection protrusion is installed and matched with the end of the handle body and is set as the vibration zero point.

[0011] Furthermore, the amplitude changing rod has a main body, the gear cutter is arranged at the end of the main body, and there is an arc transition between the main body and the connecting protrusion.

[0012] Furthermore, the overall axial dimension of the shank body is L2, and the axial dimension of the main body is L3, satisfying: L3=n1×L2, 0<n1<1.

[0013] Furthermore, the maximum radial dimension of the shank body is D1, and the radial dimension of the main body is D2, satisfying: D2=n2×D1, 0<n2<4.

[0014] Furthermore, the gear cutter includes a connecting portion and a machining tooth portion, the connecting portion is connected to the amplitude changing rod, and the machining tooth portion is arranged on the outer periphery of the end portion of the connecting portion.

[0015] Furthermore, the radial dimension of the main body is D2, and the radial dimension of the connecting portion is D3, satisfying: D2=n3×D3, 0.5<n3<4.

[0016] Furthermore, the helix angle α of the processed tooth portion is 1°≤α≤15°.

[0017] Furthermore, the direction of the helix angle on the processed tooth portion is forward or reverse, or is arranged parallel to the axis of the amplitude transformer.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] In the utility model, the gear cutter is arranged at the end of the amplitude varying rod. The longitudinal vibration generated by the transducer assembly is amplitude varied by the amplitude varying rod and then transmitted to the gear cutter, thereby driving the gear cutter to perform stable ultrasonic vibration and act on the gear to be processed. The processing accuracy of the gear can be improved, the wear of the gear cutter can be reduced, and the service life of the gear cutter can be extended. The overall structure is simple, and the working performance is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the scheme of the utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 It is the overall structure diagram of the gear ultrasonic longitudinal vibration processing device of the utility model.

[0022] Figure 2 It is a cross-sectional view of the gear ultrasonic longitudinal vibration processing device of the utility model.

[0023] Figure 3 It is a right view of the gear ultrasonic longitudinal vibration processing device of the utility model.

[0024] Figure 4 It is a parameter diagram of the gear ultrasonic longitudinal vibration processing device of the utility model.

[0025] Among them, 10-handle body, 11-installation part, 101-accommodation cavity, 102-installation protrusion, 12-energy transmission component, 20-amplitude transformer, 21-transducer component, 22-connection protrusion, 201-main body, 30-gear tool, 31-connection part, 32-processing tooth part. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0027] The terms "including" and "having" and any variations thereof in the specification and claims of the utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as "connected to" another element, it may be directly or indirectly connected to the other element.

[0028] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] See also Figure 1 As shown, the utility model provides a gear ultrasonic longitudinal vibration processing device, including a tool handle body 10, an energy transmission component 12, a horn 20, a transducer component 21, and a gear cutter 30;

[0030] One end of the tool handle body 10 is a mounting portion 11 , and the mounting portion 11 is mounted in cooperation with a machine tool or a spindle; the other end of the tool handle body 10 has a receiving cavity 101 , and an energy transmission component 12 is disposed on the periphery of the tool handle body 10 .

[0031] The amplitude converter 20 is partially disposed in the accommodating cavity 101 of the shank body 10 and connected to the end of the shank body 10 ; the transducer assembly 21 is disposed on the amplitude converter 20 , the transducer assembly 21 is placed in the accommodating cavity 101 and connected to the energy transmission assembly 12 .

[0032] The gear cutter 30 is disposed at the end of the amplitude transformer 20 , and can perform longitudinal vibration gear processing under the action of the transducer assembly 21 .

[0033] In this embodiment, the gear cutter 30 is arranged at the end of the amplitude transformer 20, the energy transmission component 12 is connected to an external ultrasonic power supply, the transducer component 21 generates longitudinal vibration and transmits it to the gear cutter 30 after the amplitude transformer 20 performs amplitude transformation, thereby driving the gear cutter 30 to perform longitudinal vibration gear processing, thereby improving the processing accuracy and extending the service life of the tool.

[0034] Furthermore, a mounting protrusion 102 is provided on the outer periphery of the shank body 10, and a mounting groove is provided on the mounting protrusion 102 along the axial direction, and the opening of the mounting groove faces the gear tool 30, and the energy transmission component 12 is arranged in the mounting groove, that is, the energy transmission component 12 is located on the side of the mounting protrusion 102 close to the gear tool 30.

[0035] It is understandable that the opening of the mounting groove can also be set toward the mounting portion 11. In the present embodiment, the energy transmission component 12 is located on the side of the mounting protrusion 102 close to the gear tool 30. In this way, when the energy transmission component 12 transmits energy with the external transmitting component, it can avoid interference with the external machine tool, thereby ensuring the reliability of energy transmission.

[0036] Furthermore, a multi-stage connecting protrusion 22 is provided on the periphery of the amplitude transformer 20, and the connecting protrusion 22 is installed and matched with the end of the handle body 10 and is set as a vibration zero point, thereby ensuring reliable installation between the amplitude transformer 20 and the handle body 10, and avoiding leakage of ultrasonic amplitude, thereby further ensuring the reliability of ultrasonic vibration processing.

[0037] Furthermore, the amplitude transformer 20 has a main body 201, and the gear cutter 30 is disposed at the end of the main body 201. There is an arc transition between the main body 201 and the connecting protrusion 22, which is convenient for installation and connection and ensures the reliability of ultrasonic amplitude transmission.

[0038] Specifically, the transducer assembly 21 and the gear cutter 30 are located at opposite ends of the connecting protrusion 22, which is convenient for installation and connection, and ensures the installation stability and working reliability of the overall structure of the processing device.

[0039] Furthermore, the gear cutter 30 includes a connecting portion 31 and a machining tooth portion 32 . The connecting portion 31 is connected to the amplitude transformer 20 . The machining tooth portion 32 is disposed on the outer periphery of the end of the connecting portion 31 for gear machining.

[0040] Furthermore, the axial dimension of the mounting portion 11 is L1, the overall axial dimension of the shank body 10 is L2, and the maximum radial dimension of the shank body 10 is D1, satisfying the functional relationship L2=n×L1, 0<n≤5, n can be 0.1, 1, 2, 3, 4, 5 or any value within the range, and can ensure that the mounting portion and the external machine tool can be reliably installed without affecting the processing efficiency of the processing device.

[0041] Furthermore, the axial dimension of the main body 201 is L3, satisfying the functional relationship L3=n1×L2, 0<n1<1, n1 can take a value of 0.2, 0.4, 0.5, 0.7, 0.9 or any value within the range, so that the longitudinal vibration generated by the transducer assembly 21 can be stably transmitted to the gear tool 30 after being changed in amplitude by the amplitude transformer 20.

[0042] Furthermore, the radial dimension of the main body 201 is D2, satisfying the functional relationship D2=n2×D1, 0<n2<4, n2 can be 0.5, 1, 2, 2.5, 3.5 or any value within the range, so that the longitudinal vibration generated by the transducer assembly 21 can be stably transmitted on the amplitude transformer 20.

[0043] Furthermore, the radial dimension of the connecting portion 31 is D3, D2=n3×D3, 0.5<n3<4, n3 can be 1, 1.5, 2, 2.5, 3.5 or any value within the range, so that the longitudinal vibration generated by the transducer assembly 21 can be stably transmitted on the amplitude transformer 20.

[0044] Furthermore, the helix angle α of the processing tooth portion 32 is 1°≤α≤15°, and the specific value can be 1°, 5°, 10°, 15° or any value within the range. The direction of the helix angle is forward or reverse, or is set parallel to the axis of the amplitude change rod 20, which can ensure the processing accuracy and meet the processing requirements of different gear structures.

[0045] In the utility model, the gear cutter 30 is arranged at the end of the amplitude change rod 20, and the structures of the spiral groove 202, the shank body 10, the amplitude change rod 20 and the gear cutter 30 satisfy the functional relationship and the size range recorded above. It is possible to stably generate longitudinal vibration on the gear cutter 30, thereby improving the accuracy and efficiency of gear processing and meeting different processing requirements.

[0046] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A gear ultrasonic longitudinal vibration processing device, characterized in that: It includes a tool holder body, an energy transmission component, a horn, a transducer component and a gear cutter; One end of the handle body is a mounting portion, and the other end has a receiving cavity, and an energy transmission component is arranged on the periphery of the handle body; the amplitude change rod part is arranged in the receiving cavity and connected to the end of the handle body; the transducer component is arranged on the amplitude change rod and connected to the energy transmission component; The gear cutter is arranged at the end of the amplitude transformer and can vibrate longitudinally.

2. The gear ultrasonic longitudinal vibration machining device according to claim 1, characterized in that: A mounting protrusion is provided on the outer periphery of the tool handle body, a mounting groove is provided on the mounting protrusion along the axial direction, the opening of the mounting groove faces the gear tool, and the energy transmission component is arranged in the mounting groove.

3. The gear ultrasonic longitudinal vibration machining device according to claim 1, characterized in that: The outer periphery of the amplitude changing rod is provided with a multi-stage connection protrusion, and the connection protrusion is installed and matched with the end of the handle body and is set as a vibration zero point.

4. The gear ultrasonic longitudinal vibration machining device according to claim 3, characterized in that: The amplitude change rod has a main body, the gear cutter is arranged at the end of the main body, and there is an arc transition between the main body and the connecting convex part.

5. The gear ultrasonic longitudinal vibration machining device according to claim 4, characterized in that: The overall axial dimension of the shank body is L2, and the axial dimension of the main body is L3, satisfying: L3=n1×L2, 0<n1<1.

6. The gear ultrasonic longitudinal vibration machining device according to claim 4, characterized in that: The maximum radial dimension of the shank body is D1, and the radial dimension of the main body is D2, satisfying: D2=n2×D1, 0<n2<4.

7. The gear ultrasonic longitudinal vibration machining device according to any one of claims 4 to 6, characterized in that: The gear cutter comprises a connecting portion and a machining tooth portion, wherein the connecting portion is connected to the amplitude changing rod, and the machining tooth portion is arranged on the outer periphery of the end portion of the connecting portion.

8. The gear ultrasonic longitudinal vibration machining device according to claim 7, characterized in that: The radial dimension of the main body is D2, and the radial dimension of the connecting portion is D3, which satisfies: D2=n3×D3, 0.5<n3<4.

9. The gear ultrasonic longitudinal vibration machining device according to claim 7, characterized in that: The helix angle α of the machined tooth portion satisfies: 1°≤α≤15°.

10. The gear ultrasonic longitudinal vibration machining device according to claim 7, characterized in that: The helical angle on the processing tooth portion has a rotation direction of positive rotation or negative rotation, or is arranged parallel to the axis of the amplitude transformer.

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