Main shaft capable of protecting wire joint

Abstract

The utility model relates to the technical field of machining, and discloses a main shaft capable of protecting a wire joint, which comprises a main shaft body, a shaft core, a power supply module, a power receiving module, a transducer assembly and a wire, a shaft core is arranged in the main shaft body, and a transducer assembly is arranged at the end part of the shaft core; a power supply module and a power receiving module are oppositely arranged in the main shaft body, and the power supply module and the power receiving module are arranged on the surface of the shaft core; the power supply module is connected with an external ultrasonic power source through a wire, and the power receiving module is connected with the transducer assembly through a wire. The main shaft further comprises a wire joint protection structure which is used for protecting the wire joint. According to the utility model, the storage of the connecting wires is realized, wire ends are prevented from being stacked in the cavity of the shaft core where the vibrator is located, the wire joints are protected, and the structure is simple and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, and more specifically, particularly relates to a main shaft capable of protecting a wire joint. Background Art

[0002] Ultrasonic machining is widely used in the machining of non-metallic, hard and brittle materials that are difficult to machine, as well as in the machining of tiny holes and deep holes, because the tool tip has ultrasonic energy. The ultrasonic spindle transmits wireless power through the gap between the power supply module and the power receiving module. The power supply module and the vibrator need to be connected by wires when transmitting power, and the power receiving module and the external ultrasonic power supply also need to be connected by wires. However, after the shaft core and the vibrator are assembled, the wire joints are easily piled up and compressed, which can easily cause short circuits or leakage, affecting the reliability of the overall operation of the spindle. Summary of the invention

[0003] The utility model aims to solve the technical problems existing in the prior art and provide a main shaft capable of protecting wire joints, which can store wires, avoid wire accumulation and protect wire joints.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] The utility model provides a main shaft capable of protecting a wire joint, comprising a main shaft body, a shaft core, a power supply module, a power receiving module, a transducer assembly and a wire;

[0006] An axial core is arranged in the main shaft body, and a transducer assembly is arranged at the end of the axial core; a power supply module and a power receiving module are arranged relatively in the main shaft body, and the power supply module and the power receiving module are arranged on the surface of the axial core; the power supply module and the external ultrasonic power supply, and the power receiving module and the transducer assembly are respectively connected through wires; the main shaft also includes a wire joint protection structure for protecting the wire joint.

[0007] Furthermore, the power supply module includes a power supply shell and a power supply unit arranged in the power supply shell, and the power receiving module includes a power receiving shell and a power receiving unit arranged in the power receiving shell, and the power supply unit and the power receiving unit are positioned correspondingly and spaced apart.

[0008] Furthermore, the power supply module and the power receiving module are both arranged along the axial direction of the shaft core, and the power supply module is located on the side of the power receiving module away from the transducer assembly; a wire storage groove is provided on the end face of the power receiving shell away from the power supply shell, and a wire passing groove connected to the wire storage groove is provided on the side wall of the power receiving shell.

[0009] Furthermore, the wire storage groove is an annular groove arranged along the circumference of the power receiving housing.

[0010] Furthermore, a first side wall and a second side wall are formed on the power receiving shell on both sides of the wire storage groove, and the wire passing groove is correspondingly arranged on the first side wall and the second side wall; and the second side wall and the bottom wall of the wire storage groove are respectively provided with wire outlets.

[0011] Furthermore, the power supply module and the power receiving module are arranged along the radial direction of the shaft core, and the power receiving module is close to the axis of the shaft core; a wire storage groove connected to the inner cavity of the power receiving shell is provided on the side wall of the power receiving shell, and the cross-section of the wire storage groove perpendicular to the axis of the power receiving shell is a U-shaped structure, and the side wall of the wire storage groove and the inner cavity of the power receiving shell form a wire passing channel.

[0012] Furthermore, a wire outlet hole communicating with the wire storage groove and the power receiving unit is also provided on the side wall of the power receiving housing.

[0013] Furthermore, the side walls of the main shaft body are respectively provided with a first radial wire passing groove, a second radial wire passing groove, an axial wire passing groove and a wire passing recess, the axial wire passing groove is respectively connected to the first radial wire passing groove and the wire passing recess, and the wire passing recess is connected to the second radial wire passing groove.

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

[0015] The utility model provides a wire joint protection structure in the main shaft to store the wires connected between the power receiving module and the transducer assembly, thereby avoiding the accumulation of wire ends in the cavity of the shaft core where the vibrator is located, thereby protecting the wire joints. The structure is simple and reliable, and the reliability of the overall operation of the main shaft can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 This is a structural diagram of Example 1 of the main shaft capable of protecting the wire connector in the utility model.

[0018] Figure 2 It is a schematic diagram of the power receiving shell in the first example of the main shaft of the utility model.

[0019] Figure 3 This is a structural diagram of a second main shaft example capable of protecting a wire connector in the utility model.

[0020] Figure 4 It is a schematic diagram of the power receiving shell in the second main shaft example of the utility model.

[0021] Figure 5 It is a schematic diagram of the main shaft body in the utility model.

[0022] Figure 6 It is the front view of the main shaft body in the utility model.

[0023] Among them, 1-spindle body, 2-axis core, 3-power supply module, 4-power receiving module, 5-transducer assembly, 11-first wire groove, 21-second wire groove, 31-power supply shell, 32-power supply unit, 41-power receiving shell, 42-power receiving unit, 61-first wire, 62-second wire, 411-wire storage groove, 412-wire groove, 401-first side wall, 402-second side wall, 413-wire outlet, 414-wire storage groove, 415-wire channel, 416-wire outlet hole, 101-first radial wire groove, 102-second radial wire groove, 103-axial wire groove, 104-wire recess, 7-front bearing group, 8-rear bearing group. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] See also Figure 1 As shown, the utility model provides a main shaft capable of protecting a wire joint, comprising a main shaft body 1, a shaft core 2, a power supply module 3, a power receiving module 4, a transducer assembly 5, and a wire;

[0028] The spindle body 1 is provided with an axis core 2, and a transducer assembly 5 is provided at the end of the axis core 2; the spindle body 1 is provided with a power supply module 3 and a power receiving module 4, which are sleeved on the surface of the axis core 2, i.e., the outer circumference. The power supply module 3 is connected to an external ultrasonic power source, and the power receiving module 4 is connected to the transducer assembly 5, respectively, through wires. The spindle also includes a wire joint protection structure for protecting the wire joint.

[0029] Specifically, the side wall of the spindle body 1 is provided with a first wire groove 11 that is connected in the axial and radial directions, and a first wire 61 is passed through the first wire groove 11, and the first wire 61 connects the power supply module 3 with the external ultrasonic power supply; the side wall of the shaft core 2 is provided with a second wire groove 21 in the axial direction, and a second wire 62 is passed through the second wire groove 21, and the second wire 62 connects the power receiving module 4 with the transducer assembly 5; by providing the first wire groove 11 and the second wire groove 21, the first wire 61 and the second wire 62 are conveniently passed through, and the wire joints are protected by providing a wire joint protection structure to ensure the reliability of power transmission in the spindle.

[0030] Furthermore, the power supply module 3 includes a power supply housing 31 and a power supply unit 32 disposed in the power supply housing 31, and the power receiving module 4 includes a power receiving housing 41 and a power receiving unit 42 disposed in the power receiving housing 41, and the positions of the power supply unit 32 and the power receiving unit 42 correspond to each other. By arranging the power supply unit 32 and the power receiving unit 42 relative to each other and with a gap, the structures of the two are simple, and wireless energy transmission can be reliably realized.

[0031] In one embodiment of the present utility model, continue to refer to Figure 1 As shown, the power supply module 3 and the power receiving module 4 are both arranged along the axial direction of the shaft core 2, and the power supply module 3 is located on the side of the power receiving module 4 away from the transducer assembly 5, that is, the main shaft adopts axial power supply, which can save radial installation space of the main shaft body 1.

[0032] See also Figure 2 As shown, a wire storage groove 411 is provided on the end face of the power receiving shell 41 facing away from the power supply shell 31, so that the wire between the power receiving module 4 and the transducer assembly 5, i.e., the second wire 62, is stored in the wire storage groove 411, thereby protecting the wire ends; a wire passing groove 412 connected to the wire storage groove 411 is provided on the side wall of the power receiving shell 41, so that the second wire 62 can pass through the winding and connect the power receiving unit 42 and the transducer assembly 5.

[0033] Furthermore, the wire storage groove 411 is an annular groove arranged along the circumference of the power receiving housing 41 , which has a simple structure, is easy to process, and can facilitate the winding and storage of the second wire 62 .

[0034] Furthermore, the power receiving housing 41 forms a first side wall 401 and a second side wall 402 on both sides of the wire storage groove 411, and the wire passing groove 412 is correspondingly arranged on the first side wall 401 and the second side wall 402, and the wire passing groove 412 is an arc-shaped recessed portion arranged along the axial direction of the power receiving housing 41, which facilitates the reliable passage of the first wire 61. Specifically, the shape and number of the wire passing groove 412 can be selected according to actual needs.

[0035] Furthermore, the second side wall 402 of the power receiving housing 41 and the bottom wall of the wire storage slot 411 are also provided with a wire outlet 413, which facilitates the second wire 62 to pass through and reliably connect the power receiving unit 42 and the transducer assembly 5. Specifically, the number of the wire outlets 413 can also be increased or decreased according to the size of the power receiving housing 41.

[0036] In another embodiment of the present invention, refer to Figure 3 and Figure 4 As shown, the power supply module 3 and the power receiving module 4 are arranged along the radial direction of the shaft core 2, which can reduce the axial size of the spindle body 1 while ensuring the efficiency of power transmission, and can adapt to spindles of different sizes. The power receiving module 4 is close to the axis of the shaft core 2, and the power supply module 3 is located on the side of the power receiving module 4 away from the axis of the shaft core 2. The positions of the power supply unit 32 and the power receiving unit 42 correspond to each other and are arranged at intervals.

[0037] A wire storage groove 414 communicating with the inner cavity of the power receiving shell 41 is provided on the side wall of the power receiving shell 41. The cross section of the wire storage groove 414 perpendicular to the axis of the power receiving shell 41 is a U-shaped structure. The side wall of the wire storage groove 414 and the inner cavity of the power receiving shell 41 form a wire passage 415, which can save space and facilitate the storage of the second wire 62.

[0038] Specifically, Figure 4As shown in the figure, the wire storage groove 414 is an arc-shaped groove arranged along the circumference of the power receiving shell 41, the bottom of the wire storage groove 414 is an arc-shaped recessed portion, and one end of the top forms the wire passing channel 415 with the inner cavity of the power receiving shell 41, which is convenient for processing and also convenient for the second wire 62 to be stored in the wire storage groove 414.

[0039] Furthermore, a wire outlet hole 416 connecting the wire storage groove 414 and the power receiving unit 42 is also provided on the side wall of the power receiving shell 41, so as to facilitate the second wire 62 in the wire storage groove 414 to pass out and enable the second wire 62 to reliably connect the power receiving unit 42 and the transducer assembly 5.

[0040] For further information, see Figure 5 and Figure 6 As shown, the side wall of the spindle body 1 is respectively provided with a first radial wire groove 101, a second radial wire groove 102, and an axial wire groove 103, and the axial wire groove 103 is respectively connected with the first radial wire groove 101 and the second radial wire groove 102, so as to facilitate the first wire 61 to pass through and connect the power supply unit 32 and the external ultrasonic power supply. In other embodiments, in order to facilitate the insertion of the first wire 61, the side wall of the spindle body 1 is provided with a wire groove 104, and the wire groove 104 is respectively connected with the axial wire groove 103 and the second radial wire groove 102.

[0041] Furthermore, the wire-passing recess 104 is a strip groove axially arranged along the main shaft body 1 , which has a simple structure and is convenient for processing. In other embodiments, the wire-passing recess 104 may also adopt other structural forms, all of which can facilitate the passage of the first wire 61 .

[0042] In the utility model, a front bearing group 7 and a rear bearing group 8 are also provided in the main shaft body 1. The front bearing group 7 and the rear bearing group 8 are respectively sleeved on the outer periphery of the shaft core 2 and are respectively placed on both sides of the power supply module 3 and the power receiving module 4, so that the overall structure of the main shaft is compact and the transmission efficiency of the power supply module 3 and the power receiving module 4 can be ensured.

[0043] The utility model provides a spindle capable of protecting a wire joint. For the two modes of axial power supply and radial power supply of the spindle, a wire joint protection structure is arranged on the power receiving shell 41. The wire joint protection structure adopts a wire storage groove 411 or a wire storage groove 414 to store the second wire 62, so as to avoid the wire ends from being accumulated in the cavity of the shaft core 2 where the transducer assembly 5 is located. After assembly, the wire ends are pulled out of the transducer assembly 5 and connected from the wire groove 412 or the wire channel 415 between the shaft core 2 and the power receiving module 4. The structure is simple and reliable, and the reliability of the overall operation of the spindle can be ensured.

[0044] 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 spindle capable of protecting a wire joint, characterized in that: It includes a main shaft body, a shaft core, a power supply module, a power receiving module, a transducer assembly and a wire; An axial core is arranged in the main shaft body, and a transducer assembly is arranged at the end of the axial core; a power supply module and a power receiving module are arranged relatively in the main shaft body, and the power supply module and the power receiving module are arranged on the surface of the axial core; the power supply module and the external ultrasonic power supply, and the power receiving module and the transducer assembly are respectively connected through wires; the main shaft also includes a wire joint protection structure for protecting the wire joint.

2. The main shaft capable of protecting a wire joint according to claim 1, characterized in that: The power supply module includes a power supply housing and a power supply unit disposed in the power supply housing. The power receiving module includes a power receiving housing and a power receiving unit disposed in the power receiving housing. The power supply unit and the power receiving unit are disposed in corresponding positions and spaced apart.

3. The main shaft capable of protecting a wire joint according to claim 2, characterized in that: The power supply module and the power receiving module are both arranged along the axial direction of the shaft core, and the power supply module is located on the side of the power receiving module away from the transducer assembly; a wire storage groove is arranged on the end surface of the power receiving shell away from the power supply shell, and a wire passing groove connected to the wire storage groove is arranged on the side wall of the power receiving shell.

4. The main shaft capable of protecting a wire joint according to claim 3, characterized in that: The wire storage groove is an annular groove arranged along the circumference of the power receiving housing.

5. The main shaft capable of protecting a wire joint according to claim 3, characterized in that: The power receiving housing is provided with a first side wall and a second side wall on both sides of the wire storage groove, and the wire passing groove is correspondingly arranged on the first side wall and the second side wall; the second side wall and the bottom wall of the wire storage groove are respectively provided with wire outlets.

6. The main shaft capable of protecting a wire joint according to claim 2, characterized in that: The power supply module and the power receiving module are arranged along the radial direction of the shaft core, and the power receiving module is close to the axis of the shaft core; a wire storage groove connected to the inner cavity of the power receiving shell is provided on the side wall of the power receiving shell, and the cross-section of the wire storage groove perpendicular to the axis of the power receiving shell is a U-shaped structure, and the side wall of the wire storage groove and the inner cavity of the power receiving shell form a wire passing channel.

7. The main shaft capable of protecting a wire joint according to claim 6, characterized in that: A wire outlet hole communicating with the wire storage groove and the power receiving unit is also arranged on the side wall of the power receiving housing.

8. The main shaft capable of protecting a wire joint according to any one of claims 1 to 7, characterized in that: The side walls of the main shaft body are respectively provided with a first radial wire passing groove, a second radial wire passing groove, an axial wire passing groove and a wire passing recess, the axial wire passing groove is respectively connected to the first radial wire passing groove and the wire passing recess, and the wire passing recess is connected to the second radial wire passing groove.

Images