Earphone shell inner hole turning device capable of switching clamping

Abstract

The invention provides an earphone shell inner hole turning device capable of switching clamping, and relates to the technical field of earphone processing and manufacturing, the earphone shell inner hole turning device comprises a device body, a lifting part arranged on one side of the device body, a turning assembly arranged on one side of the lifting part, a multi-cutter collaborative surrounding turning structure and a matched planetary gear transmission structure, a plurality of sets of cutters can efficiently machine inner holes with different diameters at the same time, the cutter changing frequency and the idle stroke time are greatly reduced, the machining efficiency is remarkably improved, a plug-in type limiting structure and an elastic limiting block guarantee stable connection and positioning of the cutters, the stability and reliability of the machining process are guaranteed, a built-in burr removing structure automatically completes burr cleaning through cutter movement, and the machining efficiency is improved. Quality fluctuation caused by manual intervention is avoided, follow-up assembly faults are reduced, the equipment modification cost and the rejection rate are reduced, the high-quality and batch production requirements of the complex inner hole of the earphone shell are met, and efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of headphone processing and manufacturing, and particularly relates to a turning device for the inner hole of a headphone shell with switchable clamping. Background Art

[0002] Precision components such as speakers and circuit boards need to be installed inside the headphone. This requires the inner hole of the headphone shell to have extremely high dimensional accuracy and surface quality. The turning device can precisely control the diameter size parameters of the inner hole through high-precision tools and control systems, control the error within a very small range, meet the assembly requirements of the precision components inside the headphone, ensure tight fit after the components are installed, and avoid problems such as looseness and poor contact caused by dimensional deviation, thereby ensuring the sound quality and functional stability of the headphone.

[0003] For the existing turning device for the inner hole of a headphone shell, first, the headphone shell blank is positioned and clamped in the fixture to ensure stable position during processing; then, a suitable tool is installed and its position and protrusion length are precisely adjusted. During processing, the spindle drives the blank to rotate, and the tool rest drives the tool to move axially and radially according to the program to complete the cutting.

[0004] In the existing turning operation for the inner hole of a headphone shell, since the inner hole of the headphone shell presents a multi-layer annular distribution, and the aperture of each group of hole systems decreases from the center to the outer circle. After each group of hole systems is turned, the machine tool needs to frequently change the tool. This process not only consumes a large amount of time, but also increases the equipment loss and the cost of manual intervention. In addition, after the tool is changed, the tool rest needs to move to the corresponding hole positions along the circumferential direction in turn for processing. The complex path planning and positioning process further lengthens the overall processing cycle, resulting in low turning efficiency and making it difficult to meet the market demand for large-scale and batch production of current headphone products, becoming a key technical problem restricting the efficient processing and manufacturing of headphone shells. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect of low turning efficiency of the existing turning device for the inner hole of a headphone shell. The present invention proposes a turning device for the inner hole of a headphone shell with switchable clamping.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is a turning device for the inner hole of a headphone shell with switchable clamping, which includes a device body, a lifting component arranged on one side of the device body, and a turning component arranged on one side of the lifting component. A guide rail component is arranged on one side of the device body, and a placement component is arranged at the top of the guide rail component. The guide rail component is used to align the headphone shell fixed on the placement component with the cutting tool. The lifting component includes a moving block that reciprocates on one side of the device body. A first micro motor is arranged on one side of the moving block, and a first cutting tool is arranged at the output end of the first micro motor. A third micro motor and a second micro motor are sequentially slidably connected to one side of the moving block, and a third cutting tool and a second cutting tool are respectively arranged at the output ends of the third micro motor and the second micro motor. The diameters of the first cutting tool, the second cutting tool, and the third cutting tool decrease in sequence. A rotating column component is rotatably connected to one side of the lifting component. The rotating column component respectively includes a first rotating column, a second rotating column, and a third rotating column. The first rotating column, the second rotating column, and the third rotating column respectively correspond to the first cutting tool, the second cutting tool, and the third cutting tool. A planetary gear set is arranged on one side of the rotating column component. The second rotating column and the third rotating column and the second cutting tool and the third cutting tool both revolve around the center point of the planetary gear set. A deburring structure reciprocally slides on the top of the placement component, and the deburring structure effectively scrapes off larger burrs.

[0007] Further, a extension plate is arranged on one side of the moving block, a connecting shell is arranged on one side of the extension plate, a fixing plate is arranged at the bottom end of the connecting shell, and the fixing plate is fixedly connected with the first micro motor. A first annular groove and a second annular groove are sequentially formed on the surface of the connecting shell from the center outwards. An annular block one and an annular block two are slidably connected inside the first annular groove and the second annular groove respectively. The annular block one and the annular block two are respectively connected with the second micro motor and the third micro motor.

[0008] Further, a receiving plate is arranged on one side of the lifting component. A groove is formed on the surface of the receiving plate, a rectangular block is slidably connected inside the groove, and a circular shell is arranged on one side of the rectangular block. The circular shell is connected with the planetary gear set.

[0009] Further, the planetary gear set includes a tooth ring arranged inside the circular shell. A planetary gear is meshed and connected to one side of the tooth ring, a sun gear is meshed and connected to one side of the planetary gear, and the planetary gear is connected with the third rotating column.

[0010] Further, the center of the sun gear is connected with the first rotating column, the outer ring of the sun gear is connected with the second rotating column, and the second rotating column and the third rotating column both revolve around the center of the sun gear.

[0011] Further, there are three groups of the plugging structures in total. The round rod of the first group of plugging structures is connected to the first tool, the round rod of the second group of plugging structures is connected to the outer shell of the second micro-motor, and the round rod of the third group of plugging structures is slidably connected to the outer shell of the third micro-motor. The tops of the first rotating column, the second rotating column and the third rotating column are respectively connected to the three groups of plugging structures in one-to-one correspondence.

[0012] Further, a rectangular shell is arranged at the top of the rotating column assembly. A notch is opened inside the rectangular shell. Elastic rods are symmetrically connected inside the notch. A trapezoidal limiting block is arranged at one end of the elastic rod close to the notch. A round rod is arranged on one side of the first tool. A bottom block is arranged at one end of the round rod. A sleeve block is slidably connected to the surface of the round rod. The diameter of the bottom block is larger than the distance between the two limiting blocks.

[0013] Further, the placing component includes a placing plate arranged at the top end of the guide rail component. Support columns are arranged on both sides of the placing plate. The support columns are used to leave a distance between the earphone shell and the top surface of the placing plate. A fixing component is arranged on one side of the placing plate. The fixing component is used to fix the earphone shell.

[0014] Further, the deburring structure includes a lead screw rotatably connected to one side of the placing plate. A gear is arranged on the outer side of the lead screw. A vertical plate is arranged on the other side of the placing plate. A chute is opened on the surface of the vertical plate. A slider is slidably connected inside the chute. A spring is arranged on one side of the slider. One end of the spring away from the slider is connected to the chute. A rack is arranged on the other side of the slider. The rack is meshed with the gear. A pressing plate is arranged at the top end of the rack.

[0015] Further, a moving plate is slidably connected to the surface of the placing plate. The moving plate is threadedly connected to the lead screw. A blade and a deburring brush are arranged at the top end of the moving plate.

[0016] Compared with the prior art, the beneficial effects of the present invention include a device body, a lifting component arranged on one side of the device body, and a turning component arranged on one side of the lifting component. Through the multi-tool collaborative circumferential turning structure and the planetary gear transmission structure, multiple groups of tools can simultaneously perform efficient processing on inner holes with different diameters, greatly reducing the tool change times and the idle stroke time, and significantly improving the processing efficiency. The plug-in type limiting structure and the elastic limiting block ensure the stable connection and positioning of the tools, ensuring the stable and reliable processing process. The built-in deburring structure automatically completes the burr cleaning by using the movement of the tools, avoiding the quality fluctuations caused by manual intervention, reducing the subsequent assembly failures, reducing the equipment transformation cost and the scrap rate, meeting the high-quality and batch production requirements of the complex inner holes of the earphone shell, and having high efficiency. Description of the Drawings

[0017] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 Schematically shows a three-dimensional structural diagram of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention; Figure 2 Schematically shows a three-dimensional structural diagram of a lifting component, a turning component and a ring rail structure of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention; Figure 3 Schematically shows a three-dimensional structural diagram of a turning component of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention; Figure 4 Schematically shows a three-dimensional structural diagram of a ring rail structure of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention; Figure 5 Schematically shows a three-dimensional structural diagram of a plug-in structure and a rotating column component of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention; Figure 6 Schematically shows a three-dimensional sectional structural diagram of a plug-in structure of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention; Figure 7 Schematically shows a three-dimensional structural diagram of a fixing component and a de-spining structure of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention; Figure 8 Schematically shows a three-dimensional unfolded structural diagram of a de-spining structure of a turning device for the inner hole of a headphone shell with switchable clamping according to an embodiment of the present invention.

[0018] Reference numerals in the figure: 1, device body; 2, guide rail component; 3, lifting component; 4, turning component; 41, extension plate; 42, connecting shell; 43, tool component; 431, fixing plate; 432, micro motor I; 433, tool I; 434, annular groove I; 435, annular block I; 436, micro motor II; 437, tool II; 438, annular groove II; 439, annular block II; 4310, micro motor III; 4311, tool III; 5, annular rail structure; 51, receiving plate; 52, groove; 53, rectangular block; 54, circular shell; 55, gear ring; 56, planetary gear; 57, sun gear; 58, rotating column component; 581, rotating column I; 582, rotating column II; 583, rotating column III; 6, placing component; 61, placing plate; 62, support column; 63, fixing component; 7, plugging structure; 71, round rod; 72, sleeve block; 73, bottom block; 74, rectangular shell; 75, notch; 76, elastic rod; 77, limiting block; 9, de-burring structure; 91, pressing plate; 92, rack; 93, gear; 94, lead screw; 95, moving plate; 96, blade; 97, deburring brush. Detailed implementation manners

[0019] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various structural ways and implementation ways that can be mutually replaced. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as all of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0020] According to an embodiment of the present invention in combination with Figure 1-8 shown. A turning device for the inner hole of a headphone shell with switchable clamping, It includes a device body 1, a lifting component 3 arranged on one side of the device body 1, and a turning component 4 arranged on one side of the lifting component 3. A guide rail component 2 is arranged on one side of the device body 1, and a placing component 6 is arranged at the top of the guide rail component 2. The guide rail component 2 is used to align the earphone shell fixed on the placing component 6 with the tool. The lifting component 3 includes a moving block that reciprocates on one side of the device body 1. A first micro motor 432 is arranged on one side of the moving block, and a first tool 433 is arranged at the output end of the first micro motor 432. A third micro motor 4310 and a second micro motor 436 are sequentially and slidably connected to one side of the moving block. The output ends of the third micro motor 4310 and the second micro motor 436 are respectively provided with a third tool 4311 and a second tool 437. The diameters of the first tool 433, the second tool 437, and the third tool 4311 decrease in sequence. A rotating column assembly 58 is rotatably connected to one side of the lifting component 3. The rotating column assembly 58 respectively includes a first rotating column 581, a second rotating column 582, and a third rotating column 583. The first rotating column 581, the second rotating column 582, and the third rotating column 583 respectively correspond to the first tool 433, the second tool 437, and the third tool 4311 one by one. A planetary gear set is arranged on one side of the rotating column assembly 58. The second rotating column 582 and the third rotating column 583 and the second tool 437 and the third tool 4311 both revolve around the center point of the planetary gear set. A deburring structure 9 reciprocally slides on the top of the placing component 6, and the deburring structure 9 effectively scrapes off larger burrs.

[0021] A extension plate 41 is arranged on one side of the moving block. A connecting shell 42 is arranged on one side of the extension plate 41. A fixing plate 431 is arranged at the bottom end of the connecting shell 42, and the fixing plate 431 is fixedly connected to the first micro motor 432. A first annular groove 434 and a second annular groove 438 are sequentially formed on the surface of the connecting shell 42 from the center outwards. A first annular block 435 and a second annular block 439 are respectively slidably connected inside the first annular groove 434 and the second annular groove 438. The first annular block 435 and the second annular block 439 are respectively connected to the second micro motor 436 and the third micro motor 4310, enabling multi-hole turning.

[0022] A receiving plate 51 is arranged on one side of the lifting component 3. A groove 52 is formed on the surface of the receiving plate 51. A rectangular block 53 is slidably connected inside the groove 52. A circular shell 54 is arranged on one side of the rectangular block 53, and the circular shell 54 is connected to the planetary gear set. The planetary gear set includes a ring gear 55 arranged inside the circular shell 54. A planetary gear 56 is meshed and connected to one side of the ring gear 55. A sun gear 57 is meshed and connected to one side of the planetary gear 56. The planetary gear 56 is connected to the third rotating column 583. The center of the sun gear 57 is connected to the first rotating column 581. The outer ring of the sun gear 57 is connected to the second rotating column 582. The second rotating column 582 and the third rotating column 583 both revolve around the center of the sun gear 57, facilitating driving.

[0023] There are a total of three sets of plug-in structures 7. The round rod 71 of the first set of plug-in structures 7 is connected to the cutter 433. The round rod 71 of the second set of plug-in structures 7 is connected to the housing of the second micro-motor 436. The round rod 71 of the third set of plug-in structures 7 is slidably connected to the housing of the third micro-motor 4310. The tops of the first rotating column 581, the second rotating column 582, and the third rotating column 583 are respectively connected to the three sets of plug-in structures 7 in one-to-one correspondence. A rectangular shell 74 is provided at the top of the rotating column assembly 58. A notch 75 is opened inside the rectangular shell 74. Elastic rods 76 are symmetrically connected inside the notch 75. A trapezoidal limiting block 77 is provided at one end of the elastic rod 76 close to the notch 75. A round rod 71 is provided on one side of the cutter 433. A bottom block 73 is provided at one end of the round rod 71. A sleeve block 72 is slidably connected to the surface of the round rod 71. The diameter of the bottom block 73 is greater than the distance between the two limiting blocks 77, which is convenient for fixing.

[0024] The placing component 6 includes a placing plate 61 provided at the top of the guide rail component 2. Support columns 62 are provided on both sides of the placing plate 61. The support columns 62 are used to leave a distance between the earphone shell and the top surface of the placing plate 61. A fixing component 63 is provided on one side of the placing plate 61. The fixing component 63 is used to fix the earphone shell, which is convenient for placing the earphone shell.

[0025] The deburring structure 9 includes a lead screw 94 rotatably connected to one side of the placing plate 61. A gear 93 is provided on the outer side of the lead screw 94. A vertical plate is provided on the other side of the placing plate 61. A chute is opened on the surface of the vertical plate. A slider is slidably connected inside the chute. A spring is provided on one side of the slider. One end of the spring away from the slider is connected to the chute. A rack 92 is provided on the other side of the slider. The rack 92 is meshed with the gear 93. A pressing plate 91 is provided at the top of the rack 92. A moving plate 95 is slidably connected to the surface of the placing plate 61. The moving plate 95 is threadedly connected to the lead screw 94. A blade 96 and a deburring brush 97 are provided at the top of the moving plate 95, ensuring the smoothness of the inner hole surface, not only improving the cleaning efficiency but also avoiding the problem of unstable quality that may be brought about by manual cleaning.

[0026] Specifically, first, the earphone shell to be turned is placed on the two support columns 62 symmetrically arranged at the top of the placing plate 61 through an external feeding structure or a robotic arm. Subsequently, the fixing component 63 inside the placing plate 61 is started to position and fix the earphone shell. The fixing component 63 includes a bidirectional motor installed in the placing plate 61. The motor drives the two side screws to be threadedly engaged with the sleeves. The sleeves slide along the rod body connected to the inner wall of the placing plate 61, so that the sleeves moving in opposite directions drive the long plates to clamp the earphone shell. This fixing method is an existing technology and can also be replaced by other bidirectional moving structures, enhancing the versatility and adaptability of the equipment and reducing the equipment transformation cost caused by the shape change of the earphone shell. After the earphone shell is fixed, the driving guide rail component 2 adjusts the position of the placing plate 61 to align the center of the earphone shell with the first cutter 433. Then, the lifting component 3 on one side of the device body 1 is started. This component is driven by a servo motor, and the threaded rod is threadedly connected with the moving block to achieve up and down movement. The moving block slides along the slide rod. Similarly, the lifting component 3 can also be replaced by other lifting structures. The cooperation between the guide rail component 2 and the lifting component 3 can achieve precise positioning and height adjustment of the placing plate 61 in space, ensuring that the earphone shell is in the best processing position. By precisely controlling the movement of the lifting component 3 by the servo motor, the relative position error between the cutter and the earphone shell can be controlled within a very small range, providing a stable foundation for subsequent turning processing, effectively improving the processing accuracy and consistency of turning, and reducing the rejection rate caused by position deviation; The lifting component 3 drives the extension plate 41, and then drives the connection shell 42 and the cutter assembly 43 to move downward, so that the first group of round rods 71 connected to the outside of the first cutter 433 in the cutter assembly 43, the second group of round rods 71 fixed to one side of the second cutter 437, and the third group of round rods 71 slidably connected to one side of the third cutter 4311 move downward synchronously and are inserted and fixed with the corresponding rectangular shells 74 on the rotating column assembly 58. The bottom blocks 73 at the bottom ends of the round rods 71 are inserted into the notch 75 of the rectangular shell 74 and contact the limit blocks 77 connected by elastic rods 76 on both sides of the rectangular shell 74. When the two trapezoidal limit blocks 77 are inserted, they are squeezed by the arc surface of the bottom block 73 and move to both sides through the elastic rods 76. When the bottom block 73 is completely inserted, the limit blocks 77 rebound above the plane of the bottom block 73 and limit it in the notch 75, realizing the stable connection between the cutter assembly 43 and the rotating column assembly 58. There is no need for complex installation tools and cumbersome operation processes, greatly shortening the tool installation and replacement time. At the same time, the design of the elastic limit blocks 77 can adapt to slight vibrations and displacements under different working conditions, ensuring that the cutter always maintains precise positioning during high-speed rotation and frequent lifting, effectively improving the stability and reliability of the equipment operation, and ensuring the continuity and efficiency of turning processing. When it is necessary to prevent the round rods 71 and the bottom blocks 73 of the plug-in structure 7 from being limited by the limit blocks 77, a secondary driving force is used to make the sleeve blocks 72 slidably connected to the surface of the round rods 71 contact the limit blocks 77. The sleeve blocks 72 are composed of two symmetrically spliced frustum cones, so that the limit blocks 77 in the rectangular shell 74 will be squeezed back into the inside of the notch 75 by the arc surface of a frustum cone in the rectangular shell 74. The pointed ends of the limit blocks 77 slide past the splicing point of the two frustum cones and contact the inclined surface of the other frustum cone, and then the round rods 71 are separated from the limit blocks 77 by moving the lifting component 3 upward; So far, the first tool 433, the second tool 437 and the third tool 4311 can reciprocate up and down with the lifting member 3, which is convenient for turning the inner hole of the earphone shell. At the same time, it is also beneficial for the second tool 437 and the third tool 4311 to move around the center of the sun gear 57. During the circumferential movement, the opening operation is completed by moving up and down through the lifting member 3. The coordinated lifting and circumferential movement of multiple tools break through the limitation of traditional single-tool hole-by-hole machining, and can process the inner holes at different positions and with different sizes in the earphone shell at the same time, significantly reducing the idle stroke time of the tool and the number of tool changes, greatly improving the machining efficiency, reducing the cumulative error caused by multiple clamping, and ensuring the position accuracy and size consistency between the inner holes; Subsequently, the first micro-motor 432, the second micro-motor 436 and the third micro-motor 4310 are started respectively to drive the first tool 433, the second tool 437 and the third tool 4311 to rotate. The first micro-motor 432 is fixed to the connecting shell 42 through the outer fixing plate 431 and is connected to the first rotating column 581. When rotating, it drives the sun gear 57 to rotate. The sun gear 57 meshes with the planetary gear 56, and the planetary gear 56 meshes with the ring gear 55. The ring gear 55 is installed in the circular shell 54. The circular shell 54 reciprocates in the groove 52 of the receiving plate 51 through the rectangular block 53. The receiving plate 51 is fixed to the lifting member 3. The first tool 433 moves down with the lifting member 3 and is inserted into the hollow part of the first rotating column 581. There is a gap between their inner sides, and the center of the earphone shell can be opened when moving up and down reciprocally, realizing the efficient coordination of the tool rotation and the overall structure movement, being able to accurately transmit the power of the micro-motor to each tool, ensuring the stability and reliability of the tool during high-speed rotary cutting. At the same time, the rotation speed and direction of the tool can be flexibly adjusted through gear transmission to meet the diverse requirements of different materials and different machining processes for the tool rotation speed, improving the machining quality and efficiency; The second micro-motor 436 drives the second tool 437 to rotate. The circular rod 71 fixed to one side is connected to the second rotating column 582, but this connection does not drive the second rotating column 582 to rotate. Therefore, the second micro-motor 436, the second tool 437 and the second rotating column 582 surround the center of the sun gear 57. The second micro-motor 436 slides in the first annular groove 434 on the surface of the connecting shell 42 through the first annular block 435 at the top. The second tool 437 moves down with the lifting member 3 and is inserted into the hollow part of the second rotating column 582. There is a gap between their inner sides, and while orbiting around the sun gear 57, it can open equally spaced holes on the outer ring of the earphone shell by moving up and down through the lifting member 3, enabling the second tool 437 to complete the machining of multiple inner holes on the outer ring of the earphone shell in one movement process, avoiding the frequent positioning and movement of the tool between different hole positions in traditional machining, further improving the machining efficiency. While ensuring the flexible orbiting movement of the tool, it effectively limits the radial displacement of the tool, ensuring the stability and machining accuracy of the tool during the machining process, being able to precisely control the position and size of the inner hole, and meeting the machining requirements of the complex inner hole structure of the earphone shell; On one side of the micro-motor three 4310, it is fixed to the rotating column three 583 through the third group of round rods 71. The rotating column three 583 is connected to the planetary gear 56. The planetary gear 56 drives the rotating column three 583 to rotate self - and revolve around the sun gear 57. The micro-motor three 4310 only drives the cutter three 4311 to rotate, and its drive is not interfered. When revolving around the sun gear 57, it slides in the annular groove two 438 on the surface of the connecting shell 42 through the annular block two 439 at the top. The cutter three 4311 moves down with the lifting component 3 and inserts into the hollow part of the rotating column three 583. There is a gap between their inner sides. While revolving around the center of the sun gear 57, it can move up and down through the lifting component 3 to equally - spacedly open holes in the outermost ring of the earphone shell, achieving the control of the cutter three 4311 under high - speed rotary cutting and complex revolving motion. By separating the cutter drive from the overall structure motion, it avoids the mutual interference between different motions, ensures that the cutter can stably and efficiently complete the machining of the inner holes in the outermost ring, guarantees the machining accuracy of the cutter under complex motion trajectories, can meet the high - precision and high - consistency machining requirements of the inner holes in the outermost ring of the earphone shell, and improves the overall quality of the product; The cutter assembly 43 reciprocates with the lifting component 3. After the cutter one 433 opens a hole in the center of the earphone shell, it reciprocates in the central inner hole, presses down the pressing plate 91. The pressing plate 91 drives the rack 92 to slide in the vertical plate chute fixed to the placing plate 61, stretching the spring to store energy. When the rack 92 moves, it meshes with the gear 93, driving the lead screws 94 on both sides of the gear 93 to rotate. The lead screws 94 drive the moving plate 95 to move. The bottom end of the moving plate 95 is in sliding contact with the surface of the placing plate 61, and the blade 96 and deburring brush 97 at its top scrape and clean the burrs generated by opening holes in the inner side of the earphone shell, realizing the integration of inner hole machining and burr cleaning. The blade 96 can quickly and effectively scrape off larger burrs, and the deburring brush 97 can further clean the residual debris and fine burrs, ensuring the smoothness of the inner hole surface. It not only improves the cleaning efficiency but also avoids the problem of unstable quality that may be brought by manual cleaning, reduces subsequent assembly failures caused by burr residues, improves the qualified rate and reliability of the product, and reduces production costs and after - sales maintenance costs.

[0027] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above - mentioned embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A turning device for the inner hole of a headphone shell with switchable clamping, characterized in that, It includes a device body, a lifting component arranged on one side of the device body, and a turning component arranged on one side of the lifting component. A guide rail component is arranged on one side of the device body, and a placing component is arranged at the top of the guide rail component. The guide rail component is used to align the earphone shell fixed on the placing component with the tool. The lifting component includes a moving block reciprocating on one side of the device body. A first micro motor is arranged on one side of the moving block, and a first tool is arranged at the output end of the first micro motor. A third micro motor and a second micro motor are sequentially slidably connected to one side of the moving block, and a third tool and a second tool are respectively arranged at the output ends of the third micro motor and the second micro motor. The diameters of the first tool, the second tool, and the third tool decrease in sequence. A rotating column component is rotatably connected to one side of the lifting component. The rotating column component respectively includes a first rotating column, a second rotating column, and a third rotating column. The first rotating column, the second rotating column, and the third rotating column respectively correspond to the first tool, the second tool, and the third tool one by one. A planetary gear set is arranged on one side of the rotating column component. The second rotating column and the third rotating column and the second tool and the third tool respectively revolve around the center point of the planetary gear set. A deburring structure reciprocally slides on the top of the placing component, and the deburring structure effectively scrapes off larger burrs.

2. The inner hole turning device for a switchable clamping earphone shell according to claim 1, wherein A extension plate is arranged on one side of the moving block, a connecting shell is arranged on one side of the extension plate, a fixing plate is arranged at the bottom end of the connecting shell, and the fixing plate is fixedly connected with the first micro motor. A first annular groove and a second annular groove are sequentially opened on the surface of the connecting shell from the center to the outside. An annular block one and an annular block two are respectively slidably connected inside the first annular groove and the second annular groove, and the annular block one and the annular block two are respectively connected with the second micro motor and the third micro motor.

3. The turning device for the inner hole of the headphone shell with switchable clamping according to claim 1, wherein, A receiving plate is arranged on one side of the lifting component, a groove is opened on the surface of the receiving plate, a rectangular block is slidably connected inside the groove, and a circular shell is arranged on one side of the rectangular block. The circular shell is connected with the planetary gear set.

4. The inner hole turning device for a switchable clamping earphone shell according to claim 1, wherein, The planetary gear set includes a tooth ring arranged inside the circular shell. A planetary gear is meshed and connected to one side of the tooth ring, a sun gear is meshed and connected to one side of the planetary gear, and the planetary gear is connected with the third rotating column.

5. The turning device for the inner hole of the earphone shell with switchable clamping according to claim 4, characterized in that, The center of the sun gear is connected with the first rotating column, the outer ring of the sun gear is connected with the second rotating column, and the second rotating column and the third rotating column respectively revolve around the center of the sun gear.

6. The turning device for the inner hole of the headphone shell with switchable clamping according to claim 1, characterized in that, A plugging structure is arranged at the top of the rotating column component. There are three groups of plugging structures in total. The round rod of the first group of plugging structures is connected with the first tool, the round rod of the second group of plugging structures is connected with the outer shell of the second micro motor, and the round rod of the third group of plugging structures is slidably connected with the outer shell of the third micro motor. The tops of the first rotating column, the second rotating column, and the third rotating column are respectively connected with the three groups of plugging structures one by one.

7. The turning device for the inner hole of the headphone shell with switchable clamping according to claim 1, wherein, A rectangular shell is arranged at the top of the rotating column component. A notch is opened inside the rectangular shell, elastic rods are symmetrically connected inside the notch, a trapezoidal limiting block is arranged at one end of the elastic rod close to the notch. A round rod is arranged on one side of the first tool, a bottom block is arranged at one end of the round rod, a sleeve block is slidably connected on the surface of the round rod, and the diameter of the bottom block is larger than the distance between the two limiting blocks.

8. The turning device for the inner hole of the earphone shell with switchable clamping according to claim 1, characterized in that, The placement component includes a placement plate provided at the top end of the guide rail component. Support columns are provided on both sides of the placement plate, and the support columns are used to leave a distance between the earphone shell and the top surface of the placement plate. A fixing component is provided on one side of the placement plate, and the fixing component is used to fix the earphone shell.

9. The turning device for the inner hole of the headphone shell with switchable clamping according to claim 8, wherein, The deburring structure includes a lead screw rotatably connected to one side of the placement plate. A gear is provided on the outer side of the lead screw. A vertical plate is provided on the other side of the placement plate. A chute is formed on the surface of the vertical plate. A slider is slidably connected inside the chute. A spring is provided on one side of the slider, and the end of the spring away from the slider is connected to the chute. A rack is provided on the other side of the slider, and the rack is meshed with the gear. A pressing plate is provided at the top end of the rack.

10. The inner hole turning device for a switchable clamping earphone shell according to claim 9, characterized in that, A moving plate is slidably connected to the surface of the placement plate. The moving plate is threadedly connected to the lead screw. A blade and a deburring brush are provided at the top end of the moving plate.

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