Machining clamp for earphone support

Abstract

The utility model discloses an earphone support machining clamp which comprises a clamping device and a turnover device, the clamping device comprises a mounting plate, a first clamping mechanism and a second clamping mechanism, the first clamping mechanism is used for clamping and positioning a blank workpiece, and the second clamping mechanism is used for clamping a semi-finished workpiece machined by the first clamping mechanism; the first clamping mechanism comprises a first positioning seat, a first pressing plate and a first air cylinder, the first positioning seat is used for positioning a blank workpiece, and the first pressing plate is used for pressing the top surface of the blank workpiece; the second clamping mechanism comprises a second positioning seat, a second pressing plate and a second air cylinder; the second pressing plate is used for pressing the first groove of the semi-finished product workpiece; the turnover device is used for connecting the two ends of the mounting plate and driving the mounting plate to turn over. According to the machining clamp for the earphone support, a plurality of clamping stations can be arranged on the clamp, the earphone support can be turned over to adapt to different machining feeding directions, the types of clamps are reduced, clamping and machining are convenient, and efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially a machining fixture of earphone support. BACKGROUND

[0002] The earphone support is an earphone accessory. In production, the earphone support is formed into a blank workpiece through a metal forming process, and then is machined into an earphone support finished workpiece by using a CNC.

[0003] Structurally, referring to Figure 1 , the earphone support is in the shape of a semicircular ring, the side wall of the earphone support is inclined from top to bottom towards the inner side of the earphone support, the inner side of the earphone support is provided with a first groove 100, an inclined hole 110 located above the first groove 100, and a first boss 120 and a second boss 130 respectively located at the inner side of both ends of the earphone support, the first groove 100 extends along the inner contour of the earphone support, the side wall of the first boss 120 is provided with a second groove 140, the outer side of the earphone support is provided with a third boss 150 arranged obliquely, the third boss 150 is provided with a first through hole 160 penetrating into the first groove 100, in order to ensure the precision of the product, the assembly positions such as the first groove 100, the inclined hole 110, the second groove 140, the top surface of the third boss 150 and the first through hole 160 need to be machined by using a CNC to ensure the shape and size, at the same time, in order to facilitate the positioning of machining, the top surface of the blank workpiece is formed with two outwardly extending process ledges 170, and the bottom of the process ledge 170 is provided with a positioning column 180.

[0004] Because the machining feed directions of different machining positions on the earphone support are different, currently, multiple fixtures need to be used to clamp the earphone support to machine different machining positions.

[0005] However, the machining fixtures of the existing earphone support are of various types, and it is inconvenient and low in efficiency to clamp and machine. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at solving one of the technical problems existing in the prior art. To this end, the utility model provides a machining fixture of earphone support, which can set multiple clamping stations on the fixture and turn over the earphone support to adapt to different machining feed directions, thereby reducing the types of fixtures, facilitating clamping and machining, and improving the efficiency.

[0007] The machining fixture of earphone support according to the utility model embodiment comprises:

[0008] The clamping device comprises a mounting plate, a first clamping mechanism and a second clamping mechanism arranged on the mounting plate, the mounting plate is used for supporting a workpiece, the first clamping mechanism is used for clamping and positioning a blank workpiece, and the second clamping mechanism is used for clamping a semi-finished workpiece machined by the first clamping mechanism;

[0009] The first clamping mechanism includes a first positioning seat, a first pressing plate and a first air cylinder, the first positioning seat is used for positioning the blank workpiece, the first pressing plate is used for pressing the top surface of the blank workpiece, and the first air cylinder rod is used for pressing the first pressing plate, the first clamping mechanism clamps and positions the blank workpiece so that the blank workpiece completes the machining of the first groove, the third boss and the first through hole;

[0010] The second clamping mechanism includes a second positioning seat, a second pressing plate and a second air cylinder, the second positioning seat is used for positioning the semi-finished workpiece, the second pressing plate is used for pressing the first groove of the semi-finished workpiece, and the second air cylinder is used for pressing the second pressing plate, the second clamping mechanism clamps and positions the semi-finished workpiece so that the semi-finished workpiece completes the machining of the inclined hole and the second groove;

[0011] The overturning device is used for connecting two ends of the mounting plate and driving the mounting plate to overturn.

[0012] According to the machining clamp of the earphone support, at least the following beneficial effects are achieved:

[0013] 1. The machining clamp of the earphone support, at least the following beneficial effects are achieved:

[0014] 2. The machining clamp of the earphone support, at least the following beneficial effects are achieved:

[0015] 3. The utility model discloses a second clamping mechanism includes second locating seat, second pressing plate and second air cylinder, and the second locating seat is used for positioning semi-finished product workpiece, and the second pressing plate is used for pressing the first recess of semi-finished product workpiece, and the second air cylinder is used for pressing the second pressing plate, and the second clamping mechanism clamps and positions semi-finished product workpiece to make semi-finished product workpiece complete inclined hole and the processing of second recess, can understand that, place semi-finished product workpiece on mounting plate, and make second locating seat position semi-finished product workpiece, then place second pressing plate on the first recess, so that second pressing plate can avoid the cutter of processing inclined hole, and then use second air cylinder to press second pressing plate, so that now the first recess of the finished product workpiece is padded with second pressing plate, and then uses second air cylinder to press second pressing plate to clamp semi-finished product workpiece, can avoid second air cylinder to press semi-finished product workpiece and directly collide with semi-finished product workpiece, and then, avoid second air cylinder to hurt the finished product workpiece.

[0016] 4. The utility model discloses a turnover device for connecting the both ends of mounting plate and driving mounting plate turnover, so that the turnover device can turnover workpiece, and then, can set up multiple clamping stations on the clamp and turnover workpiece to adapt to different processing feeding direction, reduce the type of clamp, facilitate clamping and processing, improve efficiency.

[0017] According to some embodiments of the utility model, one side of the first pressing plate has a first arc-shaped groove, and the first arc-shaped groove is used for avoiding the cutter for processing the blank workpiece.

[0018] Beneficially, the utility model discloses a first arc-shaped groove on one side of the first pressing plate, and the first arc-shaped groove is used for avoiding the cutter for processing the blank workpiece, so that the first pressing plate does not hinder the cutter for processing the blank workpiece from processing the blank workpiece above the blank workpiece.

[0019] According to some embodiments of the utility model, the mounting plate is provided with a first avoiding through slot penetrating up and down, and the first avoiding through slot is used for avoiding the cutter for processing the blank workpiece.

[0020] Beneficially, the utility model discloses a first avoiding through slot penetrating up and down on the mounting plate, and the first avoiding through slot is used for avoiding the cutter for processing the blank workpiece, so that the mounting plate does not hinder the cutter for processing the blank workpiece from processing the blank workpiece below the blank workpiece, and the cutter can feed and process the blank workpiece from below the blank workpiece.

[0021] According to some embodiments of the utility model, the first clamping mechanism further includes a third air cylinder, the third air cylinder is installed at the bottom of the mounting plate, an extension rod of the third air cylinder is provided with a first pressing arm, the first pressing arm extends to the inner side of the blank workpiece through the first avoiding through slot, the third air cylinder is used for pressing the inner side wall of the blank workpiece, and the first pressing arm and the first locating seat cooperate to clamp the blank workpiece.

[0022] Beneficially, the first clamping mechanism further comprises a third cylinder, the third cylinder is installed at the bottom of the mounting plate, the telescopic rod of the third cylinder is provided with a first pressing arm, the first pressing arm extends to the inner side of the blank workpiece through the first avoiding through slot, the third cylinder is used for pressing the inner side wall of the blank workpiece, and the first pressing arm and the first positioning seat are matched to clamp the blank workpiece, it can be understood that the blank workpiece can be clamped left and right through the cooperation of the first pressing arm and the first positioning seat, so that the positioning of the blank workpiece is more accurate.

[0023] According to some embodiments of the utility model, the first positioning seat includes a first seat body and a first positioning table embedded on the first seat body, the first seat body is used for abutting against the outer side of the blank workpiece to position the outer side of the blank workpiece, and the first positioning table is used for supporting the process platform of the blank workpiece, the top of the first positioning table is provided with a first positioning hole used for positioning the positioning column at the bottom of the process platform.

[0024] Beneficially, the first positioning seat includes a first seat body and a first positioning table embedded on the first seat body, the first seat body is used for abutting against the outer side of the blank workpiece to position the outer side of the blank workpiece, and the first positioning table is used for supporting the process platform of the blank workpiece, the top of the first positioning table is provided with a first positioning hole used for positioning the positioning column at the bottom of the process platform.

[0025] According to some embodiments of the utility model, the bottom of the first pressing plate is provided with a first positioning groove, and the first positioning groove is matched with the process platform of the blank workpiece for positioning.

[0026] Beneficially, the first positioning groove is matched with the process platform of the blank workpiece for positioning, so that the pressing position of the first pressing plate on the blank workpiece is more accurate, and the first pressing plate is placed more stably on the top of the blank workpiece.

[0027] According to some embodiments of the utility model, the mounting plate is provided with a second avoiding through slot penetrating up and down, and the second avoiding through slot is used for avoiding the cutter of the machining semi-finished workpiece.

[0028] Beneficially, the utility model discloses a second avoiding through slot is arranged on the mounting plate, and the second avoiding through slot is used for avoiding the cutter of processing semi -finished workpiece, thereby, avoid the mounting plate below the cutter of processing semi -finished workpiece and hinder the cutter of processing semi -finished workpiece to process semi -finished workpiece, make the cutter can feed processing from the below of semi -finished workpiece to semi -finished workpiece.

[0029] According to some embodiments of the utility model, the second positioning seat includes a second seat body and a second positioning table embedded on the second seat body, the second seat body is used for abutting the outer side of the semi -finished workpiece to position the outer side of the semi -finished workpiece, and the second positioning table is used for supporting the process platform of the semi -finished workpiece, the top of the second positioning table has a second positioning hole for positioning the positioning column at the bottom of the process platform.

[0030] Beneficially, the utility model discloses a second positioning seat including a second seat body and a second positioning table embedded on the second seat body, the second seat body is used for abutting the outer side of the semi -finished workpiece to position the outer side of the semi -finished workpiece, and the second positioning table is used for supporting the process platform of the semi -finished workpiece, the top of the second positioning table has a second positioning hole for positioning the positioning column at the bottom of the process platform, and it can be understood that the second seat body and the second positioning table cooperate to position the outer side of the semi -finished workpiece and the positioning column of the process platform, so that the second positioning seat is more accurate in positioning the finished product.

[0031] According to some embodiments of the utility model, the first clamping mechanism is provided with at least two, and the number of the second clamping mechanism is the same as that of the first clamping mechanism.

[0032] Beneficially, the utility model discloses at least two first clamping mechanisms, and the number of the second clamping mechanism is the same as that of the first clamping mechanism, so that the number of workpieces clamped at a time is increased, the number of equipment downtime clamping is reduced, and efficiency is improved.

[0033] According to some embodiments of the utility model, the turnover device includes:

[0034] A bottom plate is used for being installed on processing equipment.

[0035] A first frame is rotatably provided with a first bracket, and the first bracket is used for connecting one end of the mounting plate.

[0036] A second frame is rotatably provided with a second bracket, and the second bracket is used for connecting the other end of the mounting plate.

[0037] A driving motor is used for driving one of the first bracket and the second bracket to rotate.

[0038] Beneficially: the utility model discloses a turnover device including bottom plate, first frame, second frame and drive motor, bottom plate is used for installing on processing equipment, first frame is rotationally arranged with first bracket, and first bracket is used for connecting one end of mounting plate, second frame is rotationally arranged with second bracket, and second bracket is used for connecting the other end of mounting plate, and drive motor is used to drive one of first bracket and second bracket to rotate, thereby, make the turnover device can drive mounting plate overturn.

[0039] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0041] Figure 1 It is the structure schematic diagram of earphone support of the embodiment of the utility model;

[0042] Figure 2 It is the structure schematic diagram of machining clamp of the earphone support of the embodiment of the utility model;

[0043] Figure 3 It is Figure 2 The structure schematic diagram of shown clamping device;

[0044] Figure 4 It is Figure 3 The structure schematic diagram of another perspective view;

[0045] Figure 5 It is Figure 3 The structure schematic diagram of first pressing plate;

[0046] Figure 6 It is Figure 3 The structure schematic diagram of first positioning seat;

[0047] Figure 7 It is Figure 3 The structure schematic diagram of second pressing plate;

[0048] Figure 8 It is Figure 3 The structure schematic diagram of second positioning seat;

[0049] Figure 9 It is Figure 3A structural schematic view of the turnover device.

[0050] 100-first groove, 110-inclined hole, 120-first boss, 130-second boss, 140-second groove, 150-third boss, 160-first through hole, 170-process platform, 180-positioning column, 190-mounting plate, 200-first clamping mechanism, 210-second clamping mechanism, 220-first positioning seat, 230-first pressing plate, 240-first air cylinder, 250-second positioning seat, 260-second pressing plate, 270-second air cylinder, 280-turnover device, 290-first arc-shaped groove, 300-first avoiding through groove, 310-third air cylinder, 320-first pressing arm, 330-first seat body, 340-first positioning table, 350-first positioning hole, 360-first positioning groove, 370-second avoiding through groove, 380-second seat body, 390-second positioning table, 400-second positioning hole, 410-bottom plate, 420-first frame, 430-first bracket, 440-second frame, 450-second bracket, 460-driving motor. DETAILED DESCRIPTION

[0051] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used to explain the present application, and cannot be understood as a limitation of the present application.

[0052] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0053] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If there is a description of the first and the second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0054] In the description of the utility model, it is necessary to explain that, unless there are explicit provisions and limitations, the terms "installation, connection and connection" should be understood broadly, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements.The specific meaning of the above terms in the utility model can be understood according to specific conditions for ordinary skilled persons in the art.

[0055] The machining clamp of the earphone support is described below according to the embodiment of the utility model.

[0056] The utility model aims at providing an embodiment of the machining clamp of the earphone support.

[0057] Referring to Figure 1 , the earphone support is in the shape of a semicircle, the side wall of the earphone support is inclined from top to bottom to the inside of the earphone support, the inside of the earphone support has a first groove 100, an inclined hole 110 located above the first groove 100 and a first boss 120 and a second boss 130 respectively located at the inside of both ends of the earphone support, the first groove 100 extends along the inner contour of the earphone support, the side wall of the first boss 120 has a second groove 140, the outside of the earphone support has a third boss 150 arranged obliquely, the third boss 150 has a first through hole 160 penetrating the first groove 100, in order to ensure product accuracy, the first groove 100, the inclined hole 110, the second groove 140, the top surface of the third boss 150 and the first through hole 160 and other assembly positions need to be CNC processed to ensure shape and size, at the same time, in order to facilitate processing positioning, the top surface of the blank workpiece is formed with two outwardly extending process ledges 170, the bottom of the process ledge 170 has a positioning column 180.

[0058] Referring to Figure 2 , in the embodiment, the machining clamp of the earphone support mainly includes a clamping device and a turnover device 280.

[0059] Referring to Figure 3 and Figure 4 , for the clamping device, the clamping device includes a mounting plate 190, a first clamping mechanism 200 and a second clamping mechanism 210 arranged on the mounting plate 190, the mounting plate 190 is used for supporting the workpiece, the first clamping mechanism 200 is used for clamping and positioning the blank workpiece, and the second clamping mechanism 210 is used for clamping the semi-finished workpiece processed by the first clamping mechanism 200, so that the first clamping mechanism 200 and the second clamping mechanism 210 can clamp the workpieces of different machining processes respectively, so that the clamp can clamp the workpieces of different machining processes at the same time, and then the types of clamps needed for machining the earphone support can be reduced, clamping and machining are facilitated, and efficiency is improved.

[0060] Specifically, for the first clamping mechanism 200, the first clamping mechanism 200 comprises a first positioning seat 220, a first pressing plate 230 and a first air cylinder 240, the first positioning seat 220 is used for positioning the blank workpiece, the first pressing plate 230 is used for pressing the top surface of the blank workpiece, and the first air cylinder 240 is used for pressing the first pressing plate 230. The first clamping mechanism 200 clamps and positions the blank workpiece so that the blank workpiece completes the processing of the first groove 100, the third boss 150 and the first through hole 160.

[0061] It can be understood that the blank workpiece is placed on the mounting plate 190, the first positioning seat 220 is used to position the blank workpiece, then the first pressing plate 230 is placed on the top of the blank workpiece to press the top surface of the blank workpiece, and the first air cylinder 240 is used to press the first pressing plate 230. Therefore, the first air cylinder 240 is pressed on the first pressing plate 230 on the top surface of the blank workpiece, and then the first air cylinder 240 is pressed on the first pressing plate 230 to clamp the blank workpiece, which can avoid the first air cylinder 240 directly colliding with the blank workpiece when the first air cylinder 240 is pressed on the blank workpiece, thereby avoiding the first air cylinder 240 from damaging the blank workpiece.

[0062] In some specific embodiments, the first air cylinder 240 can be provided as a rotary air cylinder, so that the telescopic rod of the first air cylinder 240 can rotate synchronously when it is extended or retracted, thereby avoiding the first air cylinder 240 interfering with the disassembly of the blank workpiece when the first air cylinder 240 releases the first pressing plate 230.

[0063] Referring to Figure 3 and Figure 5 In some specific embodiments, one side of the first pressing plate 230 has a first arc-shaped groove 290, which is used to avoid the tool for processing the blank workpiece, thereby avoiding the first pressing plate 230 from hindering the tool for processing the blank workpiece from processing the blank workpiece above the blank workpiece.

[0064] In some specific embodiments, the mounting plate 190 is provided with a first avoiding through groove 300 penetrating from top to bottom, which is used to avoid the tool for processing the blank workpiece, thereby avoiding the mounting plate 190 from hindering the tool for processing the blank workpiece from processing the blank workpiece below the blank workpiece, so that the tool can feed and process the blank workpiece from below the blank workpiece.

[0065] Further, the first clamping mechanism 200 further comprises a third air cylinder 310 installed at the bottom of the mounting plate 190, the telescopic rod of the third air cylinder 310 is provided with a first pressing arm 320, the first pressing arm 320 extends to the inner side of the blank workpiece through the first avoiding through groove 300, and the third air cylinder 310 is used for pressing the inner side wall of the blank workpiece. The first pressing arm 320 and the first positioning seat 220 cooperate to clamp the blank workpiece.

[0066] It can be understood that the first pressing arm 320 and the first positioning seat 220 can clamp the blank workpiece left and right, so as to avoid the horizontal cooperation of the blank workpiece to cause inaccurate positioning of the blank workpiece, thereby making the first clamping mechanism 200 more accurate in positioning the blank workpiece.

[0067] With reference to Figure 3 and Figure 6 In some specific embodiments, the first positioning seat 220 includes a first seat body 330, a first positioning table 340 embedded in the first seat body 330, the first seat body 330 is used to abut the outer side of the blank workpiece to position the outer side of the blank workpiece, the first positioning table 340 is used to support the process platform 170 of the blank workpiece, the top of the first positioning table 340 has a first positioning hole 350, and the first positioning hole 350 is used to position the positioning column 180 at the bottom of the process platform 170.

[0068] It can be understood that the first seat body 330 and the first positioning table 340 cooperate to position the outer side of the blank workpiece and the positioning column 180 of the process platform 170, so that the first positioning seat 220 is more accurate in positioning the blank workpiece.

[0069] In some specific embodiments, the bottom of the first pressing plate 230 is provided with a first positioning groove 360, and the first positioning groove 360 cooperates with the process platform 170 of the blank workpiece to position, so that the first pressing plate 230 is more accurate in pressing the blank workpiece on the top of the blank workpiece, and the first pressing plate 230 is placed more stably on the top of the blank workpiece.

[0070] With reference to Figure 3 and Figure 7 For the second clamping mechanism 210, the second clamping mechanism 210 includes a second positioning seat 250, a second pressing plate 260 and a second cylinder 270, the second positioning seat 250 is used to position the semi-finished workpiece, the second pressing plate 260 is used to press the first recess 100 of the semi-finished workpiece, and the second cylinder 270 is used to press the second pressing plate 260. The second clamping mechanism 210 clamps and positions the semi-finished workpiece to complete the processing of the inclined hole 110 and the second recess 140 of the semi-finished workpiece.

[0071] It can be understood that the semi-finished workpiece is placed on the mounting plate 190, and the second positioning seat 250 is positioned against the semi-finished workpiece, and then the second pressing plate 260 is placed on the first recess 100, so that the second pressing plate 260 can avoid the tool for machining the inclined hole 110, and then the second cylinder 270 is used to press the second pressing plate 260, so that the second pressing plate 260 is now placed on the first recess 100 of the finished workpiece, and the second cylinder 270 is used to press the second pressing plate 260 to clamp the semi-finished workpiece, which can avoid the second cylinder 270 directly colliding with the semi-finished workpiece when the second cylinder 270 is pressed against the semi-finished workpiece, and further, the second cylinder 270 can avoid damaging the finished workpiece.

[0072] In some specific embodiments, the second cylinder 270 can be provided as a rotary cylinder, so that the extension rod of the second cylinder 270 can rotate synchronously when it is extended or retracted, and further, the second cylinder 270 can avoid the second pressing plate 260 when it is released, thereby avoiding interference of the second pressing plate 260 with the semi-finished workpiece during disassembly.

[0073] In some specific embodiments, the mounting plate 190 is provided with a second avoiding through groove 370 extending upward and downward, which is used to avoid the tool for machining the semi-finished workpiece, so that the mounting plate 190 does not hinder the tool for machining the semi-finished workpiece from below, and the tool can feed the semi-finished workpiece from below.

[0074] Referring to Figure 3 and Figure 8 In some specific embodiments, the second positioning seat 250 includes a second seat body 380 and a second positioning table 390 embedded on the second seat body 380, the second seat body 380 is used to abut against the outer side of the semi-finished workpiece to position the outer side of the semi-finished workpiece, and the second positioning table 390 is used to support the process platform 170 of the semi-finished workpiece, and the top of the second positioning table 390 has a second positioning hole 400 for positioning the positioning column 180 at the bottom of the process platform 170.

[0075] It can be understood that the second positioning seat 250 is more accurate in positioning the finished workpiece by positioning the outer side of the semi-finished workpiece and the positioning column 180 of the process platform 170 through the cooperation of the second seat body 380 and the second positioning table 390.

[0076] In some specific embodiments, the first clamping mechanism 200 is provided at least in two, and the number of the second clamping mechanism 210 is the same as that of the first clamping mechanism 200, so that the number of workpieces clamped at one time is increased, and the number of equipment downtime for clamping is reduced, and further, the efficiency is improved.

[0077] In some specific embodiments, the second cylinder 270 is provided with a second pressing arm, two ends of the second pressing arm are respectively used for pressing two adjacent second pressing blocks, so that the number of the second cylinder 270 is reduced, and then the space is saved and the manufacturing cost is reduced.

[0078] With reference to Figure 9 For the turnover device 280, the turnover device 280 is used for connecting two ends of the mounting plate 190 and driving the mounting plate 190 to overturn, so that the turnover device 280 can overturn the workpiece, and then a plurality of clamping stations can be arranged on the clamp and the workpiece can be overturned to adapt to different machining feeding directions, the types of the clamp are reduced, the clamping and machining are facilitated, and the efficiency is improved.

[0079] Specifically, the turnover device 280 comprises a bottom plate 410, a first frame 420, a second frame 440 and a driving motor 460, the bottom plate 410 is used for being mounted on a machining equipment; the first frame 420 is rotationally provided with a first bracket 430, the first bracket 430 is used for connecting one end of the mounting plate 190; the second frame 440 is rotationally provided with a second bracket 450, the second bracket 450 is used for connecting the other end of the mounting plate 190; and the driving motor 460 is used for driving one of the first bracket 430 and the second bracket 450 to rotate.

[0080] The embodiment makes the turnover device 280 comprise the bottom plate 410, the first frame 420, the second frame 440 and the driving motor 460, the bottom plate 410 is used for being mounted on the machining equipment; the first frame 420 is rotationally provided with the first bracket 430, the first bracket 430 is used for connecting one end of the mounting plate 190; the second frame 440 is rotationally provided with the second bracket 450, the second bracket 450 is used for connecting the other end of the mounting plate 190; and the driving motor 460 is used for driving one of the first bracket 430 and the second bracket 450 to rotate, so that the turnover device 280 can drive the mounting plate 190 to overturn.

[0081] In the description of the present specification, the description of the terms "one embodiment, some embodiments, illustrative embodiments, examples, specific examples or some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0082] The terms "first", "second", "third", "fourth", and the like in the description of this application and in the claims of the foregoing drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of the terms so

[0083] It is also to be noted that the terms "comprise", "comprising", "include", and / or "including", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0084] In addition, the terms "comprise" and "have", and any variations thereof, are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses.

[0085] Furthermore, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not necessarily limited to only those elements, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without more constraints, an element preceded by "comprising" does not, without more constraints, foreclose the existence of additional identical elements in the processes, methods, articles, or apparatuses that "comprise" the identified element.

[0086] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A machining jig for an earphone holder, characterized by, The utility model relates to a clamping device for machining a workpiece, comprising: a mounting plate (190) for supporting the workpiece, a first clamping mechanism (200) for clamping a blank workpiece, a second clamping mechanism (210) for clamping a semi-finished workpiece machined by the first clamping mechanism (200), the first clamping mechanism (200) comprising a first positioning seat (220) for positioning the blank workpiece, 2. A machining fixture for earphone holders according to claim 1, characterized in that, a first pressing plate (230) for pressing the top surface of the blank workpiece, 3. A machining fixture for earphone holders according to claim 1, characterized in that, a first air cylinder (240) for pressing the first pressing plate (230), 4. A machining fixture for earphone holders according to claim 3, characterized in that, the first clamping mechanism (200) clamping the blank workpiece to complete the machining of a first groove (100), a third boss (150) and a first through hole (160), the second clamping mechanism (210) comprising a second positioning seat (250) for positioning the semi-finished workpiece, a second pressing plate (260) for pressing the first groove (100) of the semi-finished workpiece, a second air cylinder (270) for pressing the second pressing plate (260), the second clamping mechanism (210) clamping the semi-finished workpiece to complete the machining of a slant hole (110) and a second groove (140), a turnover device (280) connected to both ends of the mounting plate (190) and used to turn over the mounting plate (190). The first pressing plate (230) has a first arc-shaped slot (290) on one side for avoiding the tool machining the blank workpiece. The mounting plate (190) is provided with a first avoiding through slot (300) extending from top to bottom for avoiding the tool machining the blank workpiece. The first clamping mechanism (200) further comprises a third air cylinder (310) installed at the bottom of the mounting plate (190), the third air cylinder (310) having an extending rod provided with a first pressing arm (320) extending through the first avoiding through slot (300) to the inner side of the blank workpiece, the third air cylinder (310) being used to press the inner side wall of the blank workpiece, the first pressing arm (320) and the first positioning seat (220) cooperating to clamp the blank workpiece.

5. A machining fixture for earphone holders according to claim 1, characterized in that, The first positioning seat (220) comprises a first seat body (330) and a first positioning table (340) embedded in the first seat body (330), the first seat body (330) is used for abutting against the outer side of the blank workpiece to position the outer side of the blank workpiece, the first positioning table (340) is used for supporting the process platform (170) of the blank workpiece, the top of the first positioning table (340) is provided with a first positioning hole (350) used for positioning the positioning column (180) at the bottom of the process platform (170).

6. A machining fixture for earphone holders according to claim 1, characterized in that, The bottom of the first pressing plate (230) is provided with a first positioning groove (360) matched with the process platform (170) of the blank workpiece for positioning.

7. A machining fixture for earphone holders according to claim 1, characterized in that, The mounting plate (190) is provided with a second avoiding through groove (370) penetrating from top to bottom, the second avoiding through groove (370) is used for avoiding the cutter for machining the semi-finished workpiece.

8. A machining fixture for earphone holders according to claim 1, characterized in that, The second positioning seat (250) comprises a second seat body (380) and a second positioning table (390) embedded in the second seat body (380), the second seat body (380) is used for abutting against the outer side of the semi-finished workpiece to position the outer side of the semi-finished workpiece, the second positioning table (390) is used for supporting the process platform (170) of the semi-finished workpiece, the top of the second positioning table (390) is provided with a second positioning hole (400) used for positioning the positioning column (180) at the bottom of the process platform (170).

9. A machining fixture for earphone holders according to claim 1, characterized in that, The first clamping mechanism (200) is provided with at least two, the number of the second clamping mechanism (210) is the same as that of the first clamping mechanism (200).

10. A machining fixture for earphone holders according to claim 1, characterized in that, The turnover device (280) comprises: a bottom plate (410) used for mounting on a machining equipment; a first frame (420) rotatably provided with a first bracket (430), the first bracket (430) is used for connecting one end of the mounting plate (190); a second frame (440) rotatably provided with a second bracket (450), the second bracket (450) is used for connecting the other end of the mounting plate (190); a driving motor (460) used for driving one of the first bracket (430) and the second bracket (450) to rotate.

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