CN211389779U - Mobile terminal shell flash removing device - Google Patents

Abstract

The utility model belongs to the technical field of deburring equipment, in particular to a deburring device for a mobile terminal shell, which comprises a bottom plate, a cutting mechanism, a driving mechanism and a transmission mechanism; the cutting mechanism is fixedly connected with the bottom plate and used for cutting the flash; the driving mechanism is fixedly connected with the bottom plate and used for driving the cutting mechanism; the input end of the transmission mechanism is connected with the output end of the driving mechanism, and the output end of the transmission mechanism is connected with the input end of the cutting mechanism; through direct control to actuating mechanism, can realize the accurate regulation and control to cutting mechanism through drive mechanism, carry out the rotational speed adjustment to cutting mechanism according to the needs of production, it is low to compare in the grinding device among the prior art existence precision, the general technical problem of product quality, the embodiment of the utility model provides a mobile terminal shell overlap remove device can cut the overlap of mobile terminal shell edge effectively accurately, obtains the higher finished product of precision.

Description

Mobile terminal shell flash removing device

Technical Field

The utility model belongs to the technical field of remove overlap equipment, especially, relate to a mobile terminal shell overlap remove device.

Background

The flash is also called as flash, burr, etc., and most of it occurs on the parting and joining position of the mould, such as parting surface of the moving mould and static mould, slide fitting position of the slide block, clearance of the insert, and hole of the ejector pin, etc., the flash is caused by the mould or machine locking force failure to a great extent, generally speaking, due to the influence of various factors, it is impossible that the plastic part does not produce flash absolutely, the residual flash overflowed into the clearance of the mould closing line or the ejector pin, etc. and left on the plastic part in the moulding process can be removed by polishing, grinding, etc., because the contact surface between the male mould and the female mould has low sealing precision, the material amount is too much, the residual flash leaks at the weak sealing position, and the flash is formed.

Most of the reason for generating the flashes in the current market is unbalanced stress, unsuitable temperature and humidity, and the like, so that the flashes are required to be removed, manual grinding or machine grinding is usually adopted, however, for the mobile terminal shell, the precision of the finished product determines the price of the finished product, so that the finished product with higher precision is required to be obtained, the flashes at the edge of the mobile terminal shell are required to be accurately removed, the increase of the working difficulty is caused for general grinding equipment, and the required precision cannot be achieved. Therefore, the flash removing device for the mobile terminal shell is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mobile terminal shell overlap remove device aims at solving the grinding device among the prior art and can not carry out the accuracy to the overlap of mobile terminal shell edge well and get rid of, leads to the lower technical problem of finished product precision that obtains.

In order to achieve the above object, an embodiment of the present invention provides a device for removing flash from a mobile terminal housing, which includes a bottom plate, a cutting mechanism, a driving mechanism and a transmission mechanism; the cutting mechanism is fixedly connected with the bottom plate and used for cutting the flash; the driving mechanism is fixedly connected with the bottom plate and used for driving the cutting mechanism; the input end of the transmission mechanism is connected with the output end of the driving mechanism, and the output end of the transmission mechanism is connected with the input end of the cutting mechanism.

Optionally, cutting mechanism includes first support, second support, fixed axle and cutting piece, first support with the second support all with bottom plate fixed connection, first support with be equipped with between the second support and be used for holding the cutting piece with the chamber that holds of fixed axle, the one end of fixed axle with first support rotates to be connected, the other end of fixed axle with the second support rotates to be connected, cutting piece tight fit is connected on the fixed axle and be located hold the intracavity, the tip of cutting piece extends to hold the outside in chamber.

Optionally, a first bearing is arranged on the first support, a first positioning hole for rotationally and adaptively connecting with the fixed shaft is formed in the first support, an outer ring of the first bearing is in close fit connection with an inner wall of the first positioning hole formed in the first support, and an inner ring of the first bearing is in close fit connection with the fixed shaft;

the second support is provided with a second bearing, a second positioning hole used for being connected with the fixed shaft is formed in the second support, the outer ring of the second bearing is in close fit connection with the inner wall of the second positioning hole formed in the second support, and the inner ring of the second bearing is in close fit connection with the fixed shaft.

Optionally, two first threaded holes symmetrical along an axis of the first bracket are formed in the bottom of the first bracket, and the first bracket is fixedly connected with two second threaded holes formed in the bottom plate corresponding to the two first threaded holes through screws;

the bottom of the second support is provided with two third threaded holes which are symmetrical along the axis of the second support, and the second support is fixedly connected with two fourth threaded holes which are formed in the position, corresponding to the two third threaded holes, of the bottom plate through screws.

Optionally, the fixed axle is provided with a flat key, the fixed axle is provided with a key slot for connecting with the flat key for adaptation, the cutting blade center is provided with a mounting hole penetrating through two ends of the center, and the fixed axle is connected with the mounting hole through the flat key.

Optionally, drive mechanism includes first belt pulley, second belt pulley and belt, first belt pulley with the input tight fit of fixed axle is connected, the second belt pulley is located on actuating mechanism's the output, first belt pulley with the second belt pulley passes through the belt rotates and connects.

Optionally, a fifth threaded hole for fixing the input end of the fixed shaft is formed in the peripheral side wall of the first belt pulley, and the fifth threaded hole is tightly matched and connected with the input end of the fixed shaft through a screw;

and a sixth threaded hole for fixing the output end of the driving mechanism is formed in the peripheral side wall of the second belt pulley, and the sixth threaded hole is tightly matched and connected with the output end of the driving mechanism through a screw.

Optionally, the driving mechanism includes a mounting seat and a motor, the mounting seat is fixedly connected to the bottom plate, the motor is fixedly connected to the mounting seat, and the first belt pulley is tightly fitted and connected to an output spindle of the motor.

Optionally, the bottom of the mounting seat is provided with four seventh threaded holes, the bottom plate is provided with four eighth threaded holes, and the mounting seat is fixedly connected to the bottom plate through screws and the seventh threaded holes and the eighth threaded holes respectively; four ninth threaded holes are formed in the side wall of the mounting seat, four tenth threaded holes are formed in the motor, and the motor is fixedly connected to the mounting seat through the ninth threaded holes and the tenth threaded holes respectively.

Optionally, the distance between the end of the cutting blade and the base plate is substantially greater than the distance between the end of the motor and the base plate.

The embodiment of the utility model provides an among the mobile terminal shell overlap remove device above-mentioned one or more technical scheme have one of following technological effect at least: the utility model discloses a mobile terminal shell overlap remove device, during the use, at first pass through fastener fixed connection with bottom plate and deburring equipment, the fastener can adopt screw or screw, then, open actuating mechanism's power, actuating mechanism begins output power, when actuating mechanism's output begins output power, the power of actuating mechanism's output can be received to the drive mechanism's that sets up input, then can be through drive mechanism's output with power transmission to cutting mechanism's input, thereby drive cutting mechanism begins work, through direct control to actuating mechanism, can realize the accurate regulation and control to cutting mechanism through drive mechanism, carry out the rotational speed adjustment to cutting mechanism according to the needs of production, it is low to compare in the grinding device among the prior art existence precision, the general technical problem of product quality, the embodiment of the utility model provides a mobile terminal shell overlap remove device can be effectively to mobile terminal And the flash at the edge of the shell is accurately cut to obtain a finished product with higher precision.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a device for removing flash from a housing of a mobile terminal according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a first support of the device for removing flash from a mobile terminal casing, provided by the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a second bracket of the device for removing flash from the casing of a mobile terminal according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a bottom plate of the device for removing flash from the casing of a mobile terminal according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a fixing shaft of the device for removing burrs on the housing of a mobile terminal according to an embodiment of the present invention.

Fig. 6 is the embodiment of the utility model provides a mobile terminal shell overlap remove device's cutting disc's schematic structure diagram.

Fig. 7 is another schematic structural diagram of a device for removing flash from a housing of a mobile terminal according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-bottom plate 11-second threaded hole 12-fourth threaded hole

13-eighth threaded hole 21-first support 22-second support

23-fixed shaft 24-cutting blade 25-containing cavity

31-mounting seat 32-motor 41-first belt pulley

42-second pulley 43-belt 211-first bearing

212-first positioning hole 213-first threaded hole 221-second bearing

222-second positioning hole 223-third threaded hole 231-key groove

241-mounting hole 311-seventh threaded hole 312-ninth threaded hole

321-tenth screw hole 411-fifth screw hole 421-sixth screw hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1, a device for removing flash from a mobile terminal housing is provided, which includes a bottom plate 10, a cutting mechanism, a driving mechanism and a transmission mechanism; the cutting mechanism is fixedly connected with the bottom plate 10 and used for cutting the flash; the driving mechanism is fixedly connected with the bottom plate 10 and used for driving the cutting mechanism; the input end of the transmission mechanism is connected with the output end of the driving mechanism, and the output end of the transmission mechanism is connected with the input end of the cutting mechanism.

Specifically, the device for removing flash from the housing of a mobile terminal of the present invention, when in use, first, the bottom plate 10 is fixedly connected to the flash removing device through the fastening member, the fastening member can be a screw or a bolt, then, the power supply of the driving mechanism is turned on, the driving mechanism starts to output power, when the output end of the driving mechanism starts to output power, the input end of the transmission mechanism can receive the power output by the output end of the driving mechanism, and then the power can be transmitted to the input end of the cutting mechanism through the output end of the transmission mechanism, thereby driving the cutting mechanism to start working, through directly controlling the driving mechanism, the accurate regulation and control of the cutting mechanism can be realized through the transmission mechanism, the rotating speed regulation of the cutting mechanism can be performed according to the production requirement, compared with the prior art, the grinding device has the technical problems of low precision and general product quality, the embodiment of the utility model provides a mobile terminal shell overlap remove device can cut the overlap of mobile terminal shell edge effectively accurately, obtains the higher finished product of precision.

In another embodiment of the present invention, as shown in fig. 1, 4, 5, and 6, the cutting mechanism includes a first bracket 21, a second bracket 22, a fixing shaft 23, and a cutting blade 24, the first bracket 21 and the second bracket 22 are both fixedly connected to the bottom plate 10, a receiving cavity 25 for receiving the cutting blade 24 and the fixing shaft 23 is disposed between the first bracket 21 and the second bracket 22, one end of the fixing shaft 23 is rotatably connected to the first bracket 21, the other end of the fixing shaft 23 is rotatably connected to the second bracket 22, the cutting blade 24 is tightly fitted on the fixing shaft 23 and located in the receiving cavity 25, and an end of the cutting blade 24 extends to an outer side of the receiving cavity 25; specifically, the first bracket 21 and the second bracket 22 are both fixedly arranged on the upper surface of the bottom plate 10, the first bracket 21 and the second bracket 22 are both arranged perpendicular to the bottom plate 10, a containing cavity 25 is formed between the fixed first bracket 21 and the fixed second bracket 22, the fixing shaft 23 and the cutting blade 24 are arranged in the containing cavity 25 formed by the first bracket 21 and the second bracket 22, both ends of the fixing shaft 23 can be rotatably connected to the first bracket 21 and the second bracket 22, the first bracket 21 and the second bracket 22 provide a supporting function for the fixing shaft 23 to support the fixing shaft 23 to freely rotate on the first bracket 21 and the second bracket 22, the cutting blade 24 is tightly connected to the fixing shaft 23, when the fixing rotation is performed, the cutting blade 24 can be driven to rotate to cut the flash of the mobile terminal housing, the diameter of the cutting blade 24 is set to be larger than the height of the containing cavity 25, and the situation that the cutting blade 24 cannot contact with the processed product during cutting can be avoided, the cutting blade 24 is in good contact with a processed product, the cutting blade 24 can be guaranteed to work effectively and safely in the cutting process through the arrangement of the scheme, and the production safety is improved.

In another embodiment of the present invention, as shown in fig. 1 to 6, a first bearing 211 is disposed on the first bracket 21, a first positioning hole 212 for rotationally and adaptively connecting with the fixed shaft 23 is disposed on the first bracket 21, an outer ring of the first bearing 211 is tightly fitted and connected with an inner wall of the first positioning hole 212 disposed on the first bracket 21, and an inner ring of the first bearing 211 is tightly fitted and connected with the fixed shaft 23;

a second bearing 221 is arranged on the second support 22, a second positioning hole 222 used for being connected with the fixed shaft 23 is formed in the second support 22, the outer ring of the second bearing 221 is in tight fit connection with the inner wall of the second positioning hole 222 formed in the second support 22, and the inner ring of the second bearing 221 is in tight fit connection with the fixed shaft 23; specifically, the first bracket 21 and the second bracket 22 are provided with a first positioning hole 212 and a second positioning hole 222, a first bearing 211 and a second bearing 221 may be respectively installed in the first positioning hole 212 and the second positioning hole 222, the first bearing 211 and the second bearing 221 can be tightly fitted into the first positioning hole 212 and the second positioning hole 222 by means of tight fitting, the fixing shaft 23 can be tightly fitted over the first bearing 211 and the second bearing 221 by means of tight fitting, the first positioning hole 212 and the second positioning hole 222 define the positions of the first bearing 211 and the second bearing 221, and the first bearing 211 and the second bearing 221 define the position of the fixing shaft 23 by means of tight fitting, make fixed axle 23 more steady and smooth and easy when rotatory, avoided fixed axle 23 at the during operation shake, be favorable to the promotion of machining precision.

In another embodiment of the present invention, as shown in fig. 1 to 4, two first threaded holes 213 symmetrical along the axis of the first bracket 21 are formed at the bottom of the first bracket 21, and the first bracket 21 is fixedly connected to two second threaded holes 11 formed on the bottom plate 10 at positions corresponding to the two first threaded holes 213 through screws;

the bottom of the second bracket 22 is provided with two third threaded holes 223 which are symmetrical along the axis of the second bracket, and the second bracket 22 is fixedly connected with two fourth threaded holes 12 which are arranged on the bottom plate 10 and correspond to the two third threaded holes 223 through screws; specifically, first support 21 and second support 22 all with bottom plate 10 fixed connection, first screw hole 213 and the third screw hole 223 of two symmetries have been seted up respectively at the length direction both ends of the bottom of first support 21 and second support 22, also set up two second screw hole 11 and the fourth screw hole 12 that correspond with first screw hole 213 and third screw hole 223 position respectively on the bottom plate 10, can pass the screw hole that sets up on first support 21 and the bottom plate 10 with the screw and fix both, can use the screw to pass the screw hole that sets up on second support 22 and the bottom plate 10 to fix both equally, after through the screw fixation, the stability of first support 21 and second support 22 is promoted by a wide margin, be favorable to promoting cutting mechanism holistic reliability and security.

In another embodiment of the present invention, as shown in fig. 1, 5 and 6, a flat key is disposed on the fixing shaft 23, a key slot 231 for connecting with the flat key for adapting is disposed on the fixing shaft 23, a mounting hole 241 penetrating through two ends of the center of the cutting blade 24 is disposed at the center of the cutting blade, and the fixing shaft 23 and the mounting hole 241 are adapted by connecting with the flat key; specifically, a key groove 231 matched with the flat key is formed in the fixing shaft 23, a flat key is placed in the key groove 231, the cutting blade 24 and the fixing shaft 23 are matched through the flat key, the flat key arranged on the fixing shaft 23 can be used for detachable connection between the fixing shaft 23 and the cutting blade 24 and can also be used for transmitting torque and driving the cutting blade 24 to move, the efficiency of the transmission torque matched through the flat key is higher than that of the transmission torque transmitted through a tight fit mode, the maximum kinetic energy conversion is favorably improved, and the production efficiency is favorably improved

In another embodiment of the present invention, as shown in fig. 1 and 5, the transmission mechanism includes a first belt pulley 41, a second belt pulley 42 and a belt 43, the first belt pulley 41 is tightly fitted and connected with the input end of the fixed shaft 23, the second belt pulley 42 is disposed on the output end of the driving mechanism, and the first belt pulley 41 and the second belt pulley 42 are rotatably connected through the belt 43; specifically, drive mechanism has adopted belt drive's mode, be provided with a first belt pulley 41, a second belt pulley 42 and a belt 43, connect first belt pulley 41 close-fitting at the input end of fixed axle 23, then connect second belt pulley 42 close-fitting at drive mechanism's output end, reuse belt 43 rotates first belt pulley 41 and second belt pulley 42 to be connected, the belt drive's of this scheme adoption mode can relax impact and vibration load effectively, and can keep steadily at the moving in-process, the influence of less noise, be favorable to this device life's promotion.

In another embodiment of the present invention, as shown in fig. 1, 5 and 7, a fifth threaded hole 411 for fixing the input end of the fixed shaft 23 is formed on the peripheral side wall of the first belt pulley 41, and the fifth threaded hole 411 is tightly fitted and connected with the input end of the fixed shaft 23 through a screw;

a sixth threaded hole 421 for fixing the output end of the driving mechanism is formed in the peripheral side wall of the second belt pulley 42, and the sixth threaded hole 421 is tightly matched and connected with the output end of the driving mechanism through a screw; specifically, the first belt pulley 41 is connected with the input end of the fixed shaft 23 in a tight fit manner, a fifth threaded hole 411 for fixing the input end of the fixed shaft 23 is formed in the peripheral side wall of the first belt pulley 41, and then a screw is inserted into the fifth threaded hole 411, so that the first belt pulley 41 can be tightly matched with the input end of the fixed shaft 23, and the tightness of the matching between the first belt pulley 41 and the input end of the fixed shaft 23 is greatly improved; under the same mode, be connected through the mode of tight fit between second belt pulley 42 and the actuating mechanism output, offer the sixth screw hole 421 that is used for fixed actuating mechanism output on second belt pulley 42's periphery lateral wall, then penetrate the screw in sixth screw hole 421, alright in order to realize more inseparable cooperation between second belt pulley 42 and the actuating mechanism output, promoted the compactness of cooperation between second belt pulley 42 and the actuating mechanism output more by a wide margin, being provided with of this scheme does benefit to the reliability of cooperation between lifting pulley and the axle, avoided the unexpected emergence of this device at operation in-process, be favorable to improving the security performance of production.

In another embodiment of the present invention, as shown in fig. 1, 4 and 7, the driving mechanism includes a mounting seat 31 and a motor 32, the mounting seat 31 is fixedly connected to the bottom plate 10, the motor 32 is fixedly connected to the mounting seat 31, and the first belt pulley 41 is tightly fitted and connected to an output spindle of the motor 32; specifically, actuating mechanism directly comprises mount pad 31 and motor 32, the equipment use is simpler and more convenient, and is easier to operate, can inject the position of motor 32 with mount pad 31 fixed mounting in the upper surface department of bottom plate 10, make motor 32 more steady in the operation process, still further guaranteed motor 32 operating stationarity after with motor 32 and mount pad 31 fixed connection, make motor 32 can not take place the skew when the operation and lead to unexpected emergence, can utilize the kinetic energy that motor 32 produced to the maximize with motor 32's output main shaft and first belt pulley 41 lug connection, be favorable to the utilization of resource, also be favorable to promoting the high efficiency of production.

In another embodiment of the present invention, as shown in fig. 1, 4 and 7, the bottom of the mounting seat 31 is provided with four seventh threaded holes 311, the bottom plate 10 is provided with four eighth threaded holes 13, and the mounting seat 31 is respectively fixedly connected to the bottom plate 10 through screws and the seventh threaded holes 311 and the eighth threaded holes 13; four ninth threaded holes 312 are formed in the side wall of the mounting seat 31, four tenth threaded holes 321 are formed in the motor 32, and the motor 32 is fixedly connected to the mounting seat 31 through the ninth threaded holes 312 and the tenth threaded holes 321 respectively; specifically, the mounting seat 31 is fixedly connected with the bottom plate 10, the two ends of the bottom of the mounting seat 31 in the length direction are provided with four seventh threaded holes 311, and the bottom plate 10 is also provided with four eighth threaded holes 13 corresponding to the seventh threaded holes 311, so that screws can penetrate through the mounting seat 31 and the threaded holes arranged in the bottom plate 10 to fix the mounting seat 31 and the bottom plate 10; mount pad 31 and motor 32 fixed connection, altogether four ninth screw holes 312 have been seted up on the lateral wall of mount pad 31, also four tenth screw holes 321 that correspond with ninth screw hole 312 position respectively have been seted up on the motor 32, so alright fix both with the screw hole that sets up on passing mount pad 31 and motor 32 with the use screw, through the screw fixation back, stability between motor 32 and the mount pad 31 and between mount pad 31 and the bottom plate 10 is promoted by a wide margin, be favorable to promoting the holistic reliability of actuating mechanism and security.

In another embodiment of the present invention, as shown in fig. 1 to 7, the distance between the end of the cutting blade 24 and the bottom plate 10 is much greater than the distance between the end of the motor 32 and the bottom plate 10; in particular, the vertical distance formed between the end of the cutting blade 24 remote from the base plate 10 and said base plate 10 is much greater than the vertical distance formed between the end of the motor 32 remote from the base plate 10 and said base plate 10, which, in use of the device, the cutting blade 24 is required to be contacted with the flash of the mobile terminal shell so as to cut the flash of the mobile terminal shell, the distance between the end part of the cutting blade 24 and the bottom plate 10 is far larger than the distance between the end part of the motor 32 and the bottom plate 10, so that the device is ensured to be always contacted with the flash of the mobile terminal shell when being contacted with the flash of the mobile terminal shell, the driving mechanism is not contacted with the flash of the mobile terminal shell, the arrangement of the scheme ensures that the cutting blade 24 is always contacted with the flash of the mobile terminal shell, and is favorable for improving the reliability of production.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a mobile terminal shell overlap remove device which characterized in that: the method comprises the following steps:

a base plate;

a cutting mechanism; the cutting mechanism is fixedly connected with the bottom plate and used for cutting the flash;

the driving mechanism is fixedly connected with the bottom plate and used for driving the cutting mechanism;

the input end of the transmission mechanism is connected with the output end of the driving mechanism, and the output end of the transmission mechanism is connected with the input end of the cutting mechanism.

2. The flash removing device for mobile terminal case according to claim 1, characterized in that: cutting mechanism includes first support, second support, fixed axle and cutting piece, first support with the second support all with bottom plate fixed connection, first support with be equipped with between the second support and be used for holding the cutting piece with the chamber that holds of fixed axle, the one end of fixed axle with first support rotates to be connected, the other end of fixed axle with the second support rotates to be connected, cutting piece tight fit is connected on the fixed axle and be located hold the intracavity, the tip of cutting piece extends to hold the outside in chamber.

3. The flash removing device for mobile terminal case according to claim 2, characterized in that: the first support is provided with a first bearing, the first support is provided with a first positioning hole which is used for being in rotary adaptive connection with the fixed shaft, the outer ring of the first bearing is in tight fit connection with the inner wall of the first positioning hole formed in the first support, and the inner ring of the first bearing is in tight fit connection with the fixed shaft;

the second support is provided with a second bearing, a second positioning hole used for being connected with the fixed shaft is formed in the second support, the outer ring of the second bearing is in close fit connection with the inner wall of the second positioning hole formed in the second support, and the inner ring of the second bearing is in close fit connection with the fixed shaft.

4. The flash removing device for mobile terminal case according to claim 2, characterized in that: the bottom of the first support is provided with two first threaded holes which are symmetrical along the axis of the first support, and the first support is fixedly connected with two second threaded holes which are formed in the position, corresponding to the two first threaded holes, of the bottom plate through screws;

the bottom of the second support is provided with two third threaded holes which are symmetrical along the axis of the second support, and the second support is fixedly connected with two fourth threaded holes which are formed in the position, corresponding to the two third threaded holes, of the bottom plate through screws.

5. The flash removing device for mobile terminal case according to claim 2, characterized in that: be equipped with the parallel key on the fixed axle, set up on the fixed axle be used for with the keyway of parallel key-type connection adaptation, cutting piece center department sets up the mounting hole that runs through its center department both ends, the fixed axle with the mounting hole passes through parallel key-type connection adaptation.

6. The flash removing device for mobile terminal case according to claim 2, characterized in that: drive mechanism includes first belt pulley, second belt pulley and belt, first belt pulley with the input tight fit of fixed axle is connected, the second belt pulley is located on drive mechanism's the output, first belt pulley with the second belt pulley passes through the belt rotates and connects.

7. The flash removing device for mobile terminal case according to claim 6, characterized in that: a fifth threaded hole for fixing the input end of the fixed shaft is formed in the peripheral side wall of the first belt pulley, and the fifth threaded hole is tightly matched and connected with the input end of the fixed shaft through a screw;

and a sixth threaded hole for fixing the output end of the driving mechanism is formed in the peripheral side wall of the second belt pulley, and the sixth threaded hole is tightly matched and connected with the output end of the driving mechanism through a screw.

8. The flash removing device for mobile terminal housing according to claim 7, wherein: the driving mechanism comprises a mounting seat and a motor, the mounting seat is fixedly connected with the bottom plate, the motor is fixedly connected with the mounting seat, and the first belt pulley is tightly matched and connected on an output main shaft of the motor.

9. The flash removing device for mobile terminal housing according to claim 8, wherein: the bottom of the mounting seat is provided with four seventh threaded holes, the bottom plate is provided with four eighth threaded holes, and the mounting seat is fixedly connected with the seventh threaded holes and the eighth threaded holes through screws; four ninth threaded holes are formed in the side wall of the mounting seat, four tenth threaded holes are formed in the motor, and the motor is fixedly connected to the mounting seat through the ninth threaded holes and the tenth threaded holes respectively.

10. The flash removing device for mobile terminal case according to claim 9, characterized in that: the distance between the end of the cutting blade and the bottom plate is far larger than the distance between the end of the motor and the bottom plate.

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