Mobile phone middle frame mic hole waste treatment jig
By designing a waste disposal fixture for the microphone hole in a mobile phone frame, and utilizing a high-pressure air source and a specific structure, the problem of incomplete waste disposal in the microphone hole is solved, achieving a stable and reliable waste disposal effect, and is suitable for various mobile phone frame sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HUAMAO ELECTRONICS CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-07
AI Technical Summary
In the existing technology, the removal of debris from the MIC hole in the mobile phone frame is incomplete and unstable. Traditional high-pressure air gun operation is prone to debris residue, and the existing debris blowing mechanism cannot effectively clean the debris inside the small hole.
A jig for cleaning debris from the microphone hole in a mobile phone frame has been designed. The jig includes a frame clamping fixture and a debris blowing assembly. It utilizes a high-pressure air source through a blowing suction cup and a debris blowing nozzle, combined with a limiting block and a universal bamboo tube structure, to ensure that the airflow directly enters the microphone hole to thoroughly clean the debris.
It achieves complete removal of debris from the MIC hole, improves processing stability and efficiency, avoids repetitive operations, and is suitable for mobile phone frame products of different sizes.
Smart Images

Figure CN224464261U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture and device technology, and in particular to a fixture for treating waste debris from the MIC hole in a mobile phone frame. Background Technology
[0002] The microphone hole in the phone frame needs to be CNC machined, and the waste generated during CNC machining will remain in the microphone hole in the phone frame; therefore, after the phone frame is CNC machined, a waste removal process for the microphone hole is required.
[0003] Traditionally, waste removal from microphone (MIC) holes is achieved using a high-pressure air gun. This involves manual operation of the air gun, with workers directing a high-pressure stream of air towards the MIC hole to remove the waste trapped inside. However, due to the instability of manual operation, incomplete waste removal is a common problem.
[0004] Furthermore, there is a Chinese utility model patent with patent number ZL202122149741.4 and titled "A Wear-Resistant and Scratch-Resistant Laser Engraving Fixture for Mobile Phone Buttons," which discloses a chip-blowing mechanism. Specifically, this chip-blowing mechanism includes a motor, and the output shaft of the motor is equipped with fan blades. That is, the chip-blowing mechanism blows away chips through the airflow generated by the fan blades driven by the motor. However, because the microphone hole in the mobile phone frame is small, the airflow generated by the fan blades cannot be effectively blown into the microphone hole, meaning it is not effectively suitable for chip removal from the microphone hole of the mobile phone frame. Utility Model Content
[0005] The purpose of this utility model is to provide a mobile phone mid-frame MIC hole waste disposal fixture to address the shortcomings of the existing technology. This mobile phone mid-frame MIC hole waste disposal fixture has a novel structural design and stable and reliable waste disposal.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.
[0007] A mobile phone mid-frame MIC hole waste disposal fixture includes a mid-frame clamping fixture and a waste blowing component mounted on the mid-frame clamping fixture.
[0008] The middle frame clamping fixture includes a fixture base plate and a middle frame mold core screwed onto the upper surface of the fixture base plate. The upper surface of the middle frame mold core is provided with a middle frame placement area, and the middle frame mold core is equipped with a number of spaced middle frame positioning pins in the middle frame placement area.
[0009] The chip blowing assembly is located on the side of the middle frame mold core, and the chip blowing assembly includes a cylinder pad block screwed to the base plate of the fixture. The cylinder pad block is equipped with a horizontally moving drive cylinder. The drive end of the drive cylinder is equipped with a blowing connection block. The blowing connection block has a blowing connection channel inside. The outlet of the blowing connection channel is connected to a blowing suction cup. The inlet of the blowing connection channel is connected to a connection block air inlet connector that is connected to a high-pressure air source.
[0010] The chip blowing assembly also includes a transfer block mounted on the base plate of the fixture and located next to the cylinder head gasket. The transfer block has a transfer channel inside, the outlet of the transfer channel is connected to a chip blowing nozzle, and the inlet of the transfer channel is connected to a transfer block air inlet connector that is connected to a high-pressure air source.
[0011] The chip blowing assembly further includes a limiting block screwed onto the base plate of the fixture and located between the drive cylinder and the middle frame mold core. A limiting guide groove is provided at the upper end of the limiting block, and the air blowing connecting block is slidably installed in the limiting guide groove of the limiting block.
[0012] The blowpipe is a universal bamboo-joint tube structure.
[0013] The middle frame mold core is equipped with several middle frame guides arranged at intervals around the middle frame placement area.
[0014] The fixture base plate is equipped with at least two locating pins arranged at intervals, and the upper end of each locating pin extends to the upper side of the fixture base plate.
[0015] The middle frame mold core has positioning pin holes for each positioning pin, and the upper end of each positioning pin is inserted into the corresponding positioning pin hole.
[0016] The mobile phone frame MIC hole waste disposal fixture is equipped with an auxiliary pressure plate, and the upper surface of the auxiliary pressure plate is equipped with a pressure plate handle.
[0017] Compared with the prior art, the present invention has the following beneficial effects, specifically:
[0018] 1. During the process of blowing out the debris from the MIC hole by the air suction cup, the air suction cup is in contact with the outer surface of the mobile phone frame. That is, the air suction cup can ensure that the compressed air in the air connection channel of the air connection block is completely blown into the MIC hole, so as to ensure that the debris in the MIC hole is completely blown out, with good stability and reliability.
[0019] 2. The blow-off nozzle can effectively blow the waste debris from the MIC hole away from the mobile phone mid-frame product, so as to avoid the need for further blow-off operation of the mobile phone mid-frame product, thereby improving work efficiency;
[0020] 3. Therefore, the waste disposal fixture for the MIC hole of the mobile phone frame of this utility model has the advantages of novel structural design and stable and reliable waste disposal. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] Figure 2 for Figure 1 A schematic diagram of its breakdown.
[0024] Figure 3 This is a structural schematic diagram from another perspective of the present invention.
[0025] exist Figures 1 to 3 This includes:
[0026] 1-Middle frame clamping fixture; 11-Jig base plate; 12-Middle frame mold core; 121-Middle frame placement area; 122-Positioning pin hole; 13-Middle frame positioning pin; 14-Middle frame guide; 15-Positioning pin; 161-Auxiliary pressure plate; 162-Pressure plate handle; 2-Device blowing assembly; 21-Cylinder pad block; 22-Drive cylinder; 231-Blowing connecting block; 232-Blowing suction cup; 233-Connecting block air inlet connector; 241-Adapter block; 242-Device blowing nozzle; 243-Adapter block air inlet connector; 25-Limiting block; 251-Limiting guide groove; 3-Mobile phone middle frame product. Detailed Implementation
[0027] The present invention will now be described in conjunction with specific embodiments.
[0028] Example 1, as Figures 1 to 3 As shown, a mobile phone mid-frame MIC hole waste disposal fixture includes a mid-frame clamping fixture 1 and a waste blowing assembly 2 installed on the mid-frame clamping fixture 1.
[0029] Among them, such as Figures 1 to 3 As shown, the middle frame clamping fixture 1 includes a fixture base plate 11 and a middle frame mold core 12 screwed onto the upper surface of the fixture base plate 11. The upper surface of the middle frame mold core 12 is provided with a middle frame placement area 121, and the middle frame mold core 12 is provided with a plurality of spaced middle frame positioning pins 13 in the middle frame placement area 121.
[0030] Furthermore, such as Figures 1 to 3As shown, the chip blowing assembly 2 is located on the side of the middle frame mold core 12, and the chip blowing assembly 2 includes a cylinder pad block 21 screwed onto the fixture base plate 11. The cylinder pad block 21 is equipped with a horizontally moving drive cylinder 22. The drive end of the drive cylinder 22 is equipped with a blowing connection block 231. The blowing connection block 231 has a blowing connection channel inside. The air outlet of the blowing connection channel is connected to a blowing suction cup 232. The air inlet of the blowing connection channel is connected to a connecting block air inlet connector 233 connected to a high-pressure air source.
[0031] Furthermore, such as Figures 1 to 3 As shown, the chip blowing assembly 2 also includes a converter block 241 installed on the fixture base plate 11 and located next to the cylinder gasket block 21. The converter block 241 has a converter channel inside. The outlet of the converter channel is connected to a chip blowing nozzle 242, and the inlet of the converter channel is connected to a converter block air inlet connector 243 connected to a high-pressure air source.
[0032] It should be explained that the high-pressure air source in this embodiment can be a high-pressure air pump. The connecting block air inlet 233 and the adapter block air inlet 243 are respectively connected to the high-pressure air pump through corresponding air pipes, and each air pipe is equipped with a solenoid valve for controlling the on and off. When compressed air needs to be supplied to the connecting block air inlet 233 and the adapter block air inlet 243, the controller can control the operation of each solenoid valve to make the corresponding air pipe unobstructed.
[0033] The specific steps in using the mobile phone mid-frame MIC hole waste disposal fixture of this embodiment to process waste from the MIC hole of a mobile phone mid-frame include:
[0034] Step a: Place the mobile phone mid-frame product 3 in the mid-frame placement area 121 of the mid-frame mold core 12, and insert each mid-frame positioning pin 13 on the mid-frame mold core 12 into the structural hole of the mobile phone mid-frame product 3. By cooperating with the structural hole of the mobile phone mid-frame product 3, the mobile phone mid-frame product 3 is accurately placed in the mid-frame placement area 121 of the mid-frame mold core 12.
[0035] Step b: After the mobile phone mid-frame product 3 is positioned, the drive cylinder 22 is activated and pushes the air blowing connecting block 231 toward the side of the mobile phone mid-frame product 3, and finally makes the air blowing suction cup 232 abut against the outer opening of the MIC hole of the mobile phone mid-frame product 3.
[0036] Step c: After the driving cylinder 22 drives the air blowing connecting block 231 into position, compressed air is introduced into the connecting block air inlet 233 and the adapter block air inlet 243 respectively. At this time, the air blowing suction cup 232 blows the compressed air into the MIC hole of the mobile phone mid-frame product 3, and the dust blowing nozzle 242 blows compressed air towards the inner opening of the MIC hole. During this process, the airflow blown by the air blowing suction cup 232 blows the waste debris in the MIC hole inward, and the airflow blown by the dust blowing nozzle 242 blows the waste debris discharged from the MIC hole away from the mobile phone mid-frame product 3.
[0037] Step d: After the blowing action is completed, the air inlet connector 233 of the connecting block and the air inlet connector 243 of the adapter block stop supplying compressed air, and the drive cylinder 22 drives the blowing connecting block 231 away from the mobile phone mid-frame product 3. Then, the mobile phone mid-frame product 3 can be removed from the mid-frame mold core 12.
[0038] It should be emphasized that during the process of blowing out the debris from the MIC hole by the air suction cup 232, the air suction cup 232 abuts against the outer surface of the mobile phone frame product 3. That is, the air suction cup 232 can ensure that the compressed air in the air connection channel of the air connection block 231 is completely blown into the MIC hole, so as to ensure that the debris in the MIC hole is completely blown out, which is stable and reliable.
[0039] It should be further emphasized that the blow-off nozzle 242 can effectively blow the waste debris blown out of the MIC hole away from the mobile phone mid-frame product 3, so as to avoid the need for further blow-off operation of the mobile phone mid-frame product 3, thereby improving the work efficiency.
[0040] In addition, for the mobile phone mid-frame MIC hole waste disposal fixture in this embodiment, for a mobile phone mid-frame product 3 with multiple MIC holes, multiple blow-off components 2 can be set to realize the synchronous blow-off operation of multiple MIC holes of the mobile phone mid-frame product 3, thereby improving work efficiency.
[0041] In summary, the mobile phone mid-frame MIC hole waste disposal fixture of this embodiment has the advantages of novel structural design and stable and reliable waste disposal through the above structural design.
[0042] Example 2, as Figures 1 to 3 As shown, the difference between this embodiment 2 and embodiment 1 is that the chip blowing assembly 2 further includes a limiting block 25 screwed onto the fixture base plate 11 and located between the drive cylinder 22 and the middle frame mold core 12. The upper end of the limiting block 25 has a limiting guide groove 251, and the air blowing connecting block 231 is slidably installed in the limiting guide groove 251 of the limiting block 25.
[0043] For the limiting block 25 in this embodiment, the limiting guide groove 251 ensures the accuracy of the movement of the air blowing connecting block 231.
[0044] It should be noted that the mid-frame mold core 12, cylinder gasket 21, and limit block 25 in this embodiment are replaceable structures. When in use, they can be adjusted according to different sizes of mobile phone mid-frame products 3 to improve the adaptability of the mobile phone mid-frame MIC hole waste disposal fixture in this embodiment.
[0045] Example 3, as Figures 1 to 3 As shown, the difference between this embodiment three and embodiment one is that the chip blowing nozzle 242 is a universal bamboo joint tube structure.
[0046] For the chip blowing nozzle 242 with a universal bamboo joint tube structure, the user can adjust the position of the chip blowing nozzle 242 according to the usage requirements to improve the convenience of use.
[0047] Example 4, as Figures 1 to 3 As shown, the difference between this embodiment four and embodiment one is that: the middle frame mold core 12 is equipped with a number of middle frame guide members 14 arranged sequentially at intervals on the periphery of the middle frame placement area 121.
[0048] When the mobile phone mid-frame product 3 is placed in the mid-frame placement area 121 of the mid-frame mold core 12, this embodiment four can guide the mobile phone mid-frame product 3 through multiple mid-frame guides 14 to ensure that the mobile phone mid-frame product 3 is quickly placed in the mid-frame placement area 121 of the mid-frame mold core 12.
[0049] Example 5, as Figure 2 As shown, the difference between this fifth embodiment and the first embodiment is that the fixture base plate 11 is equipped with at least two positioning pins 15 arranged at intervals, and the upper end of each positioning pin 15 extends to the upper side of the fixture base plate 11.
[0050] The middle frame mold core 12 has positioning pin holes 122 for each positioning pin 15, and the upper end of each positioning pin 15 is inserted into the corresponding positioning pin hole 122.
[0051] By using the positioning pin 15 to cooperate with the positioning pin hole 122, this fifth embodiment can effectively improve the convenience of assembling the middle frame mold core 12.
[0052] Example 6, as Figures 1 to 3 As shown, the difference between this sixth embodiment and the first embodiment is that the mobile phone frame MIC hole waste disposal fixture is equipped with an auxiliary pressure plate 161, and the upper surface of the auxiliary pressure plate 161 is equipped with a pressure plate handle 162.
[0053] When blowing away debris from the MIC hole of the mobile phone frame product 3, the user can press the auxiliary pressure plate 161 downwards through the pressure plate handle 162 so that the auxiliary pressure plate 161 presses down on the mobile phone frame product 3 to prevent the mobile phone frame product 3 from shifting during the blowing operation.
[0054] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A mobile phone middle frame MIC hole waste treatment jig, comprising a middle frame clamping jig (1) and a blowing waste assembly (2) arranged on the middle frame clamping jig (1). characterized in that The middle frame clamping jig (1) comprises a jig bottom plate (11) and a middle frame mold core (12) screwed on the upper surface of the jig bottom plate (11), and the upper surface of the middle frame mold core (12) is provided with a middle frame placement area (121), and the middle frame mold core (12) is arranged with a plurality of spaced middle frame positioning pins (13) in the middle frame placement area (121). The blowing waste assembly (2) is located beside the middle frame mold core (12), and the blowing waste assembly (2) comprises a cylinder pad (21) screwed on the jig bottom plate (11), and the cylinder pad (21) is arranged with a driving cylinder (22) moving horizontally, and the driving end of the driving cylinder (22) is arranged with a blowing connection block (231), and the inside of the blowing connection block (231) is provided with a blowing connection channel, and the gas outlet of the blowing connection channel is connected with a blowing suction cup (232), and the gas inlet of the blowing connection channel is connected with a connection block gas inlet connector (233) connected with a high-pressure gas source. The blowing waste assembly (2) further comprises an adapter block (241) arranged on the jig bottom plate (11) and located beside the cylinder pad (21), and the inside of the adapter block (241) is provided with an adapter channel, and the gas outlet of the adapter channel is connected with a blowing waste spray pipe (242), and the gas inlet of the adapter channel is connected with an adapter block gas inlet connector (243) connected with a high-pressure gas source.
2. The mobile phone middle frame MIC hole waste treatment jig according to claim 1, characterized in that: The blowing waste assembly (2) further comprises a limiting block (25) screwed on the jig bottom plate (11) and located between the driving cylinder (22) and the middle frame mold core (12), and the upper end of the limiting block (25) is provided with a limiting guide groove (251), and the blowing connection block (231) is slidingly installed in the limiting guide groove (251) of the limiting block (25).
3. The mobile phone middle frame MIC hole waste treatment jig according to claim 1, characterized in that: The blowing waste spray pipe (242) is a universal bamboo joint pipe structure.
4. The mobile phone middle frame MIC hole waste treatment jig according to claim 1, characterized in that: The middle frame mold core (12) is arranged with a plurality of middle frame guide pieces (14) arranged in sequence and spaced apart on the periphery of the middle frame placement area (121).
5. The mobile phone middle frame MIC hole waste treatment jig according to claim 1, characterized in that: The jig bottom plate (11) is arranged with at least two positioning pins (15) arranged in sequence and spaced apart, and the upper ends of the positioning pins (15) respectively extend to the upper end side of the jig bottom plate (11). The middle frame mold core (12) is respectively provided with a positioning pin hole (122) corresponding to each positioning pin (15), and the upper ends of the positioning pins (15) are respectively inserted into the corresponding positioning pin holes (122).
6. The mobile phone middle frame MIC hole waste treatment jig according to claim 1, characterized in that: The mobile phone middle frame MIC hole waste treatment jig is provided with an auxiliary pressing plate (161), and the upper surface of the auxiliary pressing plate (161) is arranged with a pressing plate handle (162).