A MIC hole detection fixture

Abstract

The invention discloses a MIC hole detection jig, which belongs to the field of jigs and is used to detect whether a MIC hole is blocked. The MIC hole detection jig comprises a lower jig component and an upper jig component. The lower jig component is used to carry a product to be detected. The upper jig component is provided with an exhaust channel. The MIC hole detection jig also comprises an exhaust component. The exhaust component comprises a pressure head and a sealing member. The pressure head comprises a plug-in portion and a mounting boss located on the plug-in portion. An exhaust hole is arranged in the plug-in portion. The sealing member is provided with a plug-in slot and a mounting slot located on the plug-in slot. The plug-in portion is installed in the plug-in slot. The mounting boss is located in the mounting slot. The plug-in slot is a reducing slot so that the pressure head and the sealing member are more tightly connected. The plug-in portion and the sealing member are installed in the exhaust channel. The end of the sealing member wraps the MIC hole on the product to be detected. The exhaust hole is connected with the MIC hole, and the MIC hole is connected with the outside. Air in the MIC hole is extracted by the exhaust component, and whether the MIC hole is blocked is judged according to the flow rate. The detection process is simple and effective, the accuracy is high, and the detection jig has a simple structure.

Description

Technical Field

[0001] The invention relates to a jig, and in particular to a MIC hole detection jig. Background Art

[0002] As we all know, the mobile phone mic hole refers to the microphone hole on the mobile phone. The mobile phone mic hole is located on the frame of the mobile phone. Mic is the abbreviation of Microphone, which refers to the microphone. The mobile phone mic hole is a small hole on the mobile phone used to pick up and transmit sound.

[0003] Due to its small size, the mic hole is easy to be blocked during the injection molding process, so it needs to be inspected before leaving the factory. The existing inspection equipment cannot achieve the precision required for the mic hole, resulting in inaccurate inspection. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a MIC hole detection fixture with high precision and accurate detection.

[0005] One of the purposes of the present invention is achieved by the following technical solution:

[0006] A MIC hole detection jig is used to detect whether a MIC hole is blocked. The MIC hole detection jig comprises a lower jig assembly and an upper jig assembly. The lower jig assembly is used to carry a product to be detected. The upper jig assembly is provided with an exhaust channel. The MIC hole detection jig also comprises an exhaust assembly. The exhaust assembly comprises a pressure head and a sealing member. The pressure head comprises a plug-in portion and a mounting boss located on the plug-in portion. An exhaust hole is provided in the plug-in portion. The sealing member is provided with a plug-in slot and a mounting slot located on the plug-in slot. The plug-in portion is installed in the plug-in slot. The mounting boss is located in the mounting slot. The plug-in slot is a reducing slot so that the pressure head and the sealing member are more tightly connected. The plug-in portion and the sealing member are installed in the exhaust channel. The end of the sealing member wraps the MIC hole on the product to be detected. The exhaust hole is connected to the MIC hole, and the MIC hole is connected to the outside. The air in the MIC hole is extracted by the exhaust assembly to determine whether the MIC hole is blocked according to the flow rate.

[0007] Furthermore, the plug-in slot includes a first slot body and a second slot body, the first slot body and the second slot body are respectively located at opposite ends of the mounting slot, the first slot body is located at an end of the mounting slot away from the MIC hole, the second slot body is located at an end of the mounting slot close to the MIC hole, and the size of the first slot body is larger than the size of the first slot body.

[0008] Furthermore, the plug-in slot also includes a third slot body, which is located at an end of the second slot body away from the installation slot, and the size of the third slot body is smaller than the size of the second slot body.

[0009] Furthermore, the size of the installation slot is larger than the size of the plug-in slot.

[0010] Furthermore, the sealing member is also provided with a chamfer, and the chamfer is located at the end of the plug-in groove to facilitate the plug-in of the pressure head.

[0011] Furthermore, the sealing member is further provided with a contact portion, which is a hollow structure, the size of which is larger than the size of the MIC hole, and the contact portion contacts the edge of the MIC hole and wraps the MIC hole.

[0012] Furthermore, the tool assembly includes a tool body and a positioning block, and the positioning block is installed on the tool body to position the product to be inspected.

[0013] Furthermore, the straight lines on which the positioning blocks are located are perpendicular to each other.

[0014] Furthermore, the end of the positioning block facing the product to be detected is a curved surface, which is convenient for placing the product to be detected.

[0015] Furthermore, the carrier assembly also includes a suction cup, which is installed on the carrier body. The carrier body is provided with an air passage, which is connected to the suction cup to provide negative pressure for the suction cup to suck the product to be tested.

[0016] Compared with the prior art, the mounting boss of the MIC hole detection fixture of the present invention is located in the mounting groove so that the seal and the pressure head are not easily separated; the plug-in groove is a reducing groove so that the pressure head and the seal are more tightly connected; the end of the seal wraps the MIC hole on the product to be detected so that the MIC hole will not leak and the detection is more accurate; the MIC hole is connected to the outside, and the air in the MIC hole is extracted through the exhaust component to determine whether the MIC hole is blocked according to the flow rate; the detection process is simple and effective, and the detection fixture has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional image of the product to be tested;

[0018] Figure 2 for Figure 1 An enlarged view of the product A to be tested;

[0019] Figure 3 A three-dimensional diagram of the MIC hole detection fixture of the present invention;

[0020] Figure 4 for Figure 3 Exploded view of the MIC hole detection fixture;

[0021] Figure 5 for Figure 2 Exploded view of the exhaust assembly of the MIC hole detection fixture;

[0022] Figure 6 for Figure 5 A cross-sectional view of a seal of an air extraction assembly;

[0023] Figure 7 for Figure 3 Schematic diagram of the local structure of the MIC hole detection fixture;

[0024] Figure 8 for Figure 7 An enlarged view of the MIC hole detection fixture B.

[0025] In the figure: 10, lower tool assembly; 11, lower tool body; 12, positioning block; 13, suction cup; 20, upper carrier assembly; 21, upper carrier body; 210, exhaust channel; 22, guide column; 30, exhaust assembly; 31, pressure head; 310, plug-in part; 311, mounting boss; 312, exhaust hole; 32, sealing member; 320, chamfer; 321, first slot body; 322, mounting slot; 323, second slot body; 324, third slot body; 325, contact part; 200, product to be tested; 300, MIC hole; 301, first hole body; 302, second hole body. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] Figure 1 to Figure 2 The product to be detected 200 to be detected by the MIC hole detection fixture of the present invention is provided with a MIC hole 300 on the product to be detected 200, and the MIC hole 300 includes a first hole body 301 and a second hole body 302. The first hole body 301 is connected to the second hole body 302. The first hole body 301 is located inside the product to be detected 200, the second hole body 302 is located at the end of the product to be detected 200, and the second hole body 302 is connected to the outside.

[0030] Please continue reading Figures 3 to 6 The MIC hole detection fixture includes a lower carrier assembly 10 , an upper carrier assembly 20 and an exhaust assembly 30 .

[0031] The tool assembly 10 includes a tool body 11 , a positioning block 12 and a suction cup 13 .

[0032] An air passage is provided inside the main body 11 of the lower tool, and the air passage provides negative pressure to the suction cup 13 so that the suction cup 13 can suck the product 200 to be inspected.

[0033] The positioning block 12 is installed on the lower tool body 11. The end of the positioning block 12 facing the side of the product 200 to be detected is an arc surface, which facilitates the placement of the product 200 to be detected on the lower tool body 11 and prevents the product 200 to be detected from colliding with the positioning block 12 and causing damage during the placement process. There are multiple positioning blocks 12, and the straight lines where the multiple positioning blocks 12 are located are perpendicular to each other, so that the four sides of the product 200 to be detected can be positioned.

[0034] The suction cup 13 is installed on the lower tool body 11 and communicated with the airway. The suction cup 13 sucks the product 200 to be detected so that the product 200 to be detected is accurately positioned.

[0035] The upper carrier assembly 20 includes an upper carrier body 21 and a guide post 22 .

[0036] The upper carrier body 21 is provided with an air extraction channel 210. The air extraction channel 210 is located just above the position where the MIC hole 300 is placed on the lower carrier body 11.

[0037] The guide post 22 is fixed to the upper carrier body 21. When the upper carrier assembly 20 and the lower carrier assembly 10 are closed, the guide post 22 plays a guiding role.

[0038] The air extraction assembly 30 includes a pressure head 31 and a sealing member 32 .

[0039] The pressure head 31 includes a plug-in portion 310 and a mounting boss 311. The plug-in portion 310 is provided with an air extraction hole 312, and the air extraction hole 312 is located at the center of the plug-in portion 310. The mounting boss 311 is located in the middle of the pressure head 31.

[0040] The sealing member 32 is made of elastic material and is installed on the pressure head 31 and contacts the MIC hole 300 to achieve sealing between the pressure head 31 and the MIC hole 300 .

[0041] The sealing member 32 is provided with a chamfer 320 , an inserting groove, a mounting groove 322 and a contact portion 325 .

[0042] The chamfer 320 facilitates the plugging of the sealing member 32 with the plug-in portion 310 of the pressing head 31 .

[0043] The plug-in slot includes a first slot body 321, a second slot body 323 and a third slot body 324. The plug-in slot is a reducing slot. In the present embodiment, the plug-in slot is a rectangular reducing slot. The second slot body 323 is located between the first slot body 321 and the third slot body 324. The first slot body 321 is located at the end of the seal 32 away from the MIC hole 300, and the third slot body 324 is located at the end of the seal 32 close to the MIC hole 300. The size of the first slot body 321 is larger than the size of the second slot body 323, and the size of the second slot body 323 is larger than the size of the third slot body 324. In the present embodiment, the width of the first slot body 321 is 1.65 mm, the width of the second slot body 323 is 1 mm, and the width of the third slot body 324 is 0.8 mm. Setting the plug-in slot as a reducing slot can make it difficult to separate the plug-in slot and the plug-in portion 310 after being plugged in, so that the seal 32 and the pressure head 31 are more tightly connected.

[0044] The mounting groove 322 is located between the first groove body 321 and the second groove body 323, and the size of the mounting groove 322 is larger than the size of the first groove body 321 and the size of the second groove body 323. The shape and size of the mounting groove 322 correspond to the shape and size of the mounting boss 311. The mounting boss 311 is installed in the mounting groove 322 to position the seal 32 and the pressure head 31. During the installation of the mounting boss 311, the first groove body 321 is deformed by force.

[0045] The contact portion 325 is located at the end of the sealing member 32 and at one end of the third groove 324 close to the MIC hole 300. The contact portion 325 is a hollow structure, which makes the contact portion 325 easy to deform. The size of the contact portion 325 is larger than the size of the MIC hole 300, so that the contact portion 325 can wrap the MIC hole 300.

[0046] Please continue reading Figures 7 and 8When using the MIC hole detection fixture, the product 200 to be detected is placed on the lower jig body 11 of the lower jig assembly 10, and is positioned by the positioning block 12. The suction cup 13 sucks the product 200 to prevent the product 200 from moving. The upper carrier assembly 20 is closed with the lower jig assembly 10. The seal 32 is installed on the plug-in portion 310 of the pressure head 31. The exhaust assembly 30 is installed in the exhaust channel 210 of the upper carrier assembly 20. At this time, the contact portion 325 of the seal 32 conflicts with the edge of the MIC hole 300. The exhaust assembly 30 exhausts air through the exhaust hole 312, and exhausts air through the first hole body 301 and the second hole body 302 of the MIC hole 300. When the MIC hole 300 is blocked or unsmooth, the gas flow rate extracted per unit time is less than the preset value. When the MIC hole 300 is not blocked, the gas flow rate extracted per unit time is equal to the preset value.

[0047] The mounting boss 311 of the MIC hole detection fixture of the present invention is located in the mounting groove 322, so that the seal 32 and the pressure head 31 are not easily separated. The plug-in groove is a reducing groove, so that the pressure head 31 and the seal 32 are more tightly connected. The end of the seal 32 wraps the MIC hole 300 on the product 200 to be detected, so that the MIC hole 300 will not leak, and the detection is more accurate; the MIC hole 300 is connected to the outside, and the air in the MIC hole 300 is extracted through the exhaust component 30 to determine whether the MIC hole 300 is blocked according to the flow rate. The detection process is simple and effective, and the detection fixture has a simple structure.

[0048] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A MIC hole detection jig for detecting whether a MIC hole is blocked, the MIC hole detection jig comprising a lower tool assembly and an upper tool assembly, the lower tool assembly being used to carry a product to be detected, characterized in that: The upper carrier assembly is provided with an exhaust channel, the MIC hole detection fixture also includes an exhaust assembly, the exhaust assembly includes a pressure head and a sealing member, the pressure head includes a plug-in portion and a mounting boss located on the plug-in portion, an exhaust hole is provided in the plug-in portion, the sealing member is provided with a plug-in slot and a mounting slot located on the plug-in slot, the plug-in slot includes a first slot body, a second slot body and a third slot body, the first slot body and the second slot body are respectively located at opposite ends of the mounting slot, the first slot body is located at an end of the mounting slot away from the MIC hole, the second slot body is located at an end of the mounting slot close to the MIC hole, and the first slot body The size of the third slot body is larger than that of the first slot body, the third slot body is located at one end of the second slot body away from the installation slot, the size of the third slot body is smaller than that of the second slot body, the plug-in portion is installed in the plug-in slot, the installation boss is located in the installation slot, the plug-in slot is a reducing slot to make the pressure head and the seal more tightly connected, the plug-in portion and the seal are installed in the exhaust channel, the end of the seal wraps the MIC hole on the product to be tested, the exhaust hole is connected to the MIC hole, the MIC hole is connected to the outside, the air in the MIC hole is extracted by the exhaust component, and the MIC hole is judged whether it is blocked according to the flow rate.

2. The MIC hole detection fixture according to claim 1, characterized in that: The size of the installation slot is larger than the size of the plug-in slot.

3. The MIC hole detection fixture according to claim 1, characterized in that: The sealing member is also provided with a chamfer, and the chamfer is located at the end of the insertion groove to facilitate the insertion of the pressure head.

4. The MIC hole detection fixture according to claim 1, characterized in that: The sealing member is further provided with a contact portion, which is a hollow structure. The size of the contact portion is larger than the size of the MIC hole. The contact portion contacts the edge of the MIC hole and wraps the MIC hole.

5. The MIC hole detection fixture according to claim 1, characterized in that: The tool assembly includes a tool body and a positioning block, and the positioning block is installed on the tool body to position the product to be detected.

6. The MIC hole detection fixture according to claim 5, characterized in that: The straight lines where the positioning blocks are located are perpendicular to each other.

7. The MIC hole detection fixture according to claim 5, characterized in that: The end of the positioning block facing the product to be detected is an arc surface, which is convenient for placing the product to be detected.

8. The MIC hole detection fixture according to claim 5, characterized in that: The carrier assembly also includes a suction cup, which is mounted on the carrier body. The carrier body is provided with an air passage, which is connected to the suction cup to provide negative pressure for the suction cup to suck the product to be tested.

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