A MIC hole detection device

Abstract

The invention discloses a MIC hole detection device, which belongs to the detection field and is used for detecting whether a MIC hole is blocked. The MIC hole detection device comprises a load carrier assembly for carrying a product to be detected; an air extraction assembly comprises a pressure head, a sealing member and a pressure sensor, wherein the sealing member is sleeved on the pressure head and contacts with an edge of the MIC hole to wrap the MIC hole so that the MIC hole does not leak and the detection is more accurate; the pressure sensor is installed on the pressure head, and the adjustment assembly can adjust the pressure of the sealing member contacting the edge of the MIC hole to prevent the edge of the MIC hole from leaking and avoid crushing the product; the MIC hole is connected to the outside, and the air extraction assembly extracts air in the MIC hole and determines whether the MIC hole is blocked according to the flow rate. The detection process is simple and effective, and the detection device has a simple structure.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to a MIC hole detection device. 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 device 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 device is used to detect whether the MIC hole is blocked, and the MIC hole detection device includes a load tool assembly for carrying a product to be detected; an exhaust assembly including a pressure head, a seal and a pressure sensor, the seal is sleeved on the pressure head and contacts with the edge of the MIC hole to wrap the MIC hole, and the pressure sensor is installed on the pressure head; an adjustment assembly adjusts the pressure of the seal contacting the edge of the MIC hole; a pressure plate is used to install the adjustment assembly and drive the adjustment assembly and the exhaust assembly to move; the MIC hole is connected to the outside, and the exhaust assembly extracts air in the MIC hole to determine whether the MIC hole is blocked based on the flow rate.

[0007] Furthermore, the adjustment assembly includes a mounting plate and an adjustment rod, the mounting plate is elastically mounted on the pressure plate, and the adjustment rod is rotatably mounted on the mounting plate and contacts the pressure sensor to adjust the pressure of the seal contacting the edge of the MIC hole.

[0008] Furthermore, the exhaust assembly is elastically installed below the adjustment assembly, and the MIC hole detection device also includes an upper carrier assembly, which is provided with an exhaust channel. The exhaust assembly is located above the upper carrier assembly, and the seal and part of the pressure head extend into the exhaust channel.

[0009] Furthermore, the vacuum assembly also includes a first elastic member and a bearing, wherein two ends of the first elastic member respectively contact the pressure head and the mounting plate, and the bearing is fixed to the pressure head and mounted on the mounting plate so that the pressure head and the mounting plate are slidably connected.

[0010] Furthermore, the pressure head includes a plug-in part and a mounting boss located on the plug-in part, the plug-in part is provided with an exhaust hole, the sealing component is provided with a plug-in groove and a mounting groove located on the plug-in groove, the plug-in part is installed in the plug-in groove, the mounting boss is located in the mounting groove, and the plug-in groove is a reducing groove so that the pressure head and the sealing component are more tightly connected.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] Furthermore, the download jig assembly includes a download jig body and a positioning block, wherein the positioning block is installed on the download jig body to position the product to be inspected, the straight lines where the positioning blocks are located are perpendicular to each other, and the end of the positioning block facing the side of the product to be inspected is an arc surface, which is convenient for placing the product to be inspected.

[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 sealing member of the MIC hole detection device of the present invention is sleeved on the pressure head and contacts with the edge of the MIC hole to wrap the MIC hole, so that the MIC hole will not leak and the detection is more accurate; the pressure sensor is installed on the pressure head, and the adjustment component can adjust the pressure of the sealing member contacting the edge of the MIC hole to prevent the edge of the MIC hole from leaking while avoiding crushing the product; the MIC hole is connected to the outside, and the exhaust component extracts the air in the MIC hole and determines whether the MIC hole is blocked according to the flow rate. The detection process is simple and effective, and the detection device has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the MIC hole detection device of the present invention;

[0018] Figure 2for Figure 1 A partial exploded view of the MIC hole detection device;

[0019] Figure 3 for Figure 1 A partial structural stereogram of a MIC hole detection device;

[0020] Figure 4 for Figure 1 A three-dimensional diagram of an exhaust assembly;

[0021] Figure 5 for Figure 4 A partial structural exploded view of the air extraction assembly;

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

[0023] Figure 7 for Figure 1 A partial structural cross-sectional view of a MIC hole detection device;

[0024] Figure 8 for Figure 1 Another partial structural cross-sectional view of the MIC hole detection device;

[0025] Fig. 9 for Figure 8 A magnified view of the MIC hole detection device A.

[0026] 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; 33, pressure sensor; 34, joint; 35, first elastic member; 36, bearing; 40, adjustment assembly; 41, mounting plate; 42, second elastic member; 43, adjustment rod; 44, mounting pin; 50, pressure plate; 200, product to be tested; 301, first hole body; 302, second hole body. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Figure 1 The MIC hole detection device of the present invention is used to detect whether the MIC hole on the product to be detected 200 is blocked. The MIC hole detection device includes a lower carrier assembly 10, an upper carrier assembly 20, an air extraction assembly 30, an adjustment assembly 40 and a pressing plate 50.

[0031] Please continue reading Figure 2 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 of the lower carrier body 11 is placed.

[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] Please continue reading Figures 3 to 6 The air extraction assembly 30 includes a pressure head 31 , a sealing member 32 , a pressure sensor 33 , a joint 34 , a first elastic member 35 and a bearing 36 .

[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 to achieve sealing between the pressure head 31 and the MIC hole.

[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, and the third slot body 324 is located at the end of the seal 32 close to the MIC hole. 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. 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, so that the contact portion 325 can wrap the MIC hole.

[0046] The pressure sensor 33 is installed at the end of the pressure head 31 to detect the pressure between the contact portion 325 and the edge of the MIC hole, so as to keep the pressure within a preset range, prevent air leakage from the edge of the MIC hole, and avoid crushing the product 200 to be tested.

[0047] The connector 34 is installed on the pressure head 31 and communicated with the air extraction hole 312 . The connector 34 is connected to an external air extraction device so that the air extraction component 30 can extract gas.

[0048] The first elastic member 35 is mounted on the pressure head 31, and two ends of the first elastic member 35 are respectively in contact with the pressure head 31 and the mounting plate 41, so that the air extraction assembly 30 is elastically connected to the adjustment assembly 40. Specifically, the first elastic member 35 is a spring.

[0049] The bearing 36 is fixed to the pressure head 31 and mounted on the mounting plate 41 so that the pressure head 31 is slidably connected to the mounting plate 41. Specifically, the bearing 36 is a linear bearing.

[0050] The adjustment assembly 40 includes a mounting plate 41, a second elastic member 42, an adjustment rod 43, and a mounting pin 44. The mounting plate 41 is slidably mounted on the pressure plate 50, and a second elastic member 42 is provided between the mounting plate 41 and the pressure plate 50, and the second elastic member 42 enables the mounting plate 41 to be floatingly connected with the pressure plate 50. Specifically, the second elastic member 42 is a spring. The adjustment rod 43 is rotatably mounted on the mounting plate 41, and the adjustment rod 43 rotates relative to the mounting plate 41 to achieve vertical movement to resist the pressure between the pressure sensor 33 and the edge of the MIC hole. The mounting pin 44 is used to achieve the connection between the pressure head 31 and the mounting plate 41.

[0051] The pressing plate 50 is used to fix the upper carrier assembly 20 , and to install the air extraction assembly 30 and the adjustment assembly 40 .

[0052] Please continue reading Figure 7 When assembling the MIC hole detection device, the upper carrier assembly 20 is fixed to the pressure plate 50, the adjustment assembly 40 is floatingly installed on the pressure plate 50, the exhaust assembly 30 is floatingly installed on the adjustment assembly 40, and the sealing member 32 and part of the pressure head 31 extend into the exhaust channel 210.

[0053] Please continue reading Figures 8 to 9When using the MIC hole detection device, the product 200 to be detected is placed on the lower tool body 11 of the lower tool assembly 10, and is positioned by the positioning block 12, and the suction cup 13 sucks the product 200 to be detected, so that the product 200 to be detected cannot move. The pressure plate 50 drives the upper carrier assembly 20 to close with the lower tool assembly 10. At this time, the contact portion 325 of the seal 32 is in conflict with the edge of the MIC hole, and the vertical movement is achieved by rotating the adjustment rod 43 relative to the mounting plate 41 to adjust the pressure between the contact portion 325 and the edge of the MIC hole by the pressure sensor 33. The exhaust component 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. When the MIC hole is blocked or unsmooth, the gas flow rate extracted per unit time is less than the preset value. When the MIC hole is not blocked, the gas flow rate extracted per unit time is equal to the preset value.

[0054] The sealing member 32 of the MIC hole detection device of the present invention is sleeved on the pressure head 31 and contacts with the edge of the MIC hole to wrap the MIC hole, so that the MIC hole will not leak and the detection is more accurate; the pressure sensor 33 is installed on the pressure head 31, and the adjustment component 40 can adjust the pressure of the sealing member 32 contacting the edge of the MIC hole to prevent the edge of the MIC hole from leaking and avoid crushing the product 200 to be detected; the MIC hole is connected to the outside, and the exhaust component 30 extracts the air in the MIC hole and determines whether the MIC hole is blocked according to the flow rate. The detection process is simple and effective, and the detection device has a simple structure.

[0055] 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 device for detecting whether a MIC hole is blocked, characterized in that: The MIC hole detection device comprises The lower tooling assembly is used to carry the product to be tested; An air extraction component comprises a pressure head, a sealing member and a pressure sensor, wherein the pressure head comprises a plug-in portion and a mounting boss on the plug-in portion, an air extraction hole is arranged in the plug-in portion, the sealing member comprises a plug-in slot and a mounting slot on the plug-in slot, the plug-in slot comprises 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 a MIC hole, the second slot body is located at an end of the mounting slot close to the MIC hole, the size of the first slot body is larger than the size of the second slot body, the third slot body is located at an end of the second slot body away from the mounting slot, the size of the third slot body is smaller than the size of the second slot body, 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 sealing member is sleeved on the pressure head and contacts the edge of the MIC hole to wrap the MIC hole, and the pressure sensor is installed on the pressure head; An adjusting component for adjusting the pressure of the sealing member against the edge of the MIC hole; A pressing plate, used for installing the adjusting assembly and driving the adjusting assembly and the air extraction assembly to move; The MIC hole is communicated with the outside, and the air extraction component extracts air from the MIC hole to determine whether the MIC hole is blocked according to the flow rate.

2. The MIC hole detection device according to claim 1, characterized in that: The adjustment assembly includes a mounting plate and an adjustment rod. The mounting plate is elastically mounted on the pressure plate. The adjustment rod is rotatably mounted on the mounting plate and contacts the pressure sensor to adjust the pressure of the sealing member contacting the edge of the MIC hole.

3. The MIC hole detection device according to claim 2, characterized in that: The exhaust assembly is elastically installed below the adjustment assembly. The MIC hole detection device also includes an upper carrier assembly, which is provided with an exhaust channel. The exhaust assembly is located above the upper carrier assembly, and the seal and part of the pressure head extend into the exhaust channel.

4. The MIC hole detection device according to claim 3, characterized in that: The vacuum assembly also includes a first elastic member and a bearing. The two ends of the first elastic member are respectively in contact with the pressure head and the mounting plate. The bearing is fixed to the pressure head and mounted on the mounting plate so that the pressure head and the mounting plate are slidably connected.

5. The MIC hole detection device 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.

6. The MIC hole detection device according to claim 1, characterized in that: The download jig assembly includes a download jig body and a positioning block. The positioning block is installed on the download jig body to position the product to be inspected. The straight lines where the positioning blocks are located are perpendicular to each other. The end of the positioning block facing the side of the product to be inspected is an arc surface, which is convenient for placing the product to be inspected.

7. The MIC hole detection device according to claim 6, 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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