CN112683469B

CN112683469B - Tightness detection equipment

Info

Publication number: CN112683469B
Application number: CN202011363356.3A
Authority: CN
Inventors: 吕新奎; 占传福; 何宇飞; 吴玉海; 高云峰
Original assignee: Han s Laser Technology Industry Group Co Ltd
Current assignee: Han s Laser Technology Industry Group Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2023-07-04
Anticipated expiration: 2040-11-27
Also published as: CN112683469A

Abstract

The invention provides tightness detection equipment which comprises a jig, a pressing module and a tightness detection instrument. The jig is used for bearing detection materials; the pressing module can relatively detect that the material is close to and far away from, one side of the pressing module, which is close to the material, is provided with an air hole, the pressing module presses the material, a first sealing cavity can be formed between the pressing module and the material, and the air hole is communicated with the first sealing cavity; the seal detection instrument is used for detecting the air pressure of the first seal cavity. When the airtight detection is required to be carried out on the detection material, the detection material is manually placed on the jig, then the first sealing cavity is inflated through the air hole, after the inflation is finished and a certain period of time is kept, the sealing detection instrument starts to detect the air pressure in the first sealing cavity at a preset time point and compares the air pressure with a standard value, and a detector can rapidly judge whether the airtight of the detection material is good or bad through the air pressure change condition in the first sealing cavity, so that the detection speed is high and the accuracy is high.

Description

Tightness detection equipment

Technical Field

The invention relates to the technical field of tightness detection, in particular to tightness detection equipment.

Background

As mobile phones become more popular in life, so too does the performance requirements of people for mobile phones. The mobile phone rear shell is used as an important part of the mobile phone, the influence on the safety performance of the mobile phone is large, if the mobile phone rear shell is provided with a tiny gap or crack, the air tightness of the mobile phone is very poor, so that air can easily enter the mobile phone, and the air in the general air can contain water vapor, corrosive gas and the like. Therefore, the method is particularly important for the air tightness prevention detection of the mobile phone rear shell. However, in the prior art, the air tightness of the mobile phone rear shell is mostly detected manually, so that the detection speed is low and the accuracy is poor when the air tightness of the mobile phone rear shell is detected.

Disclosure of Invention

Based on the above, it is necessary to provide a leak tightness detection device for the technical problems of low leak tightness detection speed and poor accuracy of the mobile phone rear case.

A tightness detection apparatus, comprising:

the jig is used for bearing detection materials;

the pressing module can perform approaching movement and separating movement relative to the detection material, and an air hole is formed in one side, close to the detection material, of the pressing module; the pressing module presses the detection materials, a first sealing cavity can be formed between the pressing module and the detection materials, and the air hole is communicated with the first sealing cavity;

and the seal detection instrument is used for detecting the air pressure of the first seal cavity.

In one embodiment, the tightness detection device further comprises a mounting seat, and the pressing module comprises a first pressing plate;

the first pressing plate is connected to the mounting seat in a sliding manner, the first pressing plate can do approaching movement and moving away from the detection material relatively, and a first pressing part is arranged on one side of the first pressing plate, which is close to the detection material; when the first pressing plate moves close to the detection material, the first pressing part can extend into the shell groove of the detection material and is pressed against the detection material, the first sealing cavity is arranged between the first pressing part and the detection material, and the air hole is formed in the first pressing part.

In one embodiment, the pressing module further includes a first driving member and a first slider, an output end of the first driving member is connected with the first slider, one side of the first slider is slidably connected with the mounting seat, the other side of the first slider is fixedly connected with the first pressing plate, and the first driving member can drive the first slider to move close to and away from the detection material relatively.

In one embodiment, the pressing module further includes a second pressing plate slidably connected to the mounting seat or the first pressing plate, and a second pressing portion is disposed on a side of the second pressing plate, which is close to the detection material; when the second pressing plate moves close to the detection material, the second pressing part can be abutted against and pressed against the first pressing part, a second sealing cavity is formed between the second pressing part and the first pressing part, and the air hole is communicated with the second sealing cavity.

In one embodiment, the second pressing plate includes a ventilation channel, one end of the ventilation channel is communicated with the second sealing cavity, the ventilation channel is communicated with the air hole, the first sealing cavity is communicated with the second sealing cavity, and gas in the second sealing cavity can enter the first sealing cavity through the air hole.

In one embodiment, the jig is further provided with an avoidance groove, the avoidance groove is recessed along one side far away from the detection material, a pressure relief hole is formed in the avoidance groove, and the first sealing cavity is communicated with the pressure relief hole.

In one embodiment, the first pressing portion is further provided with a water-dripping hole, and the tightness detection device further comprises a water-dripping module;

the water injection module can inject water into the water injection hole, water in the water injection hole can fall onto the position of the detection material corresponding to the water injection hole, and the ventilation channel is communicated with the water injection hole.

In one embodiment, the pressing module further includes a second driving member and a second slider, an output end of the second driving member is connected with the second slider, one side of the second slider is slidably connected with the mounting seat, the other side of the second slider is fixedly connected with the second pressing plate, and the second driving member can drive the second pressing portion to move close to and away from the first pressing portion.

In one embodiment, the tightness detection device further comprises an intermediate sealing ring, wherein one side of the intermediate sealing ring is in sealing connection with one side of the first pressing part, which is far away from the detection material; the first pressing part presses the second pressing part, and the other side of the middle sealing ring can be pressed on one side, close to the first pressing part, of the second pressing part in a sealing mode.

In one embodiment, the tightness detection device further comprises an air sealing ring, wherein one side of the air sealing ring is connected with one side of the first pressing part, close to the detection material, in a sealing way; the first pressing part presses the detection material, and the other side of the air sealing ring can be tightly pressed on the detection material.

In one embodiment, the tightness detection device further comprises a water sealing ring, wherein one side of the water sealing ring is in sealing connection with one end of the water point hole close to the detection material; the first pressing part presses the detection material, and the other side of the water sealing ring can be tightly pressed on the detection material.

In one embodiment, the spot water module comprises a spot water moving assembly and a spot water head;

the spot water moving assembly is used for moving the spot water head to the position above the spot water hole.

In one embodiment, the tightness detection device further comprises a jig moving assembly, wherein the jig moving assembly comprises a guide rail, a fixed block and a fourth driving piece;

the fixed block is connected with the guide rail in a sliding manner, the fixed block is connected with the power output end of the fourth driving piece, the jig is installed on the fixed block, the fourth driving piece can drive the fixed block to move along the first direction, and the jig can move synchronously with the fixed block.

The invention has the beneficial effects that:

the invention provides tightness detection equipment which comprises a jig, a pressing module and a tightness detection instrument. The jig is used for bearing detection materials; the pressing module can make approaching movement and separating movement relative to the detection material, an air hole is formed in one side, close to the detection material, of the pressing module, the pressing module presses the detection material, a first sealing cavity can be formed between the pressing module and the detection material, and the air hole is communicated with the first sealing cavity; the seal detection instrument is used for detecting the air pressure of the first seal cavity.

When the airtight detection is required to be carried out on the detection material, the detection material is manually placed on the jig, and then the pressing module moves close to the detection material, so that the pressing module is pressed with the detection material and a first sealing cavity is formed between the pressing module and the detection material. The air hole is used for inflating the first sealing cavity, after the air hole is inflated and kept for a certain period of time, the sealing detection instrument starts to detect the air pressure in the first sealing cavity at a preset time point and compares the air pressure with a standard value, if the air tightness of a detection material is poor, the air pressure in the first sealing cavity can be greatly fluctuated, and as the first sealing cavity is between the pressing module and the detection material, a detector can rapidly judge the air tightness of the detection material through the air pressure change condition in the first sealing cavity, and the detection speed is high and the accuracy is high.

Drawings

FIG. 1 is a schematic diagram of a tightness detection device according to an embodiment of the present invention;

FIG. 2 is a partial exploded view of the leak detection apparatus shown in FIG. 1;

FIG. 3 is a schematic diagram illustrating connection between a pressing module and a seal detecting instrument of the seal detecting apparatus shown in FIG. 1;

FIG. 4 is a first schematic view of a first nip of the tightness detection device shown in FIG. 1;

FIG. 5 is a second schematic view of the first nip of the tightness detection device shown in FIG. 1;

FIG. 6 is a schematic view of a second nip of the tightness detection device shown in FIG. 1;

fig. 7 is a first schematic view of the tightness detection device shown in fig. 1 when the first pressing portion and the second pressing portion are pressed against the rear case of the mobile phone placed in the jig;

FIG. 8 is a top view of the tightness detecting apparatus shown in FIG. 1, wherein the first pressing portion and the second pressing portion are pressed against a rear case of a mobile phone placed in the jig;

FIG. 9 is a cross-sectional view of the tightness detecting apparatus shown in FIG. 1, in which a first pressing portion and a second pressing portion are pressed against a rear case of a mobile phone placed in a jig;

fig. 10 is a partial enlarged view of a portion of the tightness detecting apparatus shown in fig. 9.

Icon: 100-jig; 110-avoiding grooves; 111-a pressure relief hole; 200-laminating modules; 210-a first press plate; 211-a first press-fit portion; 2111-air holes; 2112-water holes; 212-a first sealed cavity; 220-a second press plate; 221-a second nip; 222-a second sealed cavity; 223-vent channel; 230-a first driver; 240-a second driver; 300-water dropping module; 310-spot water movement assembly; 311-a first moving part; 312-a second moving part; 313-a third moving part; 320—spot head; 330-a third driver; 400-sealing the detecting instrument; 500-an intermediate sealing ring; 600-gas seal ring; 700-water sealing ring; 800-a jig moving assembly; 810-a guide rail; 820-a fixed block; 830-fourth drive member; 900-mounting a platform; 1000-a mobile phone rear shell; 1100-mount.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 shows a tightness detecting device provided by an embodiment of the invention, which is used for detecting tightness of a back shell of a mobile phone, and includes a jig 100, a pressing module 200 and a tightness detecting instrument 400. The jig 100 is used for bearing a mobile phone rear shell 1000; the pressing module 200 can perform approaching movement and separating movement relative to the mobile phone rear shell 1000, an air hole 2111 is formed in one side, close to the mobile phone rear shell 1000, of the pressing module 200, when the pressing module 200 presses the mobile phone rear shell 1000, a first sealing cavity 212 can be formed between the pressing module 200 and the mobile phone rear shell 1000, the air hole 2111 is communicated with the first sealing cavity 212, and the pressing module 200 can enable the first sealing cavity 212 to be inflated through the air hole 2111; the seal detecting apparatus 400 is used to detect the magnitude of the air pressure of the first seal chamber 212.

When the air tightness detection needs to be performed on the mobile phone rear shell 1000, a detection worker firstly manually places the mobile phone rear shell 1000 on the jig 100, and then the pressing module 200 moves close to the mobile phone rear shell 1000, so that the pressing module 200 and the mobile phone rear shell 1000 are pressed tightly and a first sealing cavity 212 is formed between the pressing module 200 and the mobile phone rear shell 1000. The air hole 2111 is used for inflating the first seal cavity 212, after the inflation is completed and the air hole is kept for a certain period of time, the seal detection instrument 400 starts to detect the air pressure in the first seal cavity 212 at a preset time point and compares the air pressure with a standard value, if the air tightness of the mobile phone rear shell 1000 is poor, the air pressure in the first seal cavity 212 can be greatly fluctuated, and as the first seal cavity 212 is between the pressing module 200 and the mobile phone rear shell 1000, a detector can rapidly judge whether the air tightness of the mobile phone rear shell 1000 is good or bad through the air pressure change condition in the first seal cavity 212, and the detection speed is high and the accuracy is high.

The following specifically describes the structure of the tightness detection apparatus. Referring to fig. 2-10, fig. 2 shows a partial exploded view of the leak detection apparatus shown in fig. 1; FIG. 3 is a schematic diagram showing the connection of the bonding module 200 of the tightness detection device shown in FIG. 1 with a tightness detection instrument 400; fig. 4 shows a first schematic view of the first press-fit portion 211 of the tightness detection device shown in fig. 1; fig. 5 shows a second schematic view of the first nip 211 of the tightness detection device shown in fig. 1; fig. 6 shows a schematic view of a second nip 221 of the tightness detection device shown in fig. 1; fig. 7 is a first schematic view illustrating the first press-fit portion 211 and the second press-fit portion 221 of the tightness detection device shown in fig. 1 when the mobile phone rear case 1000 placed in the jig 100 is pressed together; fig. 8 is a plan view illustrating the first press-fit portion 211 and the second press-fit portion 221 of the tightness detecting apparatus shown in fig. 1 when press-fitting the rear case 1000 of the mobile phone placed in the jig 100; fig. 9 is a cross-sectional view showing the first press-fit portion 211 and the second press-fit portion 221 of the tightness detecting apparatus shown in fig. 1 press-fit the rear case 1000 of the mobile phone placed in the jig 100; fig. 10 shows a partial enlarged view at a of the tightness detection device shown in fig. 9.

Referring to fig. 1-3, in conjunction with fig. 4, fig. 5, fig. 9, and fig. 10, the tightness detection apparatus according to an embodiment of the present invention further includes a mounting base 1100, and the pressing module 200 includes a first pressing plate 210, a first driving member 230, and a first slider. The first pressing plate 210 is slidably connected to the mounting base 1100, the first pressing plate 210 can perform a close movement and a far movement relative to the mobile phone rear case 1000, and a first pressing portion 211 is disposed on a side of the first pressing plate 210 close to the mobile phone rear case 1000; when the first pressing plate 210 moves close to the mobile phone rear shell 1000, the first pressing portion 211 can extend into a shell groove of the mobile phone rear shell 1000 and press the mobile phone rear shell 1000, a first sealing cavity 212 is formed between the first pressing portion 211 and the mobile phone rear shell 1000, and the air holes 2111 are formed in the first pressing portion 211. The output end of the first driving member 230 is connected with a first slider, one side of the first slider is slidably connected with the mounting seat 1100, the other side of the first slider is fixedly connected with the first pressing plate 210, and the first driving member 230 can drive the first slider to move close to and away from the mobile phone rear housing 1000.

1-3, and referring to FIGS. 6-10, the pressing module 200 of the tightness detecting apparatus according to an embodiment of the present invention further includes a second pressing plate 220, a second driving member 240, and a second slider, where the second pressing plate 220 is slidably connected to the mounting base 1100, and a second pressing portion 221 is disposed on a side of the second pressing plate 220 close to the mobile phone rear case 1000; when the second pressing plate 220 moves close to the mobile phone rear case 1000, the second pressing portion 221 can abut against and press the first pressing portion 211, and a second sealing cavity 222 is formed between the second pressing portion 211 and the first pressing portion 211, and the air hole 2111 is communicated with the second sealing cavity 222. The output end of the second driving member 240 is connected to a second slider, one side of the second slider is slidably connected to the mounting seat 1100, and the other side of the second slider is fixedly connected to the second pressing plate 220, and the second driving member 240 can drive the second pressing portion 221 to move close to and away from the first pressing portion 211.

In another embodiment, the second pressure plate 220 is slidably coupled to the first pressure plate 210.

Referring to fig. 9, a second pressure plate 220 of a tightness detecting apparatus according to an embodiment of the present invention includes a ventilation channel 223, one end of the ventilation channel 223 is communicated with a second sealing cavity 222, an air hole 2111 is communicated with the ventilation channel 223, a first sealing cavity 212 is communicated with the second sealing cavity 222, and air in the second sealing cavity 222 can enter the first sealing cavity 212 through the air hole 2111.

Referring to fig. 2 and 9, the jig 100 for the tightness detection device according to an embodiment of the present invention is further provided with an avoidance groove 110, where the avoidance groove 110 is recessed along a side away from the mobile phone rear case 1000, and when the mobile phone rear case 1000 performs the tightness detection, the protruding portion of the mobile phone rear case 1000 can extend into the avoidance groove 110, so that the protruding portion of the mobile phone rear case 1000 is not easy to deform and damage in the tightness detection process. The avoidance groove 110 is internally provided with a pressure relief hole 111, and the first seal cavity 212 is communicated with the pressure relief hole 111, so that gas in the first seal cavity 212 can flow out along the pressure relief hole 111. Meanwhile, the second sealing cavity 222 is communicated with the first sealing cavity 212, so that the gas in the second sealing cavity 222 can also flow out through the pressure release hole 111.

Referring to fig. 1 and 2, and referring to fig. 4 and 5, a first pressing portion 211 of a tightness detecting device according to an embodiment of the present invention is further provided with a water dispensing hole 2112, and the tightness detecting device further includes a water dispensing module 300; the water dispensing module 300 can fill the water dispensing hole 2112, and the ventilation channel 223 communicates with the water dispensing hole 2112. The water-filling operation is the operation of filling water into the water-filling holes 2112.

Referring to fig. 7 to 10, the tightness detection device according to an embodiment of the present invention further includes an intermediate sealing ring 500 and an air sealing ring 600. One side of the middle sealing ring 500 is connected with one side of the first pressing part 211 far away from the mobile phone rear shell 1000 in a sealing way; the first pressing portion 211 presses the second pressing portion 221, and the other side of the intermediate seal ring 500 can be sealed and pressed on the side of the second pressing portion 221, which is close to the first pressing portion 211. One side of the air sealing ring 600 is connected with one side of the first pressing part 211 close to the mobile phone rear shell 1000 in a sealing way; the first pressing portion 211 presses the mobile phone rear case 1000, and the other side of the airtight ring 600 can be sealed and pressed on the mobile phone rear case 1000.

Specifically, since one side of the middle seal ring 500 is hermetically connected to one side of the first pressing portion 211 away from the rear case 1000 of the mobile phone; the first pressing portion 211 presses the second pressing portion 221, and the other side of the intermediate seal ring 500 can be sealed and pressed on the side of the second pressing portion 221, which is close to the first pressing portion 211. The sealing performance of the second sealing cavity 222 formed between the first pressing portion 211 and the second pressing portion 221 is better, and when the sealing detection instrument 400 detects the air pressure in the second sealing cavity 222, the detection effect is accurate.

Specifically, since one side of the air sealing ring 600 is hermetically connected to one side of the first pressing portion 211 near the rear case 1000 of the mobile phone; the first pressing portion 211 presses the mobile phone rear case 1000, and the other side of the airtight ring 600 can be sealed and pressed on the mobile phone rear case 1000. The tightness between the airtight detection part of the mobile phone rear shell 1000 and the first pressing part 211 is better, so that the situation that the airtight measurement result error is larger due to air leakage at the contact part of the mobile phone rear shell 1000 and the first pressing part 211 is effectively avoided, and the measurement result is more accurate.

With continued reference to fig. 9 and fig. 10, the tightness detecting apparatus according to an embodiment of the present invention further includes a water sealing ring 700, where one side of the water sealing ring 700 is connected with one end of the water dispensing hole 2112 near the rear housing 1000 of the mobile phone in a sealing manner; the first pressing portion 211 presses the rear case 1000 of the mobile phone, and the other side of the water sealing ring 700 can be sealed and pressed on the rear case 1000 of the mobile phone.

Specifically, one side of the water seal ring 700 is in sealing connection with the spot water hole 2112, and the other side of the water seal ring 700 can be pressed against the mobile phone rear housing 1000, when water is injected into the spot water hole 2112, water in the spot water hole 2112 falls to a structure of the mobile phone rear housing 1000 corresponding to the spot water hole 2112, and water can be prevented from flowing into the outside of the structure of the mobile phone rear housing 1000 corresponding to the spot water hole 2112, so that the water tightness checking result is more accurate.

Referring to fig. 2, a water dispensing module 300 of a tightness detection device according to an embodiment of the present invention includes a water dispensing moving assembly 310, a water dispensing head 320 and a third driving member 330; the power output end of the third driving member 330 is connected to the spot water moving assembly 310 for moving the spot water head 320 to above the spot water hole 2112.

Specifically, the spot water moving assembly 310 includes a first moving member 311, a second moving member 312, and a third moving member 313. The first moving component 311 can drive the spot head 320 to move along the xx' direction shown in fig. 1; the second moving component 312 can drive the spot head 320 to move along the yy' direction as shown in fig. 1; the third moving member 313 can drive the spot head 320 to move in the zz' direction as shown in fig. 1. When the water tightness of the mobile phone rear shell 1000 is detected, the spot water head 320 moves more conveniently and rapidly, and the detection speed is higher.

Referring to fig. 1 and 2, the tightness detecting apparatus according to an embodiment of the present invention further includes a jig moving assembly 800, where the jig moving assembly 800 includes a guide rail 810, a fixing block 820, and a fourth driving member 830. The fixed block 820 is slidably connected to the guide rail 810, the fixed block 820 is connected to a power output end of the fourth driving member 830, the fourth driving member 830 can drive the fixed block 820 to move along the first direction, the jig 100 is mounted on the fixed block 820, and the jig 100 can move synchronously with the fixed block 820. The first direction is shown as xx' direction in fig. 1.

Referring to fig. 1 and 2, the tightness detecting apparatus provided in an embodiment of the present invention further includes a mounting platform 900, the mounting seat 1100 is fixedly connected to the mounting platform 900, one side of the jig moving assembly 800 away from the jig 100 is fixedly connected to the mounting platform 900, and one side of the water dispensing module 300 away from the water dispensing head 320 is fixedly connected to the mounting platform 900. The mounting platform 900 is used for carrying the jig 100, the jig moving assembly 800, the pressing module 200, the water dispensing module 300, the seal detecting instrument 400 and the mounting seat 1100.

According to the tightness detection device provided by the embodiment of the invention, the detection area of the mobile phone rear shell 1000 is communicated with the first press-fit part 211 and forms the first sealing cavity 212, the second sealing cavity 222 can be formed between the second press-fit part 221 and the first press-fit part 211, the second sealing cavity 222 is communicated with the first sealing cavity 212 through the air hole 2111, air can enter the first sealing cavity 212 through the air channel 223 and the air hole 2111, and water can be injected into the point water hole 2112 through the point water module 300, so that water in the point water hole 2112 falls on a position of the mobile phone rear shell 1000 corresponding to the point water hole 212. Since the second seal chamber 222 is communicated with the first seal chamber 212, the air pressure in the first seal chamber 212 formed between the handset back casing 1000 and the first press portion 211 can be obtained by detecting the air pressure in the second seal chamber 222 by the seal detecting instrument 400.

The tightness detection device provided by the embodiment of the invention can detect the tightness and the water tightness of the detection area of the mobile phone rear shell 1000 at the same time, and has high detection speed. And be provided with middle sealing washer 500, airtight circle 600 and water seal circle 700 for the gas in first sealed chamber 212 and the second sealed chamber 222 is difficult for revealing, and the water in the some water holes 2112 is difficult for revealing outside the cell-phone backshell 1000 corresponds with some water holes 212, and the testing result degree of accuracy is high.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A tightness detection apparatus, characterized in that the tightness detection apparatus comprises:

the jig (100), the said jig (100) is used for bearing and detecting the supplies;

a mounting base (1000);

-a lamination module (200), the lamination module (200) comprising a first lamination plate (210) and a second lamination plate (220); the first pressing plate (210) is slidably connected to the mounting seat (1100), the first pressing plate (210) can move close to and away from the detection material, a first pressing part (211) is arranged on one side, close to the detection material, of the first pressing plate (210), and an air hole (2111) is formed in the first pressing part (211); when the first pressing plate (210) moves close to the detection material, the first pressing part (211) can extend into a shell groove of the detection material and is pressed against the detection material, a first sealing cavity (212) can be formed between the first pressing part (211) and the detection material, and the air hole (2111) is communicated with the first sealing cavity (212); the second pressing plate (220) is slidably connected to the mounting seat (1100) or the first pressing plate (210), and a second pressing part (221) is arranged on one side, close to the detection material, of the second pressing plate (220); when the second pressing plate (220) moves close to the detection material, the second pressing part (221) can be abutted against and pressed against the first pressing part (211) and form a second sealing cavity (222) with the first pressing part (211), and the air hole (2111) is communicated with the second sealing cavity (222);

a seal detection instrument (400), the seal detection instrument (400) being configured to detect a magnitude of air pressure of the first sealed cavity (212).

2. The tightness detection device according to claim 1, wherein the pressing module (200) further comprises a first driving member (230) and a first slider, an output end of the first driving member (230) is connected with the first slider, one side of the first slider is slidably connected with the mounting seat (1100), the other side of the first slider is fixedly connected with the first pressing plate (210), and the first driving member (230) can drive the first slider to move close to and away from the detection material.

3. The tightness detection apparatus according to claim 1, wherein the second pressing plate (220) includes a ventilation passage (223), one end of the ventilation passage (223) communicates with the second seal chamber (222), the ventilation passage (223) communicates with the air hole (2111), the first seal chamber (212) communicates with the second seal chamber (222), and gas in the second seal chamber (222) can enter the first seal chamber (212) through the air hole (2111).

4. The tightness detection device according to claim 3, wherein the jig (100) is further provided with an avoidance groove (110), the avoidance groove (110) is recessed along one side far away from the detection material, a pressure release hole (111) is formed in the avoidance groove (110), and the first sealing cavity (212) is communicated with the pressure release hole (111).

5. A tightness detection device according to claim 3, wherein the first press-fit is further provided with a spot water hole (2112), the tightness detection device further comprising a spot water module (300);

the water-injecting module (300) can inject water into the water-injecting hole (2112), water in the water-injecting hole (2112) can fall onto the position of the detection material corresponding to the water-injecting hole (2112), and the ventilation channel (223) is communicated with the water-injecting hole (2112).

6. The tightness detection device according to claim 5, wherein the pressing module (200) further comprises a second driving member (240) and a second slider, an output end of the second driving member (240) is connected with the second slider, one side of the second slider is slidably connected with the mounting seat (1100), the other side of the second slider is fixedly connected with the second pressing plate (220), and the second driving member (240) can drive the second pressing portion (221) to perform a approaching motion and a separating motion relative to the first pressing portion (211).

7. The tightness detection device according to claim 5, further comprising an intermediate sealing ring (500), wherein one side of the intermediate sealing ring (500) is sealingly connected to a side of the first press-fit portion (211) remote from the detection material; the first pressing part (211) presses the second pressing part (221), and the other side of the middle sealing ring (500) can be pressed on one side, close to the first pressing part (211), of the second pressing part (221) in a sealing mode.

8. The tightness detection device according to claim 5, further comprising an air sealing ring (600), wherein one side of the air sealing ring (600) is sealingly connected to one side of the first press-fit portion (211) close to the detection material; the first pressing part (211) presses the detection material, and the other side of the air sealing ring (600) can be pressed on the detection material in a sealing mode.

9. The tightness detection device according to claim 5, further comprising a water seal ring (700), wherein one side of the water seal ring (700) is in sealing connection with one end of the spot water hole (2112) close to the detection material; the first pressing part (211) presses the detection material, and the other side of the water sealing ring (700) can be tightly pressed on the detection material.

10. The tightness detection apparatus according to claim 5, wherein the spot water module (300) comprises a spot water moving assembly (310) and a spot water head (320);

the spot water movement assembly (310) is configured to move the spot water head (320) over the spot water hole (2112).

11. The tightness detection apparatus according to any of claims 1-10, further comprising a jig moving assembly (800), the jig moving assembly (800) comprising a guide rail (810), a fixed block (820) and a fourth drive (830);

the fixed block (820) is slidably connected to the guide rail (810), the fixed block (820) is connected with a power output end of the fourth driving piece (830), the jig (100) is installed on the fixed block (820), the fourth driving piece (830) can drive the fixed block (820) to move along a first direction, and the jig (100) can move synchronously with the fixed block (820).