A watertightness testing system

Abstract

The present application discloses a watertightness test system, characterized in that it comprises a lower table, an upper table arranged parallel to the lower table, a plurality of test mechanisms arranged on the lower table, and a plurality of drying mechanisms arranged on the upper table; wherein the test mechanism comprises a lower tool assembly slidably arranged on the lower table, and an upper carrier assembly arranged above the lower tool assembly and sealably connected to the lower tool assembly, the product to be tested is placed between the upper carrier assembly and the lower tool assembly, the lower tool assembly inputs test water vapor on one side of the product to be tested, and the upper carrier assembly draws negative pressure on the other side of the product to be tested; the drying mechanism comprises a plurality of drying boxes installed on the upper table, the drying box comprises a box body with a cavity, a cover body hinged to the box body, and an exhaust interface connected to the cavity for connecting to an exhaust vacuum pump. The watertightness test system of the present application first performs a watertightness test on the product, and then integrates the drying, which does not affect each other and saves test time.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a watertightness testing system. Background Art

[0002] With the development of society, the gradual increase of labor costs, the rise of the automation industry, and the widespread use of automation equipment, it is irreplaceable. The vigorous promotion of automation equipment, an important tool, can save a lot of manpower, material and financial resources for various industries, improve product quality, and increase the output value of enterprises.

[0003] At the same time, with the rapid development of electronic products, the market has put forward higher requirements on the quality of electronic products, especially the waterproof performance of electronic products. Therefore, when electronic products leave the factory, manufacturers usually conduct watertightness tests on them. At present, watertightness tests are mainly completed through airtightness tests or watertightness tests. Among them, airtightness tests simulate the environment of water testing and conduct cavity-type or direct airtightness tests without drying. However, airtightness tests cannot completely simulate the complex environment in water, and there are certain misjudgments. Products that pass the airtightness test cannot achieve 100% product waterproofness; and watertightness tests are to test and dry each product in turn, which takes a lot of time and is not conducive to large-scale production in factories. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned technologies, the present application provides a water-tightness testing system, which first performs a water-tightness test on the product and then conducts integrated drying without affecting each other, thus saving testing time.

[0005] In order to solve the above technical problems, the technical solution adopted in this application is:

[0006] A watertightness testing system comprises a lower table, an upper table arranged parallel to and above the lower table, a plurality of testing mechanisms arranged on the lower table, and a plurality of drying mechanisms arranged on the upper table;

[0007] The testing mechanism comprises a lower tool assembly slidably disposed on the lower table and an upper carrier assembly disposed above the lower tool assembly and sealably connected to the lower tool assembly, wherein the lower tool assembly is used to input test water vapor on one side of the product to be tested, and the upper carrier assembly is used to draw negative pressure on the other side of the product to be tested;

[0008] The drying mechanism comprises a plurality of drying boxes installed on the upper table, wherein the drying box comprises a box body with a cavity, a cover body hinged to the box body, and an exhaust interface connected to the cavity and used for connecting to an exhaust vacuum pump.

[0009] In one embodiment of the present application, the lower jig assembly includes a base slidably disposed on the lower table surface and a lower bearing jig sealed and connected to the base to form a receiving cavity.

[0010] In one embodiment of the present application, the base includes a connecting plate slidably arranged on the lower table surface and a boss arranged on the connecting plate.

[0011] In one embodiment of the present application, a first groove is formed on the boss, and an inlet through hole for inputting test water vapor and an outlet through hole for outputting test water vapor are formed in the first groove.

[0012] In one embodiment of the present application, a second groove for accommodating the boss is formed at the bottom of the lower supporting fixture, a first through hole matching the first groove is formed in the second groove, and the first groove and the inner side wall of the first through hole form the accommodating cavity.

[0013] In one embodiment of the present application, the upper carrier assembly includes a sealing block, a third groove is provided at the bottom of the sealing block, an exhaust hole for connecting to a vacuum pump is provided in the third groove, a second sealing ring is provided on the bottom end face of the sealing block, and the second sealing ring is arranged around the outside of the third groove.

[0014] In an embodiment of the present application, abutment platforms for abutting against edges of the product to be tested are provided on both sides of the third groove.

[0015] In one embodiment of the present application, a carrier for suspending multiple products is disposed in the cavity, and the carrier includes a main body, on which a plurality of fourth grooves are opened in parallel so that the remaining raised portions of the main body form a plurality of parallelly arranged carrier strips.

[0016] In one embodiment of the present application, a plurality of half-slots are provided on the edge of the carrier bar, and the half-slots provided at corresponding positions on two adjacent carrier bars cooperate to form a slot for placing products.

[0017] In one embodiment of the present application, the carrier bar is further provided with a plurality of bumps protruding upward for easy grasping.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The watertightness test system of the present application is provided with a test mechanism on the lower table and a drying mechanism on the upper table, which reasonably combines the watertightness test function and the drying function into one, first performs a watertightness test on the product, and then integrates the drying, which does not affect each other, greatly saves the test time, and is conducive to large-scale production in the factory. Among them, the test mechanism adopts a watertightness test mechanism composed of a lower carrier assembly that inputs test water vapor on one side of the product to be tested and an upper carrier assembly that draws negative pressure on the other side of the product to be tested, which replaces most of the devices that pass the airtightness test on the market, and the test effect is more accurate; the drying box of the drying mechanism adopts vacuum drying technology, and performs vacuum drying operations on multiple products at the same time, which greatly improves the drying efficiency and ensures product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 It is a structural schematic diagram of the watertightness test system proposed in this application;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the test organization;

[0023] Figure 3 yes Figure 2 A schematic diagram of the structure of the mid- and low-speed vehicle assembly;

[0024] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle base;

[0025] Figure 5 yes Figure 3 Structural schematic diagram of the middle and lower bearing fixture;

[0026] Figure 6 yes Figure 2 A schematic diagram of the structure of the middle and upper carrier assembly and the lifting assembly;

[0027] Figure 7 yes Figure 6 A schematic diagram of the structure of the middle and upper carrier assembly;

[0028] Figure 8 yes Figure 1 Structural diagram of the middle drying mechanism;

[0029] Fig. 9 yes Figure 8 A schematic diagram of the structure of the middle box;

[0030] Fig.10 yes Fig. 9 Schematic diagram of the structure of the medium vehicle.

[0031] In the figure, 1, lower table; 2, upper table; 3, testing mechanism; 31, moving assembly; 311, first linear guide rail; 312, cylinder; 32, lower tool assembly; 321, first connecting block; 322, base; 3221, connecting plate; 3222, boss; 3223, first groove; 3224, inlet through hole; 3225, outlet through hole; 3226, first sealing ring; 323, lower bearing fixture; 3231, second groove; 3232, first through hole; 3233, accommodating chamber; 33, upper carrier assembly; 331, second connecting block; 332, sealing block; 3321, third groove; 3322, abutment table ; 3323, second sealing ring; 3324, exhaust hole; 34, lifting assembly; 341, servo motor; 342, screw rod; 343, fixed platform; 344, support rod; 4, drying mechanism; 41, drying box; 411, box body; 4111, third sealing ring; 412, cover body; 4121, convex piece; 413, exhaust interface; 414, cavity; 42, carrier; 421, main body; 4211, fourth groove; 4212, carrier bar; 4213, half slot; 4214, slot; 4215, protrusion; 4216, first carrier bar; 4217, second carrier bar; 4218, third carrier bar. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] like Figure 1 As shown, a water tightness testing system corresponding to a preferred embodiment of the present application includes a lower table 1, an upper table arranged parallel to the lower table 1, a plurality of testing mechanisms 3 arranged on the lower table 1, and a plurality of drying mechanisms 4 arranged on the upper table 2.

[0036] like Figure 2 As shown, the testing mechanism 3 includes a moving component 31, a lower tool component 32 slidably disposed on the moving component 31, an upper carrier component 33 disposed above the lower tool component 32 and sealably connected to the lower tool component 32, and a lifting component 34 for driving the upper carrier component 33 to move up and down.

[0037] The moving assembly 31 includes a pair of first linear guide rails 311 fastened to the lower table 1 and a cylinder 312 driving the lower tool assembly 32 to move on the first linear guide rails 311. When in use, the cylinder 312 drives the lower tool assembly 32 to move to the loading position to place the product, and then the cylinder 312 drives the lower tool assembly 32 loaded with the product to move to the bottom of the upper carrier assembly 33 to perform the next operation.

[0038] like Figures 3 to 5As shown, the lower tool assembly 32 includes a first connection block 321 connected to the cylinder 312, a base 322 fixedly mounted on the first connection block 321, and a lower bearing fixture 323 sealedly connected to the base 322 to form a receiving chamber 3233. The base 322 includes a connecting plate 3221 fixedly connected to the first connection block 321 and slidably connected to the first linear guide rail 311, and a boss 3222 arranged on the connecting plate 3221. The boss 3222 is provided with a first groove 3223, and the first groove 3223 is provided with an inlet through hole 3224 for inputting test water and an outlet through hole 3225 for outputting test water. The test water is understood to be respectively filled with water and gas through the inlet through hole 3224, so that the water in the receiving chamber 3233 reaches a certain pressure. Preferably, the gas filling test can be performed first, and then the water filling test. The gas filling test can also detect the product with a large leak in advance and protect the product. A first sealing ring 3226 is provided on the end surface of the boss 3222, and the first sealing ring 3226 is arranged around the outside of the first groove 3223. A second groove 3231 for accommodating the boss 3222 is provided at the bottom of the lower supporting fixture 323, and a first through hole 3232 matching the first groove 3223 is also provided in the lower supporting fixture 323, and the first through hole 3232 is located in the second groove 3231. The first sealing ring 3226 of the boss 3222 is sealedly connected to the upper wall of the second groove 3231, so that the first groove 3223 and the inner side wall of the first through hole 3232 form a receiving chamber 3233, and the receiving chamber 3233 is used to accommodate water and gas input from the inlet through hole 3224 during testing.

[0039] like Figure 6 and Figure 7 As shown, the upper carrier assembly 33 includes a second connection block 331 connected to the lifting assembly 34 and a sealing block 332 sealed to the second connection block 331. A third groove 3321 is provided at the bottom of the sealing block 332. Preferably, abutment platforms 3322 are provided on both sides of the third groove 3321, so that when the upper carrier assembly 33 is sealed to the lower carrier assembly 32, the abutment platforms 3322 can abut against the edge of the product to fix the product, thereby preventing the product from being displaced by the impact of the test water vapor in the accommodating cavity 3233, causing test errors, and forming a sealed space between the product and the accommodating cavity 323. A second sealing ring 3323 is provided on the bottom end surface of the sealing block 332, and the second sealing ring 3323 is arranged around the outside of the third groove 3321, so that the sealing block 332 can be sealed to the lower bearing fixture 323 to form a sealed cavity. The third groove 3321 is provided with an exhaust hole 3324 for connecting to a vacuum pump. The exhaust hole 3324 is also connected to an instrument for collecting gas. The amount of gas collected by the instrument is used to determine whether the tested product is qualified.

[0040] The lifting assembly 34 includes a servo motor 341 and a screw rod 342 connected to the servo motor 341, and the screw rod 342 is connected to the second connecting block 331 to drive the upper carrier assembly 33 to rise and fall. The servo motor 341 is fixed to a fixed platform 343 through a bracket, and the fixed platform 343 is arranged between the lower table 1 and the upper table 2, and is fixed to the lower table 1 through a plurality of support rods 344.

[0041] like Figure 8 and Fig. 9 As shown, the drying mechanism 4 includes a plurality of drying boxes 41 installed on the upper table 2. The drying box 41 includes a box body 411 with a cavity 414, a cover body 412 hinged to the box body 411, and an exhaust port 413 connected to the cavity 414 and used to be connected to an exhaust vacuum pump. The cover body 412 can seal the cavity 414. Preferably, a third sealing ring 4111 can be provided on the end face of the box body 411. The third sealing ring 4111 is arranged around the outside of the cavity 414. When the cover body 412 is closed, the third sealing ring 4111 can seal the cavity 414. Furthermore, a convex piece 4121 exposed to the box body 411 can be provided at the edge of the cover body 412 to facilitate the opening and closing of the cover body 412. After the cavity 414 is sealed, the exhaust vacuum pump is connected to the exhaust port 413 to evacuate the air in the cavity 414 to dry the product placed in the cavity 414.

[0042] like Fig.10As shown, a carrier 42 for placing multiple products in the air is provided in the cavity 414. The carrier 42 includes a body 421, and a plurality of fourth grooves 4211 are provided in parallel on the body 421 so that the remaining protruding parts of the body 421 form a plurality of parallel carrier strips 4212, and a plurality of half-slots 4213 are provided on the edge of the carrier strips 4212. The half-slots 4213 provided at corresponding positions on two adjacent carrier strips 4212 cooperate to form a slot 4214 for placing products. The slots 4214 are evenly provided on the body 421, and the spacing between adjacent slots 4214 is preferably set such that when products are placed in adjacent slots 4214, the adjacent products will not touch each other, and there is a gap between the two. Further, when the product is embedded in the slot 4214, the product is suspended in the air at the fourth groove 4211, so that the vacuum drying of the product can be more thorough. A plurality of upwardly protruding bumps 4215 are also provided on the carrier bar 4212 , and the bumps 4215 facilitate the removal of the main body 421 from the cavity 414 . In this embodiment, two fourth grooves 4211 are preferably provided, and the carrier bar 4212 includes a first carrier bar 4216, a second carrier bar 4217, and a third carrier bar 4218 arranged between the first carrier bar 4216 and the second carrier bar 4217, wherein the multiple half-slots 4213 on the first carrier bar 4216 and the second carrier bar 4217 are all provided on the edge of one side adjacent to the third carrier bar 4218, and the multiple half-slots 4213 on the third carrier bar 4218 are provided on the edges of both sides thereof, the half-slots 4213 of the first carrier bar 4216 cooperate with the half-slots 4213 on one side of the third carrier bar 4218 to form a row of slots 4214 for placing products, and the half-slots 4213 of the second carrier bar 4217 cooperate with the half-slots 4213 on the other side of the third carrier bar 4218 to form another row of slots 4214 for placing products, which are used to clamp multiple products for simultaneous drying operations. Further, the protrusion 4215 is installed on the third carrier bar 4218 to facilitate the removal of the entire body. In order to facilitate the placement of the product and the operation of the staff, a mark such as an arrow that can clearly indicate the installation direction can be engraved on the third carrier bar 4218.

[0043] When the watertightness test system of the present application is used, the product to be tested is placed on the first through hole 3232 of the lower bearing fixture 323, and the sealing block 332 is driven downward by the servo motor 341 to make the abutment platform 3322 in the sealing block 332 abut against the edge of the product to fix the product, and the product and the accommodating chamber 323 form a sealed space, and the sealing block 332 is sealed and connected with the lower bearing fixture 323 to form a sealed chamber. Close the outlet through hole 3225, input the test water vapor from the inlet through hole 3224 until the accommodating chamber 3233 is filled, turn on the vacuum pump, and draw negative pressure to the sealed chamber. If the instrument for collecting gas connected to the exhaust through hole 3324 collects gas, it means that the product is an unqualified product. If the instrument does not collect gas, it means that the product is a qualified product. The products after the test are placed in the card slot 4214 in sequence. When the box is full of products to be dried, close the cover 412, start the vacuum pump, and vacuum dry the products in the box. After drying is completed, the cover 412 is opened and the product can be taken out directly, or the carrier 42 can be taken out from the cavity 414 first, and then the product can be taken out.

[0044] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A watertightness testing system, characterized in that: It comprises a lower table (1), an upper table (2) arranged parallel to and above the lower table (1), a plurality of testing mechanisms (3) arranged on the lower table (1), and a plurality of drying mechanisms (4) arranged on the upper table (2); The testing mechanism (3) comprises a lower tool assembly (32) slidably disposed on the lower table (1) and an upper carrier assembly (33) disposed above the lower tool assembly (32) and capable of being sealed and connected to the lower tool assembly (32); the product to be tested is placed between the upper carrier assembly (33) and the lower tool assembly (32); the lower tool assembly (32) inputs test water vapor on one side of the product to be tested, and the upper carrier assembly (33) draws negative pressure on the other side of the product to be tested; The jig assembly (32) comprises a base (322) slidably disposed on the lower table (1) and a lower bearing jig (323) sealedly connected to the base (322) to form a receiving cavity (3233), the base (322) comprising a connecting plate (3221) slidably disposed on the lower table (1) and a boss (3222) disposed on the connecting plate (3221), the boss (3222) being provided with a first groove (3223), the first groove (3223) being provided with a groove for inputting The inlet through hole (3224) for testing water vapor and the outlet through hole (3225) for outputting the testing water vapor, the bottom of the lower supporting fixture (323) is provided with a second groove (3231) for accommodating the boss (3222), the second groove (3231) is provided with a first through hole (3232) matching with the first groove (3223), the first groove (3223) and the inner side wall of the first through hole (3232) form the accommodating cavity (3233), the upper carrier assembly (33 ) comprises a sealing block (332), a third groove (3321) is provided at the bottom of the sealing block (332), a suction hole (3324) for connecting to a vacuum pump is provided in the third groove (3321), a second sealing ring (3323) is provided on the bottom end surface of the sealing block (332), the second sealing ring (3323) is arranged around the outside of the third groove (3321), and abutment platforms (3322) for abutting against the edge of the product to be tested are provided on both sides of the third groove (3321); The drying mechanism (4) comprises a plurality of drying boxes (41) mounted on the upper table (2), the drying boxes (41) comprising a box body (411) with a cavity (414), a cover body (412) hingedly connected to the box body (411), and an exhaust interface (413) in communication with the cavity (414) and used for connecting to an exhaust vacuum pump.

2. The watertightness testing system according to claim 1, characterized in that: A carrier (42) for suspending a plurality of products is arranged in the cavity (414), the carrier (42) comprising a body (421), a plurality of fourth grooves (4211) being arranged in parallel on the body (421) so that the remaining raised portions of the body (421) form a plurality of carrier strips (4212) arranged in parallel.

3. The watertightness testing system according to claim 2, characterized in that: A plurality of half-slots (4213) are provided on the edge of the carrier strip (4212), and the half-slots (4213) provided at corresponding positions on two adjacent carrier strips (4212) cooperate to form a slot (4214) for placing products.

4. The watertightness testing system according to claim 3, characterized in that: The carrier bar (4212) is also provided with a plurality of protrusions (4215) protruding upwards for easy grasping.

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