Device for detecting air tightness of sealed connector shell

Abstract

The utility model discloses an air tightness detection device for a sealed connector shell, and belongs to the field of air tightness detection. A sealed connector shell airtightness detection device comprises a workbench, and the workbench is provided with a first clamping plate and a second clamping plate which can slide synchronously and reversely. A first turntable is rotationally connected to the first clamping plate; a first sealing gasket is fixed on the end surface of the first turntable; a second turntable is rotationally connected to the second clamping plate and is coaxial with the first turntable, a second sealing gasket is fixed to the second turntable, an air pipe is fixed to the second turntable, and the air pipe penetrates through the second clamping plate, the second turntable and the second sealing gasket at the same time; the air pipe is connected with an air pump; the first clamping plate and the second clamping plate get close synchronously, so that the shell can be clamped, and the two ends of the shell can be blocked; soapy water is brushed on the surface of the shell; therefore, the air leakage position is judged according to the bubble position, and the air leakage position of the shell can be repaired conveniently in the later period.

Description

Technical Field

[0001] The utility model belongs to the field of airtightness detection, and particularly relates to an airtightness detection device for a sealed connector housing. Background Art

[0002] Before the sealed connector housing leaves the factory, it needs to be subjected to airtightness detection. In the prior art, the devices for airtightness detection of the sealed connector housing are diverse; among them, the utility model patent with the authorization announcement number CN219810584U discloses a detection device for a sealed connector housing. A group of elastic supports are connected to the bottom inside the water tank, a bearing plate is connected to the upper side of the group of elastic supports, a bracket is connected to the water tank, a driving member is connected to the bracket, and an inflation device is connected to the driving rod of the driving member; when detecting the airtightness of the housing, first, the outlet of the lower housing is inserted into the first insertion column, then the driving member is started to drive the inflation device to descend, so that the inflation nozzle is inserted into the inlet of the upper housing while pressing the housing into the water, and finally, air is inflated into the inlet through a gas cylinder, and it is checked whether there are bubbles emerging in the water tank, so as to detect whether the airtightness of the sealed connector housing is good, and it can realize batch detection of the sealed housing, with high detection efficiency;

[0003] However, although the above utility model can detect whether the airtightness of the connector housing is good, since the housing is completely immersed in the water in the tank, it is impossible to accurately identify and mark the specific air leakage position of the housing, which is not conducive to the later repair of the sealed connector housing; for this reason, a detection device for a sealed connector housing is proposed. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide an airtightness detection device for a sealed connector housing, which solves the problems in the prior art.

[0005] The purpose of the present utility model can be achieved by the following technical solutions:

[0006] An airtightness detection device for a sealed connector housing includes a workbench, on which a first clamping plate and a second clamping plate that can slide synchronously and in opposite directions are arranged; a first turntable is rotatably connected to the first clamping plate, and a first sealing gasket is fixed on the end face of the first turntable; a second turntable is rotatably connected to the second clamping plate, the second turntable is coaxial with the first turntable, a second sealing gasket is fixed on the second turntable, and an air pipe is fixed on the second turntable, and the air pipe penetrates through the second clamping plate, the second turntable and the second sealing gasket at the same time; the air pipe is connected to an air pump;

[0007] The first clamping plate and the second clamping plate approach synchronously, can clamp the housing and block both ends of the housing; and the surface of the housing is brushed with soapy water; thus, the air leakage position can be judged according to the position of the bubbles, which is convenient for later repair of the air leakage position of the housing.

[0008] Furthermore, the trachea includes an air nozzle which penetrates through the central position of the second turntable and is fixedly sealed thereto; a hose is connected to the air nozzle and passes through the second clamping plate and is connected to an air pump.

[0009] Furthermore, both the first clamping plate and the second clamping plate are slidably connected to the workbench, and the sliding direction is parallel to the axial direction of the housing; two first fixing plates are provided at the lower end of the workbench, and a lead screw is rotatably connected between the two first fixing plates. First external threads and second external threads with opposite helix directions and equal pitches are respectively provided at both ends of the lead screw. The first external thread and the second external thread respectively penetrate through the second clamping plate and the first clamping plate and are threadedly connected thereto.

[0010] Furthermore, the helix angles of the first external thread and the second external thread are both smaller than the equivalent friction angle.

[0011] Furthermore, a shielding plate is provided above the lead screw and can shield the upper part of the lead screw. A second fixing plate fixed to the workbench is provided on the shielding plate.

[0012] Furthermore, the shielding plate is in an inverted 'V' shape.

[0013] Furthermore, V-shaped grooves are formed on both the first clamping plate and the second clamping plate, and the shielding plate respectively penetrates through the V-shaped grooves on the first clamping plate and the second clamping plate.

[0014] Furthermore, at least two support components are provided at the upper end of the workbench. The support component includes a support seat fixed to the upper end of the workbench, and a roller is rotatably connected to each of the two sides of the upper end of the support seat. Both rollers are in rolling contact with the housing.

[0015] Furthermore, a storage groove is fixed to the lower end of the workbench to store the soapy water dripping from the housing.

[0016] Advantages of the utility model:

[0017] 1. By providing two first clamping plate assemblies and second clamping plate assemblies on the workbench that can slide synchronously and in opposite directions, and respectively rotatably connecting a first turntable and a second turntable, and respectively providing a first sealing gasket and a second sealing gasket on the first turntable and the second turntable to clamp the housing and seal both ends thereof; by providing a trachea on the first turntable, under the action of an air pump, the inside of the housing is inflated, and then soapy water is brushed on the surface of the housing to determine the air leakage position according to the position of the bubbles, which is convenient for later repair of the air leakage position of the housing.

[0018] 2. By providing an inverted 'V'-shaped shielding plate above the lead screw to prevent soapy water from dripping on the lead screw, causing the lead screw to rust and thus affecting the normal transmission of the lead screw. Description of the drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic diagram of the overall structure of the detection device of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of the workbench of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of the first clamping plate assembly of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the second clamping plate assembly of the present invention;

[0024] Figure 5 is a schematic diagram of the structure of the air pipe of the present invention;

[0025] Figure 6 is a schematic diagram of the structure under the workbench of the present invention;

[0026] Figure 7 is a schematic diagram of the structure of the lead screw of the present invention;

[0027] Figure 8 is a schematic diagram of the structure of the support assembly of the present invention. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Such as Figure 1As shown in the figure, an airtightness detection device for a sealed connector housing includes a workbench 2. At the upper end of the workbench 2, there are two first clamping plate assemblies 3 and a second clamping plate assembly 4 that can slide in opposite directions. The first clamping plate assembly 3 and the second clamping plate assembly 4 can be close to each other to clamp the housing and simultaneously seal both ends of the housing. By inflating the housing to apply a certain air pressure, and then applying soapy water on the surface of the housing, obvious bubbles will be generated at the positions where the housing leaks air. At this time, mark the positions where the bubbles are generated with a marker pen to facilitate subsequent repair of the housing. In some embodiments, the leak can be repaired by filling the leak position with welding wire and then grinding and polishing.

[0030] As Figure 3 shown, the first clamping plate assembly 3 includes a first clamping plate 31 that can slide on the upper end of the workbench 2. A first turntable 32 is rotatably connected to the first clamping plate 31, and a first sealing pad 33 is fixed on the end face of the first turntable 32.

[0031] As Figure 4 shown, the second clamping plate assembly 4 includes a second clamping plate 41 that can slide on the workbench 2, and the first clamping plate 31 and the second clamping plate 41 can slide synchronously in opposite directions. A second turntable 42 is rotatably connected to the second clamping plate 41. The second turntable 42 is coaxial with the first turntable 32. A second sealing pad 43 is fixed on the second turntable 42, and an air pipe 44 is fixed on the second turntable 42. The air pipe 44 penetrates through the second clamping plate 41, the second turntable 42, and the second sealing pad 43 at the same time; the air pipe 44 is connected to an air pump.

[0032] By controlling the first clamping plate 31 and the second clamping plate 41 to approach synchronously, the housing can be clamped, and the first turntable 32 and the second turntable 42 can respectively seal both ends of the housing. And due to the setting of the first sealing pad 33 and the second sealing pad 43, the sealing performance of both ends of the housing can be ensured; then, under the action of the air pump, the housing is inflated; then an operator brushes soapy water on the surface of the housing and rotates the housing at the same time to ensure that the soapy water covers the entire surface of the housing; during this period, check whether there are bubbles on the surface of the housing and the positions of the bubbles, and make marks.

[0033] In this embodiment, as Figure 5 shown, the air pipe 44 includes a nozzle 441. The nozzle 441 penetrates through the center position of the turntable 42 and is fixedly sealed with it; a hose 442 is connected to the nozzle 441. The hose 442 passes through the second clamping plate 41 and is connected to the air pump; the setting of the hose 442 avoids the movement of the second clamping plate 41 and the rotation of the turntable 42 being restricted by the air pipe 44.

[0034] In this embodiment, both the first clamping plate 31 and the second clamping plate 41 are slidably connected to the workbench 2, and the sliding direction is parallel to the axial direction of the housing; as Figure 2 、 Figure 6 andFigure 7 As shown in the figure, two first fixing plates 21 are provided at the lower end of the workbench 2. A lead screw 5 is rotatably connected between the two first fixing plates 21. First external threads 51 and second external threads 52 with opposite helix directions and equal pitches are respectively provided at both ends of the lead screw 5. The first external thread 51 and the second external thread 52 respectively penetrate through the second clamping plate 41 and the first clamping plate 31 and are threadedly connected thereto. By rotating the lead screw 5, the synchronous reverse sliding of the first clamping plate 31 and the second clamping plate 41 can be realized to complete the sealing of both ends of the housing and the clamping and fixing of the housing.

[0035] Moreover, in order to ensure the stability of clamping the housing, the lead screw 5 needs to have self-locking property, that is, the helix angles of the first external thread 51 and the second external thread 52 are both smaller than the equivalent friction angle.

[0036] Of course, the ways to drive the synchronous reverse sliding of the first clamping plate 31 and the second clamping plate 41 include but are not limited to the structure of the lead screw 5 in this embodiment. In some embodiments, two cylinders or telescopic rods can also be provided on the workbench 2 to directly drive the synchronous reverse sliding of the first clamping plate 31 and the second clamping plate 41.

[0037] It is worth mentioning that during the airtightness detection by brushing soapy water, the soapy water will drip onto the lead screw 5, causing the lead screw 5 to rust, thus affecting the normal transmission of the lead screw 5. Therefore, in this embodiment, a shielding plate 6 is provided above the lead screw 5 to shield the lead screw 5.

[0038] As Figure 6 shown, a second fixing plate 61 is provided on the shielding plate 6. The second fixing plate 61 is fixed to the lower end of the workbench 2. The shielding plate 6 is in an inverted V shape and can shield the upper part of the lead screw 5. When the soapy water falls onto the shielding plate 6, it will slide down along the inclined surface thereon to both sides of the lead screw 5, thus not causing the lead screw 5 to get damp and rust.

[0039] Moreover, in order to avoid interfering with the normal sliding of the first clamping plate 31 and the second clamping plate 41, V-shaped grooves 34 are respectively formed on the first clamping plate 31 and the second clamping plate 41. The shielding plate 6 respectively penetrates through the V-shaped grooves 34 on the first clamping plate 31 and the second clamping plate 41, so as to make way for the shielding plate 6 to ensure the normal sliding of the first clamping plate 31 and the second clamping plate 41.

[0040] In addition, two support components 7 are provided at the upper end of the workbench 2 to support the housing. When performing the assembly and detection of the housing, it is no longer necessary to manually hold the housing to operate the first clamping plate 31 and the second clamping plate 41 to move closer synchronously to complete the clamping.

[0041] As Figure 8As shown in the figure, the support assembly 7 includes a support base 71 fixed to the upper end of the workbench 2. On both sides of the upper end of the support base 71, a roller 72 is rotatably connected respectively. Both of the two rollers 72 are in rolling contact with the housing, realizing the support of the housing without affecting the rotational adjustment of the housing.

[0042] Of course, the number of the support assemblies 7 includes but is not limited to two in this embodiment. In some embodiments, the number of the support assemblies 7 can also be more than two.

[0043] A storage groove 1 is fixed to the lower end of the workbench 2 to store the soap liquid dripping from the housing and prevent it from falling to the ground.

[0044] Working principle:

[0045] By arranging two first clamping plate assemblies 3 and second clamping plate assemblies 4 that can slide synchronously and reversely on the workbench 2, and respectively rotatably connecting a first turntable 32 and a second turntable 42, and respectively arranging a first sealing gasket 33 and a second sealing gasket 43 on the first turntable 32 and the second turntable 42, the housing is clamped and both ends thereof are sealed. By arranging an air pipe 4 on the first turntable 32, under the action of an air pump, the inside of the housing is inflated, and then the surface of the housing is brushed with soapy water to judge the air leakage position according to the position of the bubbles, which is convenient for later repair of the air leakage position of the housing. By arranging an "inverted V" type baffle 6 above the lead screw 5, it is avoided that the soap water drops on the lead screw 5, causing the lead screw 5 to rust and thus affecting the normal transmission of the lead screw 5.

[0046] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0047] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A sealed connector housing air tightness detection device, comprising a workbench (2), characterized in that: The workbench (2) is provided with a first clamping plate (31) and a second clamping plate (41) which can slide synchronously in opposite directions; the first clamping plate (31) is rotatably connected to a first turntable (32), and a first sealing gasket (33) is fixed on the end surface of the first turntable (32); the second clamping plate (41) is rotatably connected to a second turntable (42), the second turntable (42) is coaxial with the first turntable (32), a second sealing gasket (43) is fixed on the second turntable (42), and an air pipe (44) is fixed on the second turntable (42), and the air pipe (44) simultaneously passes through the second clamping plate (41), the second turntable (42) and the second sealing gasket (43); the air pipe (44) is connected to an air pump; The first clamping plate (31) and the second clamping plate (41) are synchronously approached to clamp the shell and seal the two ends of the shell; and the surface of the shell is brushed with soapy water.

2. A sealed connector housing airtightness detection device according to claim 1, characterized in that: The air pipe (44) comprises an air nozzle (441), which passes through the center of the second rotating disk (42) and is sealed and fixed thereto; a hose (442) is connected to the air nozzle (441), and the hose (442) passes through the second clamping plate (41) and is connected to the air pump.

3. The airtightness detection device for a sealed connector housing according to claim 1, characterized in that: The first clamping plate (31) and the second clamping plate (41) are both slidably connected to the workbench (2), and the sliding direction is parallel to the axial direction of the shell; two first fixed plates (21) are arranged at the lower end of the workbench (2), and a screw rod (5) is rotatably connected between the two first fixed plates (21), and the two ends of the screw rod (5) are respectively provided with a first external thread (51) and a second external thread (52) with opposite rotation directions and equal pitches, and the first external thread (51) and the second external thread (52) respectively penetrate the second clamping plate (41) and the first clamping plate (31) and are threadedly connected thereto.

4. The airtightness detection device for a sealed connector housing according to claim 3, characterized in that: The thread lead angles of the first external thread (51) and the second external thread (52) are both smaller than the equivalent friction angle.

5. The airtightness detection device for a sealed connector housing according to claim 3, characterized in that: A shielding plate (6) is arranged above the screw rod (5) and is capable of shielding the upper part of the screw rod (5); a second fixing plate (61) fixed to the workbench (2) is arranged on the shielding plate (6).

6. The airtightness detection device for a sealed connector housing according to claim 5, characterized in that: The shielding plate (6) is in an "inverted V" shape.

7. The airtightness detection device for a sealed connector housing according to claim 6, characterized in that: The first clamping plate (31) and the second clamping plate (41) are both provided with V-shaped grooves (34), and the shielding plate (6) passes through the V-shaped grooves (34) on the first clamping plate (31) and the second clamping plate (41), respectively.

8. The airtightness detection device for a sealed connector housing according to claim 1, characterized in that: At least two support assemblies (7) are arranged at the upper end of the workbench (2), and the support assembly (7) comprises a support seat (71) fixed at the upper end of the workbench (2), and two sides of the upper end of the support seat (71) are rotatably connected to a roller (72), and the two rollers (72) are in rolling contact with the shell.

9. The airtightness detection device for a sealed connector housing according to claim 1, characterized in that: A receiving groove (1) is fixed at the lower end of the workbench (2) to receive soapy water dripping from the shell.

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