A quick clamp for airtightness test of a connector housing

Abstract

The utility model relates to connector casing test technical field discloses a kind of connector casing air tightness test quick fixture, including workbench, the outside rotation connection of workbench is rotated platform, the outside fixed connection of rotated platform is support plate, the outside fixed connection of support plate is motor, the drive end fixed connection of motor is bolt shaft, the outside rotation connection of bolt shaft is push axle, the one end rotation connection of push axle is axle sleeve, the outside rotation connection of rotated platform is multiple clamping handle, the outside of multiple clamping handle is slidably connected with rotating handle, the inside rotation connection of rotating handle is clamping wheel.The utility model in the quick fixture is driven screw mechanism by motor, it is converted into linear motion to rotate, linkage clamping mechanism is pushed, so that multiple soft clamping wheel is synchronously moved to center, to complete the stable clamping of connector casing quickly, automatically, effectively prevent injury and promote test efficiency and security.

Description

Technical Field

[0001] This utility model relates to the field of connector housing testing technology, and in particular to a quick fixture for testing the airtightness of connector housings. Background Technology

[0002] In the manufacturing process of connector housings, airtightness testing is a crucial step in verifying product quality and reliability. This test requires the housing to be securely clamped onto a testing fixture. Currently, many fixtures still rely on manual screw tightening or simple mechanical clips, which are cumbersome to operate, inefficient in clamping, and difficult to meet the cycle time requirements of mass production.

[0003] Meanwhile, due to the lack of effective force control and protection mechanisms, traditional rigid clamping methods are prone to causing indentations, scratches, and even structural deformation on the outer surface of the housing, leading to product scrap and increased production costs. Therefore, developing a dedicated fixture capable of rapid, automatic, and non-destructive clamping is crucial for improving testing efficiency and product quality. To address this, a rapid clamping fixture for connector housing airtightness testing is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick fixture for testing the airtightness of connector housings, aiming to improve the problems of cumbersome operation and easy damage in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-connect fixture for testing the airtightness of connector housings includes a worktable, a rotating platform rotatably connected to the outside of the worktable, a support plate fixedly connected to the outside of the rotating platform, a motor fixedly connected to the outside of the support plate, a bolt shaft fixedly connected to the drive end of the motor, a push shaft rotatably connected to the outside of the bolt shaft, a shaft sleeve rotatably connected to one end of the push shaft, multiple clamping handles rotatably connected to the outside of the rotating platform, rotating handles slidably connected to the outside of each of the multiple clamping handles, clamping wheels rotatably connected to the inside of each rotating handle, and a rotating assembly for facilitating the rotation testing of the connector housings on the outside of the rotating platform. As a further description of the above technical solution: The rotating assembly includes multiple ball grooves, which are formed on the outside of the rotating platform. Multiple telescopic columns are fixedly connected inside the platform, and springs are sleeved on the outside of the telescopic columns. A fixed ball is fixedly connected to one end of each of the multiple telescopic columns. As a further description of the above technical solution: The bolt shaft is externally spiral-shaped, and the push shaft is internally spiral-patterned. Thus, when the motor drives the bolt shaft to rotate, it pushes the push shaft to move. As a further description of the above technical solution: When the push shaft is controlled to move, it pushes the shaft sleeve to rotate outside the rotating table. When the shaft sleeve rotates, it causes the multiple rotating handles inside to rotate, thereby controlling the movement of the clamping handles inside, and the multiple clamping handles clamp the shaft. As a further description of the above technical solution: The clamping wheels are made of a softer material, and when multiple clamping handles clamp the connector housing axis for testing, they can effectively prevent damage to the connector housing. As a further description of the above technical solution: The connector housing is placed inside the rotating table. At this time, the motor is started, which drives the subsequent components to clamp the connector housing, facilitating airtightness testing. As a further description of the above technical solution: The rotating platform rotates inside the worktable. When it rotates to a suitable position, the engagement of multiple fixed balls with the ball grooves ensures that the rotating platform remains stable during rotation. As a further description of the above technical solution: The rotating platform rotates inside the workbench, and the multiple telescopic columns and the springs provide elastic force to engage with the ball groove outside the rotating platform to achieve fixation.

[0006] This utility model has the following beneficial effects: 1. In this utility model, the clamp is driven by a motor to convert rotation into linear motion, which in turn drives the linkage clamping mechanism to move multiple soft clamping wheels synchronously toward the center, thereby quickly and automatically completing the stable clamping of the connector housing, effectively preventing damage and improving testing efficiency and safety.

[0007] 2. In this invention, the rotating assembly uses a spring to provide pressure, causing the fixed ball to engage in a ball groove at the bottom of the rotating table. During rotation, the fixed ball slides out of the current ball groove and into the next one, achieving indexing positioning. This elastic engagement structure effectively prevents accidental shaking of the rotating table during operation, ensuring the accuracy and stability of the test position. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0009] Figure 1 This is a three-dimensional schematic diagram of a quick-release fixture for testing the airtightness of a connector housing according to the present invention. Figure 2 This is a schematic diagram of the structure of the spindle sleeve of a quick-release fixture for testing the airtightness of a connector housing, as proposed in this utility model. Figure 3 This is a schematic diagram of the clamping handle of a quick-release fixture for testing the airtightness of a connector housing, as proposed in this utility model. Figure 4 This is a schematic diagram of the fixed ball structure of a quick-release fixture for testing the airtightness of a connector housing, as proposed in this utility model.

[0010] Legend: 1. Workbench; 2. Rotary table; 3. Support plate; 4. Motor; 5. Bolt shaft; 6. Push shaft; 7. Spindle sleeve; 8. Clamping handle; 9. Rotating handle; 10. Clamping wheel; 11. Ball groove; 12. Telescopic column; 13. Spring; 14. Fixed ball. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0012] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0013] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0015] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] Reference Figures 1 to 3 This utility model provides an embodiment of a quick-release fixture for testing the airtightness of connector housings. It includes a workbench 1, which serves as the foundation and base of the entire fixture, supporting and fixing all other components. It is the main structural element of the fixture. A rotating platform 2 is rotatably connected to the workbench 1, serving as the core support platform. Its rotatable connection to the workbench 1 allows all clamping components mounted on it to rotate as a whole, facilitating the adjustment of the connector housing to different testing angles or positions. A support plate 3 is fixedly connected to the outside of the rotating platform 2, providing a robust mounting point. A motor 4 is fixedly connected to the outside of the support plate 3, serving as the power source for the fixture. When the connector housing is placed inside the rotating platform 2, the motor 4 is activated, driving subsequent components to clamp the connector housing for airtightness testing. A bolt shaft 5 is fixedly connected to the drive end of the motor 4, forming a precision helical transmission pair.

[0018] A push shaft 6 is rotatably connected to the outside of the bolt shaft 5. This design converts the rotational motion into linear reciprocating motion, thus pushing the actuator forward or backward. The bolt shaft 5 has a helical shape on the outside, and the push shaft 6 has helical patterns inside. When the motor 4 drives the bolt shaft 5 to rotate, it pushes the push shaft 6, causing it to move. A shaft sleeve 7 is rotatably connected to one end of the push shaft 6. This design serves as the core conversion component for achieving synchronous linkage clamping. Multiple clamping handles 8 are rotatably connected to the outside of the rotating table 2. This design allows for tightening towards the center or opening outward to clamp and release the workpiece. Rotary handles 9 are slidably connected to the outside of each clamping handle 8. As a precise push-pull action to the clamping handle 8, the clamping handle 8 is driven to rotate around its axis. When the push shaft 6 is controlled to move, it pushes the shaft sleeve 7 to rotate outside the rotating platform 2. When the shaft sleeve 7 rotates, it drives the multiple rotating handles 9 inside to rotate, thereby controlling the movement of the internal clamping handles 8. The multiple clamping handles 8 clamp the connector housing on the axis. The rotating handles 9 are internally connected to clamping wheels 10. This design is as the final component that directly contacts the connector housing. The clamping wheels 10 are made of a relatively soft material. When the multiple clamping handles 8 clamp the connector housing on the axis for testing, it can effectively prevent damage to the connector housing. The rotating platform 2 has a rotating component on the outside to facilitate the rotation and testing of the connector housing. Reference Figure 1 , Figure 4 The rotating assembly includes multiple ball grooves 11, which are designed to provide a series of precise positioning recesses. The ball grooves 11 are opened on the outside of the rotating table 2. Multiple telescopic columns 12 are fixedly connected inside the worktable 1, which are designed to provide guidance and ensure that it can only move in a straight line. Springs 13 are sleeved on the outside of the telescopic columns 12, which are designed to provide continuous elastic pressure. The rotating table 2 rotates inside the worktable 1. The multiple telescopic columns 12 and the springs 13 provide elastic force to engage with the ball grooves 11 on the outside of the rotating table 2 to achieve fixation. One end of each of the multiple telescopic columns 12 is fixedly connected to a fixed ball 14, which is designed to provide positioning and anti-rotation.

[0019] When the turntable needs to be rotated, a torque sufficient to allow the fixed ball 14 to overcome the spring force and disengage from the ball groove 11 must be applied. When rotating to the next ball groove position, the fixed ball 14 will automatically engage under the force of the spring 13, achieving accurate positioning and stable fixation, preventing the turntable from rotating unexpectedly during the test. The turntable 2 rotates inside the worktable 1. When it rotates to the appropriate position, the engagement of multiple fixed balls 14 with the ball groove 11 ensures that the turntable 2 remains stable while rotating.

[0020] Working Principle: A quick-release fixture for testing the airtightness of connector housings includes a worktable 1, to which a rotating platform 2 is rotatably connected. A support plate 3 is fixed on the rotating platform 2, and a motor 4 is mounted on the support plate 3. The drive end of the motor 4 is connected to a bolt shaft 5, which is rotatably connected to a push shaft 6. One end of the push shaft 6 is rotatably connected to a spindle sleeve 7. Multiple clamping handles 8 are rotatably connected to the outside of the rotating platform 2, and a rotating handle 9 is slidably connected to each clamping handle 8. A clamping wheel 10 is rotatably connected inside each rotating handle 9. When the connector housing is placed on the rotating platform 2, the motor 4 is started, driving the bolt shaft 5 to rotate. Because the bolt shaft 5 is helical and the push shaft 6 has helical grooves inside, the rotation of the bolt shaft 5 is converted into linear movement of the push shaft 6. The push shaft 6 then pushes the spindle sleeve 7 to rotate outside the rotating platform 2. The rotation of the spindle sleeve 7 drives the multiple rotating handles 9 to rotate. The rotating handles 9, through sliding connections, force the clamping handles 8 to move inward or outward, thereby achieving axial clamping of the connector housing by the multiple clamping handles 8. The clamping rollers 10 are made of a softer material, which effectively buffers pressure during clamping, preventing scratches or deformation to the connector housing surface. This design enables the fixture to complete clamping operations quickly and automatically, significantly improving the efficiency of airtightness testing while ensuring clamping stability and reliability, reducing human error, and making it suitable for batch testing scenarios, thus improving overall testing accuracy and safety.

[0021] The positioning and stabilization functions of the rotating assembly primarily rely on its intricate internal elastic locking structure. When the operator rotates the rotating table 2 to switch or adjust the workstation, the entire rotating table 2 rotates relative to the fixed worktable 1 below. During this rotation, the core positioning mechanism comes into play. Inside the worktable 1, multiple telescopic columns 12 are evenly distributed. Each telescopic column 12 has a fixed ball 14 fixed at its top, and a spring 13 continuously provides elastic force to the telescopic column 12 and the fixed ball 14, pointing towards the rotating table 2. At the bottom of the rotating table 2, multiple ball grooves 11 are correspondingly provided. The positions of these ball grooves 11 are precisely calculated to correspond one-to-one with the required workstation angle. When the rotating table 2 begins to rotate, the fixed ball 14, originally embedded in a certain ball groove 11, slides out from the inclined surface of the ball groove 11 under the influence of the table surface. This action forces the telescopic column 12 to compress its internal spring 13, causing the fixed ball 14 to temporarily detach from the ball groove 11 and come into contact with the smooth surface of the bottom of the rotating table 2. The operator will feel some rotational resistance, accompanied by a slight "clicking" sensation. As rotation continues, the fixed ball 14, under the pressure of the spring 13, slides close to the bottom surface of the rotary table 2 until it reaches the next predetermined station. At this point, the fixed ball 14, under the strong restoring force of the spring 13, quickly embeds itself into the new ball groove 11. This "slide-over-embed" cycle occurs every time a position is changed. Its core advantage lies in achieving indexing positioning through the precise cooperation between the ball and the groove. When the fixed ball 14 is completely inside the ball groove 11, the entire rotary table 2 is firmly locked at the current angle, effectively preventing the rotary table 2 from deflecting or shaking due to external vibration or accidental contact during subsequent testing or operation. This structure not only ensures rapid and accurate station changes but also greatly improves the stability of the equipment and the repeatability of the results during testing. Compared to traditional threaded locking or pin positioning, this elastic ball groove 11 structure operates more smoothly, requiring no additional locking steps. At the same time, it has a long mechanical life and high reliability, making it a key design feature that ensures the stability and reliability of the entire operation process.

[0022] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick-release fixture for testing the airtightness of connector housings, comprising a workbench (1), characterized in that: The workbench (1) is rotatably connected to a rotating platform (2), the rotating platform (2) is fixedly connected to a support plate (3), the support plate (3) is fixedly connected to a motor (4), the drive end of the motor (4) is fixedly connected to a bolt shaft (5), the bolt shaft (5) is rotatably connected to a push shaft (6), one end of the push shaft (6) is rotatably connected to a shaft sleeve (7), the rotating platform (2) is rotatably connected to a plurality of clamping handles (8), the plurality of clamping handles (8) are slidably connected to a rotating handle (9), the rotating handle (9) is rotatably connected to a clamping wheel (10), and the rotating platform (2) is provided with a rotating assembly for rotating the test connector housing.

2. The quick-release fixture for testing the airtightness of a connector housing according to claim 1, characterized in that: The rotating assembly includes multiple ball grooves (11), the ball grooves (11) are opened on the outside of the rotating platform (2), multiple telescopic columns (12) are fixedly connected inside the worktable (1), and springs (13) are sleeved on the outside of the telescopic columns (12). One end of each of the multiple telescopic columns (12) is fixedly connected to a fixed ball (14).

3. The quick-release fixture for testing the airtightness of a connector housing according to claim 1, characterized in that: The bolt shaft (5) is spiral-shaped on the outside, and the push shaft (6) is spiral-patterned inside. When the motor (4) drives the bolt shaft (5) to rotate, it pushes the push shaft (6) to move.

4. A quick-release fixture for testing the airtightness of a connector housing according to claim 1, characterized in that: When the push shaft (6) is controlled to move, it pushes the shaft sleeve (7) to rotate outside the rotating table (2). When the shaft sleeve (7) rotates, it causes the multiple rotating handles (9) inside to rotate, thereby controlling the movement of the clamping handles (8) inside, and the multiple clamping handles (8) are clamped by the shaft.

5. A quick-release fixture for testing the airtightness of a connector housing according to claim 1, characterized in that: The clamping wheel (10) is made of a softer material. When the multiple clamping handles (8) clamp the connector housing axis for testing, they can effectively prevent damage to the connector housing.

6. A quick-release fixture for testing the airtightness of a connector housing according to claim 1, characterized in that: The connector housing is placed inside the rotating table (2), and the motor (4) is started to drive the subsequent components to clamp the connector housing for easy airtightness testing.

7. A quick-release fixture for testing the airtightness of a connector housing according to claim 2, characterized in that: The rotating platform (2) rotates inside the worktable (1). When it rotates to a suitable position, the engagement of multiple fixed balls (14) with the ball groove (11) controls the rotation of the rotating platform (2) to remain stable.

8. A quick-release fixture for testing the airtightness of a connector housing according to claim 2, characterized in that: The rotating platform (2) rotates inside the worktable (1), and the multiple telescopic columns (12) and the spring (13) provide elastic force to engage with the ball groove (11) outside the rotating platform (2) to achieve fixation.

Images