Immersion type automobile steering gear shell air tightness detection device

By designing a liquid-immersion automotive steering gear housing airtightness testing device, and utilizing components such as servo motors and electric cylinders to achieve automated clamping and transfer, the problem of incomplete manual sealing is solved, and the testing efficiency and effectiveness are improved.

CN223769693UActive Publication Date: 2026-01-06南京朗劲智能制造有限公司
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Patent Information

Application Number
CN202520419112.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-06
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

In existing methods for testing the airtightness of automotive electronic steering gear housings, manual sealing is incomplete and inefficient, affecting production speed and testing results.

Method used

A liquid-immersed automotive steering gear housing air tightness testing device is designed. It uses a servo motor to drive a rotating component, an electric cylinder to drive a linear moving component, and an air pump to perform air tightness testing, thereby realizing automated clamping and transfer, support component separation testing, and loading and unloading processes.

Benefits of technology

This improved the efficiency of airtightness testing for automotive electronic steering gear housings, ensured testing results, separated the testing process from the loading and unloading process, and increased production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid immersion type automobile steering gear shell air tightness detection device, which comprises a water storage assembly, the water storage assembly is used for bearing a rotating assembly and air tightness detection liquid, and the rotating assembly is used for driving a supporting assembly to rotate circumferentially and enabling an automobile steering gear shell to enter and exit from the air tightness detection liquid. The supporting assembly is used for bearing the linear driving assembly and the pneumatic output assembly; according to the utility model, the function of automatically clamping and transferring the automobile electronic steering gear shell is realized, and the air tightness detection operation can be timely carried out on the transferred automobile electronic steering gear shell, so that the detection effect of the finished automobile electronic steering gear shell is ensured; the automobile electronic steering gear shell air tightness detection device realizes mutual separation of the automobile electronic steering gear shell detection process and the loading and unloading process, improves the air tightness detection efficiency of the automobile electronic steering gear shell, and is simple in structure, high in practicability and suitable for wide popularization and use.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile steering gear housing air tightness detection, specifically is a kind of immersion liquid type automobile steering gear housing air tightness detection device. BACKGROUND

[0002] Automobile electronic steering gear housing is an important component of automobile steering system, for fixing and protecting the components and hydraulic system inside steering gear, while enhancing the rigidity of steering gear and improving response speed.

[0003] At present, automobile electronic steering gear housing needs to carry out air tightness detection operation after production completion, and the existing automobile electronic steering gear housing generally adopts manual plugging to carry out air tightness detection, which leads to the condition that plugging is not complete in detection process, and the efficiency of manual plugging is low, which not only seriously affects the production speed of automobile electronic steering gear housing, but also makes the detection effect of finished automobile electronic steering gear housing poor, so a kind of immersion liquid type automobile steering gear housing air tightness detection device needs to be designed. SUMMARY

[0004] In view of the above situation, in order to solve the problem that the existing automobile electronic steering gear housing generally adopts manual plugging to carry out air tightness detection, which leads to the condition that plugging is not complete in detection process, and the efficiency of manual plugging is low, which not only seriously affects the production speed of automobile electronic steering gear housing, but also makes the detection effect of finished automobile electronic steering gear housing poor, the utility model provides a kind of immersion liquid type automobile steering gear housing air tightness detection device, which effectively realizes the function of automatically clamping and transferring automobile electronic steering gear housing, and the automobile electronic steering gear housing can be timely subjected to air tightness detection operation after transfer, guarantees the detection effect of finished automobile electronic steering gear housing, realizes the condition that automobile electronic steering gear housing detection process and feeding process are separated from each other, and improves the air tightness detection efficiency of automobile electronic steering gear housing.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of immersion liquid type automobile steering gear housing air tightness detection device, including water storage component, the water storage component is used to bear rotating component and liquid for air tightness detection, the rotating component is used to drive support component to carry out circumferential rotation and make automobile steering gear housing can enter and exit liquid for air tightness detection, the support component is used to bear linear drive component and gas output component, the linear drive component is used to drive plugging component to carry out linear movement to complete plugging and clamping by plugging component to the both ends opening of automobile steering gear housing, the gas output component is used to carry out inflation operation to the automobile steering gear housing inside after clamping by linear drive component.

[0006] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the water storage assembly includes a box, the upper surface of the box is provided with a water storage groove, and the inner side wall of the water storage groove is provided with a water inlet pipe and a water outlet pipe.

[0007] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the rotating assembly includes a servo motor, the servo motor is detachably connected to the inner side wall of the water storage groove, and the output shaft of the servo motor is connected with a rotating shaft.

[0008] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the support assembly includes a support plate, the support plate is detachably connected to the outer side wall of the rotating shaft, and the outer side wall of the support plate is provided with a side groove.

[0009] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the linear drive assembly includes an electric cylinder, the electric cylinder is detachably connected to the inner side wall of the side groove, one end of a pneumatic telescopic rod is slidably connected to the inner side wall of the electric cylinder, the other end of the pneumatic telescopic rod is detachably connected to a connecting plate, a limiting rod is arranged on the side wall of the side of the connecting plate close to the electric cylinder, a limiting hole is formed in the outer side wall of the electric cylinder, and the outer side wall of the limiting rod is slidably connected with the inner side wall of the limiting hole.

[0010] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the plugging assembly includes a pressing plate, the pressing plate is detachably connected to the outer side wall of the side of the connecting plate away from the electric cylinder, one end of a pressing rod is arranged on the outer side wall of the side of the pressing plate close to the connecting plate, and the other end of the pressing rod is provided with a plug.

[0011] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the pneumatic output assembly includes an air pump, the air pump is detachably connected to the inner side wall of the side groove, one end of a gas conveying pipe is connected to the gas output end of the air pump, the other end of the gas conveying pipe is connected with a gas nozzle, and the gas nozzle is inserted into the plug.

[0012] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the number of the linear drive assembly and the plugging assembly is two, and the two linear drive assemblies are symmetrically distributed on the inner side wall of the side groove.

[0013] The preceding liquid immersion type automobile steering gear housing air tightness detection device, the number of the side groove is multiple, and the multiple side grooves are uniformly distributed on the outer side wall of the support plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) First, the car steering gear housing is moved and placed on the inner side wall of the side groove. Then, the pneumatic telescopic rod is driven to slide by the electric cylinder, which can drive the connecting plate and the pressure plate to move linearly. At the same time, the linear movement of the connecting plate and the pressure plate is relatively stable under the action of the limit rod sliding along the limit hole. Then, the linear movement of the pressure plate can drive the plug to press the car electronic steering gear housing. Subsequently, the servo motor drives the rotating shaft to rotate, which can drive the support plate to rotate in a circle. Then, the car electronic steering gear housing clamped by the linear drive assembly and the sealing assembly can sink into the liquid inside the water tank. Then, the air pump can input the airflow through the air pipe and the air nozzle into the car electronic steering gear housing clamped by the linear drive assembly and the sealing assembly for air tightness testing. This effectively realizes that the device has the function of automatically clamping and transferring the car electronic steering gear housing. After the transfer, the car electronic steering gear housing can also be tested for air tightness in a timely manner, ensuring the testing effect of the finished car electronic steering gear housing.

[0016] (2) Multiple side slots are provided on the outer side wall of the support plate so that a set of linear drive components, sealing components and pneumatic output components can be installed on the inner side wall of each side slot. This allows the air tightness test of the electronic steering gear housing to be performed while the electronic steering gear housing is being loaded and unloaded under the action of the servo motor driving the support plate to rotate. This effectively realizes that the testing process and the loading and unloading process of the electronic steering gear housing are separated, thus improving the air tightness test efficiency of the electronic steering gear housing. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Fig. 2 This is a schematic diagram of the water storage component, rotating component, and supporting component of this utility model;

[0020] Fig. 3 This is a schematic diagram of the linear drive assembly and the sealing assembly of this utility model;

[0021] Fig. 4 This is a schematic diagram of the pneumatic output component of this utility model;

[0022] In the diagram: 1. Water storage assembly; 101. Box body; 102. Water storage tank; 103. Water inlet pipe; 104. Water outlet pipe; 2. Rotating assembly; 201. Servo motor; 202. Rotating shaft; 3. Support assembly; 301. Support plate; 302. Side groove; 4. Linear drive assembly; 401. Electric cylinder; 402. Pneumatic telescopic rod; 403. Connecting plate; 404. Limiting rod; 405. Limiting hole; 5. Sealing assembly; 501. Pressure plate; 502. Pressure rod; 503. Plug; 6. Pneumatic output assembly; 601. Air pump; 602. Air supply pipe; 603. Air nozzle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0024] Depend on Figs. 1-4 This invention discloses a liquid-immersion type automotive steering gear housing airtightness testing device, comprising a water storage component 1, which carries a rotating component 2 and an airtightness testing liquid. The rotating component 2 drives a support component 3 to rotate circumferentially, allowing the automotive steering gear housing to enter and exit the airtightness testing liquid. The support component 3 carries a linear drive component 4 and a pneumatic output component 6. The linear drive component 4 drives a sealing component 5 to move linearly, thereby sealing and clamping the openings at both ends of the automotive steering gear housing. The pneumatic output component 6 inflates the interior of the automotive steering gear housing after it is clamped by the linear drive component 4. This invention achieves automated clamping and transfer of automotive electronic steering gear housings, and the automotive electronic steering gear housing can still be subjected to timely airtightness testing after transfer, ensuring the testing effect of the finished automotive electronic steering gear housing.

[0025] Specifically, the water storage component 1 includes a box 101, and a water storage tank 102 is provided on the upper surface of the box 101. An inlet pipe 103 and an outlet pipe 104 are inserted into the inner side wall of the water storage tank 102. Water can be introduced into and out of the water storage tank 102 through the inlet pipe 103 and the outlet pipe 104 respectively.

[0026] Specifically, the rotating component 2 includes a servo motor 201, which is detachably connected to the inner wall of the water storage tank 102. The output shaft of the servo motor 201 is connected to a rotating shaft 202. The servo motor 201 drives the rotating shaft 202 to rotate, thereby driving the support plate 301 to rotate in a circle. This, in turn, drives the car electronic steering gear housing, which is clamped by the linear drive component 4 and the sealing component 5, to sink into the liquid inside the water storage tank 102.

[0027] Specifically, the support assembly 3 includes a support plate 301, which is detachably connected to the outer wall of the rotating shaft 202. The outer wall of the support plate 301 is provided with a side groove 302. The support assembly 3 enables the device to separate the detection process of the automotive electronic steering gear housing from the loading and unloading process, thereby improving the airtightness detection efficiency of the automotive electronic steering gear housing.

[0028] Specifically, the linear drive assembly 4 includes an electric cylinder 401, which is detachably connected to the inner wall of the side groove 302. One end of a pneumatic telescopic rod 402 is slidably connected to the inner wall of the electric cylinder 401, and the other end of the pneumatic telescopic rod 402 is detachably connected to a connecting plate 403. A limit rod 404 is provided on the outer wall of the connecting plate 403 facing the electric cylinder 401. A limit hole 405 is provided on the outer wall of the electric cylinder 401. The outer wall of the limit rod 404 is slidably connected to the inner wall of the limit hole 405. The operation of the electric cylinder 401 drives the pneumatic telescopic rod 402 to extend and slide, thereby driving the connecting plate 403 and the pressure plate 501 to move linearly. At the same time, the linear movement of the connecting plate 403 and the pressure plate 501 is relatively stable under the action of the limit rod 404 sliding along the limit hole 405.

[0029] Specifically, the sealing assembly 5 includes a pressure plate 501, which is detachably connected to the outer wall of the connecting plate 403 away from the electric cylinder 401. One end of the pressure plate 501 is provided with a pressure rod 502 on the outer wall of the connecting plate 403, and the other end of the pressure rod 502 is equipped with a plug 503. The linear movement of the pressure plate 501 can drive the plug 503 to press against the car electronic steering gear housing.

[0030] Specifically, the pneumatic output component 6 includes an air pump 601, which is detachably connected to the inner wall of the side groove 302. The gas output end of the air pump 601 is connected to one end of the air supply pipe 602, and the other end of the air supply pipe 602 is connected to an air nozzle 603. The air nozzle 603 is inserted into the plug 503. By operating the air pump 601, airflow can be input through the air supply pipe 602 and the air nozzle 603 into the interior of the automotive electronic steering gear housing clamped by the linear drive component 4 and the sealing component 5 for air tightness testing.

[0031] Specifically, there are two linear drive components 4 and two blocking components 5, and the two linear drive components 4 are symmetrically distributed on the inner side wall of the side groove 302. The multiple side grooves 302 opened on the outer side wall of the support plate 301 enable each side groove 302 to be equipped with a set of linear drive components 4, blocking components 5 and pneumatic output components 6.

[0032] Specifically, there are multiple side grooves 302, and the multiple side grooves 302 are evenly distributed on the outer side wall of the support plate 301. Under the action of the servo motor 201 driving the support plate 301 to rotate, the air tightness test of the automotive electronic steering gear housing can be carried out at the same time, and the loading and unloading of the automotive electronic steering gear housing can be carried out simultaneously.

[0033] In use, firstly, the car steering gear housing is moved and placed on the inner wall of the side groove 302. Then, the electric cylinder 401 drives the pneumatic telescopic rod 402 to extend and slide, thereby driving the connecting plate 403 and the pressure plate 501 to move linearly. At the same time, the linear movement of the connecting plate 403 and the pressure plate 501 is relatively stable due to the sliding action of the limit rod 404 along the limit hole 405. Next, the linear movement of the pressure plate 501 drives the plug 503 to press the car electronic steering gear housing. Then, the servo motor 201 drives the rotating shaft 202 to rotate, thereby driving the support plate 301 to rotate circumferentially. This causes the car electronic steering gear housing, clamped by the linear drive assembly 4 and the sealing assembly 5, to sink into the liquid inside the water tank 102. Then, the air pump 601 drives the airflow through the air pipe 602 and the air nozzle 603 to enter the liquid inside the water tank 102, which is clamped by the linear drive assembly 4 and the sealing assembly 5. The device performs airtightness testing on the interior of the automotive electronic steering gear housing, effectively enabling automated clamping and transfer of the housing. After transfer, the housing can still undergo timely airtightness testing, ensuring the testing effect of the finished product. Finally, multiple side slots 302 on the outer wall of the support plate 301 allow for the installation of a linear drive assembly 4, a sealing assembly 5, and a pneumatic output assembly 6 on the inner wall of each slot. This allows the airtightness testing of the automotive electronic steering gear housing to be performed simultaneously with the loading and unloading of the housing, driven by the servo motor 201. This effectively separates the testing and loading / unloading processes, improving the efficiency of airtightness testing.

[0034] The servo motor 201, electric cylinder 401 and air pump 601 are all finished products manufactured using existing technology and can be purchased on the market; the components are all general standard parts or parts known to those skilled in the art, and their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of liquid immersion automobile steering gear housing air tightness detection device, including water storage component (1), it is characterized in that: The water storage assembly (1) is used for carrying the rotating assembly (2) and the liquid for air tightness detection, the rotating assembly (2) is used for driving the support assembly (3) to rotate circumferentially and enabling the automobile steering gear housing to enter and exit the liquid for air tightness detection, the support assembly (3) is used for carrying the linear drive assembly (4) and the pneumatic output assembly (6), the linear drive assembly (4) is used for driving the plugging assembly (5) to move linearly so that the plugging assembly (5) completes the plugging and clamping of the openings at the two ends of the automobile steering gear housing, and the pneumatic output assembly (6) is used for inflating the automobile steering gear housing clamped by the linear drive assembly (4).

2. The device for detecting air tightness of a steering gear housing according to claim 1, wherein: The water storage assembly (1) comprises a box body (101), a water storage groove (102) is formed in the upper surface of the box body (101), and a water inlet pipe (103) and a water outlet pipe (104) are inserted into the inner side wall of the water storage groove (102).

3. The device for detecting air tightness of a steering gear housing according to claim 2, wherein: The rotating assembly (2) comprises a servo motor (201), the servo motor (201) is detachably connected to the inner side wall of the water storage groove (102), and the output shaft of the servo motor (201) is connected with a rotating shaft (202).

4. The device for detecting air tightness of a steering gear housing according to claim 3, wherein: The support assembly (3) comprises a support plate (301), the support plate (301) is detachably connected to the outer side wall of the rotating shaft (202), and a side groove (302) is formed in the outer side wall of the support plate (301).

5. The device for detecting air tightness of a steering gear housing according to claim 4, wherein: The linear drive assembly (4) comprises an electric cylinder (401), the electric cylinder (401) is detachably connected to the inner side wall of the side groove (302), one end of a pneumatic telescopic rod (402) is slidably connected to the inner side wall of the electric cylinder (401), the other end of the pneumatic telescopic rod (402) is detachably connected with a connecting plate (403), a limiting rod (404) is arranged on the side wall of the connecting plate (403) away from the electric cylinder (401), a limiting hole (405) is formed in the outer side wall of the electric cylinder (401), and the outer side wall of the limiting rod (404) is slidably connected with the inner side wall of the limiting hole (405).

6. The device for detecting air tightness of a steering gear housing according to claim 5, wherein: The plugging assembly (5) comprises a pressing plate (501), the pressing plate (501) is detachably connected to the outer side wall of the connecting plate (403) away from the electric cylinder (401), one end of a pressing rod (502) is arranged on the side wall of the pressing plate (501) away from the connecting plate (403), and the other end of the pressing rod (502) is provided with a plug (503).

7. The device for detecting air tightness of a steering gear housing according to claim 6, wherein: The pneumatic output assembly (6) comprises an air pump (601), the air pump (601) is detachably connected to the inner side wall of the side groove (302), one end of a gas conveying pipe (602) is connected with the gas output end of the air pump (601), the other end of the gas conveying pipe (602) is connected with an air nozzle (603), and the air nozzle (603) is inserted into the plug (503).

8. The device for detecting air tightness of a steering gear housing according to claim 6, wherein: The number of the linear drive assembly (4) and the plugging assembly (5) is two, and the two linear drive assemblies (4) are symmetrically arranged on the inner side wall of the side groove (302).

9. The apparatus for detecting air tightness of a steering gear housing according to claim 4, wherein: The number of the side grooves (302) is multiple, and the multiple side grooves (302) are uniformly distributed on the outer side wall of the support plate (301).