CN222887597U

CN222887597U - A multi-station air tightness testing device

Info

Publication number: CN222887597U
Application number: CN202421527828.8U
Authority: CN
Inventors: 陈志东
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-07-01
Filing date: 2024-07-01
Publication date: 2025-05-20
Anticipated expiration: 2034-07-01

Abstract

A multi-station airtightness test device, characterized in that the device includes a whole machine bottom plate, a test fixture unit, a fixture movable base, an air supply unit, a solenoid valve unit, and a flow meter unit. The fixture movable base is fixedly arranged on the whole machine bottom plate, and the test fixture unit is installed on the fixture movable base. The air supply unit is connected to the test fixture unit through the solenoid valve unit air path, and a flow meter unit is arranged in the middle of the air path below the air supply unit. The fixture test unit includes multiple test stations, and the flow meter unit includes flow meters corresponding to the number of test stations. The multi-station airtightness test device involved in the utility model improves the air flow test effect by improving the structure of the test seat assembly, so that the test device has the adaptability and versatility of different parts. As long as it is a shaft-like or tube-like type part, it can be adapted and airtightness tested. At the same time, multiple stations are integrated, and multiple pointer-type display gas meters are arranged at conspicuous positions behind the stations, which can directly judge the existence of good and bad products.

Description

Multistation gas tightness testing arrangement

[ Field of technology ]

The utility model relates to the technical field of machining, in particular to a device for testing air tightness of automobile series parts.

[ Background Art ]

The ABS is used as a core component of a modern automobile, the performance of the ABS has great influence on the life safety of a driver, and the life safety hidden trouble can be caused when the ABS is in failure. In an ABS anti-lock braking system, a certain type of automobile shaft series parts exist, and gas paths with different specifications are required to meet the requirement of severe gas flow, so that the parts are required to be subjected to gas tightness test after machining, and the parts are generally loaded into a sealing clamp for pressurization and ventilation, the numerical values are automatically displayed through a detection flowmeter, and the gas leakage and rough gas leakage of the parts are identified.

The existing testing device needs to be designed and manufactured into a special sealing clamp, is special for a special die, increases the cost input of testing, and has no universality. In addition, the existing airtight testing device adopts a meter to be complex, the reading process needs to consume time, the training difficulty of operators is increased, the requirement on the proficiency of the operators is high, and the efficiency is not high enough in the process of sequentially operating at a single station.

[ Invention ]

The utility model provides a test effect for improving the air flow, so that the test device has universality of adaptation of different parts, can be matched with different parts to perform air tightness test, is integrated with a plurality of stations, is provided with a plurality of pointer type display gas meters at the positions which are highlighted after the stations, does not need to read the meter, directly looks at the pointer position offset at a glance, can acquire a conclusion through visual comparison, and does not need to confirm and distinguish to read.

The utility model relates to a multi-station air tightness testing device which is characterized by comprising a complete machine bottom plate, a testing jig unit, a jig moving base, an air supply unit, an electromagnetic valve unit and a flowmeter unit, wherein the jig moving base is fixedly arranged on the complete machine bottom plate, the testing jig unit is arranged on the jig moving base, the air supply unit is connected to the testing jig unit through an air passage of the electromagnetic valve unit, the flowmeter unit is arranged in the middle of an air passage below the air supply unit, a plurality of testing stations are arranged in the testing jig unit, and the flowmeter unit comprises flowmeters which are equivalent to the testing stations in number.

The test jig unit comprises a plurality of test stations, and each test station comprises a test seat assembly for placing a workpiece, an upper compression clamp and a clamp cylinder for driving the upper compression clamp to lift and compress.

The test fixture unit further comprises a fixture cylinder fixing frame, the plurality of fixture cylinders are arranged on the top of the fixture cylinder fixing frame, and valve rods of the fixture cylinders are connected with the upper compression fixtures towards the direction of the test seat.

Each test seat assembly comprises a cylindrical seat body, a sealing rubber ring, an air inlet connector and a test seat fixing plate, wherein the cylindrical seat body is arranged on the jig moving base through the test seat fixing plate, the sealing rubber ring is arranged in the cylindrical seat body, and the air inlet connector is arranged at the lower part of the cylindrical seat body.

And a limiting block is arranged on the side surface of the upper pressing clamp.

The jig moving base comprises a guide rail, a moving slide block and a moving base cylinder, wherein the guide rail is fixed on a bottom plate of the whole jig, and the moving slide block is pushed by the moving base cylinder to move towards the lower part of the upper pressing clamp/away from the upper pressing clamp in a reciprocating manner.

The device also comprises an electric box, and the air supply unit and the flowmeter unit are both installed and fixed on the electric box.

An electromagnetic valve unit is arranged below the flowmeter unit.

According to the multi-station air tightness testing device, the air flow testing effect is improved through improving the structure of the testing seat assembly, so that the testing device has different part adaptation universality, can adapt to and perform air tightness testing on all kinds of shaft-like body type parts, integrates a plurality of stations, and can directly judge whether good products exist or not by correspondingly arranging a plurality of pointer type display gas meters at the positions of the stations.

[ Description of the drawings ]

FIG. 1 is a schematic diagram of the overall structure of a multi-station air tightness testing device according to the present utility model;

FIG. 2 is a schematic diagram showing the partial structure disassembly of a multi-station air tightness testing device according to the present utility model;

FIG. 3 is a cross-sectional view of a test fixture unit of a multi-station air tightness test device according to the present utility model;

FIG. 4 is a partial cross-sectional view of a test seat assembly in accordance with the present utility model.

The device comprises 10 parts of a whole machine bottom plate, 20 parts of a test jig unit, 21 parts of a test seat assembly, 211 parts of a cylindrical seat body, 212 parts of a sealing rubber ring, 213 parts of an air inlet joint, 214 parts of a test seat fixing plate, 22 parts of a compression clamp, 221 parts of a limiting block, 23 parts of a clamp cylinder, 24 parts of a clamp cylinder fixing frame, 30 parts of a jig moving base, 31 parts of a guide rail, 32 parts of a moving slide block, 33 parts of a moving base cylinder;

40. 50 parts of air supply unit, 60 parts of electromagnetic valve unit, 60 parts of flowmeter unit, 61 parts of flowmeter, 70 parts of electric box, 100 parts of component, 101 parts of pressure maintaining space.

[ Detailed description ] of the invention

The present utility model will be described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1, there is shown a multi-station air tightness testing device, which comprises a complete machine base plate 10, a testing jig unit 20, a jig moving base 30, an air supply unit 40, an electromagnetic valve unit 50 and a flowmeter unit 60, wherein the jig moving base 30 is fixedly arranged on the complete machine base plate 10, the testing jig unit 20 is arranged on the jig moving base 30, the air supply unit 40 is connected to the testing jig unit 20 through an air passage of the electromagnetic valve unit 50, the flowmeter unit 60 is arranged in the middle of an air passage below the air supply unit 40, a plurality of testing stations are included in the testing jig unit 20, and the flowmeter unit 60 comprises a flowmeter 61 with the number equal to that of the testing stations.

The test fixture unit 20 comprises a plurality of test stations, and each test station comprises a test seat assembly 21 for placing a workpiece, an upper pressing fixture 22 and a fixture cylinder 23 for driving the upper pressing fixture to lift and press. It is not difficult to intuitively see from fig. 1 that the test fixture unit is provided with four stations, and according to specific human hand evaluation and efficiency requirements, how many stations are actually required to be provided, and the test fixture unit can also be automatically adjusted and configured.

The test fixture unit 20 further comprises a fixture cylinder fixing frame 24, the plurality of fixture cylinders 23 are erected on the top of the fixture cylinder fixing frame 24, and valve rods of the fixture cylinders 23 are connected with the upper pressing fixtures 22 towards the direction of the test seat assembly 21.

Referring now to fig. 2 and 3, therein are shown exploded views of the overall structure of the test unit 20, in which we can fully and explicitly observe the combined structural relationships of the various parts of the test unit 20 and the placement of the components within the test unit 20.

Each test seat assembly 21 comprises a cylindrical seat body 211, a sealing rubber ring 212, an air inlet connector 213 and a test seat fixing plate 214, wherein the cylindrical seat body 211 is installed on the jig moving base 30 through the test seat fixing plate 214, the sealing rubber ring 212 is arranged in the cylindrical seat body 211, and the air inlet connector 213 is arranged at the lower part of the cylindrical seat body 211.

A stopper 221 is provided on a side surface of the upper pressing jig 22.

The jig moving base 30 comprises a guide rail 31, a moving slide block 32 and a moving base cylinder 33, wherein the guide rail 31 is fixed on the whole machine base plate 10, and the moving slide block 32 is pushed by the moving base cylinder 33 to reciprocate towards the lower part of the upper pressing clamp or away from the upper clamping clamp.

The device also comprises an electric box 70, and the air supply unit and the flowmeter unit 60 are both arranged and fixed on the electric box 70.

The electromagnetic valve unit 50 is arranged below the flow meter 61 unit, on the practical product, an electromagnetic valve switch in the electromagnetic valve unit is connected with the test jig unit 20 through an air pipe (not shown), specifically, the electromagnetic valve switch is connected with the air inlet joint 213 in the test jig unit 20 to be ventilated and introduced into the cylindrical seat 211, the part 100 to be tested is placed into an inner hole of the cylindrical seat 211, the part 100 to be tested and the cylindrical seat 211 are sealed through the sealing rubber ring 212, the sealing rubber ring 212 is used for sealing a gap of leakage air below the part, and the limiting block 221 is used for guiding and limiting the part 100.

Referring to fig. 3 and 4, the working process and principle of the air tightness testing device are described by turning on the power supply, adjusting the air supply system 40, adjusting the constant air pressure of the inlet of the filter, adjusting the air pressure and stabilizing the air pressure by the air pressure meter, correcting the sample values, putting 4 parts 100 into the cylindrical seat 211 of the testing jig unit 20, starting the moving base cylinder 33 in the jig moving base 30 to drive the moving slide block 32 to slide along the guide rail 31, and arranging the testing jig unit on the moving slide block 32 through the testing base fixing plate 214, so that the cylinder pushes the whole testing jig unit 20 to move to the lower position of the upper pressing jig 22, pressing the upper pressing jig 22 down after the air pressure reaches the designated position, tightly pressing the lower cylindrical seat 211, and attaching and sealing. A pressure maintaining space 101 is formed between the upper pressing jig 22 and the part 100, air pressure is injected into the pressure maintaining space 101, sealing is carried out through two sealing rubber rings 212, and the two sealing rubber rings are respectively arranged between the upper pressing jig 22 and the joint surface of the cylindrical base 211 and at the step clamping end of the part 100 to prevent air leakage.

After 1 second, the air pressure is set, the air tightness detection flow meter 61 starts to detect output data, after the pressure is maintained for 10 seconds, if the air pressure is reduced, the defect exists in the part, the micro cracks exist, the air leakage is caused, and the air pressure is kept stable and unchanged, so that the finished product is free of defects. And identifying good products and defective products through a row of well-arranged flow meters, and subsequently exhausting. And the upper mechanism clamp cylinder 4 paths of good products are loosened, the upper clamping clamp 22 is retracted, and the products are taken out. If the defective product is pressed by the defective product clamp cylinder, a reset key is needed to be pressed manually, the cylinder is moved back quickly, defective products are taken out and placed separately, and thus alternate testing is carried out.

While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that the present utility model is not limited thereto, and that the utility model is not limited thereto, but may be practiced without departing from the scope of the utility model, when the technical content disclosed above is utilized to make a little change or modification into equivalent embodiments of equivalent changes, but the technical content of the utility model is not deviated from, any simple modification, equivalent changes and modification of the above embodiments are all within the scope of the technical solution of the utility model.

Claims

1. The utility model provides a multistation gas tightness testing arrangement, its characterized in that, the device includes complete machine bottom plate, test tool unit, tool remove the base, air feed unit, solenoid valve unit, flowmeter unit, has set up the tool on the complete machine bottom plate and has removed the base install test tool unit on the tool removes the base, air feed unit is connected to test tool unit through solenoid valve unit gas circuit be equipped with flowmeter unit in the middle of air feed unit below gas circuit test tool unit is interior to include a plurality of test stations, and flowmeter unit contains the flowmeter that is equivalent with test station quantity.

2. The multi-station air tightness testing device according to claim 1, wherein the testing jig unit comprises a plurality of testing stations, and each testing station comprises a testing seat assembly for placing a workpiece, an upper pressing clamp and a clamp cylinder for driving the upper pressing clamp to lift and press.

3. The multi-station air tightness testing device according to claim 2, wherein the testing jig unit further comprises a fixture cylinder fixing frame, the plurality of fixture cylinders are arranged on the top of the fixture cylinder fixing frame, and a valve rod of each fixture cylinder is connected with the upper pressing fixture towards the direction of the testing seat.

4. A multi-station air tightness testing device according to claim 3, wherein each testing seat assembly comprises a cylindrical seat body, a sealing rubber ring, an air inlet joint and a testing seat fixing plate, wherein the cylindrical seat body is arranged on the jig moving base through the testing seat fixing plate, the sealing rubber ring is arranged in the cylindrical seat body, and the air inlet joint is arranged at the lower part of the cylindrical seat body.

5. The multi-station air tightness testing device according to claim 2, wherein a limiting block is arranged on the side surface of the upper pressing clamp.

6. The multi-station air tightness testing device according to claim 4, wherein the jig moving base comprises a guide rail, a moving slide block and a moving base cylinder, the guide rail is fixed on a bottom plate of the whole machine, and the moving slide block is pushed by the moving base cylinder to reciprocate towards the lower part of the upper pressing clamp and away from the upper clamping clamp.

7. The multi-station air tightness testing device according to claim 1, further comprising an electric box, wherein the air supply unit and the flowmeter unit are both installed and fixed on the electric box.

8. The multi-station air tightness test device according to claim 7, wherein a solenoid valve unit is provided below the flow meter unit.