CN219178836U

CN219178836U - Automobile plastic part end cover leakage test equipment

Info

Publication number: CN219178836U
Application number: CN202223310842.6U
Authority: CN
Inventors: 王欢; 徐培华
Original assignee: Xuanjia Intelligent Technology Co ltd
Current assignee: Xuanjia Intelligent Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-06-13
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses an automobile plastic part end cover leakage test device. In order to fill the gap of the prior art for detecting the leakage of the automobile end cover, the utility model adopts the three-station turntable and the plugging detection structure comprising the air cavity plugging block and the air duct, and the plugging detection structure is designed, so that the plugging block is replaceable to a certain extent, the casting cost of equipment is reduced, the maintenance of the plugging block is convenient, and the automation of the end cover leakage detection is also realized.

Description

Automobile plastic part end cover leakage test equipment

Technical Field

The utility model relates to the field of leakage testing equipment, in particular to leakage testing equipment for an automobile end cover.

Background

In the automobile industry, based on design and use requirements, the air tightness of an automobile end cover is always a very important part, and the automobile end cover is generally applied to an automobile engine or an automobile engine component, so that whether the air tightness of the automobile end cover is good or not directly influences the performance, the safety and the service life of the automobile engine and related devices. And thus becomes particularly important for the air tightness detection of automotive end caps.

The existing detection mode mostly adopts a mode of manually aligning and placing an automobile end cover to be detected on detection equipment, and the manual operation needs repeated correction, so that the working efficiency is low, and the error of a detection result is relatively large. In addition, the existing detection device has the defects of complex structure, difficult maintenance, high cost and the like. Therefore, in actual production, the special leakage testing equipment for the automobile end cover meeting the high-standard automation is a problem to be solved urgently.

For example, an automatic test equipment for detecting leakage of valve parts is disclosed in Chinese patent literature, the publication number CN205909986U of the automatic test equipment comprises an upper template, a side charging port, a side sealing plug, a tool pressing cylinder I, a tool pressing cylinder II, a lower charging port, a base plate, a lower template, a rubber pad, a locating pin, a reinforcing rib, a marking thimble, a supporting column, an upper sealing plug, a controller, a display, a balance valve, an air source, a manual unlocking switch, an alarm, an air inlet pipe I, an air inlet pipe II and a fixed baffle. This patent has reached the automation in leak test field, but because the specializedly is too high, is not applicable to car end cover, and car end cover has multiple model, and the equipment cost of specializedly is too high.

Disclosure of Invention

The utility model mainly solves the problems of low automation degree of the leakage test of the automobile end cover and high casting cost of special equipment and inconvenient maintenance in the prior art; an automotive plastic end cap leak test apparatus is provided.

The technical problems of the utility model are mainly solved by the following technical proposal:

the leakage testing device comprises a plugging structure and a detection structure, wherein the leakage testing device comprises the plugging structure and the pressurization detection structure, the plugging structure comprises a plugging block and a second cylinder, one end of the plugging block is connected with an air cavity, the other end of the air cavity is connected with the pressurization detection structure for increasing the air pressure in the air cavity, and the air cavity is fixed on a push rod of the second cylinder. The air cavity and the plugging block are respectively designed, so that the plugging block can be properly replaced, the leakage detection is carried out on the end covers with similar sizes and different structures, the equipment cost is reduced, and the casting difficulty is reduced.

Preferably, the pressurization detection structure comprises an air duct and a first air cylinder, one end of the air duct is connected with an inflating device, the air duct is fixedly connected to a push rod of the first air cylinder, one end of the air duct is connected with an air cavity when pressurization test is carried out, and the air duct is separated from the air cavity when the end cover to be detected is replaced. The extension and the shrinkage of the air cylinder push rod are utilized to accurately connect the air duct with the air cavity, so that the air tightness between the air cavity and the air duct is effectively ensured.

Preferably, the air cavity is provided with two openings, one of the openings of the air cavity is inserted into and fixed with a plugging block, and a pressure sensing device is arranged in the air cavity and used for testing the air pressure change in the air cavity. The pressure sensor is arranged in the air cavity, so that the durability of the pressure sensor is guaranteed, and errors caused by friction and other problems caused by the arrangement of the pressure sensor on the plugging block and abrasion to the pressure sensor are effectively prevented.

Preferably, one side of the plugging block, which is in contact with the end cover to be tested, is hollowed out, the shape and the size of the hollowed-out part of the plugging block are matched with those of the end cover to be tested, and an opening with the shape and the size matched with those of the air cavity is formed in the connecting side of the plugging block and the air cavity. The design of the plugging block meets the sealing of the end cover to be tested, the effectiveness of plugging is ensured, the volume of the air cavity is ensured, and the air pressure can be accurately measured.

Preferably, the detection structure further comprises a sliding rail and a sliding block, the sliding rail is arranged on the vertical plane of the first cylinder, the sliding rail is connected with the sliding block in a clamping mode, and the other side of the sliding block is connected with the plugging structure. The sliding block and the sliding rail are arranged to facilitate the cooperation of the first cylinder and the second cylinder during working.

Preferably, a sealing ring is arranged at the joint of the plugging block and the air cavity, a sealing ring is arranged at the joint of the air cavity and the air duct, and a sealing ring is arranged at the plugging port of the plugging block. The arrangement of the sealing rings at all parts ensures the tightness of the utility model and the accuracy of the test result.

Preferably, the end cover placing device comprises a third cylinder and a placing block, wherein the placing block is inserted and fixed on a push rod of the third cylinder, and the size and shape of the placing block are adapted to the end cover to be tested. The design of placing the piece has guaranteed the high-efficient accurate placing of end cover that awaits measuring, does not need the manual work to relapse a lot of change position, has improved the work efficiency of workstation effectively, has realized the automation of the end cover that awaits measuring and has placed.

Preferably, the three-station turntable is provided with three high-air-tightness bases, the three high-air-tightness bases are arranged in an equal radian mode, and the size and shape of the high-air-tightness bases are matched with those of the end cover placing equipment. The accuracy of end cover test results is guaranteed through the arrangement of the high-tightness base, the working efficiency of the end cover test device is effectively guaranteed through the equal-radian arrangement of the high-tightness base, and the design difficulty of other parts is reduced.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the degree of automation of the automobile end cover leakage testing device is effectively improved through the design of the three-station turntable, the plugging structure driven by the air cylinder and the testing structure.

2. According to the utility model, through the arrangement of the independent air cavities, the end covers with different types can be tested by replacing the plugging structure, so that the casting cost of special equipment is reduced, and the special equipment is convenient to detach and maintain.

Drawings

FIG. 1 is a block diagram of a three-position turntable according to the present utility model.

FIG. 2 is a block diagram of an end cap leak test apparatus of the present utility model.

In the figure, three-station turntables, motors, 3, leakage testing equipment, 4, pneumatic marking machines, 5, end cover placement equipment, 6, third cylinders, 7, placement blocks, 3.1, bases, 3.2, first cylinders, 3.3, air ducts, 3.4, second cylinders, 3.5, air cavities, 3.6, plugging blocks, 3.7, sliding blocks and 3.8.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples:

the embodiment of the equipment for testing the leakage of the end cover of the automobile plastic part comprises a three-station turntable 1, a motor 2, leakage testing equipment 3, a pneumatic marking machine 4, end cover placing equipment 5, a third cylinder 6 and a placing block 7, as shown in fig. 1.

The three-station turntable 1 is arranged at the center of the workbench, a rotating shaft is arranged at the center of the three-station turntable 1, and the bottom of the rotating shaft is connected with the motor 2. The edge of the three-station turntable 1 is provided with three high-air-tightness bases which are arranged along the equal radian of the edge of the three-station turntable 1, and the high-air-tightness bases are cylindrical rubber columns. The motor 2 rotates one third of a turn each time, and the rotation rate is related to the test speed of the leak test apparatus 3.

The leak test device 3, the pneumatic marking machine 4, and the end cap placement device 5 are respectively installed and fixed at positions corresponding to the three high-air-tightness bases, and in this embodiment, the end cap placement device 5 corresponds to the outermost high-air-tightness base. The end cover placing device 5 is provided with a third air cylinder 6, the third air cylinder 6 is provided with 2 push rods, the top ends of the two push rods of the third air cylinder 6 are provided with clamping structures, and the clamping structures are connected with the placing blocks 7. The placing block 7 is a cuboid block with a hollowed-out structure towards the center of the circle of the three-station turntable 1, and the shape and the size of the hollowed-out structure are adaptive to those of the end cover to be tested.

As shown in figure 2, the device comprises a base 3.1, a first air cylinder 3.2, an air duct 3.3, a second air cylinder 3.4, an air cavity 3.5, a plugging block 3.6, a sliding block 3.7 and a sliding rail 3.8. The base 3.1 is fixed on the right side of the workbench, and the horizontal fixing position is aligned with the high-air-tightness base on the right side. The first air cylinder 3.2 is arranged at the top of the base 3.1, the air duct 3.3 is fixed on a push rod of the first air cylinder 3.2, one end of the air duct is connected with an air charging device, the other end of the air duct is provided with a sealing ring, the port penetrates through a cylindrical hollow part of the sliding block 3.7, and the port is connected with an upper port of the air cavity 3.5 during testing.

The upper port of the air cavity 3.5 is used for connecting an air duct, the lower port is clamped with the plugging block 3.6, an inner sealing ring and an outer sealing ring are arranged at the clamping part, and a sealing ring is arranged at the bottom of the plugging block.

The implementation process of the utility model comprises the following steps:

the first step, the end cover to be tested is manually placed on a placing block of the end cover placing device, the bottom of the end cover is placed upwards, a third cylinder push rod is pushed out, the end cover to be tested is placed on a high-air-tightness base, after the last end cover to be tested is tested, a motor drives a three-station rotary table to rotate for one third of a circle, the end cover to be tested is sent to a leakage testing device, and a leakage test is waited to be carried out.

And the second step, pushing out the push rod of the second cylinder, pressing the plugging block to the position of the end cover to be tested, sealing the end cover to be tested, pushing out the push rod of the first cylinder after sealing, pushing the air duct to a designated position along the opening in the middle of the sliding block, and connecting the port of the air duct with the upper port of the air cavity at the moment, and sealing through a sealing ring.

After sealing, the air charging device charges a certain amount of air into the air cavity along the air duct, and the pressure sensor in the air cavity transmits pressure change data to the control panel in real time, if the preset pressure data is met within a certain time, the air charging device judges that the air charging device is qualified, and if the preset pressure data is not met, the air charging device judges that the air charging device is unqualified.

And thirdly, retracting the first cylinder push rod, retracting the second cylinder push rod, driving the three-station turntable to rotate for one third of a circle by a motor, conveying the end cover to be tested to a pneumatic marking machine, and marking whether the end cover is qualified or not and numbering by the pneumatic marking machine according to the judgment result just given.

Fourth, repeating the first to third steps.

It should be understood that the examples are only for illustrating the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. The utility model provides an automobile plastic part end cover leak test equipment, includes leak test equipment, its characterized in that, leak test equipment includes plugging structure and pressurization detection structure, the plugging structure includes plugging block and second cylinder, and plugging block one end is connected with the air cavity, and the pressurization detection structure that is used for increasing the inside atmospheric pressure of air cavity is connected to the air cavity other end, and the air cavity is fixed on the push rod of second cylinder.

2. The device for testing the leakage of the end cover of the automobile plastic part according to claim 1, wherein the pressurizing detection structure comprises an air duct and a first air cylinder, one end of the air duct is connected with an air charging device, the air duct is fixedly connected to a push rod of the first air cylinder, one end of the air duct is connected with an air cavity when the pressurizing test is carried out, and the air duct is separated from the air cavity when the end cover to be tested is replaced.

3. The device for testing the leakage of the end cover of the automobile plastic part according to claim 2, wherein the air cavity is provided with two openings, one opening of the air cavity is inserted into and fixed with a plugging block, and a pressure sensing device is arranged in the air cavity and used for testing the air pressure change in the air cavity.

4. A device for testing leakage of an end cover of an automotive plastic part according to any of claims 2 or 3, wherein one side of the plugging block, which is in contact with the end cover to be tested, is hollowed out, the hollowed-out part of the plugging block is adapted to the end cover to be tested, and the connecting side of the plugging block and the air cavity is provided with an opening with a shape and a size adapted to the air cavity.

5. The device for testing the leakage of the end cover of the automobile plastic part according to any of claims 2 or 3, wherein the detection structure further comprises a sliding rail and a sliding block, the sliding rail is arranged on the vertical plane of the first cylinder, the sliding rail is clamped with the sliding block, and the other side of the sliding block is connected with the plugging structure.

6. A device for testing the leakage of the end cover of the automobile plastic part according to claim 2 or 3, wherein a sealing ring is arranged at the joint of the sealing block and the air cavity, a sealing ring is arranged at the joint of the air cavity and the air duct, and a sealing ring is arranged at the sealing opening of the sealing block.

7. The automobile plastic part end cover leakage test device according to claim 1, further comprising an end cover placement device, wherein the end cover placement device comprises a third cylinder and a placement block, the placement block is inserted and fixed on a push rod of the third cylinder, and the size and shape of the placement block are adapted to the end cover to be tested.

8. The automobile plastic part end cover leakage test equipment according to claim 7, further comprising a three-station rotary table, wherein the three-station rotary table is provided with three high-air-tightness bases, the three high-air-tightness bases are arranged in an equal radian mode, and the size and shape of the high-air-tightness bases are matched with those of the end cover placing equipment.