An air tightness detection device for an automobile intake pipe

Abstract

This utility model relates to an airtightness testing device for an automotive intake pipe, comprising a base plate, an electric XY-axis displacement platform embedded in the base plate, and an air inlet fixed on the moving end of the electric XY-axis displacement platform; it also includes a positioning assembly located on the top of the base plate, the positioning assembly comprising two positioning units symmetrically arranged on the front and rear sides of the electric XY-axis displacement platform, and a clamping unit that cooperates with both positioning units. The positioning unit comprises at least two positioning combinations arranged sequentially from left to right, and the positioning combination comprises a positioning seat fixed on the base plate and a positioning block fixed on the positioning seat. This utility model can automatically seal all interfaces on the automotive intake pipe except for the interface connected to the air inlet, thereby greatly simplifying the operation and improving work efficiency, thus saving a lot of time and reducing labor costs.

Description

Technical Field

[0001] This utility model relates to an airtightness testing device for an automobile intake pipe. Background Technology

[0002] The main purpose of a car's intake manifold is to provide clean air or a combustible mixture to the engine. Through optimized design, it ensures that each cylinder receives air evenly, thereby improving engine operating efficiency and power output. After all the processing and assembly steps are completed, the intake manifold must undergo an airtightness test to ensure its sealing and reliability for safe driving. If any leaks are found, they can be detected in time to prevent them from flowing out.

[0003] When conducting airtightness tests on existing automotive air intake pipes, all the interfaces on the pipe must be manually sealed sequentially, leaving only one interface for air intake and testing. However, this process is cumbersome, inefficient, and time-consuming. To speed up the process, more manpower must be added, resulting in higher labor costs. Further improvements are needed. Utility Model Content

[0004] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide an airtightness testing device for automobile intake pipes that greatly simplifies operation and improves work efficiency, thereby saving more time and reducing labor costs.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: an airtightness testing device for an automobile intake pipe, comprising a base plate, an electric XY-axis displacement platform embedded in the base plate, and an air intake nozzle fixed on the moving end of the electric XY-axis displacement platform, characterized in that:

[0006] It also includes a positioning assembly located on the top of the seat plate. The positioning assembly includes two positioning units symmetrically located on the front and rear sides of the electric XY axis displacement platform, and a clamping unit that cooperates with both positioning units.

[0007] The positioning unit includes at least two positioning combinations arranged sequentially from left to right. The positioning combination includes a positioning seat fixed to the base plate and a positioning block fixed to the positioning seat. Each positioning block has an arc-shaped notch formed on the side edge of its top facing the air inlet.

[0008] The clamping unit includes a back frame fixed on the seat plate, a first clamping cylinder longitudinally fixed on the back frame, a traction beam fixed on the swing end of the first clamping cylinder, and a clamping beam rotatably connected to the traction beam and located above the electric XY axis displacement platform.

[0009] It also includes a first main pipe sealing assembly and a second main pipe sealing assembly respectively located on the left and right sides of the electric XY axis displacement platform. The first main pipe sealing assembly includes a first support fixed to the top of the seat plate, a first sealing cylinder fixed to the first support, and a first pressure plug fixed to the telescopic end of the first sealing cylinder. The telescopic end of the first sealing cylinder is arranged facing the lower right.

[0010] The second main sealing assembly includes a second support fixed to the top of the seat plate, a second sealing cylinder fixed to the second support, and a second pressure plug fixed to the telescopic end of the second sealing cylinder, wherein the telescopic end of the second sealing cylinder is arranged to face rearward.

[0011] Preferably, it further includes a first branch pipe sealing assembly located behind the second main pipe sealing assembly. The first branch pipe sealing assembly includes a third support fixed to the top of the seat plate, a third sealing cylinder fixed to the third support, and a third pressure plug fixed to the telescopic end of the third sealing cylinder. The telescopic end of the third sealing cylinder is arranged facing the left front.

[0012] Preferably, it further includes a second branch pipe sealing assembly disposed between the second main pipe sealing assembly and the first branch pipe sealing assembly. The second branch pipe sealing assembly includes a fourth support fixed to the top of the seat plate, a fourth sealing cylinder fixed to the fourth support, and a fourth pressure plug fixed to the telescopic end of the fourth sealing cylinder. The telescopic end of the fourth sealing cylinder is arranged facing the left front.

[0013] Preferably, it also includes a lateral sealing assembly located in front of the electric XY axis displacement platform. The lateral sealing assembly includes a fifth support fixed to the top of the seat plate, a fifth sealing cylinder fixed to the fifth support, and a fifth pressure plug fixed to the telescopic end of the fifth sealing cylinder. The telescopic end of the fifth sealing cylinder is arranged facing rearward and upward.

[0014] Preferably, the first main pipe closure assembly further includes a first support plate that is obliquely fixed to the top of the seat plate and located to the right of the first support frame. The first support plate is set with the right side higher than the left side, and a first positioning notch is provided on the right edge of the first support plate.

[0015] Preferably, the second main pipe closure assembly further includes a second support plate that is vertically fixed to the top of the seat plate and located behind the second support frame, and the upper side of the second support plate is provided with a second positioning notch.

[0016] Preferably, a third support plate is fixed to the top of the seat plate, which is vertically positioned to the right of the electric XY axis displacement platform, and a third positioning notch is provided on the upper side of the third support plate.

[0017] Preferably, a pressure block is fixed to the lower side of each end of the clamping beam.

[0018] Compared with the prior art, the advantages of this utility model are: this utility model can automatically seal all interfaces on the car's air intake pipe at one time except for the interface connected to the air intake nozzle, without the need for manual sequential sealing, thus greatly simplifying the operation and improving work efficiency, thereby saving a lot of time and reducing labor costs. Attached Figure Description

[0019] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings:

[0020] Figure 1 This is a structural diagram of the left front side of this utility model;

[0021] Figure 2 This is a structural diagram of the right rear side of this utility model. Detailed Implementation

[0022] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0024] like Figures 1-2 As shown, an air tightness testing device for an automobile air intake pipe includes a base plate 1, an electric XY axis displacement platform 2 embedded in the base plate 1, and an air intake nozzle 3 fixed on the moving end of the electric XY axis displacement platform 2.

[0025] It also includes a positioning assembly 4 located on the top of the seat plate 1. The positioning assembly 4 includes two positioning units symmetrically located on the front and rear sides of the electric XY axis displacement platform 2 and a clamping unit that cooperates with both positioning units. The positioning unit includes at least two positioning combinations arranged sequentially from left to right. The positioning combination includes a positioning seat 41 fixed on the seat plate 1 and a positioning block 42 fixed on the positioning seat 41. Each positioning block 42 has an arc-shaped notch 421 formed on the side edge of its top facing the air inlet 3.

[0026] The clamping unit includes a back frame 43 fixed on the seat plate 1, a first clamping cylinder 44 longitudinally fixed on the back frame 43, a traction beam 45 fixed on the swing end of the first clamping cylinder 44, and a clamping beam 46 rotatably connected to the traction beam 45 and located above the electric XY axis displacement platform 2.

[0027] An air tightness testing device for an automobile intake pipe further includes a first main pipe sealing assembly 5 and a second main pipe sealing assembly 6 respectively disposed on the left and right sides of an electric XY axis displacement platform 2. The first main pipe sealing assembly 5 includes a first support 51 fixed to the top of a seat plate 1, a first sealing cylinder 52 fixed to the first support 51, and a first pressure plug 53 fixed to the telescopic end of the first sealing cylinder 52. The telescopic end of the first sealing cylinder 52 is arranged facing downward to the right.

[0028] The second main sealing assembly 6 includes a second support 61 fixed to the top of the seat plate 1, a second sealing cylinder 62 fixed to the second support 61, and a second pressure plug 63 fixed to the telescopic end of the second sealing cylinder 62, with the telescopic end of the second sealing cylinder 62 facing rearward.

[0029] An air tightness testing device for an automobile intake pipe further includes a first branch pipe sealing assembly 7 located behind the second main pipe sealing assembly 6. The first branch pipe sealing assembly 7 includes a third support 71 fixed to the top of the seat plate 1, a third sealing cylinder 72 fixed to the third support 71, and a third pressure plug 73 fixed to the telescopic end of the third sealing cylinder 72. The telescopic end of the third sealing cylinder 72 is arranged facing the left front.

[0030] An air tightness testing device for an automotive intake pipe further includes a second branch pipe sealing assembly 8 disposed between a second main pipe sealing assembly 6 and a first branch pipe sealing assembly 7. The second branch pipe sealing assembly 8 includes a fourth support 81 fixed to the top of a seat plate 1, a fourth sealing cylinder 82 fixed to the fourth support 81, and a fourth pressure plug 83 fixed to the telescopic end of the fourth sealing cylinder 82. The telescopic end of the fourth sealing cylinder 82 is arranged facing the left front.

[0031] An air tightness testing device for an automotive intake pipe further includes a lateral sealing component 9 located in front of an electric XY axis displacement platform 2. The lateral sealing component 9 includes a fifth support 91 fixed to the top of a seat plate 1, a fifth sealing cylinder 92 fixed to the fifth support 91, and a fifth pressure plug 93 fixed to the telescopic end of the fifth sealing cylinder 92. The telescopic end of the fifth sealing cylinder 92 is arranged facing rearward and upward.

[0032] The first main pipe closure assembly 5 also includes a first support plate 54 that is tilted and fixed to the top of the seat plate 1 and located to the right of the first support frame 51. The first support plate 54 is set with the right side higher than the left side, and a first positioning notch 541 is opened on the right edge of the first support plate 54.

[0033] The second main pipe closure assembly 6 also includes a second support plate 64 that is vertically fixed to the top of the seat plate 1 and located behind the second support frame 61. A second positioning notch 641 is provided on the upper side of the second support plate 64.

[0034] The top of the seat plate 1 is also fixed with a third support plate 10 that is vertically located to the right of the electric XY axis displacement platform 2. The upper side of the third support plate 10 is provided with a third positioning notch 101.

[0035] The first main pipe sealing assembly 5, the second main pipe sealing assembly 6, the first branch pipe sealing assembly 7, the second branch pipe sealing assembly 8, and the lateral sealing assembly 9 each include a calibration module 11. The calibration module 11 includes a reference base 111 fixed on the first pressure plug 53, the second pressure plug 63, the third pressure plug 73, the fourth pressure plug 83, or the fifth pressure plug 93, and a position sensor 112 fixed on the top of the base plate 1. The sensing end of the position sensor 112 cooperates with the position of the reference base 111.

[0036] A pressure block 47 is also fixed to the lower side of both ends of the clamping beam 46.

[0037] Working principle:

[0038] The intake pipe is placed horizontally and its middle section is placed between two positioning units. Then, the arc-shaped notch 421 on the positioning block 42 in each positioning combination of each positioning unit is attached to the lower outer wall of the middle section of the intake pipe, thus completing the initial placement of the intake pipe. Before placement, the moving end of the electric XY axis displacement platform 2 needs to be manipulated according to the position of the air inlet in the middle section of the intake pipe to move the air inlet 3 directly below the air inlet. After the intake pipe is initially placed, the end opening of the air inlet 3 is sealed and inserted into the air inlet.

[0039] Next, the swing end of the first clamping cylinder 44 in the driving clamping unit swings downward to drive the clamping beam 46 to swing downward with the help of the traction beam 45, and then clamps the upper outer wall of the middle section of the intake pipe with the help of the two pressure blocks 47; thus completing the intake pipe clamping.

[0040] At this time, the left section of the intake pipe is inserted into the first positioning notch 541 on the first support plate 54, and the left end opening of the intake pipe extends to the left side of the first support plate 54. Then, the telescopic end of the first sealing cylinder 52 in the first main pipe sealing assembly 5 is driven to extend outward to drive the first pressure plug 53 to move in the direction of the intake pipe until the first pressure plug 53 is pressed against the left end opening of the intake pipe.

[0041] At the same time, the right end of the intake pipe is inserted into the third positioning notch 101 on the third support plate 10 and the second positioning notch 641 on the second support plate 64, and the right end opening of the intake pipe extends to the front of the second support plate 64; then the telescopic end of the second sealing cylinder 62 in the second main pipe sealing assembly 6 is driven to extend outward to drive the second pressure plug 63 to move in the direction of the intake pipe until the second pressure plug 63 is pressed against the right end opening of the intake pipe.

[0042] During this process, the telescopic ends of the third sealing cylinder 72 in the first branch pipe sealing assembly 7, the telescopic ends of the fourth sealing cylinder 82 in the second branch pipe sealing assembly 8, and the telescopic ends of the fifth sealing cylinder 92 in the side sealing assembly 9 are all driven to extend outwards to drive the third pressure plug 73, the fourth pressure plug 83, and the fifth pressure plug 93 to move towards the intake pipe, until the third pressure plug 73, the fourth pressure plug 83, and the fifth pressure plug 93 are pressed against the corresponding interfaces located on the right and middle sections of the intake pipe, thus completing the sealing of the intake pipe.

[0043] Finally, pressurized gas can be introduced into the intake pipe through the intake nozzle 3, and the pressure value change in the intake pipe can be monitored by the pressure sensor installed in the intake nozzle 3, so as to detect whether the airtightness is qualified (existing technology).

[0044] The calibration module 11 is used to control the movement limit positions of the first pressure plug 53, the second pressure plug 63, the third pressure plug 73, the fourth pressure plug 83 and the fifth pressure plug 93. When the reference base 111 fixed on the first pressure plug 53, the second pressure plug 63, the third pressure plug 73, the fourth pressure plug 83 and the fifth pressure plug 93 moves to the position directly opposite the sensing end of the position sensor 112, the first pressure plug 53, the second pressure plug 63, the third pressure plug 73, the fourth pressure plug 83 and the fifth pressure plug 93 will stop moving.

[0045] This invention can automatically seal all interfaces on the car's air intake pipe at once, except for the interface connected to the air intake nozzle 3, without the need for manual sequential sealing. This greatly simplifies the operation and improves work efficiency, thereby saving a lot of time and reducing labor costs.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An airtightness testing device for an automotive intake pipe, comprising a base plate, an electric XY-axis displacement platform embedded in the base plate, and an air intake nozzle fixed on the moving end of the electric XY-axis displacement platform, characterized in that: It also includes a positioning assembly located on the top of the seat plate. The positioning assembly includes two positioning units symmetrically located on the front and rear sides of the electric XY axis displacement platform, and a clamping unit that cooperates with both positioning units. The positioning unit includes at least two positioning combinations arranged sequentially from left to right. The positioning combination includes a positioning seat fixed to the base plate and a positioning block fixed to the positioning seat. Each positioning block has an arc-shaped notch formed on the side edge of its top facing the air inlet. The clamping unit includes a back frame fixed on the seat plate, a first clamping cylinder longitudinally fixed on the back frame, a traction beam fixed on the swing end of the first clamping cylinder, and a clamping beam rotatably connected to the traction beam and located above the electric XY axis displacement platform. It also includes a first main pipe sealing assembly and a second main pipe sealing assembly respectively located on the left and right sides of the electric XY axis displacement platform; The first main sealing assembly includes a first support fixed to the top of the seat plate, a first sealing cylinder fixed to the first support, and a first pressure plug fixed to the telescopic end of the first sealing cylinder, wherein the telescopic end of the first sealing cylinder is arranged facing the lower right. The second main sealing assembly includes a second support fixed to the top of the seat plate, a second sealing cylinder fixed to the second support, and a second pressure plug fixed to the telescopic end of the second sealing cylinder, wherein the telescopic end of the second sealing cylinder is arranged to face rearward.

2. The airtightness testing device for an automobile intake pipe according to claim 1, characterized in that, It also includes a first branch pipe sealing assembly located behind the second main pipe sealing assembly. The first branch pipe sealing assembly includes a third support fixed to the top of the seat plate, a third sealing cylinder fixed to the third support, and a third pressure plug fixed to the telescopic end of the third sealing cylinder. The telescopic end of the third sealing cylinder is arranged facing the left front.

3. The airtightness testing device for an automobile intake pipe according to claim 2, characterized in that, It also includes a second branch pipe sealing assembly located between the second main pipe sealing assembly and the first branch pipe sealing assembly. The second branch pipe sealing assembly includes a fourth support fixed to the top of the seat plate, a fourth sealing cylinder fixed to the fourth support, and a fourth pressure plug fixed to the telescopic end of the fourth sealing cylinder. The telescopic end of the fourth sealing cylinder is arranged facing the left front.

4. The airtightness testing device for an automobile intake pipe according to claim 1, characterized in that, It also includes a lateral sealing assembly located in front of the electric XY axis displacement platform. The lateral sealing assembly includes a fifth support fixed to the top of the seat plate, a fifth sealing cylinder fixed to the fifth support, and a fifth pressure plug fixed to the telescopic end of the fifth sealing cylinder. The telescopic end of the fifth sealing cylinder is arranged facing rearward and upward.

5. The airtightness testing device for an automobile intake pipe according to claim 1, characterized in that, The first main tube closure assembly also includes a first support plate that is tilted and fixed to the top of the seat plate and located to the right of the first support frame. The first support plate is set with the right side higher than the left side, and a first positioning notch is provided on the right edge of the first support plate.

6. The airtightness testing device for an automobile intake pipe according to claim 1, characterized in that, The second main pipe closure assembly also includes a second support plate that is vertically fixed to the top of the seat plate and located behind the second support frame, and a second positioning notch is provided on the upper side of the second support plate.

7. The airtightness testing device for an automobile intake pipe according to claim 1, characterized in that, The top of the seat plate is also fixed with a third support plate that is vertically located to the right of the electric XY axis displacement platform, and the upper side of the third support plate is provided with a third positioning notch.

8. The airtightness testing device for an automobile intake pipe according to claim 1, characterized in that, A pressure block is also fixed to the lower side of each end of the clamping beam.

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