Air tightness detection equipment for automobile part processing detection

Abstract

The utility model discloses air tightness detection equipment for automobile part processing detection. A sample test bench comprises a telescopic plugging part, an air guide part and a sample bench which is detachably mounted on the upper surface of a lower base; according to the air tightness detection equipment used for automobile part processing detection, different sample test benches are selected to be installed on the base, the pressing plate extends downwards to form a plurality of fixing rods, and when the pressing plate is pressed downwards, the fixing rods fix automobile parts; accurate angle alignment is realized through the telescopic plugging part and the gas guide part on the pressing plate, and accurate plugging and butt joint of a test gas circuit are realized; the second linear driver stretches out to close the to-be-plugged opening and releases the to-be-plugged opening after contraction, the guide pipe is in butt joint with the testing opening after the third linear driver stretches out, and the guide pipe and the testing opening are released after the third linear driver stretches out and contracts; the telescopic plugging part and the air guide part finish driving, the to-be-plugged opening is plugged, the test opening is connected to a detection air path, and a test program can be executed.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing devices, and in particular to an airtightness testing device for automotive parts processing testing. Background Technology

[0002] Air tightness testing is an important part of the automotive powertrain field. It is used to test for leaks in the engine or transmission's water passages, oil passages, and internal cavities.

[0003] The testing process includes fixation, sealing, and testing. For example, first, after the gearbox is placed, it is securely fixed using a clamping structure; then, a telescopic sealing head is used to seal the openings on the gearbox; finally, the test tubing is connected to the test port on the gearbox. A sealing test is performed by inflating or deflating the test tubing.

[0004] A single testing device can only be used to test one type of product part. If the product part changes or a new product is added, it will not be able to meet the requirements of co-production. The testing process uses both hardware and software systems for the test gas path. Therefore, after changes in product parts, the debugging process for the sealing and gas guiding test structure is more complex and prone to abnormalities. Utility Model Content

[0005] The main purpose of this utility model is to provide an airtightness testing device for the processing and inspection of automotive parts. It aims to solve the problem that the testing device can only be used to test one type of product part, and that the debugging process of the sealing and air guiding test structure is complicated and prone to abnormalities when the product part changes.

[0006] To achieve the above objectives, this utility model provides an airtightness testing device for the processing and inspection of automotive parts, wherein the automotive parts are provided with a sealing port and a test port, including:

[0007] The base includes a lower base and an upper base supported on the lower base;

[0008] The first linear drive is disposed on the upper base with its output end facing downwards;

[0009] The sample testing platform comprises a telescopic sealing part, a gas guiding part and a sample platform detachably mounted on the upper surface of the lower base, the sample platform is provided with a sample groove and supports a plurality of guide rods, a helical spring is sleeved on the guide rod, a plurality of guide rods are provided with a pressing plate pressed downward by the first linear drive, the pressing plate extends downwardly with a plurality of fixing rods, the telescopic sealing part comprises a sealing seat and a second linear drive corresponding to the to-be-sealed port, the sealing seat is mounted on the pressing plate and extends downwardly, the second linear drive is mounted on the sealing seat, the gas guiding part comprises a gas guiding seat, a third linear drive and a gas pipe corresponding to the testing port, the gas guiding seat is mounted on the pressing plate and extends downwardly, the third linear drive is mounted on the gas guiding seat and drives the gas pipe.

[0010] The detection gas circuit is detachably connected to the gas pipe.

[0011] Further, the telescopic sealing part and the gas guiding part are adjustable in the fixed position on the pressing plate.

[0012] Further, the second linear drive is hinged to the sealing seat and adjustable in the fixed angle, and the third linear drive is hinged to the gas guiding seat and adjustable in the fixed angle.

[0013] Further, the output end of the first linear drive is pinned to the pressing plate.

[0014] Further, the inner wall of the sample groove is provided with a plurality of negative pressure ports.

[0015] Further, the base is provided with a plurality of sample testing platforms.

[0016] Further, the lower base is provided with a mounting groove, the sample platform is supported and circumferentially clamped in the mounting groove.

[0017] Further, the working mode of the second linear drive is a pneumatic push rod type, and the air tightness detection equipment further comprises a compressed gas circuit, the compressed gas circuit is detachably connected to the second linear drive.

[0018] Further, the working mode of the first linear drive is a pneumatic push rod type, and the first linear drive is connected to the compressed gas circuit.

[0019] Further, the pressing plate is rectangular, the number of the fixing rods is four and the fixing rods are arranged at the four corners of the pressing plate.

[0020] The air tightness detection equipment for automobile part machining detection provided by the utility model, according to different automobile parts, different sample test benches are selected and installed on the base, the fixed rods are extended downwards from the pressing plate, when the pressing plate is pressed downwards, the fixed rods fix the automobile parts; the telescopic sealing part and the air guide part on the pressing plate realize accurate angle alignment, realize accurate sealing and butt joint of the test gas path; the second linear drive extends to seal the to-be-sealed port, retracts to release the to-be-sealed port, the third linear drive extends to butt joint the conduit and the test port, the third linear drive retracts to release between the conduit and the test port; the telescopic sealing part and the air guide part complete driving, the to-be-sealed port is sealed, the test port is connected to the detection gas path, and the test program can be executed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Fig. 1 is a schematic view of the automobile part in the first embodiment of the utility model;

[0022] Figure 2 Fig. 2 is a use schematic view (the state of the pressing plate on the top) of the air tightness detection equipment for automobile part machining detection in the first embodiment of the utility model;

[0023] Figure 3 Fig. 3 is a use schematic view (the state of the pressing plate on the bottom) of the air tightness detection equipment for automobile part machining detection in the first embodiment of the utility model;

[0024] Figure 4 Fig. 4 is a schematic view of the sample test bench in the air tightness detection equipment for automobile part machining detection in the first embodiment of the utility model.

[0025] Figure 5 Fig. 5 is a schematic view of the pressing plate in the air tightness detection equipment for automobile part machining detection in the first embodiment of the utility model.

[0026] The utility model realizes the purpose, functional characteristics and advantages, which will be further explained by combining with the embodiments and referring to the drawings. DETAILED DESCRIPTION

[0027] It should be understood that the specific embodiments described herein are merely intended to explain the utility model, and are not used to limit the utility model.

[0028] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It is further understood that the terms "comprise" (and any grammatical variations thereof, such as "comprises" and "comprising"), when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, and / or groups, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It is further understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. In addition, the word "coupling" or "coupled" as used herein includes the appending of documents, text, tables, or the like in their entirety. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0029] It is to be understood that the terms so used are intended to encompass the general meaning of such terms as well as the meaning specifically defined herein, unless otherwise expressly defined herein. It is further to be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the specification and relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0030] Referring to Figures 1 to 5 In one embodiment of the present application, a kind of air tightness detection equipment for automobile parts processing detection, the automobile parts 010 is provided with to be closed mouth 011 And test mouth 012, it include:

[0031] Base 100, including lower base 110 And support in the lower base 110 Upper base 120;

[0032] First linear drive 200, be set up in the upper base 120 And output end is set towards downwards;

[0033] The sample testing table 300 comprises a telescopic plugging part, a gas guiding part and a sample table 330 detachably mounted on the upper surface of the lower base 110, the sample table 330 is provided with a sample groove 331 and supports a plurality of guide rods 332, the guide rods 332 are sleeved with helical springs 333, a plurality of guide rods 332 are slidably provided with a pressing plate 340 pressed by the first linear drive 200, the pressing plate 340 extends downwardly with a plurality of fixing rods 341, the telescopic plugging part comprises a plugging seat 311 and a second linear drive 312 corresponding to the to-be-plugged opening 011, the plugging seat 311 is mounted on the pressing plate 340 and extends downwardly, the second linear drive 312 is mounted on the plugging seat 311, the gas guiding part comprises a gas guiding seat 321, a third linear drive 322 and a gas pipe 323 corresponding to the testing opening 012, the gas guiding seat 321 is mounted on the pressing plate 340 and extends downwardly, the third linear drive 322 is mounted on the gas guiding seat 321 and drives the gas pipe 323.

[0034] The detection gas circuit 400 is detachably connected to the gas pipe 323.

[0035] In the prior art, the test process uses a test gas circuit hardware system and a software system, so that after the product parts are changed, the debugging process of the plugging and gas guiding test structure is relatively complex and abnormality is prone to occur.

[0036] The air tightness detection equipment for automobile part machining detection provided by the utility model comprises a base 100, a first linear drive 200, a sample testing table 300 and a detection gas circuit 400.

[0037] The base 100 comprises a lower base 110 and an upper base 120 supported on the lower base 110, and the base 100 serves as the structural basis of the air tightness detection equipment.

[0038] The first linear drive 200 is arranged on the upper base 120 and the output end is arranged downward. The first linear drive 200 is used to perform the pressing force. The sample test table 300 comprises a telescopic blocking part, a gas guiding part and a sample table 330 which is detachably mounted on the upper surface of the lower base 110. The sample table 330 is provided with a sample groove 331 for accommodating the automobile part 010. The sample table 330 is provided with a plurality of guide rods 332 which are arranged in a supporting manner and are provided with a helical spring 333. The pressing plate 340 is arranged in a sliding manner on the guide rods 332 and is pressed by the first linear drive 200. The helical spring 333 supports the pressing plate 340. The pressing plate 340 is provided with a plurality of fixing rods 341 which extend downward. When the pressing plate 340 is pressed, the fixing rods 341 fix the automobile part 010. The telescopic blocking part comprises a blocking seat 311 and a second linear drive 312 which is arranged corresponding to the to-be-blocked port 011. The blocking seat 311 is mounted on the pressing plate 340 and extends downward. The second linear drive 312 is mounted on the blocking seat 311. When the second linear drive 312 extends, the to-be-blocked port 011 is blocked. When the second linear drive 312 retracts, the to-be-blocked port 011 is released. The gas guiding part comprises a gas guiding seat 321, a third linear drive 322 and a gas pipe 323 which is arranged corresponding to the test port 012. The gas guiding seat 321 is mounted on the pressing plate 340 and extends downward. The third linear drive 322 is mounted on the gas guiding seat 321 and drives the gas pipe 323. When the third linear drive 322 extends, the gas pipe 323 is connected to the test port 012. When the third linear drive 322 retracts, the gas pipe 323 is released from the test port 012. The power of the first linear drive 200, the second linear drive 312 and the third linear drive 322 can be pneumatic drive, hydraulic drive, motor drive and the like. In most workshops, a compressed air circuit is arranged. Therefore, it is convenient to drive in a pneumatic manner. The number of telescopic blocking parts is selected according to the actual situation. Since the to-be-blocked port 011 and the test port 012 on the automobile part 010 are generally not vertically arranged, the telescopic blocking part and the gas guiding part are used to realize accurate angle alignment.

[0039] The detection gas circuit 400 is detachably connected to the gas pipe 323. Therefore, the air pressure of the detection gas circuit 400 can act on the test port 012.

[0040] In use, different sample test tables 300 are selected and mounted on the base 100 according to different automobile parts 010. The telescopic blocking part and the gas guiding part are arranged in position. For example, the second linear drive 312 and the third linear drive 322 are driven in a pneumatic manner. Therefore, the compressed air circuit is connected. If the second linear drive 312 and the third linear drive 322 are motor driven, the power supply is connected. During the test, the first linear drive 200 extends, the pressing plate 340 is pressed, the automobile part 010 is fixed, the telescopic blocking part and the gas guiding part are driven, the to-be-blocked port 011 is blocked, the test port 012 is connected to the detection gas circuit 400, and the test program can be executed.

[0041] In summary, according to different automobile parts 010, different sample test benches 300 are selected and installed on the base 100, the pressing plate 340 extends downward with a plurality of fixing rods 341, when the pressing plate 340 is pressed downward, the fixing rods 341 fix the automobile parts 010; the accurate angle alignment is realized through the telescopic sealing part and the air guide part on the pressing plate 340, the accurate sealing and the butt joint of the test gas path are realized; the second linear drive 312 extends to close the to-be-sealed port 011, and retracts to release the to-be-sealed port 011, the third linear drive 322 extends to butt joint the test port 012 with the guide pipe 323, and retracts to release the test port 012 from the guide pipe 323; the telescopic sealing part and the air guide part are driven, the to-be-sealed port 011 is sealed, the test port 012 is connected to the detection gas path 400, and the test program can be executed.

[0042] In one embodiment, the telescopic sealing part and the air guide part are fixed and the position is adjustable on the pressing plate 340.

[0043] In this embodiment, when the part model to be tested changes, the telescopic sealing part and the air guide part are adjusted to adapt. It should be noted that when the part model changes, the entire sample test bench 300 is replaced, and the position of the telescopic sealing part and the air guide part on the sample test bench 300 is adjusted before replacement.

[0044] In one embodiment, the second linear drive 312 is hinged to the sealing seat 311 and the fixed angle is adjustable, and the third linear drive 322 is hinged to the air guide seat 321 and the fixed angle is adjustable.

[0045] In this embodiment, by adjusting the fixed angle of the second linear drive 312, the sealing effect of the second linear drive 312 on the sealing port is improved. By adjusting the fixed angle of the third linear drive 322, the angle accuracy of the third linear drive 322 for inserting the guide pipe 323 is improved.

[0046] In one embodiment, the output end pin of the first linear drive 200 is connected to the pressing plate 340.

[0047] In this embodiment, although the pressing plate 340 only needs to be pressed downward by the first linear drive 200 during use, the upward movement of the pressing plate 340 is realized by the spiral spring 333, but in order to improve the upward amplitude of the pressing plate 340, the first linear drive 200 is connected to the pressing plate 340. At this time, the spiral spring 333 plays a supporting role during the installation of the pressing plate 340, and no longer provides the reset power for the upward movement of the pressing plate 340.

[0048] In one embodiment, a plurality of negative pressure ports are arranged on the inner wall of the sample groove 331.

[0049] In the embodiment, the setting of the negative pressure port improves the installation efficiency of the automobile parts 010 in the sample tank 331, and also improves the position accuracy. The negative pressure port is connected to an external negative pressure air path.

[0050] In an embodiment, the base 100 is provided with a plurality of sample test tables 300.

[0051] In the embodiment, the base 100 is provided with a plurality of sample test tables 300, which provides a basis for improving the use efficiency.

[0052] In an embodiment, the lower base 110 is provided with a mounting groove, and the sample table 330 is supported and circumferentially clamped in the mounting groove.

[0053] In the embodiment, the fixing mode of the sample table 330 is provided, which has the advantage of convenient operation. The lower base 110 is mounted on the mounting groove and is circumferentially limited, so that the sample test table 300 can be fixed.

[0054] In an embodiment, the working mode of the second linear drive 312 is a pneumatic push rod type, and the air tightness detection device further comprises a compressed air path, which is detachably connected to the second linear drive 312.

[0055] In the embodiment, the driving mode of the second linear drive 312 is pneumatic, which includes a pneumatic push rod core component. The air tightness detection device is provided with a compressed air path, and the driving of the second linear drive 312 is completed through the compressed air path. The driving is realized in a pneumatic manner, which has the advantages of simplicity, reliability and easy realization.

[0056] In an embodiment, the working mode of the first linear drive 200 is a pneumatic push rod type, and the first linear drive 200 is connected to the compressed air path.

[0057] In the embodiment, the working mode of the first linear drive 200 is also set to pneumatic, so that the work of the first linear drive 200 is also systematized and simplified. It should be noted that the speed or timing of the extension and retraction of the telescopic sealing part needs to be coordinated with the first linear drive 200, so as to meet different working needs.

[0058] Reference Figure 2 In an embodiment, the pressing plate 340 is rectangular, and the number of the fixing rods 341 is four and is arranged at the four corners of the pressing plate 340.

[0059] In the embodiment, the shape of the pressing plate 340 and the arrangement mode of the fixing rod 341 are limited, and stable work is realized under the premise of simple structure.

[0060] In summary, the air tightness detection equipment for automobile part machining detection provided by the utility model realizes accurate angle alignment through the telescopic sealing part and the air guide part on the pressing plate 340, realizes precise sealing and butt joint of the test gas path, the second linear drive 312 is stretched out to close the to-be-sealed port 011, is retracted to release the to-be-sealed port 011, the third linear drive 322 is stretched out to butt joint the test port 012 and the catheter 323, the third linear drive 322 is retracted to release the test port 012 and the catheter 323, the telescopic sealing part and the air guide part complete driving, the to-be-sealed port 011 is sealed, the test port 012 is connected to the detection gas path 400, and a test program can be executed.

[0061] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent flow transformation using the utility model specification and the attached drawing contents, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. An airtightness testing device for processing and inspecting automotive parts, wherein the automotive part (010) is provided with a sealing port (011) and a test port (012), characterized in that, include: The base (100) includes a lower base (110) and an upper base (120) supported on the lower base (110). The first linear drive (200) is disposed on the upper base (120) with its output end facing downward; The sample testing stage (300) includes a telescopic sealing part, a gas guiding part, and a sample stage (330) detachably mounted on the upper surface of the lower base (110). The sample stage (330) has a sample slot (331) and is supported by multiple guide rods (332). A helical spring (333) is sleeved on each guide rod (332). A pressure plate (340) is slidably mounted on each guide rod (332) for being pressed down by the first linear drive (200). Multiple fixing rods (341) extend downward from the pressure plate (340). The telescopic sealing part includes a plug seat (311) and... The second linear drive (312) is provided corresponding to the port to be sealed (011). The plug seat (311) is installed on the pressure plate (340) and extends downward. The second linear drive (312) is installed on the plug seat (311). The air guide part includes an air guide seat (321), a third linear drive (322) and a conduit (323) corresponding to the test port (012). The air guide seat (321) is installed on the pressure plate (340) and extends downward. The third linear drive (322) is installed on the air guide seat (321) and drives the conduit (323). The detection gas path (400) is detachably connected to the conduit (323).

2. The airtightness testing equipment for automotive parts processing and inspection according to claim 1, characterized in that, The telescopic sealing part and the air guiding part are fixed in an adjustable position on the pressure plate (340).

3. The airtightness testing equipment for automotive parts processing and inspection according to claim 2, characterized in that, The second linear drive (312) is hinged to the plug (311) and has a fixed adjustable angle, and the third linear drive (322) is hinged to the air guide seat (321) and has a fixed adjustable angle.

4. The airtightness testing equipment for automotive parts processing and inspection according to claim 1, characterized in that, The output end of the first linear drive (200) is pinned to the pressure plate (340).

5. The airtightness testing equipment for automotive parts processing inspection according to any one of claims 1 to 4, characterized in that, The inner wall of the sample tank (331) is provided with multiple negative pressure ports.

6. The airtightness testing equipment for automotive parts processing inspection according to any one of claims 1 to 4, characterized in that, The base (100) is provided with a plurality of sample testing stations (300).

7. The airtightness testing equipment for automotive parts processing inspection according to any one of claims 1 to 4, characterized in that, The lower base (110) is provided with an installation groove, and the sample stage (330) is supported and secured in the installation groove in the circumferential direction.

8. The airtightness testing equipment for automotive parts processing inspection according to any one of claims 1 to 4, characterized in that, The second linear drive (312) operates as a pneumatic push rod. The airtightness testing device also includes a compressed air circuit, which is detachably connected to the second linear drive (312).

9. The airtightness testing equipment for automotive parts processing and inspection according to claim 8, characterized in that, The first linear drive (200) operates as a pneumatic push rod and is connected to the compressed air circuit.

10. The airtightness testing equipment for automotive parts processing inspection according to any one of claims 1 to 4, characterized in that, The pressure plate (340) is rectangular, and the number of fixing rods (341) is four and they are set at the four corners of the pressure plate (340).

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