CN216523529U - Automatic detect utensil of examining of vehicle vent-pipe - Google Patents

Abstract

The utility model discloses a checking fixture for automatically detecting an automobile exhaust pipe, which comprises: the checking fixture trolley comprises a working table surface; the tail pipe positioning module, the hole site detection module, the purifier detection module and the corrugated pipe detection module are arranged on the working table surface. According to the detection tool, after the exhaust pipe is pressed by the cylinder positioning device, the position degree and the profile degree of each structure of the exhaust pipe can be rapidly detected, and the air tightness can be automatically detected.

Description

Automatic detect utensil of examining of vehicle vent-pipe

Technical Field

The utility model relates to the field of automobile detection, in particular to a detection tool for automatically detecting an automobile exhaust pipe.

Background

The exhaust pipe is an important part on an automobile, and can reduce the noise of an engine and the pollutants discharged. Before the exhaust pipe is assembled with a vehicle body, whether relevant sizes are out of tolerance or not needs to be detected, and the problems that the exhaust pipe is installed on the vehicle body and matched parts interfere with each other, the exhaust pipe is difficult to install and the like are avoided. Due to the complex structure, the large volume and the irregular shape, the size of the exhaust pipe cannot be detected by using a conventional measuring tool. If the three-coordinate measuring machine is used for measuring the three-coordinate measuring machine, the time is long, the working efficiency is low, and the quality can not be controlled in batches.

When the original exhaust pipe inspection tool is used for inspection, a product is required to be placed into the inspection tool corresponding to a reference and manually compress the positioning mechanism, the flange plate and the lifting hook assembly size of the exhaust pipe and the welding position of the tail pipe are respectively detected, and then the detection pin, the U-shaped block, the leveling ruler and other mechanisms are used for detecting the position degree and the profile degree of each pipeline structure, so that the inspection time is long, the steps are complicated, and some steps may be left when workers use the exhaust pipe inspection tool in the part production process.

Taking the handheld flat ruler detection in the prior art shown in fig. 1 as an example, since the exhaust pipe pipeline of the automobile to be detected comprises a corrugated pipe, a purifier, a differential pressure pipe and other structures, in order to ensure that the pipeline moves correctly, and the gap between the pipeline and the heat shield of the matched part is uniform, the original design needs to push the U-shaped block 21 on the detection tool and match the handheld flat ruler 22 to detect whether the position degree and the profile degree of the U-shaped block are qualified, if the U-shaped block 21 can move to the set position, and the two ends of the handheld flat ruler 22 can both contact the upper end of the U-shaped block 21, namely the U-shaped block is qualified. The traditional detection mode is not only low in efficiency, but also needs manual assistance, and the detection consistency is poor.

SUMMERY OF THE UTILITY MODEL

It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure.

In order to overcome the technical defects of the existing exhaust pipe detection, the utility model provides a brand-new detection tool for quickly detecting the exhaust pipe of the automobile.

The utility model discloses a checking fixture for automatically detecting an automobile exhaust pipe, which is characterized by comprising the following components:

the checking fixture trolley comprises a working table surface;

tail pipe orientation module, hole site detection module, clarifier detection module and bellows detection module set up in on the table surface.

Preferably, the utility model further provides a checking fixture for automatically detecting an automobile exhaust pipe, which is characterized in that the tail pipe positioning module further comprises:

internal expanding location detection mechanism, including movable rod, expansion ring, fixed block and detection cover, the toper end of movable rod is inserted and is established downthehole in the expansion ring, the fixed block is fixed the expansion ring tip the less aperture diameter end of movable rod, it establishes to detect the cover the outside of expansion ring, the movable rod is connected with the cylinder, and the expansion ring contacts with the movable rod, works as the cylinder during operation, the movable rod is by moving inwards promoting, the expansion ring rises and will wait to detect the tail pipe location of vehicle vent-pipe.

Preferably, the utility model further provides a checking fixture for automatically detecting an automobile exhaust pipe, which is characterized in that the corrugated pipe detection module further comprises:

the clamping plate is of a U-shaped structure and comprises a first clamping part, a second clamping part and a clamping plate base, wherein the first clamping part and the second clamping part are arranged in parallel and have the same size and shape, and the clamping plate base is connected with the first clamping part and the second clamping part and is integrally formed;

the bottom of the clamping plate base is connected with the air cylinder and is pushed by the air cylinder to move, so that the first clamping part and the second clamping part are driven to move.

Preferably, the utility model further provides a checking fixture for automatically detecting the automobile exhaust pipe, which is characterized in that an observation groove is formed in the clamping plate, and the widths of the observation groove are respectively the upper tolerance and the lower tolerance of the corrugated pipe.

Preferably, the utility model further provides a checking fixture for automatically detecting an automobile exhaust pipe, which is characterized in that the purifier detection module further comprises:

the lower ends and the side surfaces of the columnar units are surrounded to form a space for accommodating the purifier, and the columnar units are used for supporting and positioning the purifier;

and the at least one pair of laser correlation sensors are oppositely arranged at the upper end of the columnar unit.

Preferably, the utility model further provides a checking fixture for automatically detecting an automobile exhaust pipe, which is characterized in that the checking fixture for automatically detecting an automobile exhaust pipe further comprises:

and the pneumatic device is arranged in the space below the working table surface.

Preferably, the utility model further provides a checking fixture for automatically detecting an automobile exhaust pipe, which is characterized in that the checking fixture for automatically detecting an automobile exhaust pipe further comprises:

and the alarm module is arranged on the support above the checking fixture trolley.

Preferably, the utility model further provides a checking fixture for automatically detecting an automobile exhaust pipe, which is characterized in that the checking fixture for automatically detecting an automobile exhaust pipe further comprises:

and the carving machine is arranged on the working table surface.

The utility model further provides a checking fixture for automatically detecting the automobile exhaust pipe, which is characterized in that wheels and telescopic supporting legs are arranged below a trolley of the checking fixture.

According to the detection tool, after the exhaust pipe is pressed by the cylinder positioning device, the position degree and the profile degree of each structure of the exhaust pipe can be rapidly detected, and the air tightness can be automatically detected.

Drawings

Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present disclosure are selected from publicly known and used terms, some of the terms mentioned in the specification of the present disclosure may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present disclosure is understood, not simply by the actual terms used but by the meaning of each term lying within.

The above and other objects, features and advantages of the present invention will become apparent to those skilled in the art from the following detailed description of the present invention with reference to the accompanying drawings.

FIG. 1 is a schematic illustration of a prior art hand held level gauge test;

FIG. 2 is a schematic view of the overall composition of the gauge of the present invention;

FIG. 3 is a schematic view of an internal expansion positioning detection mechanism in the liner positioning module of the present invention;

FIGS. 4(1) and 4(2) are schematic views of a bellows detection device according to the present invention, respectively;

FIGS. 5(1) and 5(2) are schematic views showing the purifier detection module before and after installation of the purifier, respectively.

Reference numerals

1-leak detector

2-safety grating

3-tail pipe positioning module

4-checking fixture trolley

41-work bench

42-bracket

43-checking fixture wheel

44-telescopic supporting foot

5-carving machine

6-hole site detection module

7-purifier detection module

8-corrugated pipe detection module

9-pneumatic device

10-fence

11-flange plate

12-touch screen

13-alarm module

16-active lever

17-expansion ring

18-fixed block

19-detecting sleeve

20-tail pipe

21-U-shaped block

23-cylinder

24-card board

241-first card part

242-second card portion

243-card board base

25-observation tank

26-laser correlation sensor

30-corrugated pipe

40-purifier

41-work bench

42-bracket

43-checking fixture wheel

44-telescopic supporting foot

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Referring to fig. 2, a front view of the checking fixture for automatically detecting an exhaust pipe of an automobile according to the present invention is shown.

The checking fixture body comprises a checking fixture trolley 4 serving as a supporting part and a plurality of modules for detection, and the details are described in combination with the parts below.

The checking fixture trolley 4 comprises a working table 41 and a support 42 fixed above the working table 41, and the working table 41 is surrounded by the support 42 to form a fence 10. Various modules for detection are arranged on the working table 41 and mainly comprise a tail pipe positioning module 3, a hole site detection module 6, a purifier detection module 7 and a corrugated pipe detection module 8.

The bracket 42 is provided with the leak detector 1, the touch screen 12, the alarm module 13 and the like by utilizing the space above the working table 41.

The space below the work table 41 is provided with modules such as a pneumatic device 9.

In addition, a carving machine 5 is also placed on the table 41.

In order to move conveniently, the checking fixture trolley 4 is provided with checking fixture wheels 43 and telescopic supporting feet 44.

Fig. 3 further shows a schematic structural diagram of the internal expansion positioning detection mechanism in the tailpipe positioning module 3 on the table top 41.

The internal expansion positioning detection mechanism consists of a movable rod 16, an expansion ring 17, a fixed block 18 and a detection sleeve 19. Wherein, the conical end of the movable rod 16 is inserted in the middle hole of the expansion ring 17, and the fixed block 18 is fixed at one end of the expansion ring 17 with smaller aperture of the movable rod 16. The detection sleeve 19 is sleeved outside the expansion ring 17.

During detection, one end of the movable rod 16 in the conical end of the internal expansion positioning detection mechanism of the tail pipe positioning module 3 with the structure is inserted into the tail pipe 20 of the automobile exhaust pipe to be detected.

The movable rod 16 is connected with the cylinder, the expansion ring 17 is in contact with the movable rod 16, when the cylinder works, the movable rod 16 is pushed inwards (indicated by a left arrow in the figure), and the expansion ring 17 expands to position the tail pipe 20 of the exhaust pipe of the automobile to be detected (indicated by a top arrow and a bottom arrow in the figure, actually the whole circumferential direction expands outwards). Meanwhile, the size of the aperture of the positioned tail pipe 20 is detected through the detection sleeve 19, and whether the tail pipe is qualified or not is judged according to the size. The utility model adopts the design of the internal expansion positioning detection mechanism with the structure, solves the problem that the diameter size cannot be quickly detected because the external diameter of the tail pipe is manually pressed in the general tail pipe positioning, and can simultaneously realize the automatic positioning and the diameter detection of the tail pipe.

Fig. 4(1) and 4(2) respectively illustrate a specific structural diagram of the bellows detection module 8. The module comprises a cylinder 23 and a catch plate 24.

The clamping plate 24 is of a U-shaped structure, and includes two first clamping portions 241 and second clamping portions 242 arranged in parallel and having the same size and shape, and a clamping plate base 243 for connecting the two parts.

The first and second clamping portions 241 and 242 are provided with openings on the same side for clamping the corrugated pipe 30 on the exhaust pipe of the vehicle to be detected. The bottom of the clamping plate base 243 is connected with an air cylinder 23, and the air cylinder 23 pushes the clamping plate to move, so that the first clamping part 241 and the second clamping part 242 are driven to move.

During the detection, the air cylinder 23 pushes the openings on the same side of the first and second locking portions 241 and 242 on the locking plate 24, and if the air cylinder smoothly passes through the two ends of the corrugated tube 30, the detection of the position degree of the corrugated tube 30 is qualified, otherwise, the detection is unqualified.

In addition, as shown in fig. 4(2), the observation slot 25 is formed on the clamping plate 24, and the width of the observation slot 25 is the upper and lower tolerance of the corrugated tube 30, respectively, if the corrugated tube 30 is located in the slot, the profile is qualified, otherwise, the profile is not qualified.

The corrugated pipe detection module 8 is used for detecting the position degree of an automobile exhaust pipe to be detected, or the outline of the corrugated pipe, and if too much difference exists in the installation process, hardware interference can be caused.

Fig. 5(1) and 5(2) are schematic views respectively illustrating the purifier detection module 7 before and after installation of the purifier 60.

The module comprises a plurality of columnar units 40, wherein the lower end and the side surface of each columnar unit 40 are surrounded with an accommodating space for forming a purifier 60, the purifier 60 is supported and positioned, the height and the size of each columnar unit 40 can be adjusted according to the purifier 60, a pair of laser correlation sensors 26 are respectively installed at the upper ends of the columnar units 40, and if parts are placed on a checking fixture, the sensor can receive optical signals, the profile tolerance is qualified, otherwise, the parts are unqualified.

The exhaust pipe of the detected automobile needs to be sealed in the welding process, and if air leakage occurs, the exhaust pipe of the automobile can affect the emission inspection of the automobile, generate abnormal sound and even generate potential safety hazards. The checking fixture integrates air tightness detection, gas provided by a pneumatic device 9 is input at a flange plate 11 shown in figure 1, the gas is received at a tail pipe positioning module 3, and if the difference value between the two is less than 1.5L/h, the checking fixture is qualified.

In addition, when the detection tool uses the air pump for automatic detection, the safety grating 2 is arranged above the working platform surface 41 of the detection tool trolley 5, and once a person or a foreign body appears in the range of the trolley, the detection tool gives an alarm and stops detection, so that the safety of an operator is ensured.

In addition, after all the items are detected to be qualified, the detection tool also integrates a carving machine 5, and relevant marks, such as part numbers, suppliers, production dates and other information can be carved on the products, so that 100% of the products carved with the marks are ensured to be in a controlled range.

Before the detection tool for automatically detecting the automobile exhaust pipe is used for detection, the corresponding simulation sensing nut is screwed into a product to be detected. Pressing the 'loosening' button, opening all cylinders of the exhaust pipe, putting the product into the checking fixture body in a free state according to the pipeline trend, manually pre-pressing the air inlet flange plate 11, pressing the 'pressing' button, and sequentially pressing the products by the cylinders in the tail pipe positioning module 3 to finish positioning.

After the location is accomplished, bellows detection module 8 begins to detect product position degree and profile tolerance and detects, concretely relates to: the clamping plate 24 of the air tightness detection device can receive signals through the exhaust pipe, the laser correlation sensor can receive the signals, and after all detection positions are judged to be qualified, the corrugated pipe detection module 8 transmits the signals to the air tightness assembly, and the air tightness detection is started through the flange plate 11 and the pneumatic device 9; once the air pressure difference value is less than 1.5L/h, the detection is judged to be qualified, and then a signal is transmitted to the automatic carving machine 5 to finish the marking and carving of the part. In the detection process, the alarm module 13 alarms and suspends the detection if unqualified detection items exist.

In a preferred embodiment, the alarm module 13 may include a five-color light or an audible and visual alarm.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to imply that more features are required than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.

Claims (9)

1. The utility model provides an automatic examine utensil of examining of automobile exhaust pipe which characterized in that, examine utensil and include:

the checking fixture trolley comprises a working table surface;

tail pipe orientation module, hole site detection module, clarifier detection module and bellows detection module set up in on the table surface.

2. The inspection device for automatically inspecting an exhaust pipe of a vehicle according to claim 1, wherein the tailpipe positioning module further comprises:

internal expanding location detection mechanism, including movable rod, expansion ring, fixed block and detection cover, the toper end of movable rod is inserted and is established downthehole in the expansion ring, the fixed block is fixed the expansion ring tip the less aperture diameter end of movable rod, it establishes to detect the cover the outside of expansion ring, the movable rod is connected with the cylinder, and the expansion ring contacts with the movable rod, works as the cylinder during operation, the movable rod is promoted inwards, the expansion ring rises and will wait to detect the tail pipe location of vehicle vent-pipe.

3. The inspection device for automatically inspecting exhaust pipe of automobile according to claim 2, wherein the bellows inspection module further comprises:

the clamping plate is of a U-shaped structure and comprises a first clamping part, a second clamping part and a clamping plate base, wherein the first clamping part and the second clamping part are arranged in parallel and have the same size and shape, and the clamping plate base is connected with the first clamping part and the second clamping part and is integrally formed;

the bottom of the clamping plate base is connected with the air cylinder and is pushed by the air cylinder to move, so that the first clamping part and the second clamping part are driven to move.

4. The inspection device for automatically inspecting an exhaust pipe of an automobile according to claim 3,

and the observation groove is formed in the clamping plate, and the widths of the observation groove are the upper tolerance and the lower tolerance of the corrugated pipe respectively.

5. The inspection device for automatically inspecting an exhaust pipe of an automobile according to claim 4, wherein the purifier inspection module further comprises:

the lower ends and the side surfaces of the columnar units are surrounded to form a space for accommodating the purifier, and the columnar units are used for supporting and positioning the purifier;

and the at least one pair of laser correlation sensors are oppositely arranged at the upper end of the columnar unit.

6. The inspection device for automatically inspecting automobile exhaust pipes according to claim 5, wherein the inspection device for automatically inspecting automobile exhaust pipes further comprises:

and the pneumatic device is arranged in the space below the working table surface.

7. The inspection device for automatically inspecting automobile exhaust pipes according to claim 6, wherein the inspection device for automatically inspecting automobile exhaust pipes further comprises:

and the alarm module is arranged on the bracket above the checking fixture trolley.

8. The inspection device for automatically inspecting automobile exhaust pipes according to claim 7, wherein the inspection device for automatically inspecting automobile exhaust pipes further comprises:

and the carving machine is arranged on the working table surface.

9. The inspection device for automatically inspecting an exhaust pipe of an automobile according to claim 8,

wheels and telescopic supporting legs are arranged below the checking fixture trolley.

Images