CN110530652B - Automobile exhaust pipe detection device and automobile exhaust pipe leakage detection method - Google Patents

Automobile exhaust pipe detection device and automobile exhaust pipe leakage detection method Download PDF

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Publication number
CN110530652B
CN110530652B CN201910789834.8A CN201910789834A CN110530652B CN 110530652 B CN110530652 B CN 110530652B CN 201910789834 A CN201910789834 A CN 201910789834A CN 110530652 B CN110530652 B CN 110530652B
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China
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hot
cold
cylinder
exhaust pipe
embedding
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CN110530652A (en
Inventor
王友猛
陈靖
王德胜
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Suzhou Chuangyou Testing Technology Co ltd
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Suzhou Yuanlue Intellectual Property Operation Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/035—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18—Supports or connecting means for meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/022—Test plugs for closing off the end of a pipe
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/025—Details with respect to the testing of engines or engine parts

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention relates to the field of automobile exhaust pipe detection. A kind of car exhaust pipe detection equipment, including flow detection device, cold inserting device, hot-inserting device, screw up the device, dust-collecting equipment, leak testing device and control system; the flow detection device is connected with the cold plug device; the flow detection device is used for detecting the flow of the exhaust pipe; the cold plug device is used for performing cold plug processing on the exhaust pipe; the hot-inserting device is connected with the cold-inserting device and is used for hot-inserting the nut; the tightening device is connected with the hot-embedding device and used for tightening the screw to the exhaust pipe; the dust removal device is connected with the tightening device and is used for removing dust in the exhaust pipe; the leakage testing device is connected with the dust removal device and used for detecting the leakage condition of the exhaust pipe. The advantage of this patent is that promote the leak protection leakproofness of blast pipe and prevent blockking up the effect, further promotes effect and the detection quality that the blast pipe detected.

Description

Automobile exhaust pipe detection device and automobile exhaust pipe leakage detection method
Technical Field
The invention relates to the field of automobile exhaust pipe detection, in particular to automobile exhaust pipe detection equipment and a detection method thereof.
Background
An exhaust pipe of an automobile is used to guide exhaust gas generated by combustion of fuel inside an engine and discharge the exhaust gas. Since whether the exhaust gas smoothly affects the power efficiency and the noise, the exhaust gas leakage detection of the exhaust pipe affects the throttle control and further affects the fuel consumption, thereby causing a direct relationship and directly affecting the performance of the engine, the noise level and the fuel consumption.
The utility model discloses a present vehicle vent-pipe detection device, for example in the chinese utility model patent of publication number CN207280424U (the publication date is 2018.04.27), including examining test table, examine test table and go up to be equipped with detection mechanism perpendicularly, detection mechanism includes the baffle of two mutual parallels, be equipped with range sensor on the baffle, range sensor links to each other with the control unit. The utility model discloses the device is through introducing control unit and range finding sensor in advance and carrying out the crookedness to the blast pipe according to the return bend parameter that sets up in advance and detect, if the test result thinks the blast pipe qualified in the error band, if not in the error band, the controller can give correction data, directly is used for correcting, reduces and need just can revise by artificial experience, get rid of because of the human experience mistake appears, lead to the phenomenon that the automobile exhaust pipe directly abandoned, operating personnel's requirement has been reduced, work efficiency has been improved.
However, the detection structure of the detection device is too simple, only rough detection is performed, the exhaust pipe cannot be detected systematically in the detection process of the quality of the whole exhaust pipe, and flow detection, cold-plugging and hot-inserting processing, tightening and dust removal and detection of leakage conditions cannot be realized, so that the leakage-proof effect of the exhaust pipe is poor, and the detection precision of the exhaust pipe cannot be ensured.
Disclosure of Invention
The invention aims to solve the problem of detection of the existing automobile exhaust pipe, and provides a flow detection device for flow detection; the cold inserting device and the hot embedding device are used for cold inserting processing and hot embedding processing, so that the leakage-proof effect of the exhaust pipe is further improved; the tightening device and the dust removal device are used for respectively tightening and removing dust, so that the sealing performance and the anti-blocking effect are further improved; the automobile exhaust pipe detection equipment further improves detection precision through the leakage test device.
For the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
a kind of car exhaust pipe detection equipment, this equipment includes the flow detection device, cold cartridge device, hot-inserting device, screws up the device, dust-collecting equipment, leak testing device and control system; the discharge end of the flow detection device is connected with the feed end of the cold plug device; the flow detection device is used for detecting the flow of the exhaust pipe; the cold plug device is used for cold plug processing of the exhaust pipe; the feeding end of the hot-inserting device is connected with the discharging end of the cold-inserting device, and the hot-inserting device is used for hot-inserting the nuts; the feeding end of the screwing device is connected with the discharging end of the hot-embedding device, and the screwing device is used for screwing the screw onto the exhaust pipe; the feeding end of the dust removal device is connected with the discharging end of the tightening device, and the dust removal device is used for removing dust in the exhaust pipe; the feed end of the leakage testing device is connected with the discharge end of the dust removal device, and the leakage testing device is used for detecting the leakage condition of the exhaust pipe.
Preferably, the flow detection device comprises a flow detection bottom plate, a flow detection support, a three-small-opening plugging assembly, a front detection matching frame and a rear detection matching frame; the flow detection bracket is arranged at the front part of the flow detection bottom plate; a plurality of flow detection limiting blocks are arranged on the front wall of the flow detection bracket; the left side and the right side of the rear part of the flow detection bracket are both provided with flow detection limiting cylinders; the two flow detection limiting cylinders penetrate through the flow detection support and are connected with flow detection limiting pressure arms; three exhaust pipe matching through holes are arranged on the flow detection support between the two flow detection limiting cylinders at intervals; the three small-opening plugging components are arranged on the flow detection bottom plate and are positioned at the rear side of the flow detection support; the three-small-opening plugging component comprises three-small-opening plugging air cylinders, three-small-opening plugging slide rails and three-small-opening plugging moving plates; the three small-opening plugging cylinders are arranged on the flow detection bottom plate, the rear parts of the three small-opening plugging moving plates are connected with the front parts of the three small-opening plugging cylinders, the three small-opening plugging moving plates move back and forth through the three small-opening plugging slide rails, and three plugging cylinders are arranged on the three small-opening plugging moving plates at intervals; each plugging cylinder is connected with a plugging head, and the three plugging heads are matched with the three exhaust pipe matching through holes; the front detection matching frame and the rear detection matching frame are respectively arranged at the front part and the rear part of the flow detection bottom plate.
Preferably, the cold inserting device comprises a cold inserting bottom plate, a cold inserting supporting clamp assembly and a cold inserting spring pressing assembly; the cold inserting supporting clamp assembly comprises a cold inserting supporting frame, a plurality of cold inserting jacking cylinders and a plurality of cold inserting pressure head modules; the cold inserting support frame is arranged on the cold inserting bottom plate; a plurality of cold jacks are alternately arranged at the front and the back of the top of the cold plugging support frame; the cold-plugging jacking cylinders are alternately arranged on the bottom plate of the cold-plugging support frame from front to back; the top of each cold-plugging jacking cylinder is connected with a cold-plugging jacking head sleeve; the middle part of the cold plug sleeve is provided with an adapter; the cold inserting and pressing head modules are alternately arranged on the top plate of the cold inserting support frame in a front-back manner and correspond to the cold inserting and jacking air cylinders; the cold insertion pressure head module comprises a cold insertion pressure head fixing seat and a cold insertion pressure head; the cold inserting pressure head fixing seat is arranged on the bottom surface of a top plate of the cold inserting support frame, the cold inserting pressure head is arranged at the top of the cold inserting pressure head fixing seat, the top of the cold inserting pressure head is positioned in the cold inserting hole, and the bottom of the cold inserting pressure head is connected with a cold inserting displacement sensor; the cold-inserting spring pressing assembly comprises a cold-inserting spring pressing bracket, a cold-inserting spring pressing cylinder, a cold-inserting spring pressing plate and a plurality of cold-inserting spring pressing heads; the cold-inserting spring pressing support is arranged on the cold-inserting bottom plate and is positioned above the cold-inserting supporting clamp assembly, the cold-inserting spring pressing cylinder is arranged in the center of the top of the cold-inserting spring pressing support, and the cold-inserting spring pressing cylinder penetrates through the cold-inserting spring pressing support and is connected with the cold-inserting spring pressing plate; the cold spring pressing heads are alternately arranged at the bottom of the cold spring pressing plate in a front-back manner, and the cold spring pressing heads are corresponding to the cold insertion holes.
Preferably, the hot-embedding device comprises a hot-embedding base, a hot-embedding clamp module, a hot-embedding feeding module and a hot-embedding processing module; the hot-embedding clamp module comprises three hot-embedding clamp brackets, a hot-embedding clamp electric cylinder, two hot-embedding clamp sliding rails, a hot-embedding clamp moving plate, a workpiece positioning bottom plate, a first rotary pressing assembly and a second rotary pressing assembly; the three hot-embedding clamp brackets are arranged on the hot-embedding base in parallel at intervals, and the electric cylinder of the hot-embedding clamp is arranged at the top of the hot-embedding clamp bracket positioned in the middle; the two hot-embedded clamp sliding rails are respectively arranged at the tops of the hot-embedded clamp brackets at the two sides; the hot-embedding fixture moving plate is arranged on the hot-embedding fixture electric cylinder and the two hot-embedding fixture slide rails, and the workpiece positioning bottom plate is arranged on the hot-embedding fixture moving plate; the first rotary pressing assembly and the second rotary pressing assembly are respectively positioned at the left side and the right side of the workpiece positioning bottom plate; the first rotary pressing component comprises a rotary pressing bracket, two rotary pressing motors, a workpiece positioning supporting block, a hinged pressing bracket, a hinged pressing cylinder and a workpiece positioning matching frame; the rotary pressing bracket is arranged at the left front part of the workpiece positioning bottom plate; the front part of the rotary pressing bracket is provided with a workpiece limiting block; the two rotary compaction motors are respectively arranged on the left lower side of the rear part of the rotary compaction bracket and the right upper side of the rear part of the rotary compaction bracket; the two rotary pressing motors respectively penetrate through the rotary pressing support to be connected with rotary pressing arms; the workpiece positioning support block is arranged on the workpiece positioning bottom plate and is positioned on the right side of the rotary pressing bracket; the hinged pressing support is arranged on the workpiece positioning bottom plate and is positioned at the rear side of the rotary pressing support; the hinged pressing cylinder is arranged at the top of the hinged pressing bracket; the top of the hinged pressing cylinder is connected with a hinged pressing block; the workpiece positioning and matching frame is arranged on the workpiece positioning bottom plate and is positioned on the right rear side of the hinged compaction cylinder, and a workpiece positioning and matching block is arranged at the top of the workpiece positioning and matching frame; the second rotary pressing component and the first rotary pressing component have the same structure, and the second rotary pressing component is used for reversely fixing the workpiece; a hole through-blocking detection cylinder is arranged on the workpiece positioning bottom plate and positioned at the rear side of the workpiece positioning supporting block; the hole-through-plug detection cylinder is connected with a hole-through-plug detection needle through a hole-through-plug connecting plate; the hot-embedded feeding module is used for conveying and feeding nuts; the hot-embedding processing module is used for hot-embedding the nut on the workpiece.
Preferably, the hot-embedding feeding module comprises a nut feeding support, a nut vibrating feeder, a nut conveying support, a nut conveying limiting block, a first material pushing assembly and a second material pushing assembly; the nut feeding support is arranged on the right rear side of the hot-embedding base; the nut vibration feeder is arranged on the nut feeding support, and the nut conveying support is arranged on the front side of the nut feeding support; the nut conveying limiting block is arranged on the nut conveying support, a conveying inlet connected with the discharge end of the nut vibrating feeder is formed in the rear side of the nut conveying limiting block, a T-shaped channel is formed in the nut conveying limiting block, and the lower portion of the T-shaped channel is communicated with the conveying inlet; the first material pushing assembly comprises a material pushing cylinder, a material pushing slide rail, a material pushing moving block and a material pushing rod; the pushing cylinder is arranged at the right part of the nut conveying bracket; the pushing moving block is connected with the pushing cylinder and horizontally slides through the pushing slide rail; the material pushing rod is arranged at the top of the material pushing moving block and is connected with the bottom of the T-shaped channel; the nut conveying limiting block is provided with a limiting cover plate, and the limiting cover plate is provided with a nut detection through hole; the front side of the nut conveying limiting block is linked with a heating supporting seat; the heating support seat is provided with a heat insulation frame; a heating block is arranged in the heat insulation frame, and a heating conveying channel is arranged in the middle of the heating block; the heating conveying channel is connected with the T-shaped channel; the first material pushing assembly and the second material pushing assembly are identical in structure, and a material pushing rod in the second material pushing assembly is connected with the rear side of the top of the T-shaped channel.
Preferably, the hot-embedding processing module comprises a hot-embedding processing portal frame, a double-shaft electric cylinder, a hot-embedding processing moving plate, a hot-embedding lifting cylinder, a hot-embedding lifting plate, a hot-embedding guide rod and a hot-embedding head; the hot-embedding processing portal frame is arranged on the hot-embedding base, and the double-shaft electric cylinder is horizontally arranged in the middle of the hot-embedding processing portal frame; the hot-embedding processing moving plate is arranged on the moving part of the double-shaft electric cylinder; the hot-embedding lifting cylinder is longitudinally arranged in the middle of the hot-embedding processing moving plate through a hot-embedding lifting cylinder fixing block; the hot-embedding lifting cylinder penetrates through the hot-embedding lifting cylinder fixing block to be connected with the top of the hot-embedding lifting plate, and the hot-embedding lifting plate is matched with the hot-embedding lifting cylinder fixing block through the lifting guide rod; the hot-embedding head is arranged at the bottom of the hot-embedding lifting plate through the hot-embedding guide rod; and a waste clamping cylinder is arranged in the middle of the right side of the hot-embedding machining portal frame.
Preferably, the tightening device comprises a tightening bottom plate, a screw feeding vibrator, a tightening bracket, a tightening rotating shaft, a first tightening hinge plate, a second tightening hinge plate and a tightening rotating cylinder; the screw feeding vibrator is arranged at the rear part of the tightening bottom plate; the screw feeding vibrator is used for conveying and feeding screws; the tightening bracket is arranged in the middle of the tightening bottom plate; the tightening rotating shaft is horizontally arranged at the upper part of the tightening bracket through a tightening bearing; the screwing rotating shaft is connected with a rotating base; the left part of the rotating base is provided with three workpiece coarse positioning blocks, and each workpiece coarse positioning block is provided with a U-shaped matching groove; the front side of the left part and the rear side of the left part of the rotating base are both provided with a coarse positioning clamping cylinder; the coarse positioning and clamping cylinders are connected with coarse positioning hinged pressing blocks; the middle part of the rotating base is provided with an exhaust pipe coarse positioning supporting block; the first screwing hinged plate is hinged to the right end of the screwing rotating shaft, the upper end of the second screwing hinged plate is hinged to the first screwing hinged plate, the lower end of the second screwing hinged plate is hinged to the screwing bottom plate, the screwing rotary cylinder is obliquely arranged on the screwing bottom plate, and the moving end of the screwing rotary cylinder is connected with the hinged position of the first screwing hinged plate and the second screwing hinged plate; the rear side of the tightening bottom plate is provided with a tightening support, and a tightening device is arranged on the tightening support.
Preferably, the dust removal device comprises a dust removal bottom plate, a dust removal assembly, a dust removal large opening plugging assembly, a dust removal front exhaust pipe support and a dust removal middle exhaust pipe support; the dust removal assembly comprises a dust removal bracket, a first dust removal limiting cylinder, a second dust removal limiting cylinder and a dust removal butt-joint block; the dust removing bracket is arranged at the front part of the dust removing bottom plate; the middle part of the dust removal bracket is provided with three runway-shaped dust removal holes which are arranged at intervals, and the dust removal bracket is provided with a plurality of dust removal limiting blocks; the first dust removal limiting cylinder and the second dust removal limiting cylinder are respectively arranged on the left side and the right side of the dust removal support; the first dust removal limiting cylinder and the second dust removal limiting cylinder are both connected with a dust removal limiting pressure arm through a dust removal support; the dust removal butt joint block is arranged on the rear wall of the dust removal support, and the rear part of the dust removal butt joint block is connected with a dust collection interface; the dust removal front exhaust pipe bracket and the dust removal middle exhaust pipe bracket are respectively arranged on the front side and the rear side of the dust removal bracket; the dust removal large-opening plugging component comprises a dust removal large-opening plugging support and a dust removal large-opening plugging air cylinder, and the dust removal large-opening plugging support is arranged at the right rear part of the dust removal bottom plate; the dust removal large-opening plugging air cylinder is obliquely arranged on the dust removal large-opening plugging support, and a dust removal plug is arranged at the moving end of the dust removal large-opening plugging air cylinder.
Preferably, the leakage testing device comprises a leakage testing bracket, a movable supporting module, a spring pressing module, a large opening plugging module and a side opening plugging module; the movable support module comprises a movable support slide rail, a movable support cylinder and a movable support plate; the movable support plate is arranged on the leakage test bracket through a movable support sliding rail, and a movable support matching frame is arranged on the movable support plate; the movable supporting cylinder is connected with one side of the movable supporting plate; a movable positioning cylinder is arranged on the right side of the movable supporting module; the spring pressing module comprises a spring pressing bracket, a spring pressing cylinder, a spring pressing plate and a plurality of spring pressing heads; the leakage test device comprises a leakage test support, a spring pressing cylinder, a spring pressing guide rod, a plurality of spring pressing heads, a movable support matching frame and a plurality of spring pressing heads, wherein the spring pressing support is arranged on the leakage test support and is positioned above a movable support module; the middle part of the spring pressing support is also provided with a marking machine; the large-opening plugging module comprises a large-opening plugging base, a large-opening plugging cylinder and a large-opening plugging panel; the large-opening plugging base is arranged on the left side of the movable supporting module, and the large-opening plugging air cylinder is arranged on the large-opening plugging base; the large-opening plugging panel is connected with the movable end of the large-opening plugging air cylinder; the side port plugging module comprises a side port moving cylinder, a side port sliding rail, a side port moving plate, a side port plugging support, a side port plugging cylinder body, a small-opening plugging cylinder and a small-opening plugging head; the side port moving cylinder is arranged on the left front side of the leakage test bracket; the side port moving plate is horizontally arranged on the leakage testing bracket through a side port sliding rail and is connected with a side port moving cylinder; the side port plugging support is arranged on the side port moving plate, and the side port plugging air cylinder is obliquely arranged at the top of the side port plugging support; the side port plugging cylinder body is connected with the side port plugging cylinder through a plugging connecting plate; the small-opening plugging air cylinder is arranged on the right part of the side opening moving plate, and the small-opening plugging head is connected with the small-opening plugging air cylinder through the small-opening connecting plate.
A detection method of automobile exhaust pipe detection equipment sequentially comprises the following steps: the exhaust pipe is clamped and fixed through a flow detection device, so that flow detection is performed through a flow detector; the cold inserting support clamp assembly in the cold inserting device is used for clamping and fixing, and the cold inserting spring pressing assembly is used for realizing cold inserting pressing operation; secondly, clamping and fixing the exhaust pipe through a hot-embedding clamp module in the hot-embedding device, conveying and feeding the nut through a hot-embedding feeding module, and hot-embedding the nut onto the exhaust pipe through a hot-embedding processing module; feeding screws by a screw feeding vibrator in the tightening device, and tightening the screws onto the nuts by a tightening device; fourthly, removing dust in the exhaust pipe through a dust removing device; positioning forwards and backwards through a movable support module in the leakage testing device; and (V) compressing and fixing the exhaust pipe through the spring compression module, and plugging an opening of the exhaust pipe through the large-opening plugging module and the side-opening plugging module, so that final leakage detection is performed through the leakage detector.
According to the automobile exhaust pipe detection equipment adopting the technical scheme, the flow detection device is convenient for effectively carrying out flow test on the exhaust pipe, the exhaust pipe is prevented from shaking or shifting in the test process, and the stability and the accuracy of flow detection are further improved; the cold-plugging support clamp assembly in the cold-plugging device further improves the fixing stability of the exhaust pipe, and the cold-plugging spring pressing assembly is matched with the cold-plugging support clamp assembly to further improve the cold-plugging processing of the exhaust pipe, so that the anti-leakage effect is further improved; the exhaust pipe is conveniently and stably limited by the hot-embedding clamp module in the hot-embedding device, and the moving and positioning precision of the exhaust pipe is conveniently improved; the nuts are automatically conveyed and fed through the hot-embedding feeding module, and are heated during conveying, so that the heating and conveying efficiency is improved; the hot-embedding processing module further improves the precision of hot-embedding processing and the stability of hot-embedding processing; the tightening device replaces manual tightening, the tightening efficiency is further improved, and the tightening quality and the tightening firmness are further improved through the tightening device, so that the sealing performance of the exhaust pipe is further ensured; the stability in the dust removal process is further improved through the first dust removal limiting cylinder and the second dust removal limiting cylinder in the dust removal assembly in the dust removal device, and the circulation and the cleanliness of the exhaust pipe are further improved through dust collection operation, so that the exhaust effect of the exhaust pipe is improved; the exhaust pipe can be accurately moved and positioned and the moving efficiency can be improved by moving the support module in the leakage testing device; the exhaust pipe is conveniently fixed and pressed through the spring pressing module, so that the stability in the test process is improved; each pipe orifice of the exhaust pipe is blocked by the large-opening blocking module and the side-opening blocking module respectively, so that the detection precision and the detection precision are further improved.
To sum up, the technological effect of this patent is that promote the leak protection leakproofness of blast pipe and prevent blockking up the effect, further promotes effect and the detection quality that the blast pipe detected.
Drawings
FIG. 1 is a schematic structural diagram of an exhaust pipe inspection apparatus for an automobile according to the present invention.
Fig. 2 is a schematic structural view of the exhaust pipe.
Fig. 3 is a schematic structural diagram of the flow rate detection device.
Fig. 4 is a schematic structural diagram of the cold plug device.
Fig. 5 is a schematic structural view of a heat-staking fixture module.
FIG. 6 is a schematic structural view of a hot-insert feeding module and a hot-insert processing module.
Fig. 7 is a schematic structural view of the tightening device.
Fig. 8 is a schematic structural view of the dust removing device.
Fig. 9 is a schematic structural view of the leak testing apparatus.
Detailed Description
As shown in fig. 1, the automobile exhaust pipe detection equipment is characterized by comprising a flow detection device 1, a cold plug device 2, a hot plug device 5, a tightening device 3, a dust removal device 4, a leakage test device 6 and a control system; the discharge end of the flow detection device 1 is connected with the feed end of the cold plug device 2; the flow detection device 1 is used for detecting the flow of an exhaust pipe; the cold plug device 2 is used for cold plug processing of the exhaust pipe; the feeding end of the hot-inserting device 5 is connected with the discharging end of the cold-inserting device 2, and the hot-inserting device 5 is used for hot-inserting the nut; the feeding end of the screwing device 3 is connected with the discharging end of the hot-embedding device 5, and the screwing device 3 is used for screwing the screw onto the exhaust pipe; the feeding end of the dust removing device 4 is connected with the discharging end of the tightening device 3, and the dust removing device 4 is used for removing dust in the exhaust pipe; the feed end of the leakage testing device 6 is connected with the discharge end of the dust removal device 4, the leakage testing device 6 is used for detecting the leakage condition of the exhaust pipe, and the control system is used for respectively controlling the flow detection device 1, the cold inserting device 2, the hot inserting device 5, the screwing device 3, the dust removal device 4 and the leakage testing device 6 to work.
As shown in fig. 2, the exhaust pipe to be detected is shown, and comprises a main pipe 70 and three branch pipes 71, wherein the three branch pipes 71 are connected with the main pipe 70 and are regularly arranged; a large opening 72 is provided on the left side of the main tube 70; a side port 73 is provided on the front upper side of the main pipe, and a small port 74 is provided on the front side of the main pipe.
As shown in fig. 1 and 3, the flow rate detection device 1 includes a flow rate detection base plate 11, a flow rate detection support 12, a three-port plugging assembly 13, a front detection fitting frame 14, and a rear detection fitting frame 15; the flow detection bracket 12 is arranged at the front part of the flow detection bottom plate 11; be provided with polylith flow detection stopper 121 on the antetheca of flow detection support 12, be convenient for further fixed blast pipe through polylith flow detection stopper 121 to improve stability. The left side and the right side of the rear part of the flow detection bracket 12 are both provided with flow detection limiting cylinders 122; the two flow detection limiting cylinders 122 penetrate through the flow detection support 12 and are connected with flow detection limiting pressure arms 123, and the flow detection limiting pressure arms 123 are driven by the flow detection limiting cylinders 122 to clamp and fix two sides of the three branch pipes 71. Further improving the firmness. Three exhaust pipe matching through holes 124 are formed in the flow detection support 12 between the two flow detection limiting cylinders 122 at intervals, and the three exhaust pipe matching through holes 124 are matched with the three branch pipes 71, so that the uniformity is further improved. The three small-opening plugging components 13 are arranged on the flow detection bottom plate 11 and are positioned at the rear side of the flow detection support 12; the three-small-opening plugging component 13 comprises three-small-opening plugging air cylinders 131, three-small-opening plugging slide rails 132 and three-small-opening plugging moving plates 133; the three small-opening plugging cylinders 131 are arranged on the flow detection bottom plate 11, the rear parts of the three small-opening plugging moving plates 133 are connected with the front parts of the three small-opening plugging cylinders 131, the three small-opening plugging moving plates 133 move back and forth through the three small-opening plugging slide rails 132, and three plugging cylinders 134 are arranged on the three small-opening plugging moving plates 133 at intervals; each plugging cylinder 134 is connected with a plugging head 135, and the three plugging heads 135 are matched with the three exhaust pipe matching through holes 124; the front detection matching frame 14 and the rear detection matching frame 15 are respectively arranged at the front part and the rear part of the flow detection bottom plate 11, and the front part and the rear part of the exhaust pipe are further strengthened and fixed through the front detection matching frame 14 and the rear detection matching frame 15, so that the flow tester is used for performing stable flow test.
When the flow detection device 1 works, one end of three branch pipes 71 of an exhaust pipe is fixed on a flow detection support 12, the front part and the rear part of a flow detection bottom plate 11 are respectively fixed on a front detection matching frame 14 and a rear detection matching frame 15, and a flow detection limiting cylinder 122 drives a flow detection limiting pressure arm 123 to clamp and fix two sides of the three branch pipes 71; the three-small-opening plugging air cylinder 131 drives the three-small-opening plugging moving plate 133 to enable the plugging head 135 to penetrate through the exhaust pipe matching through hole 124 to enter the branch pipe for plugging, and therefore stable flow testing is conducted through the flow tester.
This flow detection device 1 is convenient for effectively carry out the flow test to the blast pipe to prevent that the blast pipe from rocking or shifting in the testing process, further improve flow detection's stability and accuracy.
As shown in fig. 1 and 4, the cold insertion device 2 comprises a cold insertion base plate 21, a cold insertion support clamp assembly 22 and a cold insertion spring pressing assembly 23; the cold insertion supporting clamp assembly 22 comprises a cold insertion supporting frame 221, four cold insertion jacking cylinders 222 and four cold insertion pressure head modules; the cold inserting support frame 221 is arranged on the cold inserting bottom plate 21; four cold inserting holes 2211 are alternately arranged at the front and the back of the top of the cold inserting support frame 221, so that more accurate and stable cold inserting operation is facilitated. The plurality of cold plug jacking cylinders 222 are alternately arranged on the bottom plate of the cold plug support frame 221 from front to back; and the top of each cold-plug jacking cylinder 222 is connected with a cold-plug jacking sleeve 2221; the middle part of cold plug set 2221 is provided with adapter 2222, and the quality of cold inserting is further promoted through adapter 2222 and the cooperation of cold plug set 2221. The cold plugging pressure head modules are alternately arranged on the top plate of the cold plugging support frame 221 in a front-back manner and correspond to the cold plugging jacking cylinder 222. The cold insertion pressure head module comprises a cold insertion pressure head fixing seat 223 and a cold insertion pressure head 224; pressure head fixing base 223 is inserted in cold and the roof bottom surface of support frame 221 is inserted, cold insert pressure head 224 set up and insert the top of pressure head fixing base 223 in cold, and the top that inserts pressure head 224 in cold is located cold jack 2211, be convenient for better with cold insert spring hold-down assembly 23 and cooperate. The bottom of cold insertion pressure head 224 is connected with cold insertion displacement sensor 225, and the precision and accuracy of displacement are further improved through cold insertion displacement sensor 225. The cold-plug spring pressing assembly 23 comprises a cold-plug spring pressing bracket 231, a cold-plug spring pressing cylinder 232, a cold-plug spring pressing plate 233 and four cold-plug spring pressing heads 234; cold insert spring hold-down support 231 set up on cold insert bottom plate 21, and be located the cold top of inserting supporting jig subassembly 22, cold insert spring hold-down cylinder 232 setting at the cold top center of inserting spring hold-down support 231, and cold insert spring hold-down cylinder 232 pass cold insert spring hold-down support 231 with cold insert spring hold-down plate 233 and be connected, insert spring hold-down cylinder 232 through cold and drive cold insert spring hold-down plate 233 and go up and down to remove, further promote lifting efficiency. The plurality of cold inserting spring pressing heads 234 are alternately arranged at the bottom of the cold inserting spring pressing plate 233 in a front-back manner, and the cold inserting spring pressing heads 234 correspond to the cold inserting holes 2211.
During operation, the cold-plug device 2 limits the end of the three branch pipes 71 of the exhaust pipe at the top of the cold-plug support frame 221, and drives the adapter 2222 in the cold-plug ejector sleeve 2221 to limit the exhaust pipe by the cold-plug ejector cylinder 222 in the cold-plug support clamp assembly 22; cold inserting spring pressing cylinder 232 in cold inserting spring pressing assembly 23 drives four cold inserting spring pressing heads 234 on cold inserting spring pressing plate 233 to press to the exhaust pipe, and makes cold inserting spring pressing heads 234 press into cold inserting holes 2211, so that cold inserting pressing heads 224 in cold inserting pressing head fixing seats 223 press downwards, and cold inserting pressing heads 224 are matched with adapters 2222 to realize cold inserting processing.
This cold cartridge is put 2 and is inserted supporting jig subassembly 22 through cold and further promote the fixed stability of blast pipe, inserts spring hold-down subassembly 23 through cold and inserts supporting jig subassembly 22 with cold and cooperate, further promotes the cold processing of inserting of blast pipe to further promote and prevent leaking the effect.
As shown in fig. 1, 5 and 6, the hot-inserting apparatus 5 includes a hot-inserting base 51, a hot-inserting jig module 52, a hot-inserting feeding module 53, and a hot-inserting processing module 54; the hot-embedding clamp module 52 comprises three hot-embedding clamp brackets 521, a hot-embedding clamp electric cylinder 522, two hot-embedding clamp sliding rails 523, a hot-embedding clamp moving plate 524, a workpiece positioning bottom plate 525, a first rotating compaction component 526 and a second rotating compaction component 527; three hot-inserting clamp supports 521 are arranged on the hot-inserting base 51 at intervals in parallel, and the support strength is further improved through the three hot-inserting clamp supports 521, so that better support is facilitated, and the stability is improved. The electric cylinder 522 of the hot-embedding clamp is arranged at the top of the hot-embedding clamp bracket 521 in the middle; the two heat-embedding fixture slide rails 523 are respectively arranged at the tops of the two side heat-embedding fixture supports 521, and the sliding effect is further improved conveniently through the heat-embedding fixture slide rails 523. The hot-embedding clamp moving plate 524 is arranged on the hot-embedding clamp electric cylinder 522 and the two hot-embedding clamp sliding rails 523, and the workpiece positioning bottom plate 525 is arranged on the hot-embedding clamp moving plate 524 and drives the workpiece positioning bottom plate 525 to move back and forth through the hot-embedding clamp electric cylinder 522. The first rotary compaction assembly 526 and the second rotary compaction assembly 527 are respectively positioned at the left side and the right side of the workpiece positioning base plate 525; the first rotary pressing assembly 526 includes a rotary pressing bracket 5261, two rotary pressing motors 5262, a workpiece positioning support block 5263, a hinged pressing bracket 5264, a hinged pressing cylinder 5265, and a workpiece positioning engagement frame 5266. The rotary pressing bracket 5261 is disposed at the left front portion of the workpiece positioning base plate 525; the front part of the rotary pressing support 5261 is provided with a plurality of workpiece limiting blocks 52611, which are convenient for better matching with the exhaust pipe through the plurality of workpiece limiting blocks 52611, thereby further preventing the exhaust pipe from moving. Two rotary pressing motors 5262 are respectively provided at the lower left side of the rear part and the upper right side of the rear part of the rotary pressing bracket 5261; the two rotary pressing motors 5262 respectively penetrate through the rotary pressing bracket 5261 to be connected with rotary pressing arms 52621, and the exhaust pipe is conveniently limited and pressed through the two rotary pressing arms 52621. The work positioning support block 5263 is disposed on the work positioning bottom plate 525, and is located on the right side of the rotary pressing bracket 5261, and the exhaust pipe is further fixed by the work positioning support block 5263. The hinged pressing bracket 5264 is provided on the workpiece positioning base plate 525 and on the rear side of the rotary pressing bracket 5261; the hinged hold down cylinder 5265 is disposed on top of the hinged hold down bracket 5264; the top of articulated cylinder 5265 that compresses tightly is connected with articulated briquetting 52651, compresses tightly the top that cylinder 5265 drove articulated briquetting 52651 and compress tightly the blast pipe through the articulated, promotes the fastness. The workpiece positioning and matching frame 5266 is arranged on the workpiece positioning bottom plate 525 and is positioned on the right rear side of the hinged pressing cylinder 5265, a workpiece positioning and matching block 52661 is arranged at the top of the workpiece positioning and matching frame 5266, and the exhaust pipe is pressed on the workpiece positioning and matching block 52661 through the hinged pressing block 52651, so that the further lifting limiting effect is achieved. The second rotary compressing assembly 527 and the first rotary compressing assembly 526 are identical in structure, and the second rotary compressing assembly 527 is used for reversely fixing a workpiece, so that two exhaust pipes can be fixed at the same time, and the hot-embedding processing efficiency is improved. A hole plugging detection cylinder 528 is arranged on the workpiece positioning bottom plate 525 and behind the workpiece positioning supporting block 5263; the hole blockage detection cylinder 528 is connected with the hole blockage detection needle 5282 through the hole blockage connection plate 5281, the hole blockage detection cylinder 528 drives the hole blockage detection needle 5282 to detect holes in the exhaust pipe, whether the holes are blocked or not is seen, and detection of the whole exhaust pipe is further improved.
As shown in fig. 6, a shrink-fit feeding module 53 is used to feed nuts. The hot-embedding feeding module 53 comprises a nut feeding support 531, a nut vibrating feeder 532, a nut conveying support 533, a nut conveying limiting block 534, a first material pushing assembly 535 and a second material pushing assembly 536; the nut feeding bracket 531 is disposed on the rear right side of the heat-caulking base 51; the nut vibration feeder 532 is arranged on the nut feeding bracket 531, and the nut conveying bracket 533 is arranged on the front side of the nut feeding bracket 531; the nut conveying limiting block 534 is arranged on the nut conveying support 533, the rear side of the nut conveying limiting block 534 is provided with a conveying inlet 5341 connected with the discharge end of the nut vibrating feeder 532, nuts are directly conveyed to the nut conveying limiting block 534 in order through the nut vibrating feeder 532, and the nut conveying efficiency is improved. The nut conveying limiting block 534 is provided with a T-shaped channel 5342, the lower portion of the T-shaped channel 5342 is communicated with the conveying inlet 5341, conveying is facilitated better through the T-shaped channel 5342, and occupied space is saved. The first pushing assembly 535 comprises a pushing cylinder 5351, a pushing slide rail 5352, a pushing moving block 5353 and a pushing rod 5354; the pushing cylinder 5351 is arranged at the right part of the nut conveying bracket 533; the pushing moving block 5353 is connected with the pushing cylinder 5351, and the pushing moving block 5353 is driven by the pushing cylinder 5351 to horizontally slide on the pushing slide rail 5352, so that the pushing efficiency is improved. The material pushing rod 5354 is arranged at the top of the material pushing moving block 5353, and the material pushing rod 5354 is connected with the bottom of the T-shaped channel 5342, so that material pushing is facilitated, and the material pushing accuracy is improved. The nut conveying limiting block 534 is provided with a limiting cover plate 5343, the nut is further prevented from sliding out through the limiting cover plate 5343, and the nut is convenient to convey better. The limiting cover 5343 is provided with a nut detection through hole, and nut detection is facilitated through the nut detector. The heating support seat 537 is connected to the front side of the nut conveying limiting block 534; the heating support base 537 is provided with a heat insulation frame 538, and the heat insulation effect is improved through the heat insulation frame 538. And a heating block 539 is arranged in the heat insulation frame 538, and the heat embedding efficiency and the heat embedding quality are further improved through the heating block 539. A heating conveying channel 5391 is arranged in the middle of the heating block 539; heating transfer passage 5391 links up with T shape passageway 5342, is convenient for heat when carrying through heating transfer passage 5391, promotes conveying efficiency and heating efficiency. The first pushing assembly 535 and the second pushing assembly 536 have the same structure, and the pushing rod 5354 of the second pushing assembly 536 is connected with the rear side of the top of the T-shaped channel 5342, so that better pushing and conveying can be facilitated.
The hot-staking module 54 is used to hot-stake the nut to the workpiece. The hot-embedding processing module 54 comprises a hot-embedding processing portal frame 541, a double-shaft electric cylinder 542, a hot-embedding processing moving plate 543, a hot-embedding lifting cylinder 544, a hot-embedding lifting plate 545, a hot-embedding guide rod 546 and a hot-embedding head 547; the hot-embedding processing gantry 541 is arranged on the hot-embedding base 51, the double-shaft electric cylinder 542 is horizontally arranged in the middle of the hot-embedding processing gantry 541, and the stability of horizontal movement is further improved through the double-shaft electric cylinder 542. The shrink-fit processing moving plate 543 is provided on the moving portion of the biaxial electric cylinder 542; the thermal insert lifting cylinder 544 is longitudinally arranged in the middle of the thermal insert processing moving plate 543 through a thermal insert lifting cylinder fixing block 5441, the thermal insert lifting cylinder 544 penetrates through the thermal insert lifting cylinder fixing block 5441 to be connected with the top of the thermal insert lifting plate 545, and the thermal insert lifting cylinder 544 drives the thermal insert lifting plate 545 to move up and down. The hot-embedded lifting plate 545 is matched with the hot-embedded lifting cylinder fixing block 5441 through a lifting guide rod, so that the hot-embedded lifting plate can be conveniently lifted and moved. The hot-inserting head 547 is arranged at the bottom of the hot-inserting lifting plate 545 through the hot-inserting guide rod 546, the nut is conveniently sucked and hot-inserted on the exhaust pipe through the hot-inserting head 547, and the hot-inserting processing efficiency is improved. The right side middle part of hot-embedding processing portal frame 541 is provided with waste material die clamping cylinder 548, if detect through the nut detector and scrap when the nut, carry the nut to waste material die clamping cylinder 548 on, will scrap the nut through waste material die clamping cylinder 548 and grasp, put into the waste material box.
During operation, the hot-stamping device 5 fixes the two exhaust pipes on the left side and the right side respectively through the first rotating and pressing component 526 and the second rotating and pressing component 527 on the hot-stamping fixture module 52, and drives the rotating and pressing arm 52621 to limit and press the exhaust pipes through the rotating and pressing motor 5262; the hinged pressing cylinder 5265 drives the hinged pressing block 52651 to press the top of the exhaust pipe tightly; the right part of the exhaust pipe is supported by a workpiece positioning support block 5263; the hole plugging detection cylinder 528 drives the hole plugging detection needle 5282 to detect the hole on the exhaust pipe; after the fixing is finished, the electric cylinder 522 of the hot-embedding clamp drives the workpiece positioning bottom plate 525 to move back and forth for positioning and move to the position below the hot-embedding processing module 54; the nuts are conveyed and fed through the nut vibration feeder 532 in the hot-embedding feeding module 53, the pushing cylinder 5351 in the first pushing assembly 535 and the second pushing assembly 536 drives the pushing rod 5354 to push the nuts into the heating conveying channel 5391 in the heating block 539 for heating and conveying, the double-shaft electric cylinder 542 in the hot-embedding processing module 54 drives the hot-embedding processing moving plate 543 to move above the nuts, the hot-embedding lifting cylinder 544 drives the hot-embedding heads 547 on the hot-embedding lifting plate 545 to suck the nuts, the nuts are hot-embedded on the exhaust pipe, and the nuts are moved to the waste clamping cylinder 548 if the nuts are scrapped.
The thermal embedding device 5 is convenient for stably limiting the exhaust pipe and improving the moving and positioning precision of the exhaust pipe through the thermal embedding clamp module 52; the nuts are automatically conveyed and fed through the hot-embedding feeding module 53, and are heated during conveying, so that the heating and conveying efficiency is improved; the precision of the hot-embedding process and the stability of the hot-embedding process are further improved by the hot-embedding processing module 54.
As shown in fig. 1 and 7, the tightening device 3 includes a tightening base plate 31, a screw feeding vibrator 32, a tightening bracket 33, a tightening rotary shaft 34, a first tightening hinge plate 35, a second tightening hinge plate 36, and a tightening rotary cylinder 30; the screw feeding vibrator 32 is arranged at the rear part of the tightening bottom plate 31; the screw feeding vibrator 32 is used for conveying and feeding screws, and screw conveying efficiency is improved. The tightening bracket 33 is arranged in the middle of the tightening bottom plate 31; the tightening rotating shaft 34 is horizontally arranged at the upper part of the tightening bracket 33 through a tightening bearing 341; the screwing rotating shaft 34 is connected with a rotating base 342; the left part of the rotating base 342 is provided with three workpiece coarse positioning blocks 37, and the three workpiece coarse positioning blocks 37 are matched with the three branch pipes 71 on the exhaust pipe. Each workpiece rough positioning block 37 is provided with a U-shaped matching groove 371, and the U-shaped matching grooves 371 are convenient for more effective limiting and fixing. The front side and the rear side of the left part of the rotating base 342 are both provided with a coarse positioning clamping cylinder 38; the thick positioning clamping cylinder 38 is connected with a thick positioning hinged pressing block 381, and the thick positioning clamping cylinder 38 drives the thick positioning hinged pressing block 381 to clamp and limit the front end and the rear end of the exhaust pipe, so that the stability during screwing is further improved. The middle part of the rotating base 342 is provided with an exhaust pipe coarse positioning supporting block 39, and the exhaust pipe is conveniently and better supported through the exhaust pipe coarse positioning supporting block 39, so that a better supporting effect is achieved. The first screwing hinged plate 35 is hinged to the right end of the screwing rotating shaft 34, the upper end of the second screwing hinged plate 36 is hinged to the first screwing hinged plate 35, the hinging effect is improved, and the transmission efficiency is further improved. The lower end of the second screwing hinge plate 36 is hinged on the screwing bottom plate 31, the screwing rotary cylinder 30 is obliquely arranged on the screwing bottom plate 31, the moving end of the screwing rotary cylinder 30 is connected with the hinged position of the first screwing hinge plate 35 and the second screwing hinge plate 36, and the rotating base 342 is driven to overturn by the screwing rotary cylinder 30. The rear side of the tightening base plate 31 is provided with a tightening bracket 311, the tightening bracket 311 is provided with a tightening device 312, the tightening device 312 is used for tightening a screw better, the tightening firmness is improved, and the turning angle is adjusted by rotating the base 342, so that the tightening efficiency and the tightening quality are improved.
In operation, the tightening device 3 performs angle adjustment by placing the three branch pipes 71 on the U-shaped engaging grooves 371 of the three workpiece coarse positioning blocks 37, engaging the first tightening hinge plate 35 and the second tightening hinge plate 36 with the tightening rotary cylinder 30 to drive the rotary base 342, feeding screws by the screw feeding vibrator 32, and tightening the screws on the nuts subjected to the heat-caulking process by the heat-caulking device 5 by the tightening device 312.
The tightening efficiency is further improved by replacing the manual tightening by the tightening device 3, and the tightening quality and the tightening firmness are further improved by the tightener 312, thereby further ensuring the sealing property of the exhaust pipe.
As shown in fig. 1 and 8, the dust removing device 4 includes a dust removing base plate 41, a dust removing assembly 42, a dust removing large opening blocking assembly 43, a dust removing front exhaust pipe bracket 44 and a dust removing middle exhaust pipe bracket 45; the dust removal assembly 42 comprises a dust removal support 421, a first dust removal limiting cylinder 422, a second dust removal limiting cylinder 423 and a dust removal butt joint block 424; the dust removing bracket 421 is arranged at the front part of the dust removing bottom plate 41; the middle of the dust removing support 421 is provided with three runway-shaped dust removing holes 4211 arranged at intervals, and the three runway-shaped dust removing holes 4211 are respectively connected with a single branch pipe 71, so that the three branch pipes 71 are respectively subjected to dust removal, and the dust removing effect is further improved. The dust removal support 421 is provided with a plurality of dust removal limiting blocks 4212, and the exhaust pipe is further limited by the dust removal limiting blocks 4212, so that the exhaust pipe is better fixed. The first dust-removing limiting cylinder 422 and the second dust-removing limiting cylinder 423 are respectively arranged at the left side and the right side of the dust-removing bracket 421; the first dust removal limiting cylinder 422 and the second dust removal limiting cylinder 423 are connected with dust removal limiting pressure arms 4221 through the dust removal support 421, and the first dust removal limiting cylinder 422 and the second dust removal limiting cylinder 423 drive the two dust removal limiting pressure arms 4221 to limit the left side and the right side of the exhaust pipe respectively. The dust removal butt-joint block 424 is arranged on the rear wall of the dust removal support 421, and the rear part of the dust removal butt-joint block 424 is connected with a dust collection interface 425 and is connected with dust collection equipment through the dust collection interface 425 for dust collection. (ii) a The dust removal front exhaust pipe bracket 44 and the dust removal middle exhaust pipe bracket 45 are respectively arranged at the front side and the rear side of the dust removal bracket 421, so that the front side and the rear side of the exhaust pipe are better supported. The dust removal large-opening plugging assembly 43 comprises a dust removal large-opening plugging bracket 431 and a dust removal large-opening plugging cylinder 432, wherein the dust removal large-opening plugging bracket 431 is arranged at the rear right part of the dust removal bottom plate 41; the dust removal large-opening plugging cylinder 432 is obliquely arranged on the dust removal large-opening plugging support 431, a dust removal plug 433 is arranged at the moving end of the dust removal large-opening plugging cylinder 432, and the dust removal plug 433 is driven to move through the dust removal large-opening plugging cylinder 432, so that the large opening 72 of the exhaust pipe is plugged.
When the dust removal device 4 works, the three branch pipes 71 of the exhaust pipe are prevented from being arranged on the dust removal limiting block 4212, the three branch pipes 71 correspond to the three runway-shaped dust removal holes 4211, and the first dust removal limiting cylinder 422 and the second dust removal limiting cylinder 423 drive the two dust removal limiting pressure arms 4221 to limit the left side and the right side of the exhaust pipe respectively; the dedusting large-opening plugging cylinder 432 drives the dedusting plug 433 to move, so that the large opening 72 of the exhaust pipe is plugged; and finally, the air is sucked through the dust suction port 425 to remove dust in the exhaust pipe.
This dust collector 4 has further promoted the stability in the dust removal process through first dust removal spacing cylinder 422 and the spacing cylinder 423 of second dust removal in the dust removal subassembly 42 to the circulation and the cleanliness of blast pipe have further been promoted through the dust absorption operation, thereby improve the exhaust effect of blast pipe.
As shown in fig. 1 and 9, the leak test apparatus 6 includes a leak test stand 61, a movable support module 62, a spring pressing module 63, a large port blocking module 64, and a side port blocking module 65; the movable support module 62 comprises a movable support slide rail 621, a movable support cylinder 622 and a movable support plate 623; the movable support plate 623 is arranged on the leak test bracket 61 through a movable support slide rail 621, and a movable support fitting frame 624 is arranged on the movable support plate 623; the movable supporting cylinder 622 is connected with one side of the movable supporting plate 623, and the movable supporting plate 623 is driven to move back and forth through the movable supporting cylinder 622, so that the moving efficiency is improved. The right side of the movable support module 62 is provided with a movable positioning cylinder 625, the movable support module 62 is prevented from moving left and right through the movable positioning cylinder 625, and further stability is improved. The spring pressing module 63 includes a spring pressing bracket 631, a spring pressing cylinder 632, a spring pressing plate 633 and four spring pressing heads 634; spring pressure support 631 sets up on leak test support 61, and spring pressure support 631 is located the top of removing support module 62, and spring pressure cylinder 632 sets up at spring pressure support 631's top, and spring pressure cylinder 632 passes spring pressure support 631 and is connected with spring pressure plate 633, drives spring pressure plate 633 through spring pressure cylinder 632 and goes up and down, the better removal location of being convenient for. The spring pressing plate 633 is matched with the spring pressing bracket 631 by moving the support guide rod, a plurality of spring pressing heads 634 are disposed at the bottom of the spring pressing plate 633, and the spring pressing heads 634 are matched with the moving support matching frame 624, so that the pressing effect is further improved by the spring pressing heads 634. The middle part of the spring pressing support 631 is also provided with a marking machine 635, and patterns or characters are marked through the marking machine 635. The large-opening blocking module 64 comprises a large-opening blocking base 641, a large-opening blocking cylinder 642 and a large-opening blocking panel 643; the large-opening blocking base 641 is arranged on the left side of the movable support module 62, and the large-opening blocking cylinder 642 is arranged on the large-opening blocking base 641; the large-opening plugging panel 643 is connected with the moving end of the large-opening plugging air cylinder 642, and the large opening of the exhaust pipe is plugged through the large-opening plugging panel 643, so that the plugging effect is improved. The side port plugging module 65 comprises a side port moving cylinder 651, a side port sliding rail 652, a side port moving plate 653, a side port plugging bracket 654, a side port plugging cylinder 655, a side port plugging cylinder 656, a small-opening plugging cylinder 657 and a small-opening plugging head 658; a side port moving cylinder 651 is provided on the left front side of the leak test bracket 61; the side port moving plate 653 is horizontally arranged on the leak test support 61 through a side port sliding rail 652, the side port moving plate 653 is connected with a side port moving cylinder 651, and the side port moving cylinder 651 drives the side port moving plate 653 to move, so that the moving efficiency is improved. The side port plugging bracket 654 is arranged on the side port moving plate 653, and the side port plugging air cylinder 655 is obliquely arranged on the top of the side port plugging bracket 654; the side port plugging cylinder body 656 is connected with the side port plugging cylinder 655 through a plugging connecting plate, and the side port plugging cylinder body 656 is driven by the side port plugging cylinder 655 to plug the side port of the exhaust pipe. The small-opening plugging cylinder 657 is arranged at the right part of the side opening moving plate 653, the small-opening plugging head 658 is connected with the small-opening plugging cylinder 657 through the small-opening connecting plate, and the small-opening plugging cylinder 657 drives the small-opening plugging head 658 to plug a small opening of the exhaust pipe.
When the device works, 3 branch pipes of the exhaust pipe are covered on the top of the movable support matching frame 624, and the exhaust pipe on the movable support plate 623 is driven to move back and forth and positioned by the movable support cylinder 622 on the movable support module 62; a spring pressing cylinder 632 on the spring pressing module 63 drives four spring pressing heads 634 on a spring pressing plate 633 to press and fix 3 branch pipes of the exhaust pipe; a large-opening plugging cylinder 642 in the large-opening plugging module 64 drives a large-opening plugging panel 643 to plug a large opening of the exhaust pipe; a side port moving cylinder 651 in the side port plugging module 65 drives a side port moving plate 653 to perform horizontal moving positioning, and a side port plugging cylinder 655 drives a side port plugging cylinder 656 to plug a side port of the exhaust pipe; the small-opening plugging cylinder 657 drives the small-opening plugging head 658 to plug the small opening of the exhaust pipe, and the gas is conveyed inwards to detect whether the gas leaks or not after the pipe openings are all plugged.
The leakage testing device 6 facilitates accurate movement positioning of the exhaust pipe and improves movement efficiency through the movable support module 62; the exhaust pipe is conveniently fixed and pressed through the spring pressing module 63, so that the stability in the test process is improved; each pipe orifice of the exhaust pipe is blocked by the large-orifice blocking module 64 and the side-orifice blocking module 65, so that the detection precision and the detection precision are further improved.
A detection method of automobile exhaust pipe detection equipment sequentially comprises the following steps: the exhaust pipe is clamped and fixed through the flow detection device 1, so that the flow detection is carried out through the flow detector; the cold inserting supporting clamp assembly in the cold inserting device 2 is used for clamping and fixing, and the cold inserting pressing operation is realized through the cold inserting spring pressing assembly 23; secondly, clamping and fixing the exhaust pipe through a hot-embedding clamp module 52 in the hot-embedding device 5, conveying and feeding the nuts through a hot-embedding feeding module 53, and hot-embedding the nuts onto the exhaust pipe through a hot-embedding processing module 54; (iii) feeding the screws by means of the screw feeding vibrator 32 in the tightening device 3, tightening the screws onto the nuts by means of the tightener 312; fourthly, the dust in the exhaust pipe is removed through a dust removing device 4; forward and backward positioning is performed by the movable support module 62 in the leak test apparatus 6; and (V) the exhaust pipe is pressed and fixed through a spring pressing module 63, the opening of the exhaust pipe is sealed through a large opening sealing module 64 and a side opening sealing module 65, and final leakage detection is carried out through a leakage detector.
The equipment is convenient for effectively carrying out flow test on the exhaust pipe through the flow detection device 1, and the exhaust pipe is prevented from shaking or shifting in the test process, so that the stability and the accuracy of flow detection are further improved; the stability of the exhaust pipe fixation is further improved through the cold-inserting supporting clamp assembly 22 in the cold-inserting device 2, and the cold-inserting processing of the exhaust pipe is further improved through the matching of the cold-inserting spring pressing assembly 23 and the cold-inserting supporting clamp assembly 22, so that the anti-leakage effect is further improved; the exhaust pipe is conveniently and stably limited and the moving and positioning precision of the exhaust pipe is conveniently improved through the hot-embedding clamp module 52 in the hot-embedding device 5; the nuts are automatically conveyed and fed through the hot-embedding feeding module 53, and are heated during conveying, so that the heating and conveying efficiency is improved; the hot-embedding processing module 54 further improves the precision of hot-embedding processing and the stability of hot-embedding processing; the tightening device 3 replaces manual tightening, the tightening efficiency is further improved, and the tightening quality and the tightening firmness are further improved through the tightening device 312, so that the sealing performance of the exhaust pipe is further ensured; the stability in the dust removing process is further improved through the first dust removing limiting cylinder 422 and the second dust removing limiting cylinder 423 in the dust removing assembly 42 in the dust removing device 4, and the circulation and the cleanliness of the exhaust pipe are further improved through the dust collecting operation, so that the exhaust effect of the exhaust pipe is improved; the exhaust pipe can be accurately moved and positioned and the moving efficiency can be improved by moving the support module 62 in the leakage testing device 6; the exhaust pipe is conveniently fixed and pressed through the spring pressing module 63, so that the stability in the test process is improved; each pipe orifice of the exhaust pipe is blocked by the large-orifice blocking module 64 and the side-orifice blocking module 65, so that the detection precision and the detection precision are further improved.
To sum up, the technological effect of this patent is that promote the leak protection leakproofness of blast pipe and prevent blockking up the effect, further promotes effect and the detection quality that the blast pipe detected.

Claims (9)

1. The automobile exhaust pipe detection equipment is characterized by comprising a flow detection device (1), a cold plug device (2), a hot-inserting device (5), a screwing device (3), a dust removal device (4), a leakage test device (6) and a control system; the discharge end of the flow detection device (1) is connected with the feed end of the cold plug-in device (2); the flow detection device (1) is used for detecting the flow of the exhaust pipe; the cold plug device (2) is used for cold plug processing of the exhaust pipe; the feeding end of the hot-inserting device (5) is connected with the discharging end of the cold-inserting device (2), and the hot-inserting device (5) is used for hot-inserting the nuts; the feeding end of the screwing device (3) is connected with the discharging end of the hot-embedding device (5), and the screwing device (3) is used for screwing a screw onto the exhaust pipe; the feeding end of the dust removal device (4) is connected with the discharging end of the tightening device (3), and the dust removal device (4) is used for removing dust in the exhaust pipe; the feed end of the leakage testing device (6) is connected with the discharge end of the dust removal device (4), and the leakage testing device (6) is used for detecting the leakage condition of the exhaust pipe;
the hot-embedding device (5) comprises a hot-embedding base (51), a hot-embedding clamp module (52), a hot-embedding feeding module (53) and a hot-embedding processing module (54); the hot-embedding clamp module (52) comprises three hot-embedding clamp brackets (521), a hot-embedding clamp electric cylinder (522), two hot-embedding clamp sliding rails (523), a hot-embedding clamp moving plate (524), a workpiece positioning bottom plate (525), a first rotating pressing assembly (526) and a second rotating pressing assembly (527); the three hot-embedding clamp brackets (521) are arranged on the hot-embedding base (51) in parallel at intervals, and the electric cylinder (522) of the hot-embedding clamp is arranged at the top of the hot-embedding clamp bracket (521) in the middle; the two hot-embedded clamp sliding rails (523) are respectively arranged at the tops of the hot-embedded clamp brackets (521) at the two sides; the hot-embedding fixture moving plate (524) is arranged on the hot-embedding fixture electric cylinder (522) and the two hot-embedding fixture slide rails (523), and the workpiece positioning bottom plate (525) is arranged on the hot-embedding fixture moving plate (524); the first rotating compaction component (526) and the second rotating compaction component (527) are respectively positioned at the left side and the right side of the workpiece positioning bottom plate (525); the first rotary pressing component (526) comprises a rotary pressing bracket (5261), two rotary pressing motors (5262), a workpiece positioning support block (5263), a hinged pressing bracket (5264), a hinged pressing cylinder (5265) and a workpiece positioning matching frame (5266); the rotary pressing bracket (5261) is arranged at the left front part of the workpiece positioning bottom plate (525); a workpiece limiting block (52611) is arranged at the front part of the rotary pressing bracket (5261); the two rotary pressing motors (5262) are respectively arranged at the left lower side of the rear part and the right upper side of the rear part of the rotary pressing bracket (5261); the two rotary pressing motors (5262) are respectively connected with rotary pressing arms (52621) through the rotary pressing bracket (5261); the workpiece positioning support block (5263) is arranged on the workpiece positioning bottom plate (525) and is positioned on the right side of the rotary pressing bracket (5261); the hinged pressing bracket (5264) is arranged on the workpiece positioning bottom plate (525) and is positioned at the rear side of the rotary pressing bracket (5261); the hinged pressing cylinder (5265) is arranged at the top of the hinged pressing bracket (5264); the top of the hinged compaction cylinder (5265) is connected with a hinged pressing block (52651); the workpiece positioning and matching frame (5266) is arranged on the workpiece positioning bottom plate (525) and is positioned on the right rear side of the hinged pressing cylinder (5265), and a workpiece positioning and matching block (52661) is arranged at the top of the workpiece positioning and matching frame (5266); the second rotary pressing component (527) and the first rotary pressing component (526) have the same structure, and the second rotary pressing component (527) is used for reversely fixing the workpiece; a hole through blocking detection cylinder (528) is arranged on the workpiece positioning bottom plate (525) and positioned at the rear side of the workpiece positioning supporting block (5263); the hole blockage detection cylinder (528) is connected with a hole blockage detection needle (5282) through a hole blockage connection plate (5281); the hot-embedded feeding module (53) is used for conveying and feeding nuts; the hot-embedding processing module (54) is used for hot-embedding the nut on the workpiece.
2. The exhaust pipe detection device of the automobile according to claim 1, wherein the flow detection device (1) comprises a flow detection bottom plate (11), a flow detection bracket (12), a three-port plugging component (13), a front detection fitting frame (14) and a rear detection fitting frame (15); the flow detection bracket (12) is arranged at the front part of the flow detection bottom plate (11); a plurality of flow detection limiting blocks (121) are arranged on the front wall of the flow detection bracket (12); the left side and the right side of the rear part of the flow detection bracket (12) are both provided with flow detection limiting cylinders (122); the two flow detection limiting cylinders (122) penetrate through the flow detection support (12) and are connected with flow detection limiting pressure arms (123); three exhaust pipe matching through holes (124) are arranged between the two flow detection limiting cylinders (122) on the flow detection support (12) at intervals; the three small-opening plugging components (13) are arranged on the flow detection bottom plate (11) and are positioned at the rear side of the flow detection support (12); the three-small-opening plugging component (13) comprises three-small-opening plugging air cylinders (131), three-small-opening plugging slide rails (132) and three-small-opening plugging moving plates (133); the three small-opening plugging cylinders (131) are arranged on the flow detection bottom plate (11), the rear parts of the three small-opening plugging moving plates (133) are connected with the front parts of the three small-opening plugging cylinders (131), the three small-opening plugging moving plates (133) move back and forth through the three small-opening plugging sliding rails (132), and three plugging cylinders (134) are arranged on the three small-opening plugging moving plates (133) at intervals; each plugging cylinder (134) is connected with a plugging head (135), and the three plugging heads (135) are matched with the three exhaust pipe matching through holes (124); the front detection matching frame (14) and the rear detection matching frame (15) are respectively arranged at the front part and the rear part of the flow detection bottom plate (11).
3. The exhaust pipe detection device of the automobile as claimed in claim 1, wherein the cold plug device (2) comprises a cold plug base plate (21), a cold plug support clamp assembly (22) and a cold plug spring pressing assembly (23); the cold insertion supporting clamp assembly (22) comprises a cold insertion supporting frame (221), a plurality of cold insertion jacking cylinders (222) and a plurality of cold insertion pressure head modules; the cold plug support frame (221) is arranged on the cold plug bottom plate (21); a plurality of cold insertion holes (2211) are alternately arranged at the top of the cold insertion support frame (221) front and back; the cold-plugging jacking cylinders (222) are alternately arranged on the bottom plate of the cold-plugging support frame (221) from front to back; the top of each cold plug jacking cylinder (222) is connected with a cold plug jacking sleeve (2221); the middle part of the cold plug top head sleeve (2221) is provided with an adapter (2222); the cold insertion pressure head modules are alternately arranged on the top plate of the cold insertion support frame (221) in a front-back manner and correspond to the cold insertion jacking cylinder (222); the cold insertion pressure head module comprises a cold insertion pressure head fixing seat (223) and a cold insertion pressure head (224); the cold inserting pressure head fixing seat (223) is arranged on the bottom surface of a top plate of the cold inserting support frame (221), the cold inserting pressure head (224) is arranged on the top of the cold inserting pressure head fixing seat (223), the top of the cold inserting pressure head (224) is located in the cold inserting hole (2211), and the bottom of the cold inserting pressure head (224) is connected with a cold inserting displacement sensor (225); the cold-plug spring pressing assembly (23) comprises a cold-plug spring pressing bracket (231), a cold-plug spring pressing cylinder (232), a cold-plug spring pressing plate (233) and a plurality of cold-plug spring pressing heads (234); the cold-inserting spring pressing support (231) is arranged on the cold-inserting bottom plate (21) and is positioned above the cold-inserting supporting clamp assembly (22), the cold-inserting spring pressing cylinder (232) is arranged in the center of the top of the cold-inserting spring pressing support (231), and the cold-inserting spring pressing cylinder (232) penetrates through the cold-inserting spring pressing support (231) to be connected with the cold-inserting spring pressing plate (233); the cold inserting spring pressing heads (234) are alternately arranged at the bottom of the cold inserting spring pressing plate (233) in a front-back manner, and the cold inserting spring pressing heads (234) correspond to the cold inserting holes (2211).
4. The exhaust pipe detection device of the automobile as claimed in claim 1, wherein the hot-insert feeding module (53) comprises a nut feeding bracket (531), a nut vibrating feeder (532), a nut conveying bracket (533), a nut conveying limiting block (534), a first pushing assembly (535) and a second pushing assembly (536); the nut feeding bracket (531) is arranged on the right rear side of the hot-embedding base (51); the nut vibrating feeder (532) is arranged on the nut feeding support (531), and the nut conveying support (533) is arranged on the front side of the nut feeding support (531); the nut conveying limiting block (534) is arranged on the nut conveying support (533), a conveying inlet (5341) connected with the discharge end of the nut vibrating feeder (532) is formed in the rear side of the nut conveying limiting block (534), a T-shaped channel (5342) is formed in the nut conveying limiting block (534), and the lower portion of the T-shaped channel (5342) is communicated with the conveying inlet (5341); the first pushing assembly (535) comprises a pushing cylinder (5351), a pushing slide rail (5352), a pushing moving block (5353) and a pushing rod (5354); the pushing cylinder (5351) is arranged at the right part of the nut conveying bracket (533); the pushing moving block (5353) is connected with the pushing cylinder (5351), and the pushing moving block (5353) horizontally slides through the pushing slide rail (5352); the material pushing rod (5354) is arranged at the top of the material pushing moving block (5353), and the material pushing rod (5354) is connected with the bottom of the T-shaped channel (5342); the nut conveying limiting block (534) is provided with a limiting cover plate (5343), and the limiting cover plate (5343) is provided with a nut detection through hole; the front side of the nut conveying limiting block (534) is connected with a heating supporting seat (537); a heat insulation frame (538) is arranged on the heating support seat (537); a heating block (539) is arranged in the heat insulation frame (538), and a heating conveying channel (5391) is arranged in the middle of the heating block (539); the heating conveying channel (5391) is connected with the T-shaped channel (5342); the first pushing assembly (535) and the second pushing assembly (536) are identical in structure, and a pushing rod (5354) in the second pushing assembly (536) is connected with the rear side of the top of the T-shaped channel (5342).
5. The exhaust pipe detection device of claim 1, wherein the hot-insert processing module (54) comprises a hot-insert processing gantry (541), a double-shaft electric cylinder (542), a hot-insert processing moving plate (543), a hot-insert lifting cylinder (544), a hot-insert lifting plate (545), a hot-insert guide rod (546) and a hot-insert head (547); the hot-embedding processing portal frame (541) is arranged on the hot-embedding base (51), and the double-shaft electric cylinder (542) is horizontally arranged in the middle of the hot-embedding processing portal frame (541); the hot-embedding processing moving plate (543) is arranged on a moving part of the double-shaft electric cylinder (542); the hot-embedding lifting cylinder (544) is longitudinally arranged in the middle of the hot-embedding processing moving plate (543) through a hot-embedding lifting cylinder fixing block (5441); the hot-embedding lifting cylinder (544) penetrates through the hot-embedding lifting cylinder fixing block (5441) to be connected with the top of the hot-embedding lifting plate (545), and the hot-embedding lifting plate (545) is matched with the hot-embedding lifting cylinder fixing block (5441) through the lifting guide rod; the hot-embedding head (547) is arranged at the bottom of the hot-embedding lifting plate (545) through the hot-embedding guide rod (546); and a waste clamping cylinder (548) is arranged in the middle of the right side of the hot-embedding processing portal frame (541).
6. The exhaust pipe inspection apparatus according to claim 1, wherein the tightening device (3) comprises a tightening base plate (31), a screw feeding vibrator (32), a tightening bracket (33), a tightening rotary shaft (34), a first tightening hinge plate (35), a second tightening hinge plate (36) and a tightening rotary cylinder (30); the screw feeding vibrator (32) is arranged at the rear part of the tightening bottom plate (31); the screw feeding vibrator (32) is used for conveying and feeding screws; the tightening bracket (33) is arranged in the middle of the tightening bottom plate (31); the tightening rotating shaft (34) is horizontally arranged at the upper part of the tightening bracket (33) through a tightening bearing (341); the screwing rotating shaft (34) is connected with a rotating base (342); three workpiece coarse positioning blocks (37) are arranged at the left part of the rotating base (342), and a U-shaped matching groove (371) is formed in each workpiece coarse positioning block (37); the front side and the rear side of the left part of the rotating base (342) are both provided with a coarse positioning clamping cylinder (38); the coarse positioning clamping cylinders (38) are connected with coarse positioning hinged pressing blocks (381); the middle part of the rotating base (342) is provided with an exhaust pipe coarse positioning supporting block (39); the first screwing hinge plate (35) is hinged to the right end of the screwing rotating shaft (34), the upper end of the second screwing hinge plate (36) is hinged to the first screwing hinge plate (35), the lower end of the second screwing hinge plate (36) is hinged to the screwing bottom plate (31), the screwing rotary cylinder (30) is obliquely arranged on the screwing bottom plate (31), and the moving end of the screwing rotary cylinder (30) is connected with the hinged position of the first screwing hinge plate (35) and the second screwing hinge plate (36); the rear side of the tightening bottom plate (31) is provided with a tightening bracket (311), and the tightening bracket (311) is provided with a tightening device (312).
7. The automobile exhaust pipe detection device according to claim 1, wherein the dust removal device (4) comprises a dust removal bottom plate (41), a dust removal assembly (42), a dust removal large opening blocking assembly (43), a dust removal front exhaust pipe support (44) and a dust removal middle exhaust pipe support (45); the dust removal assembly (42) comprises a dust removal support (421), a first dust removal limiting cylinder (422), a second dust removal limiting cylinder (423) and a dust removal butt joint block (424); the dust removing bracket (421) is arranged at the front part of the dust removing bottom plate (41); the middle part of the dust removing support (421) is provided with three runway-shaped dust removing holes (4211) which are arranged at intervals, and the dust removing support (421) is provided with a plurality of dust removing limiting blocks (4212); the first dust removal limiting cylinder (422) and the second dust removal limiting cylinder (423) are respectively arranged at the left side and the right side of the dust removal support (421); the first dust removal limiting cylinder (422) and the second dust removal limiting cylinder (423) penetrate through the dust removal support (421) and are connected with a dust removal limiting pressure arm (4221); the dust removal butt joint block (424) is arranged on the rear wall of the dust removal support (421), and the rear part of the dust removal butt joint block (424) is connected with a dust collection interface (425); the dust removal front exhaust pipe bracket (44) and the dust removal middle exhaust pipe bracket (45) are respectively arranged on the front side and the rear side of the dust removal bracket (421); the dust removal large-opening blocking assembly (43) comprises a dust removal large-opening blocking bracket (431) and a dust removal large-opening blocking cylinder (432), and the dust removal large-opening blocking bracket (431) is arranged at the rear right part of the dust removal bottom plate (41); the dust removal large-opening plugging air cylinder (432) is obliquely arranged on the dust removal large-opening plugging support (431), and a dust removal plug (433) is arranged at the moving end of the dust removal large-opening plugging air cylinder (432).
8. The exhaust pipe detection device of the automobile as claimed in claim 1, wherein the leak test device (6) comprises a leak test bracket (61), a movable support module (62), a spring compression module (63), a large opening blocking module (64) and a side opening blocking module (65); the movable support module (62) comprises a movable support slide rail (621), a movable support cylinder (622) and a movable support plate (623); the movable support plate (623) is arranged on the leakage test bracket (61) through a movable support slide rail (621), and a movable support matching frame (624) is arranged on the movable support plate (623); the movable supporting cylinder (622) is connected with one side of the movable supporting plate (623); a movable positioning cylinder (625) is arranged on the right side of the movable support module (62); the spring pressing module (63) comprises a spring pressing support (631), a spring pressing cylinder (632), a spring pressing plate (633) and a plurality of spring pressing heads (634); the spring pressing support (631) is arranged on the leakage test support (61), the spring pressing support (631) is positioned above the movable support module (62), the spring pressing cylinder (632) is arranged at the top of the spring pressing support (631), the spring pressing cylinder (632) penetrates through the spring pressing support (631) to be connected with the spring pressing plate (633), the spring pressing plate (633) is matched with the spring pressing support (631) through a movable support guide rod, the spring pressing heads (634) are arranged at the bottom of the spring pressing plate (633), and the spring pressing heads (634) are matched with the movable support matching frame (624); a marking machine (635) is further arranged in the middle of the spring pressing support (631); the large-opening blocking module (64) comprises a large-opening blocking base (641), a large-opening blocking cylinder (642) and a large-opening blocking panel (643); the large-opening blocking base (641) is arranged on the left side of the movable support module (62), and the large-opening blocking cylinder (642) is arranged on the large-opening blocking base (641); the large-opening plugging panel is connected with the moving end of a large-opening plugging cylinder (642); the side port plugging module (65) comprises a side port moving cylinder (651), a side port sliding rail (652), a side port moving plate (653), a side port plugging support (654), a side port plugging cylinder (655), a side port plugging cylinder body (656), a small-opening plugging cylinder (657) and a small-opening plugging head (658); the side port moving cylinder (651) is arranged at the left front side of the leakage test bracket (61); the side port moving plate (653) is horizontally arranged on the leakage test bracket (61) through a side port sliding rail (652), and the side port moving plate (653) is connected with a side port moving cylinder (651); the side port plugging bracket (654) is arranged on the side port moving plate (653), and the side port plugging air cylinder (655) is obliquely arranged at the top of the side port plugging bracket (654); the side port plugging cylinder body (656) is connected with the side port plugging cylinder (655) through a plugging connecting plate; the small-opening plugging air cylinder (657) is arranged at the right part of the side opening moving plate (653), and the small-opening plugging head (658) is connected with the small-opening plugging air cylinder (657) through the small-opening connecting plate.
9. A method for detecting a leak in an exhaust pipe of an automobile, characterized by using the apparatus for detecting an exhaust pipe of an automobile according to claim 1, sequentially through the steps of:
the exhaust pipe is clamped and fixed through the flow detection device (1), so that the flow detection is carried out through the flow detector; the cold insertion supporting clamp assembly in the cold insertion device (2) is used for clamping and fixing, and the cold insertion pressing operation is realized through the cold insertion spring pressing assembly (23);
the exhaust pipe is clamped and fixed through a hot-inserting clamp module (52) in a hot-inserting device (5), the nuts are conveyed and fed through a hot-inserting feeding module (53), and the nuts are hot-inserted onto the exhaust pipe through a hot-inserting processing module (54);
feeding screws by a screw feeding vibrator (32) in the tightening device (3), tightening the screws onto nuts by a tightener (312);
dust in the exhaust pipe is removed through a dust removal device (4); positioning back and forth by means of a mobile support module (62) in the leak testing device (6);
the exhaust pipe is pressed and fixed by a spring pressing module (63), and the opening of the exhaust pipe is blocked by a large opening blocking module (64) and a side opening blocking module (65), so that the final leakage detection is performed by a leakage detector.
CN201910789834.8A 2019-08-26 2019-08-26 Automobile exhaust pipe detection device and automobile exhaust pipe leakage detection method Active CN110530652B (en)

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