CN107387262B

CN107387262B - Automatic carburetor detector

Info

Publication number: CN107387262B
Application number: CN201710729060.0A
Authority: CN
Inventors: 薛美英
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-12
Filing date: 2017-08-23
Publication date: 2023-06-27
Anticipated expiration: 2037-08-23
Also published as: CN207131501U; CN107387262A

Abstract

The invention relates to an automatic carburetor detection machine, which comprises a machine seat, a carburetor positioning tool, an oil supply system, a negative pressure system, an air suction port, a screwing rack device, a main rotating measuring needle device, an idle screw device and a full-open flow adjusting device, wherein the carburetor positioning tool is arranged on the machine seat and used for positioning and fixing a carburetor, the oil supply system is used for supplying oil into the carburetor and realizing carburetor flow detection, the negative pressure system is used for measuring the negative pressure of the carburetor, the air suction port of the negative pressure system is correspondingly matched with an air outlet cavity port of the carburetor, the screwing rack device is used for screwing an upper screwing rack of the carburetor, the main rotating measuring needle device is used for rotating and adjusting a main measuring needle of the carburetor, the idle screw device is used for rotating and adjusting an idle screw on the carburetor, and the full-open flow screw on the carburetor. The invention provides an automatic carburetor detection machine for realizing automatic carburetor detection and debugging, which improves the production efficiency and qualification rate of a carburetor.

Description

Automatic carburetor detector

Technical Field

The invention relates to the technical field of carburetors, in particular to detection equipment for debugging and detecting a carburetor.

Background

A carburetor (carburetor) is a mechanical device that mixes a proportion of gasoline with air under the vacuum created by the operation of an engine. The carburetor acts as a precision mechanical device that utilizes the kinetic energy of the intake air flow to effect atomization of the gasoline. The carburetor is required to be measured for full-open negative pressure and full-open flow before leaving the factory, and the idle flow and idle negative pressure are detected and debugged, so that the product is ensured to meet the requirements of customers after leaving the factory, but the carburetor is not provided with equipment for detecting and debugging, so that the production efficiency and the precision of the product are affected.

Disclosure of Invention

The invention aims at: in order to overcome the defects in the prior art, the invention provides an automatic carburetor detection machine for realizing automatic carburetor detection and debugging.

In order to achieve the above purpose, the present invention provides the following technical solutions:

an automatic carburetor detection machine is characterized in that: comprises a machine seat and a carburetor positioning tool which is arranged on the machine seat and used for positioning and fixing a carburetor,

an oil supply system for supplying oil to the carburetor and realizing flow detection of the carburetor,

the negative pressure system is used for measuring the negative pressure of the carburetor, the air suction port of the negative pressure system is correspondingly matched with the air outlet cavity port of the carburetor,

a wrenching bracket device for wrenching the upper rotating bracket of the carburetor,

a rotary main metering pin device for rotary regulating main metering pin on carburetor,

an idle screw rotating device for rotating and adjusting an idle screw on a carburetor,

a fully-open flow regulator for rotationally regulating fully-open flow screw on carburetor.

The working principle of the carburetor automatic detector of the invention is as follows: the carburetor is arranged on a carburetor positioning tool, an oil supply system supplies oil to the carburetor, then a rotating frame device is pulled to a full-open position of a choke valve (plunger), preparation is made for full-open negative pressure and full-open flow detection, the oil flow at the moment is detected, full-open flow detection is achieved, and when the full-open flow does not meet the requirement, a full-open flow adjusting screw on the carburetor is rotated by a full-open flow adjusting device, so that full-open flow adjustment is achieved; the negative pressure system sucks air in the carburetor and detects the negative pressure value at the moment so as to achieve full-open negative pressure detection; the suspension pulling device resets the upper rotating frame of the carburetor, prepares for the detection of idle negative pressure and idle flow, the oil supply system supplies oil to the carburetor, detects the oil flow at the moment, achieves idle flow detection, and rotates a main metering orifice on the carburetor of the main metering pin device to achieve idle flow regulation when the idle flow does not meet the requirement; the negative pressure system is used for sucking air in the carburetor, detecting the negative pressure value at the moment, detecting the idle negative pressure, and screwing an idle screw on the carburetor by the idle screw device when the idle negative pressure is not in accordance with the requirement, so that the idle negative pressure is regulated.

Preferably, the base is also provided with an oil cup extruding device for extruding the oil cup on the carburetor, the oil cup extruding device comprises an oil cup extruding cylinder and a transversely extending extruding rod, the extruding rod is arranged on a telescopic arm of the oil cup extruding cylinder, and the extruding rod is provided with an oil cup extruding end. Under the structural design, the oil cup on the carburetor is extruded, so that the oil supply system can supply oil to the oil cup better, the oil in the oil cup of the carburetor is ensured to be consistent with the oil in the oil supply system, namely, the oil change in the oil cup of the carburetor is detected initially, and the reliable detection result is ensured; and the oil squeezing cup device has simple structure and reliable operation.

Preferably, the turning frame device comprises a turning frame turning driver, a driving disc and an eccentric shifting rod, the turning frame turning driver drives the driving disc to rotate, the eccentric shifting rod is eccentrically arranged on the driving disc, and the driving disc is matched with a turning frame pushing mechanism for driving the turning end of the eccentric shifting rod to extend into and withdraw from the corresponding position of the carburetor turning frame. Under the structural design, the driving disc rotates, the eccentric deflector rod is eccentrically arranged, and the eccentric deflector rod swings around the rotation central shaft of the driving wheel, so that the rotating frame is stirred, the structure is simple and compact, and the rotating frame pushing mechanism enables the eccentric deflector rod to enter and exit the corresponding position of the carburetor rotating frame.

Preferably, the rotating frame poking driver is a pneumatic corner cylinder, a power output gear is mounted on an output shaft of the pneumatic corner cylinder, the driving disc is a driven gear, the power output gear is meshed with the driven gear, the poking rotating frame propelling mechanism comprises a sliding seat which is in guiding sliding fit on the machine base, the sliding seat slides along the direction that the poking end of the eccentric poking rod stretches into and withdraws from the corresponding position of the carburetor rotating frame, the rotating frame poking driver and the driving disc are both assembled on the sliding seat, and the sliding seat is matched with a sliding driver for driving the sliding seat to slide. Under this structural design, adopt gear cooperation, the transmission is reliable and stable, the installation of being convenient for arranges, and dials the spiral frame propulsion mechanism simple structure.

Preferably, the main metering pin rotating device comprises a main metering pin rotating shaft for rotating a main metering pin on the carburetor and a main metering pin adjusting driver for driving the main metering pin rotating shaft to rotate, the main metering pin rotating shaft comprises a driving shaft and a main metering pin rotating shaft main body, one end of the main metering pin rotating shaft main body is in axial telescopic fit with the driving shaft and in linkage fit with the rotating direction, the other end of the main metering pin rotating shaft main body is an operating end for rotating the main metering pin, the driving shaft is connected with the main metering pin adjusting driver, and the main metering pin rotating shaft main body is matched with a main metering pin adjusting propulsion mechanism for driving the operating end of the main metering pin rotating shaft main body to extend into and withdraw from the corresponding position of the main metering pin of the carburetor. Under this structural design, the rotation regulation of main graduated flask adopts the flexible, rotation direction linkage's in axial driving shaft and main graduated flask spin main part cooperation, makes things convenient for main graduated flask spin main part to adjust main graduated flask, makes things convenient for the installation arrangement of main graduated flask adjustment driver simultaneously.

Preferably, the dial rotating frame propelling mechanism is also a main measuring needle adjusting propelling mechanism for driving the main measuring needle rotating shaft main body to stretch, the driving disc and the main measuring needle rotating shaft are coaxially arranged, a yielding hole for the main measuring needle rotating shaft main body to pass through is formed in the middle of the driving disc, and the main measuring needle rotating shaft main body is fixedly connected to the sliding seat. Under this structural design, because the position of main gauge needle and spiral frame is near, above-mentioned compact structure, job stabilization nature is good.

Preferably, the idle screw rotating device comprises an idle screw rotating shaft for rotating an idle screw on a carburetor and an idle adjustment driver for driving the idle screw rotating shaft to rotate, the idle screw rotating shaft comprises a driving shaft and an idle screw rotating shaft main body, one end of the idle screw rotating shaft main body is in axial telescopic fit with the driving shaft and in linkage fit with the rotating direction, the other end of the idle screw rotating shaft main body is an operating end for rotating the idle screw, the driving shaft is connected with the idle adjustment driver, and the idle screw rotating shaft main body is matched with an idle adjustment propulsion mechanism for driving the operating end of the idle screw rotating shaft main body to extend into and withdraw from the corresponding position of the idle screw of the carburetor. Under this structural design, idle screw's rotation regulation adopts the drive shaft of scalable, rotation direction linkage in the axial and idle screw spin main part cooperation, makes things convenient for idle screw spin main part to adjust idle screw, makes things convenient for idle screw adjustment driver's installation arrangement simultaneously.

Preferably, the fully-opened flow adjusting device comprises a fully-opened flow screw rotating shaft for rotating a fully-opened flow adjusting screw on the carburetor and a fully-opened flow adjusting driver for driving the fully-opened flow screw rotating shaft to rotate, the fully-opened flow screw rotating shaft comprises a power input shaft and a fully-opened flow screw rotating shaft main body, one end of the fully-opened flow screw rotating shaft main body is in axial telescopic fit with the power input shaft and in linkage fit with the rotating direction, the other end of the fully-opened flow screw rotating shaft main body is an operating end for rotating the fully-opened flow screw, the power input shaft is connected with the fully-opened flow adjusting driver, and the fully-opened flow screw rotating shaft main body is matched with a fully-opened flow adjusting propelling mechanism for driving the operating end of the fully-opened flow screw rotating shaft main body to stretch into and withdraw from a corresponding position of the fully-opened flow adjusting screw of the carburetor. Under this structural design, the rotation regulation of full-open flow adopts the power input axle of scalable, rotation direction linkage in the axial and the cooperation of full-open flow screw spool main part, makes things convenient for full-open flow screw spool main part to adjust full-open flow, makes things convenient for the installation arrangement of full-open flow screw adjustment driver simultaneously.

Preferably, the carburetor positioning tool comprises a first chuck and a second chuck which are correspondingly matched, the first chuck and the second chuck are oppositely arranged, an air suction port of the negative pressure system is arranged on the first chuck, the second chuck is connected with a clamping driving cylinder in linkage, and the clamping driving cylinder drives the second chuck to be close to and far away from the first chuck, and the second chuck is provided with an air ventilation cavity which is correspondingly matched with an air passage port of the carburetor. Under the structural design, the structure is simple and compact.

The invention is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of an automatic carburetor inspection machine according to an embodiment of the present invention;

FIG. 2 is a top view of an automatic carburetor inspection machine according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a fully-opened flow rate adjusting device according to an embodiment of the present invention;

FIG. 4 is a schematic view of a structure of an idle screw driving device according to an embodiment of the present invention;

FIG. 5 is a schematic view of a toggle swing frame device and a rotary main gauge device according to an embodiment of the present invention;

FIG. 6 is a second schematic structural view of a toggle turret apparatus and a rotary main gauge apparatus according to an embodiment of the present invention;

the machine base 1 is provided with a machine seat,

the carburetor positioning fixture 2, the first chuck 21, the air suction port 211, the second chuck 22, the ventilation cavity 221, the clamping driving cylinder 23,

a turning frame device 3, a turning frame turning driver 31, a driving disk 32, a yielding hole 321, an eccentric shifting lever 33, a turning frame pushing mechanism 34, a sliding seat 341, a sliding driver 342, a power output gear 35,

a rotary main measuring needle device 4, a main measuring needle rotating shaft 41, a driving shaft 411, a main measuring needle rotating shaft main body 412, a main measuring needle rotating shaft main body front section 4121, a main measuring needle rotating shaft main body rear section 4122, a main measuring needle rotating shaft main body buffer spring 4123, a main measuring needle adjusting driver 42, a main measuring needle adjusting driving motor 421, a main measuring needle adjusting driving gear pair 422,

an idle screw device 5, an idle screw rotation shaft 51, a driving shaft 511, an idle screw rotation shaft main body 512, an idle screw rotation shaft main body front section 5121, an idle screw rotation shaft main body rear section 5122, an idle screw rotation shaft main body buffer spring 5123, an idle adjustment driver 52, an idle screw adjustment driving motor 521, an idle screw adjustment driving gear pair 522, an idle adjustment driving mechanism 53, a guide holder 531, an idle screw rotation shaft main body driving cylinder 532,

a full-open flow rate adjusting device 6, a full-open flow rate screw rotating shaft 61, a power input shaft 611, a full-open flow rate screw rotating shaft main body 612, a full-open flow rate adjusting screw rotating shaft main body front section 6121, a full-open flow rate adjusting screw rotating shaft main body rear section 6122, a full-open flow rate adjusting driver 62, a full-open flow rate screw adjusting driving motor 621, a full-open flow rate screw adjusting transmission gear pair 622, a full-open flow rate adjusting propelling mechanism 63, a linkage seat 631, a full-open flow rate adjusting screw rotating shaft main body propelling cylinder 632,

the oil cup device 7, the oil cup pressing cylinder 71, the pressing rod 72, the oil cup pressing head 721,

the qualified marking device 8, a marking cylinder 81 and a marking head 82.

Detailed Description

Referring to fig. 1 to 6, the invention discloses an automatic carburetor detection machine,

comprises a machine base 1 and a carburetor positioning tool 2 which is arranged on the machine base 1 and used for positioning and fixing a carburetor,

a wrenching bracket device 3 for wrenching the upper bracket of the carburetor,

a rotary main metering pin device 4 for rotary adjusting the main metering pin on the carburetor,

an idle screw rotation device 5 for rotating and adjusting an idle screw on the carburetor,

a fully-open flow regulator 6 for rotating and regulating the fully-open flow screw on the carburetor.

The oil supply system supplies oil when detecting the carburetor, and generally comprises an oil storage tank, an oil supply pipeline and a recovery oil tank oil return pipeline, wherein the oil supply pipeline is provided with a flow detection sensor for realizing flow detection, and the recovery oil tank oil return pipeline comprises an oil receiving disc, a filter and a recovery oil tank. The negative pressure system is used for sucking air when the carburetor detects, and generally comprises a vacuum pump, an air suction pipeline and a sonic nozzle box, wherein a negative pressure sensor is arranged on the air suction pipeline to detect negative pressure.

Further, the base 1 is further provided with an oil cup extruding device 7 for extruding an oil cup on a carburetor, the oil cup extruding device 7 comprises an oil cup extruding cylinder 71 and a transversely extending extruding rod 72, the extruding rod 72 is installed on a telescopic arm of the oil cup extruding cylinder 71, and the extruding rod 72 is provided with an oil cup extruding end 721. The oil cup on the carburetor (the oil cup on the carburetor is a compressible plastic oil cup) is extruded by detection, so that residual oil in the oil cup is extruded and discharged, oil in an oil supply system conveniently enters the oil cup to realize oil change, the oil supply system is better used for supplying oil to the oil cup and ensuring that the oil in the oil cup of the carburetor is consistent with the oil in the oil supply system, namely, the oil change in the oil cup of the carburetor is detected initially, and the reliable detection result is ensured.

The turning frame device 3 comprises a turning frame turning driver 31, a driving disc 32 and an eccentric shifting rod 33, the turning frame turning driver 31 drives the driving disc 32 to rotate, the eccentric shifting rod 33 is eccentrically arranged on the driving disc 32, and the driving disc 32 is matched with a turning frame pushing mechanism 34 for driving the turning end of the eccentric shifting rod 33 to extend into and withdraw from the corresponding position of the carburetor turning frame. The eccentric deflector rod is eccentrically arranged when the driving disc rotates, and the eccentric deflector rod swings around the rotation central shaft of the driving wheel, so that the rotating frame is stirred, the structure is simple and compact, and the rotating frame pushing mechanism enables the eccentric deflector rod to enter and exit the corresponding position of the carburetor rotating frame. The rotating frame stirring driver 31 is a pneumatic corner cylinder, a power output gear 35 is mounted on an output shaft of the pneumatic corner cylinder, the driving disc 32 is a driven gear, the power output gear 35 is meshed with the driven gear, the stirring frame propelling mechanism 34 comprises a sliding seat 341 which is in guiding sliding fit on the machine base 1, a guide rail is arranged on the machine base 1, the sliding seat is matched on the guide rail to realize guiding sliding fit, the sliding seat 341 slides along the direction that a stirring end of the eccentric stirring rod 33 stretches into and withdraws from a corresponding position of the carburetor rotating frame, the rotating frame stirring driver 31 and the driving disc 32 are both assembled on the sliding seat 341, and the sliding seat 341 is matched with a sliding driver 342 for driving the sliding seat 341 to slide. The gear is adopted for matching, the transmission is stable and reliable, the installation and arrangement are convenient, and the rotating frame pushing mechanism is simple in structure. The rotating frame poking driver 31 can also adopt a motor, an air cylinder, a rocker arm and the like. The driving disk can be not only designed by adopting a gear according to the rotating frame to stir the driver, but also can be a common disk-shaped body or a belt pulley or a chain wheel and the like. The rotating frame propelling mechanism is used for driving the stirring end of the eccentric stirring rod to enter and exit the corresponding position of the carburetor rotating frame, and can also be designed directly for a small cylinder, the eccentric stirring rod is arranged on a small cylinder arm, and the small cylinder is arranged on a driving disc; a sliding seat design may also be employed, and the sliding driver 342 may be a pneumatic cylinder (in this embodiment, a pneumatic cylinder design is employed), a motor coupled with a rack and pinion mechanism or a nut-and-screw mechanism, or the like.

The main metering pin device 4 comprises a main metering pin rotating shaft 41 for rotating a main metering pin on a carburetor and a main metering pin adjusting driver 42 for driving the main metering pin rotating shaft 41 to rotate, the main metering pin rotating shaft 41 comprises a driving shaft 411 and a main metering pin rotating shaft main body 412, one end of the main metering pin rotating shaft main body 412 is in axial telescopic fit with the driving shaft 411 and in linkage fit with the rotating direction, the other end of the main metering pin rotating shaft main body 412 is an operating end for rotating the main metering pin, the driving shaft 411 is connected with the main metering pin adjusting driver 42, and the main metering pin rotating shaft main body 412 is matched with a main metering pin adjusting propelling mechanism for driving the operating end of the main metering pin rotating shaft main body 412 to extend into and withdraw from the corresponding position of the main metering pin of the carburetor. The main measuring needle rotating shaft main part one end and the axial telescopic cooperation of driving shaft and rotation direction linkage cooperation, the rotation regulation of main measuring needle adopts the axial telescopic, rotation direction linkage's driving shaft and main measuring needle rotating shaft main part cooperation, makes things convenient for main measuring needle rotating shaft main part to adjust main measuring needle, makes things convenient for the installation arrangement of main measuring needle adjustment driver simultaneously. The main metering pin rotating shaft main body 412 is in axial telescopic fit with the driving shaft 411, and the driving shaft 411 is provided with a sleeve, the side wall of the sleeve is provided with an axially extending strip-shaped through hole slot, the main metering pin rotating shaft main body is provided with a point position hole, the point position hole is provided with a positioning guide screw, the positioning guide screw is fixed on the main metering pin rotating shaft main body 412, the positioning guide screw extends into the strip-shaped through hole slot to realize circumferential linkage, and the positioning guide screw slides along the strip-shaped through hole slot to realize axial telescopic fit of the main metering pin rotating shaft main body and the driving shaft; of course, the two shaft bodies can be telescopic in the axial direction, and various structures capable of being linked in the circumferential direction exist in the prior art, such as a spline shaft, a spline sleeve, the matching of a flat sleeve and a flat shaft, and the like, which are conventional technical means in the mechanical field, and are not listed one by one. The main measuring pin adjusting driver 42 is used for driving the driving shaft to rotate, and is commonly that the main measuring pin adjusting driving motor 421 realizes transmission through the main measuring pin adjusting transmission gear pair 422, or can realize transmission through a transmission belt assembly by adopting a motor, and of course, a mechanism that linear driving is converted into rotary motion through a transmission mechanism can also be realized. In order to ensure reliable and soft matching and combination of the main metering needle spindle body 412 and the main metering needle on the carburetor, the main metering needle spindle body 412 comprises a main metering needle spindle body front section 4121 and a main metering needle spindle body rear section 4122, the main metering needle spindle body front section 4121 and the main metering needle spindle body rear section 4122 are axially telescopic matched and are in linkage matched in rotation direction, and a main metering needle spindle body buffer spring 4123 is arranged between the main metering needle spindle body front section 4121 and the main metering needle spindle body rear section 4122.

In order to simplify the structure and make the movement of the mechanism reliable, the dial rotating frame pushing mechanism 34 is also a main measuring needle adjusting pushing mechanism for driving the main measuring needle rotating shaft main body 412 to stretch and retract, the driving disc 32 and the main measuring needle rotating shaft 41 are coaxially arranged, a yielding hole 321 for the main measuring needle rotating shaft main body 412 to pass through is arranged in the middle of the driving disc 32, and the main measuring needle rotating shaft main body 412 is fixedly connected to the sliding seat 341. Because the main measuring needle is close to the rotating frame, the structure is compact, and the working stability is good.

The idle screw screwing device 5 comprises an idle screw rotation shaft 51 for screwing an idle screw on a carburetor and an idle adjustment driver 52 for driving the idle screw rotation shaft 51 to rotate, the idle screw rotation shaft 51 comprises a driving shaft 511 and an idle screw rotation shaft main body 512, one end of the idle screw rotation shaft main body 512 is in axial telescopic fit with the driving shaft 511 and in linkage fit with the rotating direction, the other end of the idle screw rotation shaft main body 512 is an operating end for screwing the idle screw, the driving shaft 511 is connected with the idle adjustment driver 52, and the idle screw rotation shaft main body 511 is matched with an idle adjustment propulsion mechanism 53 for driving the operating end of the idle screw rotation shaft main body 512 to extend into and withdraw from a corresponding position of the idle screw of the carburetor. The rotation adjustment of the idle screw adopts the coordination of a driving shaft which is telescopic in the axial direction and linked in the rotation direction and the idle screw rotating shaft main body, thereby being convenient for the idle screw rotating shaft main body to adjust the idle screw and simultaneously being convenient for the installation and arrangement of an idle screw adjusting driver. The structure in this embodiment can be adopted, where the driving shaft 511 and the idle screw rotating shaft main body 512 are in axial telescopic fit and the rotation direction linkage fit is substantially the axial telescopic fit and the rotation direction linkage fit of two shafts, a sleeve is provided on the driving shaft 511, a strip-shaped through hole groove extending axially is provided on the side wall of the sleeve, a point location hole is provided on the idle screw rotating shaft main body 512, a positioning guide screw is provided on the point location hole and is fixed on the idle screw rotating shaft main body 512, the positioning guide screw stretches into the strip-shaped through hole groove to realize the circumferential linkage, and the positioning guide screw slides along the strip-shaped through hole groove to realize the axial telescopic fit of the idle screw rotating shaft main body and the driving shaft; of course, the two shaft bodies can be telescopic in the axial direction, and various structures capable of being linked in the circumferential direction exist in the prior art, such as a spline shaft, a spline sleeve, the matching of a flat sleeve and a flat shaft, and the like, which are conventional technical means in the mechanical field, and are not listed one by one. The idle screw adjusting driver 52 is used for driving the driving shaft to rotate, and is commonly used for driving the idle screw adjusting driving motor 521 through an idle screw adjusting transmission gear pair 522, or driving can be realized through a transmission belt assembly by adopting the motor, and of course, a mechanism that linear driving is converted into rotary motion through a transmission mechanism can also be realized. In order to ensure reliable and soft matching and combination of the idle screw spindle body and the idle screw on the carburetor, the idle screw spindle body 512 comprises an idle screw spindle body front section 5121 and an idle screw spindle body rear section 5122, the idle screw spindle body front section 5121 and the idle screw spindle body rear section 5122 are axially telescopic matched and are in linkage matching in rotation direction, and an idle screw spindle body buffer spring 5123 is arranged between the idle screw spindle body front section 5121 and the idle screw spindle body rear section 5122. The idle adjustment propulsion mechanism 53 substantially drives the operation end of the idle screw spindle body 512 to enter and exit from the corresponding position of the idle screw of the carburetor, and includes a guide holder 531, the guide holder 531 is slidably engaged with the engine base 1, the idle screw spindle body 512 (when the idle screw spindle body 512 is designed for the front section 5121 of the idle screw spindle body and the rear section 5122 of the idle screw spindle body, the guide holder 531 and the rear section 5122 of the idle screw spindle body are connected) is fixedly connected with the guide holder 531, a guide rail is provided on the engine base 1, the guide holder 531 is engaged with the guide rail to realize guide sliding engagement, the guide holder 531 slides along the direction of the operation end of the idle screw spindle body 512 extending into and exiting from the corresponding position of the idle screw of the carburetor, the guide holder 531 is engaged with an idle screw spindle body propulsion cylinder 532 for driving the guide holder 531 to reciprocate, and the driving of the guide holder 531 is not limited to the cylinder, but also other structures in the prior art, such as a motor engaged with a gear rack mechanism, etc. can be adopted.

The fully-opened flow rate adjusting device 6 comprises a fully-opened flow rate screw rotating shaft 61 for rotating a fully-opened flow rate adjusting screw on a carburetor and a fully-opened flow rate adjusting driver 62 for driving the fully-opened flow rate screw rotating shaft 61 to rotate, the fully-opened flow rate screw rotating shaft 61 comprises a power input shaft 611 and a fully-opened flow rate screw rotating shaft main body 612, one end of the fully-opened flow rate screw rotating shaft main body 612 is in axial telescopic fit with the power input shaft 611 and is in linkage fit with the rotating direction, the other end of the fully-opened flow rate screw rotating shaft main body 612 is an operating end for rotating the fully-opened flow rate screw, the power input shaft 611 is connected with the fully-opened flow rate adjusting driver 62, and the fully-opened flow rate screw rotating shaft main body 612 is matched with a fully-opened flow rate adjusting pushing mechanism 63 for driving the operating end of the fully-opened flow rate screw rotating shaft main body 612 to extend into and out of the corresponding position of the fully-opened flow rate adjusting screw of the carburetor. The rotary adjustment of the full-open flow adopts the cooperation of the power input shaft which is telescopic in the axial direction and is linked in the rotary direction and the full-open flow screw rotary shaft main body, so that the full-open flow screw rotary shaft main body is convenient to adjust the full-open flow, and meanwhile, the installation and arrangement of the full-open flow screw adjustment driver are convenient. The structure in this embodiment can be adopted, where the power input shaft 611 and the full-open flow screw rotating shaft main body 612 are in axial telescopic fit and the rotation direction linkage fit is substantially the axial telescopic fit and the rotation direction linkage fit of two shafts, the power input shaft 611 is provided with a sleeve, the side wall of the sleeve is provided with a strip-shaped through hole slot extending axially, the full-open flow screw rotating shaft main body 612 is provided with a point position hole, the point position hole is provided with a positioning guide screw, the positioning guide screw is fixed on the full-open flow screw rotating shaft main body 612, the positioning guide screw extends into the strip-shaped through hole slot to realize circumferential linkage, and the positioning guide screw slides along the strip-shaped through hole slot to realize axial telescopic fit of the full-open flow screw rotating shaft main body and the power input shaft; of course, the two shaft bodies can be telescopic in the axial direction, and various structures capable of being linked in the circumferential direction exist in the prior art, such as a spline shaft, a spline sleeve, the matching of a flat sleeve and a flat shaft, and the like, which are conventional technical means in the mechanical field, and are not listed one by one. The fully-opened flow screw adjusting driver is used for driving the power input shaft to rotate, and is commonly used for realizing transmission through a fully-opened flow screw adjusting driving motor 621 and a fully-opened flow screw adjusting transmission gear pair 622, or can realize transmission through a transmission belt assembly by adopting a motor, and of course, a mechanism for realizing conversion into rotary motion through a transmission mechanism by linear driving can also be realized. In order to ensure that the full-opening flow rate adjusting screw rotating shaft main body 612 is reliably matched with the full-opening flow rate adjusting screw on the carburetor and is soft in combination, the full-opening flow rate adjusting screw rotating shaft main body 612 comprises a full-opening flow rate adjusting screw rotating shaft main body front section 6121 and a full-opening flow rate adjusting screw rotating shaft main body rear section 6122, the full-opening flow rate adjusting screw rotating shaft main body front section 6121 and the full-opening flow rate adjusting screw rotating shaft main body rear section 6122 are axially telescopic matched and are in linkage matched in rotating direction, and a full-opening flow rate adjusting screw rotating shaft main body buffer spring 6123 is arranged between the full-opening flow rate adjusting screw rotating shaft main body front section 6121 and the full-opening flow rate adjusting screw rotating shaft main body rear section 6122. The fully-opened flow adjusting and propelling mechanism 63 is substantially configured to drive the operation end of the fully-opened flow adjusting screw spindle body 612 to enter and exit the corresponding position of the fully-opened flow adjusting screw of the carburetor, and includes a linkage seat 631, the linkage seat 631 is slidably engaged with the seat 1 in a guiding manner, the fully-opened flow adjusting screw spindle body 612 (when the fully-opened flow adjusting screw spindle body 612 is configured to be a front section 6121 of the fully-opened flow adjusting screw spindle body and a rear section 6122 of the fully-opened flow adjusting screw spindle body, the linkage seat 631 is connected to the rear section 6122 of the fully-opened flow adjusting screw spindle body), and is fixedly connected to the linkage seat 631, a guide rail is provided on the seat 1, the linkage seat 631 is engaged with the guide rail to realize a guiding and sliding engagement, the linkage seat 631 slides along a direction in which the operation end of the fully-opened flow adjusting screw spindle body 612 extends into and exits the corresponding position of the carburetor, the linkage seat 631 is engaged with a fully-opened flow adjusting screw spindle body propelling cylinder 632 that drives the linkage seat 631 to reciprocate, and the linkage seat 631 is not limited to be a cylinder, and other structures in the prior art, such as a motor is engaged with a gear mechanism.

The carburetor positioning tool 2 comprises a first chuck 21 and a second chuck 22 which are correspondingly matched, the first chuck 21 and the second chuck 22 are oppositely arranged, an air suction port 211 of the negative pressure system is arranged on the first chuck 21, namely an air hole which is correspondingly matched with an upper air passage of the carburetor is formed in the first chuck 21, the second chuck 22 is connected with a clamping driving air cylinder 23 which drives the second chuck 22 to be close to and far away from the first chuck 21 in a linkage manner, and the second chuck 22 is provided with an air ventilation cavity 221 which is correspondingly matched with the air passage of the carburetor. The carburetor positioning tool realizes the clamping and fixing of the carburetor, simultaneously realizes the matching of the carburetor and the air suction port of the negative pressure system, the air passage of the carburetor and the ventilation cavity, and the air suction port pumps air from the air passage of the carburetor and carries out negative pressure detection through an air pressure detection device (a pressure gauge or an air pressure detection sensor), so that the carburetor positioning tool has a simple and compact structure.

The automatic carburetor detection machine is also provided with a qualified marking device 8, wherein the qualified marking device 8 comprises a marking cylinder 81 and a marking head 82, and the marking head 82 is fixed on a telescopic arm of the marking cylinder 81.

The working principle of the carburetor automatic detector of the invention is as follows: the carburetor is arranged on a carburetor positioning tool, the oil cup extruding device extrudes the oil cup to realize that the oil in the oil cup of the carburetor is replaced to be consistent with that in an oil supply system, and the oil supply system supplies oil to the carburetor; the turning frame device turns the turning frame to the full-open position of the choke valve (plunger), prepares for the detection of full-open negative pressure and full-open flow, detects the oil flow at the moment, achieves the full-open flow detection, and when the full-open flow does not meet the requirement, the full-open flow adjusting device turns a full-open flow adjusting screw on the carburetor to achieve the full-open flow adjustment; the negative pressure system sucks air in the carburetor and detects the negative pressure value at the moment so as to achieve full-open negative pressure detection; the suspension pulling device resets the upper rotating frame of the carburetor, prepares for the detection of idle negative pressure and idle flow, the oil supply system supplies oil to the carburetor, detects the oil flow at the moment, achieves idle flow detection, and rotates a main metering orifice on the carburetor of the main metering pin device to achieve idle flow regulation when the idle flow does not meet the requirement; the negative pressure system is used for sucking air in the carburetor, detecting the negative pressure value at the moment, detecting the idle negative pressure, and screwing an idle screw on the carburetor by the idle screw device when the idle negative pressure is not in accordance with the requirement, so that the idle negative pressure is regulated. Each detection data is detected and calibrated according to the data stored in the system as a reference.

Claims

1. An automatic carburetor detection machine is characterized in that: comprises a machine seat and a carburetor positioning tool which is arranged on the machine seat and used for positioning and fixing a carburetor,

a fully-opened flow adjusting device for rotating and adjusting a fully-opened flow screw on a carburetor,

the machine seat is also provided with an oil cup extruding device for extruding the oil cup on the carburetor, the oil cup extruding device comprises an oil cup extruding cylinder and a transversely extending extruding rod, the extruding rod is arranged on a telescopic arm of the oil cup extruding cylinder, the extruding rod is provided with an oil cup extruding end head,

the main metering needle device comprises a main metering needle rotating shaft for rotating a main metering needle on a carburetor and a main metering needle adjusting driver for driving the main metering needle rotating shaft to rotate, the main metering needle rotating shaft comprises a driving shaft and a main metering needle rotating shaft main body, one end of the main metering needle rotating shaft main body is in axial telescopic fit with the driving shaft and in linkage fit with the rotating direction, the other end of the main metering needle rotating shaft main body is an operating end of the main metering needle, the driving shaft is connected with the main metering needle adjusting driver, and the main metering needle rotating shaft main body is matched with a main metering needle adjusting propelling mechanism for driving the operating end of the main metering needle rotating shaft main body to extend into and withdraw from the corresponding position of the main metering needle of the carburetor.

2. The carburetor automatic detector according to claim 1, wherein: the turning frame device comprises a turning frame turning driver, a driving disc and an eccentric shifting rod, wherein the turning frame turning driver drives the driving disc to rotate, the eccentric shifting rod is eccentrically arranged on the driving disc, and the driving disc is matched with a turning frame pushing mechanism for driving the turning end of the eccentric shifting rod to extend into and withdraw from the corresponding position of the carburetor turning frame.

3. The carburetor automatic detector according to claim 2, wherein: the rotating frame stirring driver is a pneumatic corner cylinder, a power output gear is mounted on an output shaft of the pneumatic corner cylinder, the driving disc is a driven gear, the power output gear is meshed with the driven gear, the stirring frame pushing mechanism comprises a sliding seat which is in guiding sliding fit on the machine base, the sliding seat slides along the direction that the stirring end of the eccentric stirring rod stretches into and withdraws from the corresponding position of the carburetor rotating frame, the rotating frame stirring driver and the driving disc are both assembled on the sliding seat, and the sliding seat is matched with a sliding driver for driving the sliding seat to slide.

4. The carburetor automatic detector according to claim 3, wherein: the main metering needle device comprises a main metering needle rotating shaft for rotating a main metering needle on a carburetor and a main metering needle adjusting driver for driving the main metering needle rotating shaft to rotate, the main metering needle rotating shaft comprises a driving shaft and a main metering needle rotating shaft main body, one end of the main metering needle rotating shaft main body is in axial telescopic fit with the driving shaft and in linkage fit with the rotating direction, the other end of the main metering needle rotating shaft main body is an operating end of the main metering needle, the driving shaft is connected with the main metering needle adjusting driver, and the main metering needle rotating shaft main body is matched with a main metering needle adjusting propelling mechanism for driving the operating end of the main metering needle rotating shaft main body to extend into and withdraw from the corresponding position of the main metering needle of the carburetor.

5. The automatic carburetor detection machine according to claim 4, wherein: the dial rotating frame propelling mechanism is also a main measuring needle adjusting propelling mechanism for driving the main measuring needle rotating shaft main body to stretch out and draw back, the driving disc is coaxially arranged with the main measuring needle rotating shaft, a abdication hole for the main measuring needle rotating shaft main body to pass through is arranged in the middle of the driving disc, and the main measuring needle rotating shaft main body is fixedly connected to the sliding seat.

6. The carburetor automatic detector according to claim 1, wherein: the idle screw rotating device comprises an idle screw rotating shaft for rotating an idle screw on a carburetor and an idle adjustment driver for driving the idle screw rotating shaft to rotate, the idle screw rotating shaft comprises a driving shaft and an idle screw rotating shaft main body, one end of the idle screw rotating shaft main body is in axial telescopic fit with the driving shaft and is in linkage fit with the rotating direction, the other end of the idle screw rotating shaft main body is an operating end for rotating the idle screw, the driving shaft is connected with the idle adjustment driver, and the idle screw rotating shaft main body is matched with an idle adjustment propelling mechanism for driving the operating end of the idle screw rotating shaft main body to extend into and withdraw from the corresponding position of the idle screw of the carburetor.

7. The carburetor automatic detector according to claim 1, wherein: the fully-opened flow adjusting device comprises a fully-opened flow screw rotating shaft for rotating a fully-opened flow adjusting screw on a carburetor and a fully-opened flow adjusting driver for driving the fully-opened flow screw rotating shaft to rotate, the fully-opened flow screw rotating shaft comprises a power input shaft and a fully-opened flow screw rotating shaft main body, one end of the fully-opened flow screw rotating shaft main body is in axial telescopic fit with the power input shaft and in linkage fit with the rotating direction, the other end of the fully-opened flow screw rotating shaft main body is an operating end for rotating the fully-opened flow screw, the power input shaft is connected with the fully-opened flow adjusting driver, and the fully-opened flow screw rotating shaft main body is matched with a fully-opened flow adjusting propelling mechanism for driving the operating end of the fully-opened flow screw rotating shaft main body to stretch in and withdraw from the corresponding position of the fully-opened flow adjusting screw of the carburetor.

8. The carburetor automatic detector according to claim 1, wherein: the carburetor positioning tool comprises a first chuck and a second chuck which are correspondingly matched, the first chuck and the second chuck are oppositely arranged, an air suction port of the negative pressure system is arranged on the first chuck, the second chuck is connected with a clamping driving cylinder which drives the second chuck to be close to and far away from the first chuck in a linkage manner, and the second chuck is provided with an air ventilation cavity which is correspondingly matched with an air passage port of the carburetor.