CN111103496B

CN111103496B - Sparking plug electrification detection device

Info

Publication number: CN111103496B
Application number: CN202010058917.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Shengda Electric Co ltd
Current assignee: SHENGDA ELECTRIC Co.,Ltd.
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-01-22
Anticipated expiration: 2040-01-19
Also published as: CN111103496A

Abstract

The invention discloses a spark plug electrification detection device, a transmission mechanism is arranged in a machine body, a detection mechanism is arranged at the right end of the transmission mechanism, a conveying mechanism is arranged below the detection mechanism, a transmission mechanism is arranged at the left end of the conveying mechanism, the transmission mechanism comprises a first driving cavity positioned at the upper part of the machine body, a first limiting block is fixedly arranged on the upper end wall in the first driving cavity, a second limiting block fixedly connected with the upper end wall of the first driving cavity is arranged at the right end of the first limiting block, the first limiting block and the second limiting block are rotatably provided with a crankshaft extending leftwards, the upper end mechanism clamps the spark plug and releases the spark plug after moving rightwards to move in place for detection, then the spark plug rolls automatically through the inclined plate, and the inclined plate is controlled to move up and down for classified transportation, so that the safety is greatly improved, the energy consumption is saved, and the detection efficiency is improved.

Description

Sparking plug electrification detection device

Technical Field

The invention relates to the technical field of spark plugs, in particular to a spark plug electrification detection device.

Background

Spark plugs were installed on the side or top of the engine, and earlier spark plugs were connected to the distributor by cylinder wiring, and in recent decades, the engines on cars were essentially modified to have the ignition coil directly connected to the spark plug. The working voltage of the spark plug is at least 10000V, the high voltage is generated by 12V electricity by an ignition coil and then is transmitted to the spark plug, so the detection of the electrification of the spark plug is particularly important, the traditional detection is too complex, the energy consumption is too large, the small machine is not safe enough by manual detection, and the efficiency is low.

Disclosure of Invention

Aiming at the technical defects, the invention provides a spark plug electrification detection device which can overcome the defects.

The invention relates to a spark plug electrification detection device, wherein a transmission mechanism is arranged in a machine body, a detection mechanism is arranged at the right end of the transmission mechanism, a conveying mechanism is arranged below the detection mechanism, a transmission mechanism is arranged at the left end of the conveying mechanism, the transmission mechanism comprises a first driving cavity positioned at the upper part of the machine body, a first limiting block is fixedly arranged on the upper end wall in the first driving cavity, a second limiting block fixedly connected with the upper end wall of the first driving cavity is arranged at the right end of the first limiting block, a crankshaft extending leftwards is rotatably arranged between the first limiting block and the second limiting block, a sleeve is fixed at the bent part of the crankshaft, the lower end of the sleeve is hinged with a swing rod, the crankshaft extends leftwards and is in power connection with a first motor fixed on the left end wall of the first driving cavity, a first belt pulley fixed on the crankshaft is arranged at the right, first belt pulley power is connected with first belt, first belt lower extreme power is connected with the second belt pulley, the second belt pulley right-hand member be equipped with fixed mounting in first limiting plate on the wall of first drive chamber rear end, first limiting plate right-hand member be equipped with fixed mounting in second limiting plate on the wall of first drive chamber rear end, rotate between first limiting plate and the second limiting plate and install the reciprocal lead screw that extends left, reciprocal lead screw extend left with second belt pulley fixed connection, reciprocal lead screw is in partial screw-thread fit between first limiting plate and the second limiting plate has the lead screw piece, lead screw piece front end is fixed with slidable mounting in the second limiting plate and the catch bar that extends right.

Preferably, the detection mechanism comprises a first fixed block which is positioned at the right end of the second limit plate and is fixedly connected with the front end wall and the rear end wall of the first drive cavity, the right end of the first fixed block is provided with an opening, a movable cavity is arranged in the first fixed block, the movable cavity is communicated with the opening, a first sliding block is arranged in the movable cavity, third limit blocks which are in sliding fit with the front end wall and the rear end wall of the movable cavity are symmetrically arranged around the first sliding block, the push rod extends rightwards into the movable cavity and is fixedly connected with the first sliding block, first sliding grooves are symmetrically arranged around the first sliding block, sliding columns are closely and slidably matched in the first sliding grooves, clamping rods which extend rightwards are fixed at the rear ends of the sliding columns, two clamping blocks which are arranged leftwards and rightwards are arranged on the inner sides of the clamping rods, and a second fixed block which is fixedly connected with the front end wall and the rear end, a second driving cavity with an upward opening and communicated with the first driving cavity is arranged in the second fixing block, first sliding rods fixed on the front end wall and the rear end wall of the second driving cavity are symmetrically arranged in the second driving cavity, second sliding blocks extending out of the second fixing block upwards are symmetrically arranged on the first sliding rods in a sliding manner, a movable block is arranged at the upper end of each second sliding block in a sliding manner, a movable groove for the clamping rods to slide up and down is formed in each movable block, a first spring wound on the surface of each first sliding rod is arranged between the second sliding blocks in the second fixing block, an inclined block with an inclined plane at the inner side end face is fixed on the inner side of each second sliding block, a lower pressing block with inclined planes at the front end face and the rear end face is arranged between the inclined blocks in a sliding fit manner, a pressure block is fixed at the upper end of each lower pressing block, and a connecting block is fixed at the upper end, the upper end of the connecting block is hinged to the oscillating rod, the left end of the pressure block is fixedly provided with a connecting block which is vertically symmetrical relative to the clamping rod, the left end of the connecting block is fixedly provided with a pushing block which pushes the clamping rod to move up and down, the lower end of the clamping rod is provided with a detector which is fixed on the lower end wall of the first driving cavity, the right end of the detector is provided with a buffer cushion which is fixed on the lower end wall of the first driving cavity, the upper end surface of the buffer cushion is an inclined surface, the right end of the first driving cavity is communicated with a working cavity with an upward opening, the first driving cavity is internally provided with an inductor which is fixed on the upper end wall of the first driving cavity, the working cavity is internally provided with a first air cylinder which is fixed on the lower end wall of the first driving cavity, the first air cylinder is.

Preferably, the conveying mechanism comprises a conveying cavity which is located at the lower end of the first driving cavity and is communicated with the upper end and the lower end of the first driving cavity, the lower end of the conveying cavity is communicated with a third driving cavity with a left opening, a second air cylinder fixed on the lower end wall of the third driving cavity is arranged in the third driving cavity, a rack is in sliding fit with the left end of the second air cylinder, a push rod is fixed at the left end of the rack, a gear meshed with the rack is arranged at the upper end of the push rod, the gear is fixed on a first rotating shaft rotatably arranged in the third driving cavity, a guide rod fixed on the first rotating shaft is arranged at the front end of the gear, a first bevel gear fixed on the first rotating shaft is arranged at the front end of the guide rod, a second bevel gear is meshed with the left end of the first bevel gear, a supporting block is in sliding fit with the lower ends of the push rod, the second axis of rotation with connecting plate normal running fit, be equipped with the opening in the second axis of rotation left and with the second sliding tray of third drive chamber intercommunication, be equipped with in the second sliding tray rather than right end wall fixed connection's second spring, second spring left end fixedly connected with second slide bar, the second slide bar with second axis of rotation spline fit, the second slide bar left end is fixed with the transportation piece, transportation piece rear end with the push rod cooperation, the symmetry is fixed with the transportation pole about the transportation piece left end, the transportation pole inboard has the turning block through torsional spring normal running fit, transportation pole inboard surface is equipped with the recess that supplies the spark plug location.

Preferably, the transmission mechanism comprises a spark plug located at the left end of the transport rod, the lower end of the spark plug is symmetrically provided with carrying platforms for carrying the front end and the rear end of the spark plug, the carrying platforms are provided with arc-shaped grooves for placing the spark plug, the carrying platforms are fixed on a second belt, third belt pulleys are symmetrically arranged in the second belt in a left-right mode and are in power fit with the second belt pulleys, the third belt pulleys are fixed on a third rotating shaft which is rotatably installed in the front end wall and the rear end wall of the third driving cavity, and the rear end of the third rotating shaft on the right side is in power connection with a.

The beneficial effects are that: the invention has simple structure and simple and convenient operation, only needs to put the spark plug to be detected, the machine stops the spark plug in the machine by limiting rotation of the spark plug due to the middle protruding part of the gravity spark plug, simultaneously is clamped by the upper end mechanism, moves right and then loosens to enable the spark plug to move in place for detection, then enables the spark plug to roll by itself through the inclined plate, controls the inclined plate to move up and down for classified transportation, greatly improves the safety, saves the energy consumption and improves the detection efficiency.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a spark plug energization detecting device according to the present invention;

FIG. 2 is a schematic view of the structure at A-A in FIG. 1 according to an exemplary embodiment of the present invention;

FIG. 3 is a schematic structural diagram at B-B in FIG. 1 according to an exemplary embodiment of the present invention;

FIG. 4 is a schematic structural diagram at C-C in FIG. 1, according to an embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The spark plug electrification detection device comprises a machine body 10, a transmission mechanism is arranged in the machine body 10, a detection mechanism is arranged at the right end of the transmission mechanism, a conveying mechanism is arranged below the detection mechanism, a transmission mechanism is arranged at the left end of the conveying mechanism, the transmission mechanism comprises a first driving cavity 16 positioned at the upper part of the machine body 10, a first limiting block 12 is fixedly arranged on the upper end wall in the first driving cavity 16, a second limiting block 15 fixedly connected with the upper end wall of the first driving cavity 16 is arranged at the right end of the first limiting block 12, a crankshaft 13 extending leftwards is rotatably arranged between the first limiting block 12 and the second limiting block 15, a sleeve 14 is fixed on the bent part of the crankshaft 13, a swing rod 56 is hinged to the lower end of the sleeve 14, the crankshaft 13 extends leftwards and is in power connection with a first motor 64 fixed on the left end wall of the first driving cavity 16, the right end of the first motor 64 is provided with a first belt pulley 11 fixed on the crankshaft 13, the first belt pulley 11 is in power connection with a first belt 63, the lower end of the first belt 63 is in power connection with a second belt pulley 57, the right end of the second belt pulley 57 is provided with a first limit plate 48 fixedly arranged on the rear end wall of the first driving cavity 16, the right end of the first limit plate 48 is provided with a second limit plate 62 fixedly arranged on the rear end wall of the first driving cavity 16, a reciprocating screw 49 extending leftwards is rotatably arranged between the first limit plate 48 and the second limit plate 62, the reciprocating screw rod 49 extends leftwards and is fixedly connected with the second belt pulley 57, a screw rod block 47 is in threaded fit with the part of the reciprocating screw rod 49 between the first limit plate 48 and the second limit plate 62, the front end of the screw rod block 47 is fixed with a push rod 79 which is slidably mounted in the second limit plate 62 and extends rightwards.

Beneficially, the detection mechanism includes a first fixed block 61 located at the right end of the second limiting plate 62 and fixedly connected with the front and rear end walls of the first driving cavity 16, the right end of the first fixed block 61 is provided with an opening, a movable cavity 50 is provided in the first fixed block 61, the movable cavity 50 is communicated with the opening, a first sliding block 60 is provided in the movable cavity 50, third limiting blocks 78 in sliding fit with the front and rear end walls of the movable cavity 50 are symmetrically provided in front and rear of the first sliding block 60, the push rod 79 extends rightwards to the movable cavity 50 and is fixedly connected with the first sliding block 60, first sliding grooves 59 are symmetrically provided in the first sliding block 60 in front and rear, sliding columns 51 are closely sliding fit in the first sliding grooves 59, clamping rods 53 extending rightwards are fixed at the rear ends of the sliding columns 51, two clamping blocks 52 arranged leftwards and rightwards are provided on the inner sides of the clamping rods 53, the right end of the first fixed block 61 is provided with a second fixed block 72 fixedly connected with the front and rear end walls of the first driving cavity 16, the second fixed block 72 is internally provided with a second driving cavity 74 with an upward opening and communicated with the first driving cavity 16, the second driving cavity 74 is internally and symmetrically provided with first sliding rods 75 fixed on the front and rear end walls of the second driving cavity 74, the first sliding rods 75 are symmetrically and slidably provided with second sliding blocks 77 extending upwards out of the second fixed block 72, the upper end of each second sliding block 77 is slidably provided with a movable block 73, the movable block 73 is internally provided with a movable groove 83 for the clamping rod 53 to slide up and down, a first spring 76 wound on the surface of the first sliding rod 75 is arranged between the second sliding blocks 77 in the second fixed block 72, and the inner side of the second sliding block 77 is fixedly provided with an inclined block 80 with an inclined plane inner side surface, a lower pressing block 81 with front and rear end surfaces being inclined surfaces is slidably matched between the inclined surface blocks 80, a pressure block 54 is fixed at the upper end of the lower pressing block 81, a connecting block 55 is fixed at the upper end of the pressure block 54, the upper end of the connecting block 55 is hinged with the swinging rod 56, a connecting block 58 which is vertically symmetrical with the clamping rod 53 is fixed at the left end of the pressure block 54, a pushing block 71 which pushes the clamping rod 53 to move up and down is fixed at the left end of the connecting block 58, a detector 46 which is fixed at the lower end wall of the first driving cavity 16 is arranged at the lower end of the clamping rod 53, a buffer 18 which is fixed at the lower end wall of the first driving cavity 16 is arranged at the right end of the detector 46, the upper end surface of the buffer 18 is an inclined surface, the right end of the first driving cavity 16 is communicated with a working cavity 23 with an upward opening, a sensor 17 which is fixed at the upper end wall of the first driving, an expansion rod 22 is slidably fitted in the first cylinder 24, a carrier 19 with an inclined upper end surface is fixed at the upper end of the expansion rod 22, and a first conveying device 20 and a second conveying device 21 are communicated with the right end of the working cavity 23.

Advantageously, the conveying mechanism comprises a conveying chamber 39 located at the lower end of the first driving chamber 16 and communicating up and down, the lower end of the conveying chamber 39 is communicated with a third driving chamber 25 with a left opening, a second air cylinder 26 fixed at the lower end wall of the third driving chamber 25 is arranged in the third driving chamber, a rack 27 is slidably fitted at the left end of the second air cylinder 26, a push rod 28 is fixed at the left end of the rack 27, a gear 65 meshed with the rack 27 is arranged at the upper end of the push rod 28, the gear 65 is fixed on a first rotating shaft 66 rotatably mounted in the third driving chamber 25, a guide rod 69 fixed on the first rotating shaft 66 is arranged at the front end of the gear 65, a first bevel gear 67 fixed on the first rotating shaft 66 is arranged at the front end of the guide rod 69, a second bevel gear 68 is meshed at the left end of the first bevel gear 67, and a second bevel gear 29 is slidably fitted at the lower ends of the, the connecting plate 30 is fixed at the left end of the guide rod 69, the second rotating shaft 70 is fixed at the left end of the second bevel gear 68, the second rotating shaft 70 is rotatably engaged with the connecting plate 30, a second sliding groove 40 with a left opening and communicating with the third driving chamber 25 is provided in the second rotating shaft 70, a second spring 41 fixedly connected with the right end wall of the second sliding groove 40 is arranged in the second sliding groove, a second sliding rod 42 is fixedly connected with the left end of the second spring 41, the second sliding rod 42 is in spline fit with the second rotating shaft 70, a transport block 43 is fixed at the left end of the second sliding rod 42, the rear end of the transportation block 43 is matched with the push rod 28, the transportation rod 31 is symmetrically fixed at the left end of the transportation block 43 up and down, the inner side of the transportation rod 31 is matched with a rotating block 45 in a rotating mode through a torsion spring 32, and the inner side surface of the transportation rod 31 is provided with a groove 44 for positioning a spark plug.

Advantageously, the transmission mechanism comprises a spark plug 33 at the left end of the transport rod 31, the lower end of the spark plug 33 is symmetrically provided with a carrying platform 35 for carrying the front end and the rear end of the spark plug 33, the carrying platform 35 is provided with an arc-shaped groove 34 for placing the spark plug 33, the carrying platform 35 is fixed on a second belt 38, a third belt pulley 37 is symmetrically arranged in the second belt 38 in the left and right direction and is in power fit, the third belt pulley 37 is fixed on a third rotating shaft 36 rotatably installed in the front end wall and the rear end wall of the third drive cavity 25, and a second motor 82 is in power connection with the rear end of the third rotating shaft 36 on the right side.

In the initial state, the bent portion of the crankshaft 13 is upward, the second slide block 77 is in contact with the front and rear end walls of the second drive chamber 74, the screw block 47 is in contact with the first stopper plate 48, the lower press block 81 is not in contact above the ramp block 80, the lower push block 71 is in contact with the clamp rod 53, the slide column 51 is at the top of the first slide groove 59, the clamp block 52 is in a clamped state, the stage 19 is horizontal to the first conveyor 20, and the rack 27 is not engaged with the gear 65;

when the operation is started, the second motor 82 is started, the third rotating shaft 36 is intermittently rotated to drive the third belt pulley 37 to rotate, the second belt 38 drives the carrying platform 35 to move, so that the spark plug 33 moves to the position, the second air cylinder 26 drives the rack 27 to move leftwards, the push rod 28 is pushed to drive the transport block 43 to drive the transport rod 31 to move leftwards, the second sliding rod 42 moves leftwards, the second spring 41 is stretched, the rotating block 45 rotates after contacting with the spark plug 33, so that the spark plug 33 enters the groove 44 in the transport rod 31, the rack 27 is meshed with the gear 65, the first rotating shaft 66 rotates ninety degrees, the guide rod 69 drives the connecting plate 30, the second rotating shaft 68, the second rotating shaft 70, the second sliding rod 42, the transport block 43, the transport rod 31, the rotating block 45 and the spark plug 33 to make a circular motion ninety degrees around the first rotating shaft 66, the first bevel gear 67 rotates to drive the second rotating shaft 70 to rotate ninety degrees, the second sliding rod 42 drives the transportation block 43 to rotate and separate from the push rod 28, so that the second spring 41 resets to drive the transportation block 43 and the transportation rod 31 to move rightwards together, the spark plug 33 turns right and enters the first driving cavity 16, the first motor 64 is started to rotate the crankshaft 13, the first belt pulley 11 drives the second belt pulley 57 to rotate, the reciprocating lead screw 49 rotates to drive the lead screw block 47 to reciprocate leftwards and rightwards, the push rod 79 pushes the first sliding block 60, the third limiting block 78 and the clamping rod 53 to reciprocate leftwards and rightwards, the crankshaft 13 rotates to drive the swinging rod 56 to reciprocate upwards and downwards, the pressure block 54 and the lower pressing block 81 reciprocate upwards and downwards, the lower pressing block 81 presses the movable block 73, the inclined block 80 and the second sliding block 77 when pressed downwards, the first spring 76 is compressed, the lower pressing block 81 ascends to reset the first spring 76 to reset the movable block 73, the inclined block 80 and the second sliding block 77, thereby achieving the reciprocating motion back and forth to drive the clamping block 52 on the clamping rod 53 to do the reciprocating motion of clamping and releasing, because the pressure block 54 reciprocates up and down to make the connecting block 58 drive the clamping rod 53 to reciprocate up and down, when the spark plug 33 enters the first driving cavity 16, the pressure block 54 presses down to open the movable block 73, the inclined block 80 and the second sliding block 77 to drive the clamping rod 53 and the clamping block 52 to open, and drive the connecting block 58, the pushing block 71, the clamping rod 53 and the clamping block 52 to move down to the middle position of the spark plug 33, the pressure block 54 starts to move up, the first spring 76 resets to reset the lower pressing block 81, the second sliding block 77 and the movable block 73 to reset the left clamping block 52 to clamp the spark plug 33, at this time, the connecting block 58 on the lower side drives the pushing block 71, the clamping rod 53, the clamping block 52 and the spark plug 33 to move up, and the reciprocating lead screw 49 drives the screw block 47 to move right, the pushing rod 79, the first sliding block 60, the third limiting block 78, the clamping rod 53, the clamping block 52 and the spark plug 33 are enabled to move rightwards to reach the position above the detector 46, when the screw rod block 47 moves leftwards, the pressure block 54 moves downwards to enable the movable block 73, the inclined block 80 and the second sliding block 77 to drive the clamping rod 53 and the clamping block 52 to open, so that the spark plug 33 falls into the detector 46 to detect whether the spark plug is qualified or not, when the clamping block 52 on the left side clamps the second spark plug 33, the clamping block 52 on the right side clamps the spark plug 33 detected in the detector 46 to move rightwards to place on the cushion pad 18, the sensor 17 controls the first air cylinder 24 to stretch and retract the telescopic rod 22, so that the spark plug 33 carried by the carrying platform 19 is qualified to be transported by the first transporting device 20, and unqualified to be transported by.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. A spark plug electrification detecting device is characterized in that: a transmission mechanism is arranged in the machine body, a detection mechanism is arranged at the right end of the transmission mechanism, a conveying mechanism is arranged below the detection mechanism, a transmission mechanism is arranged at the left end of the conveying mechanism, the transmission mechanism comprises a first driving cavity positioned at the upper part of the machine body, a first limiting block is fixedly arranged on the upper end wall in the first driving cavity, a second limiting block fixedly connected with the upper end wall of the first driving cavity is arranged at the right end of the first limiting block, a crankshaft extending leftwards is rotatably arranged between the first limiting block and the second limiting block, a sleeve is fixed on the bent part of the crankshaft, a swinging rod is hinged at the lower end of the sleeve, the crankshaft extends leftwards and is in power connection with a first motor fixed on the left end wall of the first driving cavity, a first belt pulley fixed on the crankshaft is arranged at the right end of the first motor, and a, the lower end of the first belt is in power connection with a second belt pulley, a first limiting plate fixedly mounted on the rear end wall of the first driving cavity is arranged at the right end of the second belt pulley, a second limiting plate fixedly mounted on the rear end wall of the first driving cavity is arranged at the right end of the first limiting plate, a reciprocating lead screw extending leftwards is rotatably mounted between the first limiting plate and the second limiting plate, the reciprocating lead screw extends leftwards and is fixedly connected with the second belt pulley, a lead screw block is matched with part of the reciprocating lead screw between the first limiting plate and the second limiting plate in a threaded manner, and a push rod which is slidably mounted in the second limiting plate and extends rightwards is fixed at the front end of the lead screw block; the detection mechanism comprises a first fixed block which is positioned at the right end of the second limiting plate and is fixedly connected with the front end wall and the rear end wall of the first driving cavity, the right end of the first fixed block is provided with an opening, a movable cavity is arranged in the first fixed block, the movable cavity is communicated with the opening, a first sliding block is arranged in the movable cavity, third limiting blocks which are in sliding fit with the front end wall and the rear end wall of the movable cavity are symmetrically arranged in the front and the rear of the first sliding block, the push rod extends rightwards into the movable cavity and is fixedly connected with the first sliding block, first sliding grooves are symmetrically arranged in the first sliding block in the front and the rear direction, sliding columns are closely and slidably matched in the first sliding grooves, clamping rods which extend rightwards are fixed at the rear ends of the sliding columns, two clamping blocks which are arranged leftwards and rightwards are arranged on the inner sides of the clamping rods, and second fixed blocks, a second driving cavity with an upward opening and communicated with the first driving cavity is arranged in the second fixing block, first sliding rods fixed on the front end wall and the rear end wall of the second driving cavity are symmetrically arranged in the second driving cavity, second sliding blocks extending out of the second fixing block upwards are symmetrically arranged on the first sliding rods in a sliding manner, a movable block is arranged at the upper end of each second sliding block in a sliding manner, a movable groove for the clamping rods to slide up and down is formed in each movable block, a first spring wound on the surface of each first sliding rod is arranged between the second sliding blocks in the second fixing block, an inclined block with an inclined plane at the inner side end face is fixed on the inner side of each second sliding block, a lower pressing block with inclined planes at the front end face and the rear end face is arranged between the inclined blocks in a sliding fit manner, a pressure block is fixed at the upper end of each lower pressing block, and a connecting block is fixed at the upper end, the upper end of the connecting block is hinged with the swing rod, the left end of the pressure block is fixedly provided with a connecting block which is vertically symmetrical relative to the clamping rod, the left end of the connecting block is fixedly provided with a pushing block which pushes the clamping rod to move up and down, the lower end of the clamping rod is provided with a detector fixed on the lower end wall of the first driving cavity, the right end of the detector is provided with a buffer cushion fixed on the lower end wall of the first driving cavity, the upper end surface of the buffer cushion is an inclined surface, the right end of the first driving cavity is communicated with a working cavity with an upward opening, the first driving cavity is internally provided with an inductor fixed on the upper end wall of the first driving cavity, the working cavity is internally provided with a first air cylinder fixed on the lower end wall of the first driving cavity, the first air cylinder is in sliding fit with a telescopic rod; the conveying mechanism comprises a conveying cavity which is positioned at the lower end of the first driving cavity and is communicated up and down, the lower end of the conveying cavity is communicated with a third driving cavity with a leftward opening, a second air cylinder fixed on the lower end wall of the third driving cavity is arranged in the third driving cavity, a rack is in sliding fit with the left end of the second air cylinder, a push rod is fixed at the left end of the rack, a gear meshed with the rack is arranged at the upper end of the push rod, the gear is fixed on a first rotating shaft which is rotatably arranged in the third driving cavity, a guide rod fixed on the first rotating shaft is arranged at the front end of the gear, a first bevel gear fixed on the first rotating shaft is arranged at the front end of the guide rod, a second bevel gear is meshed at the left end of the first bevel gear, a supporting block is in sliding fit with the lower ends of the push rod and the rack, a connecting plate, the second rotating shaft is in rotating fit with the connecting plate, a second sliding groove with a left opening and communicated with the third driving cavity is arranged in the second rotating shaft, a second spring fixedly connected with the right end wall of the second sliding groove is arranged in the second sliding groove, a second sliding rod is fixedly connected with the left end of the second spring, the second sliding rod is in spline fit with the second rotating shaft, a transport block is fixed at the left end of the second sliding rod, the rear end of the transport block is matched with the push rod, transport rods are symmetrically fixed at the upper and lower parts of the left end of the transport block, a rotating block is rotationally matched on the inner side of each transport rod through a torsion spring, and a groove for positioning a spark plug is formed in the surface of the inner side of each transport rod; the transmission mechanism comprises a spark plug positioned at the left end of the transport rod, the lower end of the spark plug is symmetrically provided with carrying platforms for carrying the front end and the rear end of the spark plug in a front-back manner, the carrying platforms are provided with arc-shaped grooves for placing the spark plug, the carrying platforms are fixed on a second belt, third belt pulleys are symmetrically arranged in the second belt in a left-right manner and are in power fit with the second belt pulleys, the third belt pulleys are fixed on a third rotating shaft which is rotatably arranged in the front end wall and the rear end wall of a third driving cavity, and the rear end of the third rotating shaft on the right;

in an initial state, the bent part of the crankshaft faces upwards, the second sliding block is in contact with the front end wall and the rear end wall of the second driving cavity, the screw rod block is in contact with the first limiting plate, the lower pressing block is not in contact with the upper portion of the inclined plane block, the pushing block is in contact with the clamping rod, the sliding column is arranged at the top of the first sliding groove, the clamping block is in a clamping state, the carrying platform is horizontal to the first conveying device, and the rack is not meshed with the gear;

when the device starts to work, the second motor is started, the third rotating shaft is made to rotate intermittently to drive the third belt pulley to rotate, the second belt drives the carrying table to move, so that the spark plug moves in place, the second cylinder makes the rack move leftwards, the push rod is pushed to make the transport block drive the transport rod to move leftwards, the second sliding rod moves leftwards, the second spring is stretched, the rotating block rotates after contacting with the spark plug, so that the spark plug enters the groove in the transport rod, the rack is meshed with the gear, the first rotating shaft rotates ninety degrees, the guide rod drives the connecting plate, the second bevel gear, the second rotating shaft, the second sliding rod, the transport block, the transport rod, the rotating block and the spark plug to do circular motion ninety degrees around the first rotating shaft, the first bevel gear rotates to make the second bevel gear drive the second rotating shaft to rotate ninety degrees, the second sliding rod drives the transport block to rotate to separate from the push rod, so that the second spring resets to drive the transport block and the transport rod, the spark plug is turned to ninety degrees and enters the first driving cavity, the first motor is started to rotate the crankshaft, so that the first belt pulley drives the second belt pulley to rotate, the reciprocating lead screw rotates to drive the lead screw block to reciprocate left and right, the push rod pushes the first sliding block, the third limiting block and the clamping rod to reciprocate left and right, the crankshaft rotates to drive the oscillating rod to reciprocate up and down, the pressure block and the lower pressing block reciprocate up and down, the movable block, the bevel block and the second sliding block are extruded when the lower pressing block presses down, the first spring is compressed, the lower pressing block ascends to reset the first spring to reset the movable block, the bevel block and the second sliding block, so that the reciprocating motion back and forth is achieved, the clamping block on the clamping rod is driven to do reciprocating motion of clamping and loosening, the connecting block drives the clamping rod to reciprocate up and down due to the reciprocating motion of the pressure block, when the spark plug enters the first driving cavity, the pressure block is pressed downwards to open the movable block, the inclined plane block and the second sliding block, the clamping rod and the clamping block are driven to be opened, the connecting block, the pushing block, the clamping rod and the clamping block are driven to move downwards to the middle position of the spark plug, the pressure block starts to move upwards, the first spring is reset to reset the lower pressing block, the second sliding block and the movable block, the clamping block on the left side clamps the spark plug, the connecting block on the lower side drives the pushing block, the clamping rod, the clamping block and the spark plug to move upwards, the reciprocating lead screw rotates to drive the lead screw block to move rightwards, the pushing rod, the first sliding block, the third limiting block, the clamping rod, the clamping block and the spark plug move rightwards and reach the upper part of the detector, when the lead screw block moves leftwards, the pressure block moves downwards to drive the movable block, the inclined plane block and the second sliding block to drive the clamping rod and the clamping block to be opened, when the clamping block on the left side clamps a second spark plug, the clamping block on the right side clamps the spark plug which is detected in the detector and moves rightwards to be placed on the buffer pad, the telescopic rod of the first cylinder is controlled by the sensor to enable the carrying platform to bear the qualified spark plug to be transported away by the first transporting device, and the unqualified spark plug to be transported away by the second transporting device.