CN112008386B

CN112008386B - Full-automatic equipment for locking various screws

Info

Publication number: CN112008386B
Application number: CN202010893346.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Yelu Electromechanical Technology Co ltd
Current assignee: Hangzhou Yelu Electromechanical Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-06-03
Anticipated expiration: 2040-08-31
Also published as: CN112008386A

Abstract

The invention discloses full-automatic equipment locked with various screws, which comprises a base with a foot cup support, wherein the top of the base is transversely provided with a positioning stepping conveying mechanism; the top of the base is sequentially provided with a material separating and discharging assembly, a double-head multi-variety screw locking mechanism, an unqualified sorting mechanism and an unqualified material pushing mechanism according to the conveying direction; an electric appliance control box is also arranged on one side of the material separating and discharging component; the automatic feeder is arranged on the side surface of the double-head multi-variety screw locking mechanism; a feeding positioning conveying assembly is arranged between the material separating and discharging assembly and the double-head multi-variety screw locking mechanism; a synchronous driving conveyor combination used for discharging is arranged between the double-head multi-variety screw locking mechanism and the unqualified sorting mechanism. The product is in the straight line assembly line, and the whole process of automatic positioning, automatic assembly and lock attach, transport, letter sorting is automatic, and not only the working distance is short, the assembly speed is fast, and the quality is guaranteed, equipment structure is simple, adopt the standard component to build the mechanism, and is with low costs, the delivery period is short.

Description

Full-automatic equipment for locking various screws

Technical Field

The invention relates to the technical field of automatic assembly equipment, in particular to full-automatic equipment for locking various screws.

Background

The electric conduction system of the electric leakage molded case circuit breaker for the industrial power transmission and distribution comprises an incoming line end, an outgoing line end and a conductive plate, wherein the incoming line end is assembled in each polar groove of a base by a static contact, a wiring board, the conductive plate and screws, the outgoing line end is assembled in each polar groove of the molded case circuit breaker base by the static contact, the conductive plate, the screws and assembling parts, the static contact and the wiring board are respectively locked with two screws with different specifications, the screws are fixed in the base by a handheld electric screwdriver, the parts play a role of a conductive switching circuit, the static contact can be seriously burned along with strong electric arcs in the switching work, and the electric arc metal particles easily cause circuit breaking faults, so that the electric conduction system is a main way for protecting the static contact and the wiring board.

The existing molded case circuit breaker base is provided with a static contact of an incoming line end, a conductive plate, M6 and M5 screws, an outgoing line end wiring board, M4 and M5 screws, a wiring board locking M3 and a base, and both manual operations are adopted; aligning one hand to the static contact for single pressing and reversing 90-180 degrees to adjust the static contact to be in the same direction as the base, and then grabbing the static contact by the other hand to be installed in a pole groove in the wire holder; then one hand grabs the base, the other hand locks and attaches the screwdriver after sucking the screw, and the wiring board of the wire inlet end and the screw are manually assembled by the same method; after the current-conducting plate is manually assembled, the screws are manually fed, the product is turned over for four times and is pressed tightly by fingers, the screwdriver is held by the other hand to lock the screws, the operation procedures are multiple and need 5 to 6 persons to complete manually, and when the static contact, the wiring board and the current-conducting plate are assembled and locked with the screws, workers not only need to hold the screwdriver or the gas screwdriver, but also need to turn over the base and press the fingers, and then the screws are placed in screw holes to be locked. The method has the advantages that the operation is poor, the rework rate is high, when the fixed contact and the wiring board are assembled on the wiring base, the positions of the fixed contact and the wiring board need to be aligned for multiple times, the offset and the locking are prone to occurring, hidden dangers and burning loss are caused to the quality of the molded case circuit breaker, the mode is complex, the efficiency is low, and the labor cost is high.

The existing screw locking mechanism can realize the locking of screws of fixed varieties and fixed intervals, the locking can not be realized after the distance between the screw and the screw is changed, and the screw locking mechanism which is automatically adjustable and suitable for screws of different specifications and adjustable in different gaps is not provided.

Disclosure of Invention

The invention aims to provide full-automatic equipment for locking various screws, and solves the problem that full-automatic assembly and full-automatic locking cannot be realized when line terminal components are arranged on a base in the prior art.

The invention adopts the technical scheme that the full-automatic equipment locked with various screws comprises a base with a foot cup support, wherein the top of the base is transversely provided with a positioning stepping conveying mechanism; the top of the base is sequentially provided with a material separating and discharging assembly, a double-head multi-variety screw locking mechanism, an unqualified sorting mechanism and an unqualified material pushing mechanism according to the conveying direction of the positioning stepping conveying mechanism; an electric appliance control box is also arranged on one side of the material separating and discharging component; the automatic feeder is arranged on the side surface of the double-head multi-variety screw locking mechanism; a feeding positioning conveying assembly is arranged between the material separating and discharging assembly and the double-head multi-variety screw locking mechanism; and a blanking positioning conveying assembly for blanking is arranged between the double-head multi-variety screw locking mechanism and the unqualified sorting mechanism.

The conveying direction of the positioning stepping conveying mechanism is sequentially provided with an input first station, a lifting positioning second station, a screw locking assembly third station, an unqualified transposition fourth station, an unqualified discharging fifth station and a qualified output sixth station; the material separating and discharging assembly is arranged at a second lifting and positioning station; the double-head multi-variety screw locking mechanism is arranged at a third station of the screw locking assembly; the unqualified sorting mechanism is arranged at an unqualified transposition fourth station; the unqualified material pushing mechanism is arranged at the fifth unqualified material discharging station, and the qualified product material discharging is arranged at the sixth qualified material discharging station.

The positioning stepping conveying mechanism comprises two pairs of L-shaped supports which are arranged at intervals; the two pairs of L-shaped supports are used for fixing a pair of conveying frames which are arranged at intervals; the conveying frames are provided with conveying belts and connected through two fixing rods.

The double-head multi-variety screw locking mechanism comprises a supporting component, the bottom of the supporting component is installed on the positioning stepping conveying mechanism, and the top of the supporting component is connected with a transverse distance adjusting component; the transverse spacing adjusting component is connected with the locking component; the bottom of the locking component is provided with a screw dislocation locking supply component.

Unloading location conveying element installs on the base through two pairs of L type support I and L type support II, including two carriage that the interval set up, is equipped with the conveyer belt along the carriage, and the carriage outside is connected with the baffle, and conveyer belt one end is equipped with the pivot, is equipped with motor I and synchronizing wheel in the pivot, and synchronizing wheel and conveyer belt meshing are driven synchronizing wheel and conveyer belt by motor I.

The feeding positioning and conveying assembly is positioned on two outer sides of the discharging positioning and conveying assembly, the feeding positioning and conveying assembly penetrates through conveying frames on two sides of the discharging positioning and conveying assembly through a front driving shaft and a rear driving shaft and is fixed on a pair of vertical plates, and the feeding positioning and conveying assembly comprises a double-row stepping conveying mechanism, a front positioning clamp, a rear positioning clamp, a conveying track and a lifting assembly.

The lifting assembly is arranged at the front end feeding part and the rear end discharging part of the feeding positioning conveying assembly and comprises a pair of vertical plates fixedly connected with a T-shaped plate, the lower ends of the vertical plates are connected with a baffle and a middle U-shaped groove plate, two connecting rod plates are symmetrically arranged on two sides of the U-shaped groove plate on a rotating shaft, the two connecting rod plates are respectively penetrated on two rotating shafts, two ends of the rotating shaft are fixed on a pair of T-shaped bearing seats, the pair of T-shaped bearing seats are fixed on the back surface of a base, the T-shaped bearing seats are positioned on the outer sides of the connecting rod plates, fisheye movable joints are arranged on the outer sides of the rotating shafts and are connected with an air cylinder, the air cylinder is coupled with the rotating shaft of the U-shaped seat, the U-shaped seat is fixed on the back surface of the base, a guide plate is fixed on the T-shaped plate, a limiting plate is arranged in the middle of the guide plate and is crossed with the limiting plate and arranged in a cross-shaped groove plate to slide, the cross-shaped groove plate is provided with an upper straight groove and a lower straight groove, and a guide cross-shaped groove is formed by a left straight groove and a right straight groove, the cross-shaped groove plate is arranged between the two double linear sliding rails and is fixed on the vertical plate.

Separate material blowing subassembly including being fixed in two pairs of supports on the base, the support is connected with two pairs of optical axes, a pair of intermediate lamella is fixed in the middle of the optical axis by the support, be equipped with the cylinder on the intermediate lamella, four optical axis upper ends are equipped with the herringbone template, set up the cylinder in the middle of above the herringbone template, the centre has two linear slide rail below the herringbone template, slider on the two linear slide rail is connected with the L template, hang the push pedal before the L template, herringbone template front end triangle-shaped is provided with the straight line and slides vice, the straight line slides vice including three linear bearing and three optical axis, three optical axis lower extreme is connected with the fixed plate, the fixed plate both ends are connected with two limiting plates, be equipped with distance detection sensor in the limiting plate lateral wall, two limiting plates are spacing about carrying the circuit breaker base constitution of moulding the case.

Unqualified letter sorting mechanism includes a pair of support of installing on the base, the support is connected with a pair of optical axis, the diaphragm passes through the side-mounting support and is fixed with the optical axis, the diaphragm openly is equipped with the two slide rails of vertical direction, be equipped with the fixed plate on the slider on the two slide rails, the fixed plate is connected with the cylinder, the cylinder is fixed at the diaphragm back, be equipped with the two straight line slider slide rail pairs of horizontal direction parallel arrangement on the fixed plate, be fixed with the riser on the two straight line slider slide rail pairs, be equipped with two splint on the riser, the riser is connected with the connecting plate, the connecting plate is fixed connection with the slider of rodless cylinder, rodless cylinder is fixed in the diaphragm upper end.

Unqualified material of pushing away is provided with the storage riser including bad storage platform on the bad storage platform, is provided with two linear slide rails and no pole cylinder on the storage riser, is fixed with the board on the slider on the two linear slide rails, is fixed with the push pedal on the sliding block of no pole cylinder.

The invention has the beneficial effects that: the automatic assembly and locking device is automatic in the whole process of automatic positioning, automatic assembly and locking, conveying and sorting in a linear assembly line, short in operation distance, high in assembly speed, guaranteed in quality, simple in equipment structure, low in cost and short in delivery period, is suitable for automatic locking and assembly of screws at different positions and intervals, can work independently, can be butted with any assembly line to form a linear flow type automatic assembly line with better cost performance, can realize automatic assembly of 2-pole, 3-pole and 4-pole circuit breaker bases with different widths and screws with different specifications and different fixed contacts, wiring boards, current conducting plates and wiring screws with different specifications, and can meet screw locking requirements of deep holes and wide mounting counterbores.

Drawings

FIG. 1 is a schematic view of the overall structure of the fully automatic apparatus for locking various screws according to the present invention;

FIG. 2 is a schematic structural diagram of a double-head multi-variety screw locking mechanism in the fully automatic apparatus for locking various screws according to the present invention;

fig. 3 is a structural diagram of an automatic correction thread bush in the double-headed multi-variety screw locking mechanism of the present invention.

FIG. 4 is a schematic view of the in-line synchronous drive conveyor assembly of FIG. 1;

FIG. 5 is a schematic view of the feeding positioning conveyor assembly of FIG. 1;

FIG. 6 is a schematic view of the front positioning clamp and the rear positioning clamp structure and the conveying track structure in the feeding positioning conveying assembly in FIG. 5;

FIG. 7 is a schematic structural view of the material separating and discharging assembly 3 in FIG. 1;

fig. 8 is a schematic structural view of the reject sorting mechanism 5 in fig. 1;

FIG. 9 is a schematic view of the lift assembly 11 of FIG. 1;

in the figure, 1, a base, 2, a positioning stepping conveying mechanism, 3, a material separating and discharging assembly, 4, a double-head multi-variety screw locking mechanism, 5, an unqualified sorting mechanism, 6, an unqualified material pushing mechanism, 7, an automatic feeder I, 8, an automatic feeder II, 9, a material loading positioning conveying assembly, 10, a material unloading positioning conveying assembly, 11, a lifting assembly, 12, a material stopping limit, 13, a motor driving mechanism, 15, an electrical appliance control box, 20, a positioning pin support, 21, a T-shaped support, 22, a fixing plate, 23, a screw locking assembly I, 24, a screw locking assembly II, 25, a support, 26, an adjusting locker I, 27, an adjusting locker II, 28, a fixed optical axis, 29, a linear support, 30, a linear guide rail, 31, a double-slide block I, 32, a connecting fixing plate, 33, a lower fixing plate, 34, an extending end plate, 35, a cylinder, 36, an upper fixing plate, 37, a linear guide rail frame, 38. an optical axis, 39, a limiting buffer, 40, a fixing plate I, 41, an upper optical axis, 42, an electric batch, 43, an electric batch support, 44, a transverse fixing plate, 45, a support, 46, an oil pressure spring buffer, 47, a screw guide pipe, 48, a transverse cylinder, 49, an L-shaped plate, 50, a horizontal plate, 51, a horizontal guide rail, 52, a fixing hole II, 53, a plate, 54, a buffer barrier, 55, a bearing plate, 56, an automatic correction thread bush I, 57, an automatic correction thread bush II, 58, a lower step inner hole round sleeve, 59, an automatic correction thread bush III, 62, an input first station, 63, a material blocking cylinder, 64, a material discharging cylinder, 65, a lifting positioning second station, 66, a lifting frame, 67, a locking thread assembly third station, 68, a conveying double-row positioning clamp, 70, a fourth station, 71, an unqualified fifth discharging station, 72, an unqualified sixth discharging station, 73. conveying belt, 74, conveying frame, 75, motor I, 76, baffle I, 77, fixing rod II, 78, fixing rod I, 79. L-shaped support I, 80. L-shaped support II, 81, baffle II, 82, rear driving shaft, 83, U-shaped groove fixing plate, 84, vertical plate I, 85, limit buffer I, 86. L-shaped frame, 87, inertia wheel, 88, end point groove photoelectric detection, 89 groove photoelectric detection, 90 tank chain, 91, inner ring, 92 original point groove photoelectric detection, 93, tooth-shaped pressing plate I, 94, tooth-shaped pressing plate II, 95, synchronizing wheel I, 96, front driving shaft, 97, operating handle, 98, limit buffer II, 99, synchronizing wheel II, 100, fixing plate II, 101, motor II, 102, front lifting guide rail, 103, double sliding block II, 104, lifting piece, 105, middle fixing guide rail, 106, first rear lifting guide rail, 107, second rear lifting guide rail, 108, vertical plate II, 109. a limiting cambered surface, 110, a vertical frame plate, 111, a T-shaped plate I, 113, a U-shaped groove I, 114, an upper supporting L-shaped plate, 115, an L-shaped support plate, 116, a U-shaped groove plate, 117, a baffle plate III, 118, a U-shaped groove II, 119, a centering limiting cambered surface, 120, a sliding plate with a U-shaped groove, 121, a contact bridge, 122, a through groove, 123, an L-shaped upper plate, 125, a linear sliding rail I, 126, a T-shaped frame, 127, a linear sliding rail II, 128, a bottom plate, 129, a front positioning clamp cylinder, 130, a double sliding block III, 131, a linear sliding rail III, 132, a T-shaped plate II, 133, a double linear sliding rail, 136, a pair of supports, 137, a pair of optical axes, 138, an intermediate plate, 139, a multi-section cylinder I, 140, a multi-section cylinder II, 141, a herringbone plate, 143, a multi-section cylinder III, 144, a double linear sliding rail, 145, an optical axis I, 146, L-shaped plate, 147, a suspended push plate, 148, a distance detection sensor, 150, 149, a limiting plate I, 151. the device comprises limiting plates II, 152, fixed plates III, 153, linear bearings, 154, optical axes II, 155, linear bearings, 156, optical axes III, 157, propulsion cylinders, 159, rodless cylinders, 160, connecting plates, 161, L-shaped connecting plates, 162, risers, 163, supporting seats, 164, optical axes pairs, 165, clamping plates I, 166, double linear slide rails I, 167, fixed plates, 168, clamping plates II, 169, double linear slide block slide rail pairs, 170, transverse plates, 171, poor storage platforms, 172, storage vertical plates, 173, rodless cylinders I, 174, plates I, 175, double linear slide rails II, 176, push plates, 177, sliding sliders, 178, U-shaped seats, 179, multi-section cylinders IV, 180, fisheye movable joints, 181, rotating shafts I, 182, rotating shafts II, 183, T-shaped bearing seats, 184, connecting rod plates I, 185, connecting rod plates II, 186, double linear slide rails III, 189, linear slide rail pairs, 189, sliding sliders II, 190. the cross-shaped groove plate comprises a cross-shaped groove plate 191, a guide plate II, 192, an upright linear guide rail, 193, a right straight groove, 194, a guide plate I, 195, a left straight groove, 196, an upper straight groove, 197, a limiting groove, 198, a lower straight groove, 200, a pair of baffles, 201, a cylinder II, 202, a magnetic attraction positioning plate, 203, a sliding rod, 204, an upward pushing cylinder, 260, a cylinder, 261, a ball, 262, a spring, 263, a round hole, 264, a T-shaped spring sleeve, 265, a first internal thread sleeve, 266, a top thread sleeve, 267, a large taper hole, 268, a small taper hole, 269, a second through inner hole, 270, a first through inner hole, 271, a second internal thread sleeve, 272, a first operating flat, 273, a first thread pair, 274, a second thread pair, 275, a second operating flat, 276, a top thread through hole, 277, a third thread pair, 278, a fourth thread pair, 279, a T-shaped spring sleeve I, 280, a T-shaped spring sleeve II, 281, 271 and a first inclined inner tube.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention takes a 4-pole molded case circuit breaker as an example;

as shown in fig. 1 and 3, the full-automatic device for locking various screws comprises a base 1 with a support of a foot cup, wherein a positioning stepping conveying mechanism 2 is transversely arranged at the top of the base 1; the top of the base 1 is sequentially provided with a material separating and discharging assembly 3, a double-head multi-variety screw locking mechanism 4, an unqualified sorting mechanism 5 and an unqualified material pushing mechanism 6 according to the conveying direction of the positioning stepping conveying mechanism 2; an electric appliance control box 15 is also arranged on one side of the material separating and discharging component 3; the automatic feeder I7 and the automatic feeder II8 are arranged on the side surface of the double-head multi-variety screw locking mechanism 4; a feeding positioning conveying assembly 9 is arranged between the material separating and discharging assembly 3 and the double-head multi-variety screw locking mechanism 4; lifting components 11 are arranged at two ends of the feeding positioning conveying component 9; and a blanking positioning conveying assembly 10 is arranged between the double-head multi-variety screw locking mechanism 4 and the unqualified sorting mechanism 5.

As shown in fig. 4, the conveying direction of the positioning stepping conveying mechanism 2 is sequentially provided with an input first station 62, a lifting positioning second station 65, a screw locking assembly third station 67, an unqualified transposition fourth station 70, an unqualified discharging fifth station 71 and a qualified output sixth station 72; the material separating and discharging assembly 3 is arranged at a second lifting and positioning station 65; a lifting assembly 11 is arranged close to the right end of the material separating and discharging assembly 3; another lifting assembly 11 is arranged close to the left end of the unqualified sorting mechanism 5; the double-head multi-variety screw locking mechanism 4 is arranged at a third station 67 of the screw locking assembly; the feeding positioning conveying assembly 9 is arranged on the positioning stepping conveying mechanism 2 and is positioned at the tail ends of the lifting positioning second station 65 and the screw locking assembly third station 67; the unqualified sorting mechanism 5 is arranged at an unqualified transposition fourth station 70; the unqualified material pushing mechanism 6 is arranged at an unqualified material discharging fifth station 71, and the qualified product material discharging is arranged at a qualified output sixth station 72.

As shown in fig. 2, the structure of the double-head multi-variety screw locking mechanism 4 is as follows: the supporting component comprises a pair of optical axis 38 with positioning pin supports 20 at the bottom, fixed on two sides of the two layers of tracks of the base 1; the upper ends of the pair of optical axes 38 are fixed with a fixing plate 22 which is transversely and vertically arranged through a T-shaped support 21; a pair of linear guide rails 30 are transversely arranged on the other side of the fixed plate 22 at intervals, the linear guide rails 30 are installed on the fixed plate 22 through linear supports 29, double sliders I31 on the pair of linear guide rails 30 are fixedly connected with the connecting and fixing plates 32, and the distance between the centers of the two connecting and fixing plates 32 is equal to the distance between the centers of locking screw holes of a line inlet end and a line outlet end of the locking product base 1;

the adjusting component is characterized in that a connecting fixing plate 32 is fixedly connected with an adjusting locker I26 and an adjusting locker II27 on a fixed optical axis 28 through an extending end plate 34, a lower fixing plate 33 is installed between the extending end plate 34 and the connecting fixing plate 32, a double-row linear slide rail and a slide block are arranged between the lower fixing plate 33 and the extending end plate 34, an upper vertical plate at the outer end of the lower fixing plate 33 is fixed with an upper sliding plate of a multi-stroke double-slide-rod cylinder, the double-slide-rod cylinder is fixed with an outer end face of one extending end plate 34, a limiting buffer 39 is arranged at the other outer end face of the extending end plate 34, and the double-slide-rod cylinder pushes a screw locking component I23 and a screw locking component II24 to lock an X axial screw; a double-row linear slide rail and a slide block are arranged between the lower fixing plate 33 and the extending end plate 34, and limit buffering is realized, a double-slide-rod cylinder is not shown in the drawing, and a double-slide-rod cylinder is used for fixing a bottom plate, an adjusting locker I26 and an adjusting locker II27 to adjust the upper fixing plate 36; the distance between the centers of the two lower fixing plates 33 is adjusted by adjusting the locker I26 and the locker II 27; a fixed optical axis 28 is arranged in the middle of the linear guide rail 30, the fixed optical axis 28 is supported and fixed by a pair of supports 25 at two ends, an adjusting locker I26 and an adjusting locker II27 are locked at two ends of the optical axis 28, and the lower ends of the adjusting locker I26 and the adjusting locker II27 are fixedly connected with the lower surface of the end of the extending section on the double-sliding-rod cylinder fixing bottom plate;

the locking assembly consists of a locking screw assembly I23 and a locking screw assembly II24 which have the same structure, the structure of the locking screw assembly I23 comprises a linear guide rail frame 37 which is vertically arranged in the middle of an extending end plate 34 and is provided with double sliders, an upper fixing plate 36 which is arranged on the extending end plate 34 and is provided with a middle U-shaped groove is sequentially arranged from top to bottom, the upper fixing plate 36 is connected with a fixed connecting plate I40, a fixed connecting plate I40 is connected with the sliders, an upper optical axis 41 and an air cylinder 35 are arranged on the upper fixing plate 36, the bottom of the upper optical axis 41 is fixed on a support 43, the support 43 is fixed on a transverse fixing plate 44 of an electric batch 42, the transverse fixing plate 44 is fixed on the sliders of the linear guide rail frame 37 of the double sliders, a support 45 is arranged at the lower end of the transverse fixing plate 44, an oil pressure spring buffer 46 is arranged on the

support

45, 6 screw dislocation locking supply assemblies, namely a plurality of automatic feeders I7 and automatic feeders II8 are arranged at the outer end of the wire guide rail frame 37 below the extending end plate 34, the screwdriver connected with the lower end of the electric screwdriver 42 enters the screw dislocation locking supply assembly, and any screw in the screw dislocation locking supply assembly is screwed into the product threaded hole on the base 1. A pair of fixing holes II52 on the transverse fixing plate 44 is over against the center of a hole of an automatic correction thread sleeve under the screw dislocation locking supply component, an air cylinder is arranged on the transverse fixing plate 44, an isolation plate for isolating subsequent screws is arranged at the rod end of the air cylinder, the isolation plate is inserted into a sleeve of the fixing hole II52, and the sleeve and the screws are connected with air-blowing screw conveying pipes controlled by a plurality of groups of automatic feeders I7 and automatic feeder II8 electromagnetic valves; the bottoms of the pair of fixing holes II52 are provided with screw guide pipes which are opposite to three automatic correction thread sleeves with different specifications for automatically correcting the offset of screws; the inner wall of the automatic correction threaded sleeve is provided with a detection element for detecting the existence of the screw, and the air-blowing screw conveying pipe is sleeved with the detection element for detecting the existence of the air-blowing screw.

The screw dislocation locking and attaching supply assembly comprises a horizontal plate 50 arranged at the lower end of the extension end plate 34, a horizontal guide rail 51 is arranged on the horizontal plate 50, a sliding block on the horizontal guide rail 51 is connected with a plate 53, a bearing plate 55 is horizontally arranged on the plate 53, buffer stops 54 are arranged on the extension end plate 34 at two sides of the bearing plate 55, the bottom of the bearing plate 55 is connected with an L-shaped plate 49, a transverse cylinder 48 is arranged on the L-shaped plate 49, and three automatic correction threaded sleeves which are arranged at equal intervals with the adjacent centers of the pole grooves of the 2-pole, or 3-pole and 4-pole lead-in and lead-out ends are arranged at intervals on the bearing plate 55; the self-aligning thread bushing has a lower stepped bore circular sleeve 58 at its upper and lower ends.

The working principle is as follows: the base 1 on the positioning stepping conveying mechanism 2 is blocked and distributed by a material separating and discharging component 3, the lifting component 11 lifts the base 1 on the conveying belt of the positioning stepping conveying mechanism 2 to separate from the conveying belt, the base 1 enters a front positioning clamp of a feeding positioning conveying component 9, the front positioning clamp positions and clamps the base 1 and part screws, the double-row stepping conveying mechanism 2 on the feeding positioning conveying component 9 drives the front positioning clamp to convey a first polar groove of the base 1 to the lower side of a double-head multi-variety screw locking mechanism 4, a screw automatic feeder I7 and an automatic feeder II8 convey screws into a pair of fixing holes II52 of the screw distributing component through an electromagnetic valve and an air blowing pipe, the screws enter lower step inner hole round sleeves 58 in 3 automatic correction thread sleeves, and a multi-section stroke transverse air cylinder 48 of the screw dislocation locking and supplying component drives three automatic correction thread sleeves on a bearing plate 55. The screw with required specification is aligned to the screwdriver and the screw driver, the specific inclined screw is automatically corrected and automatically clamped by the automatically retractable ball, the pushing cylinder is pressed against the screwdriver and the screw driver to rotate, the corrected screw is locked into the screw through hole of the base 1, such as the fixed contact, the wire holder and the like, to be locked, and the screw locking assembly on the double-head multi-variety screw locking mechanism 4 is synchronously matched with the multi-section stroke transverse cylinder 48 along the X axis to drive any one of the automatically corrected threaded sleeves on the bearing plate 55 to correspond to screws with different intervals and different specifications on the base at different positions and intervals.

As shown in fig. 3, the self-aligning threaded bushing 59 is composed of a cylinder 260 fixed on both sides of a large cylindrical step by welding a T-shaped spring bushing 264, and a three-step cylinder with through inner holes of the cylinder 260, a first oblique cone inner tube 281 and a small cone hole 268.

An upper inclined threaded hole for assembling an upper screw feeding pipe is arranged on the outer side of the cylinder 260 and is not shown in the drawing, the upper inclined threaded hole is communicated with a through inner hole 270 for the passing in and out of a screw driver and a screw, a first internal thread sleeve 265 and a second internal thread sleeve 271 are arranged at two ends of the cylinder 260, the first internal thread sleeve 265 at the upper end of the upper inclined threaded hole is provided with a large-specification screw driver inlet large taper hole 267, the second internal thread sleeve 271 at the lower end of the lower inclined threaded hole is provided with a small-specification screw driver inlet small taper hole 268, and internal thread counter bores for assembling a T-shaped spring sleeve 264 are arranged at two ends of the cylinder 260.

The external thread jackscrew sleeve 266 and the T-shaped spring sleeve 264 are connected through a fourth thread pair 278, and the external thread jackscrew sleeve 266 and the T-shaped spring sleeve II 280 are fixedly connected to the two ends of the large cylindrical step through a third thread pair 277; a plurality of balls 261 are uniformly distributed on a second internal thread sleeve 271 and a T-shaped spring sleeve 264 of the cylinder 260, the balls 261 are distributed along the circumference of the second internal thread sleeve 271 to form a rolling output channel of a screwdriver, a screw, a spring piece screw and the like, a plurality of springs 262 are arranged in round holes uniformly distributed on the outer wall of an inner hole of the T-shaped spring sleeve 264, the springs 262 are used for floating jacking and floating jacking the balls 261, the diameter of the floating jacking and floating jacking is 3.5D-D which is suitable for the specification of the screw, the diameter of the elastic sheet or the flat pad is not more than that of the screw with the specification of 1.7D, and D is the maximum diameter of the flat pad or the elastic pad; d is the screw and spring piece flat pad combined screw with different screw diameters, and the inclination and the offset are automatically corrected, so that the screw driver, the screw and spring piece flat pad combined screw automatically align the center; the inner hole wall of the external thread jackscrew sleeve 266 is provided with a plurality of jackscrew through holes 276 and a plurality of jackscrew jacking springs 262, and the springs 262 jack the balls 261, so that the balls 261 are pressed on the wall of the inner hole 270 of the cylinder 260.

As shown in fig. 4-5, the blanking positioning conveying assembly 10 is mounted on the base 1 through two pairs of L-shaped supports I79 and L-shaped supports II80, and includes two conveying frames 74 arranged at intervals; the two conveying frames 74 are fixedly connected through a first fixing rod 78 and a second fixing rod 77, a conveying belt 73 is arranged along the conveying frames 74, and a baffle 81 is radially arranged at the top of the outer side 74 of each conveying frame; the height of the baffle 81 is higher than that of the conveying belt 73, a plurality of fixing plates are mounted on the outer sides of the two conveying racks 74 arranged at intervals, a pair of baffles I76 and II81 are fixed at the tops of the fixing plates, and the heights of the baffles I76 and II81 are higher than that of the conveying belt 73; a rotating shaft is arranged at one end of the conveying belt 73, a motor I75 and a synchronizing wheel are arranged on the rotating shaft, the synchronizing wheel is meshed with the conveying belt 73, and the synchronizing wheel and the conveying belt 73 are driven by a motor I75; a front cylinder connecting rod lifting component 11 and a lifting piece 104 are arranged near the right ends of the pair of baffles II 81; a second lifting piece 104 is arranged near the left end of the baffle 200, and the second lifting piece 104 is driven by a rear end cylinder connecting rod lifting mechanism of the cylinder connecting rod lifting assembly 11; the right end of the second lifting piece 104 is provided with a material pushing positioning clamp 69, and the material pushing positioning clamp 69 is fixed on the unqualified sorting mechanism 5.

As shown in fig. 5, the feeding positioning and conveying assembly 9 is located at two outer sides of the discharging positioning and conveying assembly 10, and is composed of a front driving shaft 96, a rear driving shaft 82, a conveying frame 74 penetrating through two sides of the discharging positioning and conveying assembly 10, and a pair of vertical plates I84, and comprises a double-row stepping conveying mechanism, a front positioning clamp, a rear positioning clamp, a conveying track and a lifting mechanism.

The double-row stepping conveying mechanism comprises vertical plates I84 arranged on two sides of a conveying frame 74, a front driving shaft 96 is arranged at the left end of the vertical plate I84, the front driving shaft 96 is fixedly connected with a synchronizing wheel I95 through a flat key, the front driving shaft 96 is fixed with a motor II101 through a coupling, the motor II101 is connected with a fixing plate II100, and the fixing plate II100 is fixed on the base 1; a rear driving shaft 82 is arranged at the right end of the vertical plate I84, the rear driving shaft 82 is fixedly connected with a synchronizing wheel II99 through a flat key, a conveying belt 73 is meshed between the synchronizing wheel II99 and the synchronizing wheel I95, a U-shaped groove fixing plate 83 is arranged in the middle of the vertical plate I84, an inertia wheel 87 capable of adjusting the tightness of the conveying belt 73 is arranged on the U-shaped groove fixing plate 83, and an initial origin groove type photoelectric detection 92, a groove type photoelectric detection 89 and an end point groove type photoelectric detection 88 are arranged in the middle of an inner ring 91 of the conveying belt 73 and the vertical plate I84; a linear slide rail III131 is arranged at the top of the vertical plate I84, a limiting buffer I85 and a limiting buffer II98 are respectively arranged at two ends of the linear slide rail III131, a limiting buffer I85 and a limiting buffer II98 are fixed on the L-shaped frame 86, a double-slider III130 is arranged at two ends of the linear slide rail III131, the double-slider III130 is fixed with the bottom plate 128, a tooth-shaped pressure plate II94 and a tooth-shaped pressure plate I93 are arranged at the lower end of the bottom plate 128, and a conveying belt 73 is clamped between the tooth-shaped pressure plate II94 and the tooth-shaped pressure plate I93 by screws; the side surface of a bottom plate 128 is connected with an L-shaped plate, a tank chain 90 is fixed with the middle of the L-shaped plate, the L-shaped plate is fixed with a T-shaped frame 126, the other end of the tank chain 90 is fixedly connected with a table top, the lower end of the T-shaped frame 126 is fixed with the side surface of the bottom plate 128, the upper end surface of the T-shaped frame 126 is fixedly connected with a front positioning clamp cylinder 129, the front positioning clamp cylinder is fixed on an L-shaped upper plate 123, a front positioning clamp rear positioning clamp is arranged on the side surface of a vertical plate of the L-shaped upper plate 123, a plurality of groups of square grooves are arranged on the side surface of the bottom plate of the L-shaped upper plate 123, return springs and four groups of contact bridges 121 for detecting the locking screws in place are arranged in the square grooves, and the contact bridges 121 can be reset along the square grooves by the springs; the upper plate 123 is fixed with the double-slider II103, and the double-slider II103, the linear slide rail II127 and the linear slide rail I125 form a sliding pair.

As shown in fig. 6, the front positioning jig and the rear positioning jig have the same structure including: a sliding pair is fixed on a bottom plate of the bottom plate 128, a linear slide rail II127 and a linear slide rail I125 are arranged on the sliding pair, a double-slider II103 is fixedly connected with an L-shaped upper plate 123, 4 square grooves with the same distance with the center of the polar groove of the quadrupole base are arranged on the L-shaped upper plate 123, four groups of contact bridges 121 and reset springs are arranged in the 4 square grooves, and each group of contact bridges 121 are arranged; a magnetic self-centering limiting cambered surface 119 which is matched with the arc surface of the screw and has magnetic attraction is arranged on an L-shaped upper plate 123 at the upper end of the contact bridge 121, and a magnetic attraction positioning plate 202 of the wire holder is arranged at the lower end of the limiting cambered surface 109; the upper end of the L-shaped upper plate 123 is provided with a magnetic self-centering limiting cambered surface 119, and the distance between the self-centering limiting cambered surfaces 119 and the magnetic limiting cambered surfaces 109 is equal; the self-centering limiting arc surface 119 corresponds to the magnetic-attraction limiting arc surface 109; a connecting plate 127 is arranged at the outer end of the bottom plate 128, the connecting plate 127 is fixedly connected with a cylinder rod of a cylinder II201, and the cylinder II201 is fixed on the L-shaped upper plate 123; the lower end of the bottom plate 128 is provided with a tooth-shaped pressing plate I93 which is fixed with the conveying belt 73 and the lower clamping plate by screws.

The structure of the conveying track is composed of a front lifting guide rail 102, a middle fixed guide rail 105 and a first rear lifting guide rail 106, the molded case circuit breaker base moves along the double-U-shaped track formed by the front lifting guide rail 102, the middle fixed guide rail 105 and the first rear lifting guide rail 106 in a stepping mode, and the front lifting guide rail 102 and the first rear lifting guide rail 106 have the same structure: the double-linear guide rail 133 is fixed on the vertical plate 84, a sliding block on the double-linear guide rail 133 is fixed with the T-shaped plate 132, the T-shaped plate 132 is fixed with the upper U-shaped groove II118, a through groove 122 is formed in the U-shaped groove II118, and the U-shaped groove II118 is connected with a baffle plate III117 in the middle of the lifting piece 104;

the middle fixed guide rail 105 is fixed on the base 1 and consists of a pair of L-shaped bracket plates 115 and an upper supporting L-shaped plate 114; the first rear lifting guide rail 106 comprises a double-linear guide rail 133 fixed on a vertical plate I84, a sliding block on the double-linear guide rail 133 is fixed with a T-shaped plate I111, a T-shaped plate 1II32 is fixed with a U-shaped groove I113, and the U-shaped groove I113 is connected with a baffle plate III117 in the middle of the lifting piece 104;

as shown in FIG. 7, the material-separating and discharging assembly 3 comprises two pairs of brackets 136 fixed on the base 1, the brackets 136 are connected with two pairs of optical axes 137, a pair of intermediate plates 138 are fixed in the middle of the optical axes 137 by a support, a multi-section air cylinder II 140 and a multi-section air cylinder I139 are arranged on the intermediate plates 138, a herringbone plate 141 is arranged at the upper end of the two pairs of optical axes 137, a multi-section air cylinder III 143 is arranged in the middle of the upper surface of the herringbone plate 141, a double-linear slide rail 144 is arranged in the middle of the lower surface of the herringbone plate 141, a slide rail slider 149 on the double-linear slide rail 144 is connected with the L-shaped plate 146, a push plate 147 is suspended in front of the L-shaped plate 146, a triangular front end of the herringbone plate 141 is provided with three linear sliding pairs consisting of a linear bearing 155 and an optical axis I145, an optical axis II154, an optical axis III156, the lower ends of the optical axis I145, the optical axis II154, the optical axis III156 are connected with a retaining plate I150 and a retaining plate II151, a distance detecting sensor 148 is arranged in the side wall of the retaining plate I150, the multi-section air cylinder III 143 drives the L-shaped plate 146 and the hanging push plate 147 to push 2 poles, 3 poles and 4 poles of different bases, the distance detection sensor 148 automatically identifies the 2 poles, 3 poles and 4 poles bases according to the distance, and the limiting plate I150 and the limiting plate II151 carry out up-and-down limiting on the wire holder on the conveyed molded case circuit breaker base;

as shown in fig. 8, the unqualified sorting mechanism 5 includes a pair of supporting seats 163 installed on the base 1, the supporting seats 163 are connected with a pair of aligning shafts 164, the transverse plate 170 is fixed with the aligning shafts 164 through side installation supports, the front surface of the transverse plate 170 is provided with a pushing positioning fixture 69, the pushing positioning fixture 69 includes a double-linear slide rail I166 in the vertical direction of the front surface of the transverse plate 170, a fixed flat plate 167 is arranged on a slide block on the double-linear slide rail I166, the fixed flat plate 167 is connected with a pushing cylinder 157, the pushing cylinder 157 is fixed on the back surface of the transverse plate 170, the fixed flat plate 167 is provided with a double-linear slide rail 169 in parallel arrangement in the horizontal direction, a plate 162 is fixed on the double-linear slide rail 169, a clamping plate 165 and a clamping plate 168 are arranged on the plate 162, the vertical plate 162 is connected with the connecting flat plate 160, the connecting flat plate 160 is fixedly connected with a slide block of the rodless cylinder 159, and the rodless cylinder 159 is fixed on the upper end of the transverse plate 170.

The unqualified material pushing 6 is structurally formed by arranging a storage vertical plate 172 on a bad storage platform 171, arranging a double-linear slide rail II 175 and a rodless cylinder I173 on the storage vertical plate 172, fixing a slide block on the double-linear slide rail II 175 with a plate I174, and connecting a slide block 177 on the rodless cylinder I173 with a push plate 176.

As shown in fig. 9, the lifting assembly 11 is disposed at the front end feeding position and the rear end discharging position of the feeding positioning conveying assembly 9, and the lifting assembly 11 has the following structure: the front lifting guide rail 102 and the first rear lifting guide rail 106 are symmetrically arranged in the same structure, a pair of vertical plates II108 are fixedly connected with a T-shaped plate II132 on a double-linear guide rail 133, the right lower end of the vertical plate II108 with the U-shaped groove characteristic is fixedly connected with a lifting piece 104 end of the lifting assembly 11, the lifting piece 104 is connected with a connecting rod at the lower end of the vertical plate II108, and the connecting rod is connected with a connecting rod plate II185 and a connecting rod plate 184I; a U-shaped groove plate 116 is arranged in the middle of a baffle plate III117, a sliding rod 203 is arranged in the U-shaped groove plate 116, the sliding rod 203 is fixed with a vertical push-up cylinder 204, the push-up cylinder 204 is fixed with a base 1, two ends of the baffle plate III117 are fixedly connected with a middle fixed guide rail 105, a pair of vertical plates II108 are connected with a connecting rod plate II185 and a connecting rod plate I184 on two sides of a rotating shaft I181 through connecting rods, a connecting rod plate II185 and a connecting rod plate I184 are symmetrically arranged on the rotating shaft I181 on two sides of the U-shaped groove plate 116, the connecting rod plate II185 and the connecting rod plate I184 penetrate through the rotating shaft II182 and the rotating shaft II181, two ends of the rotating shaft II182 are fixed on a pair of T-shaped bearing seats 183, a pair of T-shaped bearing seats 183 are fixed on the back of the base 1, the T-shaped bearing seats 183 are positioned on the outer sides of the connecting rod plate II185 and the connecting rod plate I184, a fisheye movable joint 180 is arranged on the outer side of the rotating shaft II181, the fisheye movable joint 180 is connected with a multi-section cylinder IV 179, a multi-section cylinder 179 is coupled with the rotating shaft of the U-shaped seat 178, the back of the base 1, the T-shaped plate II132 is fixed with a sliding block II 189 of a pair of linear sliding pairs 188, linear guide rails on the pair of linear sliding pairs 188 are fixed with a vertical plate I84, a guide plate II191 with a guide groove is arranged in the middle of the T-shaped plate II132 in the middle of the pair of sliding blocks II 189, a guide plate I194 is arranged in the middle of the guide plate II191, the guide plate I194 is fixed on the T-shaped plate II132, a limit groove 197 is arranged in the middle of the guide plate I194, the guide plate I194 and the limit groove 197 are arranged in a cross shape, the guide plate I194 and the limit groove 197 slide in a cross-shaped groove plate 190, the cross-shaped groove plate 190 is arranged in the middle of the T-shaped plate II132, an upper straight groove 196 and a lower straight groove 198 form a cross-shaped guide groove with a left straight groove 195 and a right straight groove 193, the guide plate II191 is arranged in the middle of the double linear sliding rails III186 or the double linear sliding rails 133, and the cross-shaped groove plate 190 is fixed on the vertical plate I84.

The working principle of the invention is as follows: the static contact, the wire holder, the screw assembly and the wiring board are arranged in corresponding circular vibration discs, each part is vibrated and sent to a U-shaped groove of a U-shaped straight rail by the circular vibration discs, each part is sent to a cross groove by the direct vibration, and the part is pushed to a feeding track or a feeding pipe of the part by each dislocation pushing mechanism; then assembling on a feeding track, pushing the assembly by the second stroke of a double-stroke pushing cylinder to the lower part of an assembly manipulator, installing the assembly manipulator into a polar groove of a molded case circuit breaker base, leading the molded case circuit breaker base into the left end of a conveying belt 73 by the manipulator, stopping a plurality of molded case circuit breaker bases by a pair of stopping cylinders 63 on a material separating and placing positioning assembly 3, detaching and releasing the materials by a pair of placing cylinders 64, entering a U-shaped groove II118 of a front lifting guide rail 102 at the left end of a material placing and conveying assembly 10, lifting the front lifting guide rail 102 and the U-shaped groove II118 on a first rear lifting guide rail 106 by a synchronous cylinder connecting rod lifting assembly 11, separating the molded case circuit breaker bases from the conveying belt 73, entering the U-shaped groove II118, respectively aligning the front lifting guide rail 102 and the first rear lifting guide rail 106 with a middle fixed guide rail 105 to form a conveying track of the molded case circuit breaker base, and driving an L146 and a suspension push plate 147 by a multi-section cylinder III 143 on the material separating and placing and positioning assembly 3, the suspension push plate 147 pushes different bases 2 poles, 3 poles and 4 poles to the slide rod 203, the slide rod 203 is pushed upwards by the vertical push-up cylinder 204, the suspension push plate 147 and the slide rod 203 clamp different bases, the distance detection sensor 148 automatically identifies the bases 2 poles, 3 poles and 4 poles according to the distance, the limiting plate I150 and the limiting plate II151 form up-and-down limiting on the wiring seat on the conveyed molded case circuit breaker base, the positioning clamps on the positioning stepping conveying mechanism 2 are aligned and positioned, the front positioning clamp cylinder 129 on the feeding positioning conveying assembly 9 is used for clamping the wiring seat, the static contact and the screw in four pole grooves of the molded case circuit breaker base, automatically correcting the offset wiring seat, the static contact and the screw, particularly correcting the error of the screw exceeding 3mm to more than 5mm offset to 0, the vertical push-up cylinder 204 resets and retracts the slide rod 203, the double-row stepping conveying mechanism motor II101 on the feeding positioning conveying assembly 9 drives the synchronizing wheel II99 to be meshed with the synchronizing wheel I95 The conveying belt 73 drives the plastic case breaker base which is sucked first by the front positioning clamp cylinder 129 and then clamped to move from the front positioning clamp U-shaped groove II118 to the middle fixed guide rail 105, a first polar groove of the plastic case breaker base is conveyed to the lower side of the double-head multi-variety screw locking mechanism 4, screws are conveyed to a screw distributing assembly and a screw dislocation locking and supplying assembly dislocation supplying pipe through a screw feeder through an electromagnetic valve and an air blowing pipe to enter a screw locking assembly I23 and an automatic correction thread bush I56, an automatic correction thread bush II57 and an automatic correction thread bush III59 on the screw locking assembly II24, inclined screws are automatically clamped through automatically corrected and automatically telescopic balls, the rotating jacking pressure of the pushing cylinder, a screwdriver and a screw driver is pushed to lock the corrected screws into a static contact and a wire holder, the current conducting plate, the wiring board and the wiring seat are fixedly locked in screw through holes of the molded case circuit breaker base. The feeding positioning conveying assembly 9 feeds repeatedly according to the distance between the polar grooves of the molded case circuit breaker base to lock, and for different positions and distances, a multi-stroke double-sliding-rod cylinder of a screw locking assembly on the double-head multi-variety screw locking mechanism 4 is synchronously matched with the multi-stroke transverse cylinder 48 along an X axis to drive an automatic correction threaded sleeve on the bearing plate 55 to correspond to screws with different distances and different specifications of the locking base; after the locking of the screws including the conductive plate screws is repeatedly completed, the feeding positioning conveying assembly 9 moves the front positioning clamp cylinder 129 to the molded case circuit breaker base to the U-shaped groove II118 on the first rear lifting guide rail 106 of the lifting assembly 11 at the right end, the molded case circuit breaker base is descended to fall onto the conveying belt 73 on the conveyor combination 10, the conveying belt 73 conveys the molded case circuit breaker base to the middle of the clamping plate I165 and the clamping plate II168 at the unqualified sorting mechanism 5, if the molded case circuit breaker base is unqualified, the unqualified molded case circuit breaker base is pushed into the unqualified material pushing 6 by the pushing clamping plate I165 and the clamping plate II168 by the unqualified sorting mechanism 5 and pushed to the collecting region by the unqualified material pushing 6, if the qualified product is qualified, the unqualified sorting mechanism 5 does not work, and the molded case circuit breaker base is output to the next procedure along the output U-shaped groove at the right end of the conveyor combination 10.

The method comprises the following specific steps: step 1, after a molded case circuit breaker base is guided to an input first station 62 by a manipulator and is detected to be assembled, a discharging cylinder 64 transfers the conveyed assembled molded case circuit breaker base to the junction of the input first station 62 and a lifting and positioning second station 65, a pair of material blocking cylinders 63 on a material separating and discharging positioning assembly 3 block the subsequent assembled molded case circuit breaker base, the discharging cylinder 63 discharges the molded case circuit breaker base and enters a U-shaped groove II118 of a front lifting guide rail 102, a multi-section cylinder IV 179 of a lifting assembly 11 drives a rotating shaft I181, the rotating shaft I181 drives a connecting rod plate II185 and a connecting rod plate I184 to rotate clockwise around the rotating shaft II182, a T-shaped plate II132 connected with the connecting rod plate II185 and the connecting rod plate I184, a guide plate I194 and a limiting groove 197 on the T-shaped plate II132 slide upwards along a cross-shaped guide groove 193 of the cross-shaped groove 190, and the limiting groove 197 is clamped at the upper ends of a left straight groove 195 and a right straight groove 193, the multi-section air cylinder IV 179 is driven to stop, the lifting stops, the lifting assembly 11 drives the pair of vertical plates II108 and the T-shaped plates II132 to move upwards, the lifting assembly 11 lifts the molded case circuit breaker base out of the U-shaped groove II118, the U-shaped groove II118 in the front lifting guide rail 102 is flush with the guide rail of the middle fixed guide rail 105, the front lifting guide rail 102 and the first rear lifting guide rail 106 are respectively aligned with the middle fixed guide rail 105 to form a conveying rail of the molded case circuit breaker base, the vertical push-up air cylinder 204 lifts the sliding rod 203 in the U-shaped groove plate 116 in the middle of the baffle plate III117, the hanging push plate 147 and the sliding rod 203 clamp different bases, and the distance detection sensor 148 automatically identifies 2-pole, 3-pole or 4-pole different molded case circuit breaker bases according to the distance from the automatic identification incoming material assembly molded case circuit breaker base;

step 2: in the lifting process, when the molded case circuit breaker base enters a U-shaped groove I113 and a U-shaped groove II118, a multi-section air cylinder III 143 of a material separation and discharge assembly 3 loosens a front suspension push plate 147 and a sliding rod 203 to compress the assembled molded case circuit breaker base, the molded case circuit breaker base falls on an L-shaped track of the U-shaped groove I113 and the U-shaped groove II118, the arrangement of the inner wall of the U-shaped groove I113 in a feeding positioning and conveying assembly 9 detects that the assembled molded case circuit breaker base is detected, the feeding positioning and conveying assembly 9 drives a centering and limiting arc surface 119 of an L-shaped upper plate 123 to clamp a square wiring frame and suck a first suction clamp at a front positioning clamp air cylinder 129, the front positioning clamp air cylinder 129 drives 4 magnetic limiting arc surfaces 109 on the L-shaped upper plate 123 to clamp a screw in the wiring frame and suck the first suction clamp at the rear clamp, and the wiring frame is designed in such that the deviated wiring frame and the screw which is not more than 5mm in 360 degrees are centralized and positioned and clamped to the installation center position, the installation deviation in the prior art is eliminated, and the assembled molded case circuit breaker base is sucked, clamped, positioned and lifted; the motor driving mechanism 13 drives the feeding positioning conveying assembly 9 to move the molded case circuit breaker base to a position below the double-head multi-variety screw locking mechanism 4 of the third station 67 of the screw locking assembly step by step along the front lifting guide rail 102 and the middle fixed guide rail 105;

step 3; a plurality of groups of automatic feeders I7 and II8 on the third station 67 of the lock screw assembly respectively feed the lock screw assembly I23 and the lock screw assembly II24 of the double-head multi-variety lock screw mechanism 4; m5 screws, M6 screws, M4 screws and M3 screws are conveyed to a screw distributing assembly through an automatic feeder I7 and a plurality of groups of screw automatic feeders II8 to be distributed through an electromagnetic valve and an air blow pipe, when detection on the inner wall of an automatic correction thread sleeve in a screw dislocation locking and supplying assembly is used for detecting that no screw is detected by screw sliding head, the automatic feeder I7 and the plurality of groups of screw automatic feeders II8 are blown into the screw distributing assembly through hoses, an air cylinder on a transverse fixing plate 44 of the screw distributing assembly drives a partition plate on a fixing hole 52, the partition plate leaves the fixing hole 52, the M5 screws and the M6 screws fall into a sleeve below the fixing hole 52 from a pair of fixing holes 52, and then enter an automatic correction thread sleeve III59 in a right end locking screw assembly II24 screw dislocation locking and supplying assembly to enter an M5 screw, an automatic correction thread sleeve II57M6 screw and an M4; the M3 screw falls into the sleeve pipe under the fixing hole 52 from the pair of fixing holes 52, then enters the self-correcting thread sleeve III59 in the left end locking screw assembly I23 screw dislocation locking supply assembly, enters the M4 screw, and enters the self-correcting thread sleeve II57 into the M3 screw; when a screw is detected, the screwdriver 42 and a screwdriver below the screwdriver descend and rotate to enter the automatic correction threaded sleeve; the combined screw of the screw including the shrapnel and the flat pad is automatically corrected firstly, the combined screw of the screw including the shrapnel and the flat pad in any state including the inclined deviation state enters the big taper hole 267 of the first internal thread sleeve 265 for automatic correction, the combined screw including the shrapnel and the flat pad enters the big taper hole 281 of the first inclined taper internal tube 281 of the cylinder 260 for automatic correction, before the rotary screwdriver descends to prop against the big head of the screw to identify and buckle the big head cross groove, when the small end of the screw is jacked into the first straight through internal hole 270 of the cylinder 260 to prop against the plurality of balls 261 of the first straight through internal hole 270, the plurality of springs 262 behind the plurality of balls 261 float and are jacked, the specification diameter of the screw is 3.5D-D, the diameter of the shrapnel or the flat pad is not more than the screw of the specification of 1.7D, and D is the maximum diameter of the flat pad or the elastic pad; d is the automatic correction inclination and deviation of the screws with different screw diameters and the flat gasket combination screw of the spring piece, so that the screw driver and the screws, the spring piece flat pad combined screw automatic alignment center automatically corrects offset in a third stage and adapts to automatic correction and locking of screws of different specifications, a large screw head and a small screw head entering a first through inner hole 270 are synchronously and automatically corrected to the center, a screw driver is enabled to buckle a cross groove of the screw at the center of the screw, poor sliding head is eliminated, the large screw head is arranged in front of an output cylinder 260, a fourth-stage automatic correction center is arranged through a small conical hole 268 at the tail end of the first through inner hole 270, the screw or the spring pad flat pad combined screw is enabled to coincide in the automatic correction screw center, the screw driver center and the screw hole center, the work of locking the screw into the screw hole is smoothly completed, and the technical problem that screws of different specifications cannot be locked by the same screw locking mechanism in the same screw chuck in the prior art is eliminated;

a double-slide-rod cylinder is arranged on the lower fixing plate 33, the screw locking assembly is pushed to move to a second point screw locking position in the X axial direction, the position of the transverse cylinder 48 of the screw dislocation locking supply assembly is unchanged, the automatic correction thread sleeve III59 in the screw dislocation locking supply assembly of the right screw locking assembly II24 enters an M5 screw, the automatic correction thread sleeve III59 in the screw dislocation locking supply assembly of the left screw locking assembly I23 enters an M4 screw, and according to the screw locking method, the electric screwdriver 42 and the screwdriver locking the right screw locking assembly II24 lock the M5 screw into the second through hole of the first row of the fixed contact and the threaded hole of the base of the plastic-shell circuit breaker, so that the fixed contact and the base of the plastic-shell circuit breaker are locked by the M5 screw; the screwdriver 42 and the screwdriver of the left end screw locking assembly I23 lock the M4 screw into the second through hole of the first row of the wiring board and the threaded hole of the base of the molded case circuit breaker, so that the wiring board and the base of the molded case circuit breaker are locked by the M4 screw, and the double-sliding-rod cylinder on the lower fixing plate 33 pushes the screw locking assembly I23 and the screw locking assembly II24 to move in the X axial direction and restore to the first point screw locking position.

The screw dislocation locking and supplying assembly transverse cylinder 48 pushes the supporting plate 55, the supporting plate 55 pushes the automatic correction thread bush II57 in the right end locking screw assembly II24 screw dislocation locking and supplying assembly to enter an M6 screw, the automatic correction thread bush II57 in the left end locking screw assembly I23 screw dislocation locking and supplying assembly to enter an M3 screw, according to the screw locking and supplying method, the screwdriver 42 and the screwdriver of the locking screw assembly II24 at the right end locks the M6 screw into the first through hole of the second row of the static contact and the threaded hole of the base of the molded case circuit breaker, so that the fixed contact and the base of the molded case circuit breaker are locked by the M6 screw; the screwdriver and the screwdriver of the left end screw locking assembly I23 lock the M3 screw into the first through hole of the second row of the wiring board and the threaded hole of the base of the molded case circuit breaker, so that the wiring board and the base of the molded case circuit breaker are locked by the M3 screw; a double-slide-rod cylinder is arranged on the lower fixing plate 33, the screw locking assembly I23 and the screw locking assembly II24 are pushed to move to a second point screw locking position in the X axial direction, the position of the screw staggered locking supply assembly transverse cylinder 48 is unchanged, and the screwdriver 42 and the screwdriver of the screw locking assembly II24 at the right end lock the M6 screws into a second through hole of the second row of the fixed contact and a threaded hole of the base of the molded case circuit breaker repeatedly according to a second point screw locking method and principle, so that the fixed contact and the base of the molded case circuit breaker are locked by the M6 screws; the screwdriver 42 and the screwdriver of the left end screw locking component I23 lock the M3 screw into the second through hole of the second row of the wiring board and the threaded hole of the base of the molded case circuit breaker, so that the wiring board and the base of the molded case circuit breaker are locked by the M3 screw

And step 3: the assembled molded case circuit breaker base is sucked, clamped, positioned and lifted; the motor driving mechanism 13 drives the feeding positioning conveying assembly 9 to move the wire inlet end of the assembled molded case circuit breaker base to a position below the double-head multi-variety screw locking mechanism 4 of the third station 67 of the screw locking assembly step by step along the front lifting guide rail 102 and the middle fixed guide rail 105; the two rows of 4 screws of the static contact of the inlet end and the two rows of 4 screws of the wiring board of the outlet end are locked and attached according to the pole slot locking and attaching method and the principle.

And 4, step 4: the assembled molded case circuit breaker base is sucked, clamped, positioned and lifted; the motor driving mechanism 13 drives the feeding positioning and conveying assembly 9, the lifting assembly 11 enables a lock screw assembly molded case circuit breaker base and a positioning clamp to fall down along the front lifting guide rail 102 and the middle fixed guide rail 105, the lock screw assembly molded case circuit breaker base comes out of the feeding positioning and conveying assembly 9 and falls into the discharging positioning and conveying assembly 10, the discharging positioning and conveying assembly 10 conveys the locking screw assembly molded case circuit breaker base to an unqualified transposition fourth station 70, if the locking screw assembly molded case circuit breaker base is an unqualified product, a unqualified sorting mechanism 5 clamps and pushes the locking screw assembly molded case circuit breaker base to an unqualified discharging fifth station 71, and an unqualified material pushing 6 pushes the unqualified product to a collection position; if the product is qualified, the blanking positioning and conveying assembly 10 directly discharges the qualified product of the lock screw assembly molded case circuit breaker base to a qualified output sixth station 72 and sends the qualified product to the next procedure.

And (5) repeating the steps 1 to 7 to carry out full-automatic on-line assembly and locking assembly line operation of the screws.

Claims

1. The full-automatic equipment for locking and attaching various screws is characterized by comprising a base with a foot cup support, wherein the top of the base is transversely provided with a positioning stepping conveying mechanism; the top of the base is sequentially provided with a material separating and discharging assembly, a double-head multi-variety screw locking mechanism, an unqualified sorting mechanism and an unqualified material pushing mechanism according to the conveying direction of the positioning stepping conveying mechanism; an electric appliance control box is also installed on one side of the material separating and discharging assembly; the automatic feeder is arranged on the side surface of the double-head multi-variety screw locking mechanism; a feeding positioning conveying assembly is arranged between the material separating and discharging assembly and the double-head multi-variety screw locking mechanism; a blanking positioning and conveying assembly for blanking is arranged between the double-head multi-variety screw locking mechanism and the unqualified sorting mechanism;

the blanking positioning conveying assembly comprises two conveying frames which are arranged at intervals, a conveying belt is arranged along the conveying frames, a baffle is connected to the outer side of each conveying frame, a first rotating shaft is arranged at one end of the conveying belt, a motor I and a synchronizing wheel are arranged on the first rotating shaft, the synchronizing wheel is meshed with the conveying belt, and the synchronizing wheel and the conveying belt are driven by the motor I;

the feeding positioning conveying assembly comprises a double-row stepping conveying mechanism, a front positioning clamp, a rear positioning clamp, a conveying track and a lifting assembly;

the lifting assembly is arranged at the front end feeding part and the rear end discharging part of the feeding positioning conveying assembly and comprises a pair of vertical plates fixedly connected with a T-shaped plate, the lower ends of the vertical plates are connected with a baffle and a middle U-shaped groove plate, two connecting rod plates are symmetrically arranged on two sides of the U-shaped groove plate on a second rotating shaft, the two connecting rod plates are respectively penetrated on the second rotating shaft and a third rotating shaft, two ends of the third rotating shaft are fixed on a pair of T-shaped bearing seats, the pair of T-shaped bearing seats are fixed on the back surface of the base, the T-shaped bearing seats are positioned on the outer sides of the connecting rod plates, a fisheye movable joint is arranged on the outer side of the second rotating shaft and is connected with a first air cylinder, the first air cylinder is coupled with the rotating shaft of the U-shaped seat, the U-shaped seat is fixed on the back surface of the base, a guide plate is fixed on the T-shaped plate, a limiting plate is arranged in the middle of the guide plate, the guide plate and the limiting plate are arranged in a cross groove plate in a cross shape and slide way, the cross groove plate is provided with an upper straight groove and a lower straight groove, and the cross guide groove is formed by the left straight groove and the right straight groove, a cross groove plate is arranged between the two double-straight-line slide rails, and the cross groove plate is fixed on the vertical plate.

2. The full-automatic equipment for locking multiple screws according to claim 1, wherein an input first station, a lifting positioning second station, a screw locking assembly third station, an unqualified transposition fourth station, an unqualified discharge fifth station and a qualified output sixth station are sequentially arranged in the conveying direction of the positioning stepping conveying mechanism; the material separating and discharging assembly is arranged at a second lifting and positioning station; the double-head multi-variety screw locking mechanism is arranged at a third station of the screw locking assembly; the unqualified sorting mechanism is arranged at an unqualified transposition fourth station; the unqualified material pushing mechanism is arranged at an unqualified material discharging fifth station, and the qualified product discharging mechanism is arranged at a qualified material discharging sixth station.

3. The full-automatic equipment for locking and attaching a plurality of screws as claimed in claim 2, wherein the positioning stepping conveying mechanism comprises two pairs of L-shaped supports arranged at intervals; the two pairs of L-shaped supports are used for fixing a pair of conveying frames which are arranged at intervals; the conveying frames are provided with conveying belts and connected through two fixing rods.

4. The full-automatic equipment for locking various screws as claimed in claim 1, wherein the double-head multi-variety screw locking mechanism comprises a supporting component, the bottom of the supporting component is mounted on the positioning stepping conveying mechanism, and the top of the supporting component is connected with a transverse spacing adjusting component; the transverse spacing adjusting component is connected with the locking component; the bottom of the locking component is provided with a screw dislocation locking supply component.

5. The fully automatic device for locking multiple screws of claim 1, the material separating and discharging assembly comprises two pairs of supports fixed on a base, the supports are connected with two pairs of optical axes, a pair of intermediate plates are fixed in the middle of the optical axes through supports, second air cylinders are arranged on the intermediate plates, herringbone plates are arranged at the upper ends of the four optical axes, a third air cylinder is arranged in the middle of the upper surfaces of the herringbone plates, double linear slide rails are arranged in the middle of the lower surfaces of the herringbone plates, slide blocks on the double linear slide rails are connected with an L-shaped plate, a push plate is hung in front of the L-shaped plate, a linear sliding pair is arranged in a triangular shape at the front end of the herringbone plate, the linear sliding pair comprises three linear bearings and three optical axes, the lower ends of the three optical axes are connected with a fixed plate, two limiting plates are connected with two ends of the fixed plate, and a distance detection sensor is arranged in the side wall of the limiting plate, and the two limiting plates limit the conveyed molded case circuit breaker base leftwards and rightwards.

6. The full-automatic equipment of a lock attached multiple screw of claim 1, characterized in that, unqualified letter sorting mechanism includes a pair of support of installing on the base, the support is connected with a pair of optical axis, the diaphragm passes through the side-mounting support and is fixed with the optical axis, the diaphragm openly is equipped with the double slide rail of vertical direction, be equipped with the fixed plate on the slider on the double slide rail, the fixed plate is connected with the fourth cylinder, the fourth cylinder is fixed at the diaphragm back, be equipped with the double straight line slider slide rail pair of horizontal direction parallel arrangement on the fixed plate, be fixed with the riser on the double straight line slider slide rail pair, be equipped with two splint on the riser, the riser is connected with the connecting plate, the connecting plate is connected with the slider fixed connection of rodless cylinder, rodless cylinder is fixed in the diaphragm upper end.