CN209380405U - Bearing shell intelligent recognition matching processing output machine - Google Patents

Abstract

The utility model relates to a kind of bearing shell intelligent recognitions to match processing output machine, including pairing deflecting machine, mark bearing shell part for chamfering bearing shell part to be assigned as bore hole to be processed in pairs；Pairing deflecting machine includes edge-on being placed with pairing input tape of the inner concave towards preceding line direction chamfering bearing shell part, pairing rack on the left of pairing input tape, the pairing swinging head swung above pairing rack and in horizontal plane is set, it is symmetrically positioned in pairing and swings both sides of head and the pairing left/right output band of input terminal and pairing input tape output end procedure connection, the output of pairing left/right is set with the pairing arcuate guide track between input terminal and pairing input tape output end and for deflecting conveying pairing input tape.

Description

Bearing bush intelligent identification matching processing output machine

Technical Field

The utility model relates to an axle bush intelligent recognition matches processing output machine and assembly method.

Background

The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process. It can also be said that the other members are used to reduce the friction coefficient during power transmission and to keep the center position of the shaft fixed when they move relative to each other on the shaft. The bearings can be classified into rolling bearings and sliding bearings according to the frictional properties of the moving elements. The bush is a part of the sliding bearing which is directly contacted with the shaft, is very smooth, is generally made of wear-resistant materials such as bronze, antifriction alloy and the like, and is in the shape of a bush-shaped semi-cylindrical surface. The bearing bush has the functions of bearing the acting force applied by the journal, keeping the oil film stable, enabling the bearing to work stably and reducing the friction loss of the bearing. The bearing shell generally comprises: the main bearing bush is arranged on a main bearing seat of the machine body and is used for reducing the friction resistance of the shaft neck and reducing the abrasion of the shaft neck; the thrust bearing bush is arranged on the inner side of the main bearing seat, bears the thrust of axial movement when the crankshaft rotates and has the function of reducing friction; and the crankshaft bearing bush is arranged on the fixed bracket of the crankshaft and the cylinder body.

When the sliding bearing works, a layer of thin oil film is required to be arranged between the bearing bush and the rotating shaft for lubricating. If the lubrication is poor, direct friction exists between the bearing bush and the rotating shaft, and the friction generates high temperature, and although the bearing bush is made of special high-temperature-resistant alloy materials, the high temperature generated by the direct friction is still enough to burn out the bearing bush. In addition, in order to reduce the friction force, the radian of the inner side surface of the bearing bush needs to be ensured, and the inner side surface of the bearing bush is polished to be smooth enough so as to reduce the friction force between the bearing bush and the shaft as much as possible.

In the prior art, the bearing bush is processed, and after the bearing bush needs to be fixed, the inner side face of the bearing bush is processed by using a cutter. The concrete mode is at the pivot front end installation cutter of motor, places the axle bush in accommodation space, and when the motor started, the pivot drove the rotatory counter shaft bush medial surface of cutter and processes. When the cutter rotates around the rotating shaft, the rotating shaft moves along the axis direction of the bearing bush, and the whole inner side surface of the bearing bush is machined.

However, since the machining of the bush by the tool is rough, the inner surface of the bush needs to be polished by using a material such as sandpaper in order to smooth the inner surface. And at present polish manually and realize, even after using the cutter to process the axle bush internal surface into needs shape, take off the axle bush, artifical use abrasive paper to polish the axle bush medial surface, until meeting the demands, not only the cost of labor is high, it is probably inhomogeneous to polish, and efficiency is still very low, awaits the improvement urgently. CN201210230281.0 an automatic processing equipment of axle bush, CN201520604639.0 an automatic beveler of axle bush etc. processing effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a bearing bush intelligent identification matching processing output machine in general; the technical problems to be solved and the advantages to be achieved are set forth in the description which follows and in the detailed description of the embodiments.

In order to solve the above problems, the utility model adopts the following technical proposal:

an intelligent bearing bush identification, matching and processing output machine comprises a pairing turning machine, a matching processing output machine and a matching processing output machine, wherein the pairing turning machine is used for allocating chamfer bearing bush pieces into boring hole marking bearing bush pieces to be processed in pairs;

the paired turning machine comprises a paired input belt, a paired rack, a paired swinging head and paired left/right output belts, wherein the paired input belt is provided with a chamfer bearing bush piece with an inner concave surface facing to the forward direction in a side standing mode, the paired rack is positioned on the left side of the paired input belt, the paired swinging head is arranged above the paired rack and swings on the horizontal plane, the paired left/right output belts are symmetrically positioned on two sides of the paired swinging head, and the input ends of the paired left/right output belts, the device comprises a pair of arc-shaped guide rails, a pair of central swing arms and a pair of left/right swing arms, wherein the pair of arc-shaped guide rails are arranged between the input ends of the pair of left/right output belts and the output ends of the pair of input belts and used for turning and conveying the pair of input belts, the pair of central swing arms are horizontally arranged on the pair of swing heads and used for shifting a chamfering shaft bush piece to one side of the pair of arc-shaped guide rails and contacting with the chamfering end face on the other side of the chamfering shaft bush piece, and the pair of left/right swing arms are arranged on two sides.

As a further improvement of the above technical solution: the utility model discloses still include the third conveyer belt, the third conveyer belt includes that the third that the output is less than the upper right input end down in a left side connects the material conveyer belt and the third output conveyer belt that the left side output process that right side input and third connect the material conveyer belt links up.

Drawings

Fig. 1 is a schematic structural diagram of the whole assembly line of the present invention. Fig. 2 is a schematic structural diagram of the whole assembly line. Fig. 3 is a schematic structural diagram of the feeding component of the present invention. Fig. 4 is a schematic structural view of the blanking member of the present invention. Fig. 5 is a schematic three-dimensional structure of the blanking member of the present invention. Fig. 6 is a schematic structural view of the linkage of the blanking members of the present invention. Fig. 7 is a schematic structural view of the pair machining part of the present invention. Fig. 8 is a schematic structural view of the chamfering unit according to the present invention. Fig. 9 is a schematic structural view of the mating member of the present invention. Fig. 10 is a schematic structural view of the clamp mechanism of the present invention. Fig. 11 is a schematic structural view of the machining tool of the present invention.

Detailed Description

As shown in fig. 1 to 11, the bearing bush intelligent identification matching machining output machine of the embodiment is a part of an automation control-based bearing bush machining system, and comprises

A loading member for outputting the bi-metal strip coil 2 as a rectilinear strip 6, comprising successive operations of connection

A feeder 1 to which a coiled bimetallic strip coil 2 is attached,

A first drawing machine 3 for outputting the double metal strip coil 2 as a straight strip 6,

A straightening machine 4 for straightening a straight strip piece 6, and

a second tractor 5 that outputs the straightened linear strip 6;

blanking forming part for processing a rectilinear strip 6 into a formed bimetal 14, comprising successive work steps

A first blanking machine 7 for blanking the linear strip 6 into a first cut piece 8,

A second blanking machine 10 for blanking the first cut piece 8 into a formed blanked piece 11,

A first conveyor belt 9 positioned between the first clicker 7 and the second clicker 10,

A forming press 13 for press-forming the formed blanked part 11 into a formed bimetal 14,

A second conveyor belt 12 between the second blanking machine 10 and the forming press 13, and

a third conveyor belt 15 at the output of the forming press 13 for outputting the formed bimetal 14;

the chamfer edge milling machine 16 is used for milling chamfers at two ends of the formed bimetal 14 into chamfer bearing bush pieces 17, and the input end of the chamfer edge milling machine 16 is connected with the output end of the third conveyor belt 15 in a working procedure;

a pair of direction changing machines 18 for distributing the chamfered bush pieces 17 into pairs of bore hole marking bush pieces 21 to be machined;

a machining part for boring marking and machining oil grooves for a bore marking shoe 21, comprising

A boring mark center 20 for boring and marking a bearing bush member 21 to be processed,

A boring clamp machine 19 which is connected with the receiving and matching direction-changing machine 18 in the working procedure and feeds materials to a boring marking center 20,

An oil groove machining center 23 for machining the bore hole marking bush piece 21 into a machined bush piece 24,

A groove milling fixture machine 22 which is connected with the boring fixture machine 19 and feeds materials to an oil groove processing center 23,

And a bush output belt 25 for outputting the machined bush piece 24 output by the groove milling jig 22.

The utility model comprises at least one of the following schemes;

in the first scheme, the feeding machine 1 comprises a feeding frame 31, a feeding inner supporting rotating shaft 32 horizontally arranged on the feeding frame 31, at least three feeding inner supporting push rods 33/cylinders radially arranged on the feeding inner supporting rotating shaft 32, a feeding inner supporting seat 34 arranged at the end of the feeding inner supporting push rod 33, a feeding inner supporting radial movable seat 35 radially movably arranged on the feeding inner supporting seat 34, a feeding inner supporting top 37 arranged at the end of the feeding inner supporting radial movable seat 35 and used for being in pressure contact with the inner side wall of the bimetallic strip coil 2, a feeding inner supporting radial spring 36 arranged between the feeding inner supporting top 37 and the feeding inner supporting seat 34, a feeding inner supporting process groove 38 arranged on the outer side wall of the feeding inner supporting top 37, at least three feeding outer supporting frames 39 circumferentially distributed on the feeding frame 31 in an array manner, and a feeding outer supporting movable pressing seat 40 radially arranged on the feeding outer supporting frame 39, A feeding outer supporting roller seat 41 which is arranged at the end part of the feeding outer supporting movable pressing seat 40 and is used for rolling contact with the outer side wall of the bimetallic strip coil 2, and a feeding outer supporting top spring 42/disc spring between the feeding outer supporting roller seat 41 and the feeding outer supporting frame 39;

the first traction machine 3 has the same structure as the second traction machine 5, and comprises a traction frame 43, a lower traction rotating shaft 44 arranged on the traction frame 43 and used for contacting with the lower surface of the linear strip 6, an upper traction adjusting push rod 45/air cylinder arranged on the upper end of the traction frame 43 in an inverted manner, and an upper traction adjusting rotating shaft 46 arranged at the lower end of the upper traction adjusting push rod 45 and used for contacting with the upper surface of the linear strip 6;

the straightening machine 4 comprises a straightening rack 47, a lower straightening rotary roller 48 which is arranged on the straightening rack 47, driven by a motor or a motor and used for contacting with the lower surface of the linear strip 6, and an upper straightening staggered roller 49 which is arranged on the straightening rack 47, used for contacting with the upper surface of the linear strip 6 and has a central line which is different from the central line of the lower straightening rotary roller 48;

the second solution is that the first blanking machine 7 includes a first blanking frame 50, a first blanking die 51 disposed on the first blanking frame 50 and configured to blank the linear strip 6 into the first cut 8, a first blanking guide groove 52 horizontally disposed on the first blanking die 51 in the longitudinal direction and configured to longitudinally convey the first cut 8, a first blanking upper roller 53/ball/roller disposed on the top wall and/or bottom of the first blanking guide groove 52 and configured to be in rolling contact with the first cut 8 or the linear strip 6, a first blanking notch 54 disposed on the first blanking die 51 and communicated with the first blanking guide groove 52, a first blanking head 55 disposed on the first blanking frame 50 in a lifting manner, a first blanking cutter 58 disposed at the lower end of the first blanking head 55 and configured to blank the linear strip 6 located in the first blanking notch 54 into the first cut 8, and a second blanking cutter 58, A first blanking limiting head 56 arranged to the left of the first blanking cutter 58 for longitudinally positioning the linear strip 6 and for inserting it down into the first blanking slot 54, first blanking indenters 57 arranged to the two sides of the first blanking cutter 58 for pressing down the linear strip 6 and for inserting it down into the first blanking slot 54, and a first blanking clearance 59 arranged on the conveyor at the left exit of the first blanking channel 52 for dropping off the cuttings;

the second blanking machine 10 comprises a second blanking machine frame 60, a second blanking head 62 which is arranged on the upper portion of the second blanking machine frame 60 in a lifting mode and used for blanking the first cut piece 8 into the formed blanking piece 11, a second conveying belt 66 which is arranged on the workbench of the second blanking machine frame 60, the input end of the second conveying belt is connected with the output end of the conveying belt at the left outlet of the first blanking machine 7, the second conveying belt is driven by a ratchet and pawl mechanism to convey leftwards in a one-way mode, a second blanking die 67 which is distributed on the second conveying belt 66 and used for placing the first cut piece 8 output by the conveying belt at the left outlet of the first blanking machine 7 and used for blanking the first cut piece 8 into the formed blanking piece 11, a second blanking upper top cylinder 61/push rod which is vertically arranged at the lower end of the workbench of the second blanking machine frame 60 and used for pushing the second blanking die 67 above the second blanking die, and a second blanking discharge outlet cylinder 65 which is arranged at the outlet of the second conveying belt 66 and is provided with chips for neutral A material guide plate 64, and a second servo linkage 63 disposed between the second blanking head 62 and the second conveyor belt 66;

the second servo linkage 63 includes a second up-down linkage rod 68 having an upper end connected to the lower end of the second punching head 62, a second up-down guide slot 69/guide sleeve/guide rail provided in the second punching frame 60 and allowing the second up-down linkage rod 68 to move up and down in the slot thereof, a second linkage connecting arm 70 having an upper end hinged to the lower end of the second up-down linkage rod 68, a second horizontal guide slot 71 horizontally provided on the table of the second punching frame 60, a second horizontal linkage arm 72 having a left end hinged to the lower end of the second linkage connecting arm 70 and allowing longitudinal movement in the second horizontal guide slot 71, a second horizontal toggle head 73 transversely provided on the cantilever end of the second horizontal linkage arm 72, a second right-angled triangular toggle block 74 having a right-angled root hinged to the inner annular side wall of the second conveyor 66 and a right-angled edge for contacting the inner annular side wall of the second conveyor 66 and another right-angled edge positioned on the right side of the right-angled edge of the second conveyor 66 when the second, And a second one-way return spring 75 provided between the hypotenuse of the second right-angled triangle paddle 74 and the inner ring side wall of the second conveyor belt 66;

when the second punching head 62 is located at the upper limit position, the second horizontal toggle head 73 sends the second punching die 67 carrying the first cut piece 8 to a position right below the second punching head 62 from right to left by contacting with the right-angled edge of the corresponding second right-angled triangular toggle block 74;

when the second blanking head 62 is located at the lower limit position, the second horizontal toggle head 73 moves to the right of the right-angled side of the next second blanking die 67 carrying the first cut piece 8 by contacting with the right-angled side of the corresponding second right-angled triangular toggle block 74;

the forming press 13 comprises a press forming pressure head 78 for pressing the formed blanking piece 11 into the formed bimetal 14, a press circulating transmission die 77 which is arranged on a workbench below the press forming pressure head 78, is used for placing the formed blanking piece 11 to press the formed bimetal 14 and is driven to carry the formed blanking piece in a leftward one-way transmission manner through a ratchet and pawl mechanism, an upper press top cylinder 76 which is arranged below the workbench below the press forming pressure head 78 and is used for jacking the press circulating transmission die 77, a press linkage mechanism 79 which is arranged between the press forming pressure head 78 and the press circulating transmission die 77 and has the same structure as the second servo linkage mechanism 63, and a press output front stop lever 80 which is arranged at the lower right side of the left outlet of the press circulating transmission die 77 and is used for changing the formed bimetal 14 in a horizontal state into a vertical side standing state;

the third conveyor belt 15 comprises a third material receiving conveyor belt with a right upper input end positioned below the output front stop lever 80 of the press and a left lower output end lower than the right upper input end, and a third output conveyor belt with a right side input end connected with a left side output end of the third material receiving conveyor belt in a working procedure;

the third scheme is that the chamfering edge milling machine 16 comprises a chamfering gantry frame 81, a chamfering conveyor belt 86 arranged on a worktable of the chamfering gantry frame 81, a chamfering crane 82 longitudinally arranged above the worktable of the chamfering gantry frame 81 in a lifting way, a chamfering profiling clamping telescopic arm 83 correspondingly horizontally arranged at the lower end of the chamfering crane 82 and used for clamping the side-erected forming bimetal 14, chamfering machine head drawing cylinders 84/push rods arranged at two sides of the upper end of the chamfering gantry frame 81 in a lifting way, and a chamfering milling head 85 horizontally arranged on a moving seat of the chamfering machine head drawing cylinders 84/push rods and used for milling chamfers at two ends of the forming bimetal 14 into the chamfering shaft bush part 17;

in the fourth scheme, the paired direction changing machine 18 comprises a paired input belt 87 with an inner concave surface facing towards the forward direction chamfer bearing piece 17 arranged on the side stand, a paired rack positioned on the left side of the paired input belt 87, a paired swinging head 90 arranged above the paired rack and swinging on a horizontal plane, paired left/right output belts 88 symmetrically positioned on two sides of the paired swinging head 90 and with input ends connected with the output end of the paired input belt 87 in a working procedure, the device comprises a pair of arc-shaped guide tracks 89 which are arranged between the input end of a pair of left/right output belts 88 and the output end of a pair of input belts 87 and are used for turning and conveying the pair of input belts 87, a pair of central swing arms 91 which are horizontally arranged on a pair of swing heads 90 and are used for shifting the chamfering shaft bush piece 17 to one side of the pair of arc-shaped guide tracks 89 and are in contact with the chamfering end face at the other side of the chamfering shaft bush piece 17, and a pair of left/right swing arms 92 which are arranged at two sides of the pair of central swing arms 91 and are used for righting and contacting with the inner concave face;

the boring jig machine 19 comprises two symmetrically arranged jig frames 93, a left output belt 88 and a right output belt 88 which are paired and provided with a left end output part and a middle transmission part respectively and are arranged on the corresponding jig frames 93 and used for longitudinally transmitting the boring mark bearing bush piece 21, a jig limit baffle 94 which is arranged on the jig frames 93 and used for preventing the chamfer bearing bush piece 17 from advancing, a jig profiling telescopic seat 95 which is transversely arranged on the jig frames 93, is positioned on the right side of the jig limit baffle 94 and is used for transversely and telescopically arranging the jig profiling telescopic seat above the middle part of the left output belt 88 and the right output belt 88, a jig profiling positioning arc groove 97 which is arranged at the end part of the jig profiling telescopic seat 95 and is used for positioning and contacting with the convex arc surface of the boring mark bearing bush piece 21 to be machined, a jig lower pressing plate air cylinder 96 which is arranged on the jig profiling telescopic seat 95 and is used for pressing and clamping the upper end side surface of the boring mark bearing, The clamp positioning/pushing air nozzle 99 is vertically arranged on one side of the left/right output belt 88 in pairing mode, comprises a clamp auxiliary lower bracket 100, a clamp transverse air cylinder 98 and a clamp positioning/pushing air nozzle 99, wherein the clamp auxiliary lower bracket 100 is vertically arranged on the clamp rack 93 and is used for driving a clamp profiling telescopic seat 95 to transversely move to the clamp auxiliary lower bracket 100, and the clamp positioning/pushing air nozzle 99 is arranged on the clamp profiling telescopic seat 95 and is used for conducting negative pressure positioning and adsorbing the outer side wall of a to-be-machined boring marking shaft bush piece 21 or used for conducting positive pressure to push the machined boring marking shaft bush piece 21 to the left/right output belt 88 on the;

the clamp copying telescopic seats 95 on the two sides move oppositely to mark the half-and-half boring holes in the clamp copying positioning arc-shaped groove 97 with the bearing bush pieces 21;

a tool frame 101 is provided between the two jig frames 93;

the boring mark center 20 includes a boring cutter elevating cylinder 110 vertically disposed on the cutter frame 101; a boring cutter pairing mark laser head 109 for marking pairing marks, an upper boring cutter auxiliary supporting assembly 108 sleeved on the cutter frame 101 through a bearing, a main boring cutter rod 106 and a lower boring cutter auxiliary sleeve 103 sleeved on the cutter frame 101 through a bearing are sequentially arranged on a piston rod of a boring cutter lifting cylinder 110 from top to bottom, and a boring cutter rotation driving motor 102 for driving the main boring cutter rod 106 to rotate is arranged on the cutter frame 101;

a boring cutter double-edge tool 107/single-edge boring cutter for boring and splicing the annular inner holes is radially inserted on the boring cutter main boring rod 106, boring cutter radial support push rods 104 are radially arranged on the boring cutter upper auxiliary support assembly 108 and/or the boring cutter lower auxiliary sleeve 103 in an array manner, and boring cutter radial support rollers 105 for pressure contact with the side walls of the spliced annular inner holes are arranged at the end parts of the boring cutter radial support push rods 104;

a groove milling fixture machine 22 with the same structure as the boring fixture machine 19 is arranged at the left output end part of the left/right output belt 88;

the oil groove machining center 23 includes an oil groove lifting cylinder 111 disposed on the cutter frame 101 and located on the left side of the boring mark center 20, a milling cutter seat is disposed on a piston rod at the lower end of the oil groove lifting cylinder 111, an oil groove milling cutter telescopic cylinder 114 is radially disposed on the milling cutter seat, an oil groove milling cutter rotating head 113 is disposed at the outer end of the oil groove milling cutter telescopic cylinder 114, an oil groove milling cutter 112 used for milling a groove in the boring mark bearing bush 21 is disposed on the oil groove milling cutter rotating head 113, an oil groove milling cutter rotating motor 115 used for driving the milling cutter seat to rotate around the piston rod of the oil groove lifting cylinder 111 is disposed on the oil groove lifting cylinder 111, an oil groove drill head 117 is disposed at the lower end of the milling cutter seat, and an oil groove drill head tool 116 used for drilling the boring mark bearing.

The assembling method of the bearing bush intelligent identification matching machining output machine comprises the following steps of firstly, assembling a feeding part; secondly, assembling, blanking and forming parts; step three, assembling the chamfering and edge milling machine 16; step four, assembling the pairing direction changer 18; step five, processing parts by an assembling machine; step six, assembling a bearing bush output belt 25; and step seven, sequentially connecting the assembling and feeding part, the blanking and forming part, the chamfering and edge milling machine 16, the pairing direction changer 18, the machining part and the bearing bush output belt 25 from right to left.

In steps one to five, at least one set of the following steps; wherein,

the following steps are included in the first step,

step one, assembling the feeding machine 1, firstly, installing a feeding rack 31 on the open ground of a workshop; then, a feeding inner support rotating shaft 32 and a feeding outer support frame 39 are respectively arranged on the feeding rack 31; secondly, a feeding inner support push rod 33/cylinder is radially arranged on the feeding inner support rotating shaft 32, a feeding inner support base 34 is arranged on a moving base of the feeding inner support push rod 33/cylinder, a feeding inner support radial moving base 35 is radially arranged on the feeding inner support base 34, and meanwhile, a feeding outer support moving pressing base 40 is radially arranged on a feeding outer support frame 39; thirdly, mounting a feeding inner supporting ejector 37 at the end part of the feeding inner supporting radial movable seat 35, and simultaneously mounting a feeding outer supporting roller seat 41 at the end part of a feeding outer supporting movable pressure seat 40; next, a feeding inner support radial spring 36 positioned between the feeding inner support seat 34 and the feeding inner support ejector 37 is sleeved on the feeding inner support radial movable seat 35, and meanwhile, a feeding outer support ejector spring 42/disc spring positioned between a feeding outer support frame 39 and a feeding outer support roller seat 41 is sleeved on a feeding outer support movable pressure seat 40 to adjust the spring pressure; finally, the bimetallic strip coil 2 is arranged between the feeding outer support roller seat 41 and the feeding inner support top 37;

step two, respectively assembling the first traction machine 3 and the second traction machine 5, firstly, installing a traction frame 43 on the ground; then, horizontally and transversely installing the lower pulling rotating shaft 44 on the pulling rack 43; secondly, installing a traction upper adjusting push rod 45/cylinder on a traction frame 43; thirdly, a pulling upper adjusting rotating shaft 46 is arranged at the lower end of the pulling upper adjusting push rod 45/air cylinder; finally, the bimetallic strip coil 2 is drawn between the lower drawing rotation shaft 44 and the upper drawing adjustment rotation shaft 46, while the lower pressure of the upper drawing adjustment push rod 45/cylinder is set;

step three, assembling the straightening machine 4, firstly, installing a straightening rack 47 on the ground; then, respectively installing a straightening lower rotating roller 48 and a straightening upper staggered roller 49 on a straightening frame 47, and adjusting the included angle of the axial lines of the straightening lower rotating roller 48 and the straightening upper staggered roller 49; finally, the straight strip 6 is passed through the gap between the lower straightening rotating roller 48 and the upper straightening interleaving roller 49;

the second step comprises the following steps of,

step two, assembling the first blanking machine 7, firstly, installing a first blanking machine head 55 and a first blanking die 51 on the first blanking machine frame 50; then, a first blanking limiting head 56, a first blanking ram 57 and a first blanking cutter 58 which are positioned right above the first blanking notch 54 of the first blanking die 51 are respectively installed below the first blanking head 55; secondly, a first blanking upper roller 53/ball/roller is installed on the top and/or bottom of the first blanking guide groove 52 of the first blanking die 51; again, the rectilinear strip member 6 is threaded into the first blanking guide slot 52; finally, according to the size of the blanking scraps, setting the size of a first blanking neutral position 59 of the conveyor belt at the left outlet of the first blanking guide groove 52;

step two, assembling the second blanking machine 10, firstly, installing a second punching head 62 on the upper part of a second blanking machine frame 60, and installing a second conveyor belt 66 with a ratchet-pawl one-way transmission piece on a workbench of the second blanking machine frame 60; then, a second blanking die 67 for blanking the first cut piece 8 into a formed blanking piece 11 is mounted on the second conveyor belt 66, a second blanking upper ejecting cylinder 61/push rod for ejecting the corresponding second blanking die 67 is mounted on the workbench and positioned right below the second blanking head 62, and a second blanking discharging guide plate 64 with a second discharging blanking neutral position 65 for dropping chips is mounted at the outlet of the second conveyor belt 66; secondly, a second servo linkage mechanism 63 for shifting the second conveyor belt 66 in a linkage manner is arranged between the second punching head 62 and the workbench;

step two, assembling a first servo linkage mechanism 63; first, the second upper and lower guide grooves 69/guide sleeves/guide rails and the second horizontal guide groove 71 are respectively installed on the second blanking frame 60; then, a second up-down linkage bar 68 is installed in the second up-down guide groove 69/guide sleeve/guide rail and the upper end thereof is hinged with the lower end of the second punching head 62, and at the same time, a second horizontal linkage arm 72 is horizontally installed in the second horizontal guide groove 71; secondly, the lower end of a second up-and-down linkage rod 68 is hinged with one end of a second horizontal linkage arm 72 through a second linkage connecting arm 70, and a second horizontal toggle head 73 is arranged at the end part of the second horizontal linkage arm 72; thirdly, a right angle part of a second right-angled triangle shifting block 74 is hinged on the side wall of the inner ring of the second conveyor belt 66, and a second one-way return spring 75 is arranged on the side wall of the inner ring of the second conveyor belt 66 and the hypotenuse of the second right-angled triangle shifting block 74 in a right angle; subsequently, the pressure of the second one-way return spring 75 is adjusted; the position of the second horizontal toggle head 73 is adjusted to meet the requirement that when the second punching head 62 is positioned at the upper limit position, the second horizontal toggle head 73 contacts with the right-angled edge of the corresponding second right-angled triangular shifting block 74 to send the second punching die 67 carrying the first cut piece 8 to the right below the second punching head 62 from right to left, and when the second punching head 62 is positioned at the lower limit position, the second horizontal toggle head 73 contacts with the corresponding second right-angled triangular shifting block 74 at the oblique-angled edge to move right to the right of the right-angled edge of the next second punching die 67 carrying the first cut piece 8;

step two, assembling the forming press 13, firstly, installing a press forming pressure head 78, arranging a press circulating transmission die 77 with a one-way ratchet and pawl mechanism on a workbench below the press forming pressure head 78, and installing a press upper ejection cylinder 76 right below the press forming pressure head 78 on the workbench; then, according to the third step, a press linkage mechanism 79 for linkage stirring of the press circular transmission mold 77 is arranged between the press forming pressure head 78 and the workbench; secondly, a press output front stop lever 80 for changing the forming bimetal 14 in a horizontal state into a vertical side standing state is arranged at the lower right part of the left outlet of the press circulating conveying die 77;

step two, firstly, a first conveyor belt 9 is arranged between the first blanking machine 7 and the second blanking machine 10; then, a second conveyor belt 12 is installed between the second clicker 10 and the forming press 13; thirdly, a third material receiving conveyor belt of a third conveyor belt 15 is obliquely arranged below the output front stop lever 80 of the press in a left-low and right-high mode; next, a third output conveyor belt of a third conveyor belt 15 is arranged at the right end of the third material receiving conveyor belt;

in the third step, the following steps are included, firstly, a chamfering conveyor belt 86 is installed on the workbench of the chamfering gantry frame 81; then, a chamfering crane 82 positioned above the chamfering conveyor belt 86 is longitudinally arranged on the chamfering gantry frame 81; secondly, chamfer profiling clamping telescopic arms 83 for clamping the side-standing formed bimetal 14 are symmetrically arranged at the lower end of the chamfer lifting frame 82; thirdly, chamfering machine head traction cylinders 84/push rods are arranged on the two sides of the chamfering gantry frame 81; then, a chamfering milling head 85 for milling and chamfering the two ends of the formed bimetal 14 into the chamfer bearing bush part 17 is arranged at the end part of the chamfering machine head traction cylinder 84/push rod; finally, connecting the input end of the chamfering conveyor belt 86 with a third output conveyor belt process of the third conveyor belt 15;

in step four there is included the step of,

first, the mating input belt 87 is connected to the output end of the chamfering conveyor belt 86; then, a mating swing head 90 is installed on the left side of the mating input belt 87, and mating left/right output belts 88 are installed on both sides of the mating swing head 90; secondly, a pair of arc-shaped guide rails 89 are installed between the pair of input belts 87 and the pair of left/right output belts 88; thirdly, a matched center swing arm 91 and a matched left/right swing arm 92 for shifting the chamfer bearing bush part 17 to the matched arc-shaped guide track 89 at one side are arranged on the matched swing head 90;

the following steps are included in the step five,

step five, assembling the boring jig machine 19, firstly, symmetrically installing two jig frames 93 at the outer sides of the middle parts of the paired left/right output belts 88, and meanwhile, installing the jig auxiliary lower brackets 100 at the inner sides of the middle parts of the paired left/right output belts 88; then, a fixture limiting baffle 94 for stopping the forward movement of the chamfer bearing bush piece 17 is transversely arranged on the fixture frame 93, and meanwhile, a fixture transverse cylinder 98 is arranged on the fixture frame 93; secondly, a clamp lower pressure plate cylinder 96 of a piston rod seat for pressing and clamping the side surface of the upper end of the to-be-machined boring mark bearing bush piece 21 is installed on a clamp profiling telescopic seat 95, and meanwhile, a clamp positioning/pushing air nozzle 99 for adsorbing the outer side wall of the to-be-machined boring mark bearing bush piece 21 in a negative pressure positioning mode or for pushing the machined boring mark bearing bush piece 21 to a paired left/right output belt 88 in the clamp profiling telescopic seat 95 in a positive pressure mode is installed on the clamp profiling telescopic seat 95; thirdly, adjusting the pressure of the fixture positioning/pushing air nozzle 99 to meet the requirement that the fixture profiling positioning arc-shaped groove 97 adsorbs the outward convex arc surface of the to-be-machined boring mark bearing bush piece 21; finally, adjusting the fixture profiling telescopic seats 95 to meet the requirement that the two fixture profiling telescopic seats 95 move oppositely to splice the half-and-half boring mark bearing bush pieces 21 positioned in the fixture profiling positioning arc-shaped grooves 97 into a circular ring shape;

step two, assembling the boring mark center 20, firstly, installing the cutter frame 101 between the two fixture frames 93; then, the boring cutter lifting cylinder 110 is mounted on the cutter frame 101; secondly, a boring cutter pairing mark laser head 109 for printing pairing marks, an upper boring cutter auxiliary supporting assembly 108 sleeved on the cutter frame 101 through a bearing, a main boring cutter rod 106 of the boring cutter, and a lower boring cutter auxiliary sleeve 103 sleeved on the cutter frame 101 through a bearing are sequentially arranged on a piston rod of a boring cutter lifting cylinder 110 from top to bottom; thirdly, a boring cutter rotation driving motor 102 which drives a boring cutter main boring rod 106 to rotate is installed on the cutter frame 101, meanwhile, a boring cutter double-blade cutter 107/single-blade boring cutter for boring and splicing the annular inner hole is installed on the boring cutter main boring rod 106 in the radial direction, and meanwhile, a boring cutter radial support push rod 104 is installed on an upper boring cutter auxiliary support assembly 108 and/or a lower boring cutter auxiliary sleeve 103 in the radial direction and in an array mode; then, the contact pressure of the boring cutter radial supporting roller 105 and the side wall of the spliced circular inner hole is adjusted through the boring cutter radial supporting push rod 104;

step five, referring to step five, assembling a groove milling fixture machine 22 on the left side of the boring fixture machine 19;

fifthly, assembling the oil groove machining center 23, namely firstly, installing an oil groove lifting cylinder 111 positioned on the left side of the assembling boring hole marking center 20 on the cutter frame 101; then, a milling cutter seat is installed at the lower end of the oil groove lifting cylinder 111; secondly, an oil groove drill head 117 is arranged below the milling cutter seat; thirdly, an oil groove milling cutter rotary motor 115 which is driven by key connection or gear rack driving to horizontally swing a milling cutter seat is installed on the cutter frame 101, an oil groove milling cutter telescopic cylinder 114 is installed on the milling cutter seat, an oil groove milling cutter rotary head 113 is installed at the end of the oil groove milling cutter telescopic cylinder 114, and an oil groove drill cutter 116 is installed on an oil groove drill head 117.

The high-precision and unmanned bearing bush machining method of the embodiment includes a feeding blanking forming method based on a feeding part and a blanking forming part, a chamfering method based on a chamfer milling machine 16, a pairing method based on a pairing turning machine 18 and/or a machining method based on a machining part, which are sequentially performed by means of a bearing bush machining system.

The method comprises at least one group of steps; wherein,

the feeding, blanking and forming method comprises the following steps,

step A, loading, namely firstly, placing the bimetallic strip coil 2 between a loading outer support roller seat 41 and a loading inner support top head 37, and adjusting the pressure of a loading inner support push rod 33, a loading inner support radial spring 36 and a loading outer support top spring 42/disc spring; then, the feeding inner support rotating shaft 32 is driven to drive the bimetallic strip coil 2 to output as a linear strip 6; secondly, adjusting the pressure of the upper traction adjusting push rod 45/cylinder on the linear strip piece 6, and driving the linear strip piece 6 to move forwards synchronously by drawing the lower rotating shaft 44 to rotate in a single direction; thirdly, driving a straightening lower rotating roller 48 and a straightening upper staggered roller 49 to rotate in a single direction to straighten the straight strip piece 6; finally, the material is output from the second traction machine 5;

step B, first blanking, namely, firstly, the linear strip 6 output in the step A enters a first blanking guide groove 52; secondly, when the left end of the rectilinear strip 6 abuts against the first blanking limiting head 56, the first blanking head 55 presses in the first blanking notch 54, and the first blanking cutter 58 blanks the bimetallic coil 2 into the first trim 8; the first blanking limiting head 56 moves upwards, the first cut piece 8 of the subsequent bimetallic strip coil piece 2 after being blanked is pushed towards the left side, and meanwhile, the cutting scraps fall from the first blanking neutral position 59;

step C, second blanking, namely firstly, the first cut piece 8 falls into a second blanking die 67, the second blanking head 62 goes upwards, and the second horizontal toggle head 73 contacts with the right-angled edge of a corresponding second right-angled triangular toggle block 74 to send the second blanking die 67 loaded with the first cut piece 8 to the position right below the second blanking head 62 from right to left; secondly, the second punching head 62 descends, the second horizontal toggle head 73 moves rightwards through contacting with the bevel edge of the corresponding second right-angled triangular toggle block 74 to the right of the bevel edge of the next second punching die 67 carrying the first cut piece 8, and simultaneously, the second punching upper jacking cylinder 61/push rod jacks up the lower surface of the second punching die 67; again, the second punch head 62 punches the first cut piece 8 into the formed punched piece 11; still later, the blanking head 62 goes up to feed the second blanking die 67 to the left simultaneously; subsequently, the formed punched part 11 is discharged via the second punch discharging guide plate 64 and the chips are dropped through the second discharging blanking gap 65;

step D, forming, in which first, the formed punched part 11 is output from the second blanking discharging guide plate 64 to the press circular transfer die 77; then, through the linkage of the second servo linkage mechanism 63, the press forming pressure head 78 presses down to form and simultaneously realize the feeding of the formed blanking part 11, and simultaneously the formed bimetal part 14 is output leftwards; secondly, when the formed bimetal 14 is output, the right side of the formed bimetal is blocked by the front output stop lever 80 of the press, and after the formed bimetal 14 is changed from a horizontal state to a side-standing state with an inward concave surface facing to the left, the formed bimetal is output through a third material receiving conveyor belt of a third conveyor belt 15 with a lower left and a higher right and a third output conveyor belt of the third conveyor belt 15;

in the chamfering method, the following steps are included;

step E, firstly, the chamfer conveying belt 86 receives the formed bimetal 14 output by the third conveying belt 15 and conveys the formed bimetal to the left; then, the chamfered copying gripping telescopic arm 83 grips the formed bimetal 14 and rises; secondly, the chamfering machine head traction cylinder 84/push rod drives the chamfering milling head 85 to process the formed bimetal 14 into the chamfering shaft bush part 17; thirdly, the chamfering crane 82 puts the chamfering bearing bush piece 17 on the chamfering conveyor belt 86, and the chamfering conveyor belt 86 conveys to the left;

in the pairing method, the following steps are included;

step F, matching, namely firstly, a matching input belt 87 receives the chamfering bearing bush piece 17 output by the chamfering conveyor belt 86 and transmits the chamfering bearing bush piece to the left; then, the paired swing head 90 drives the paired central swing arm 91 to contact with the other end face of the chamfering bearing bush piece 17, and simultaneously, the paired left/right swing arms 92 are in centering contact with the inner concave face of the chamfering bearing bush piece 17 which is being shifted; secondly, the counter-oscillating head 90 feeds the chamfered bearing bush pieces 17 along the corresponding counter-arcuate guide tracks 89 onto the left/right counter-output belts 88 on one side; again, the paired pendulums 90 swing back, repeating the above, bringing the next and thus the other side of the paired left/right output ribbons 88; finally, the paired left/right output belts 88 on both sides drive the respective chamfered bearing pads 17 to move leftward;

in a machining method, comprising the steps of;

g, clamping by a boring clamp, namely firstly, transversely moving a clamp profiling telescopic seat 95 to be in positioning contact with the outer convex cambered surface of the to-be-machined boring mark bearing bush piece 21; then, starting the clamp positioning/pushing air nozzle 99 to absorb the boring mark bearing bush piece 21 into the clamp profiling positioning arc-shaped groove 97; secondly, the clamp profiling telescopic seat 95 transversely conveys the boring mark bearing bush piece 21 to the upper part of the clamp auxiliary lower bracket 100, and the two boring mark bearing bush pieces 21 are spliced into a circular ring shape; thirdly, the clamp auxiliary lower bracket 100 lifts up to lift the clamp profiling telescopic seat 95 lower surface;

step H, boring marking, namely firstly, the boring cutter radial supporting roller 105 of the boring cutter lower auxiliary sleeve 103 supports against the inner side wall of the circular ring in the step G at the same time; then, the boring cutter rotation driving motor 102 and the boring cutter lifting cylinder 110 together drive the boring cutter double-edge cutter 107/single-edge boring cutter to bore the circular inner side wall; secondly, in the descending process, the boring cutter radial supporting roller 105 of the boring cutter upper auxiliary supporting assembly 108 supports against the inner side wall of the circular ring in the step G after processing; thirdly, the boring tool pairing-marking laser head 109 marks the pair of boring marking shoe pieces 21 according to the programming; finally, the boring fixtures clamp and drive the respective boring mark bearing bush pieces 21 to be returned to the paired left/right output belts 88, and the fixture positioning/pushing air nozzle 99 is started to send the boring mark bearing bush pieces 21 out of the fixture profiling positioning arc-shaped groove 97;

step J, clamping by an oil groove processing clamp, repeating the step G,

step K, firstly, the oil groove drill head 117 is started to drill the boring mark bearing bush piece 21; then, the oil groove lifting cylinder 111 drives the milling cutter seat to descend; secondly, the oil groove mill rotating head 113 processes the oil groove under the driving of the oil groove mill rotating motor 115; finally, the machined bore hole marking shoe element 21 is fed to the machined shoe element 24 on the mating left/right output belt 88 and out through the shoe output belt 25.

The feeding machine 1 is used for installing the bimetallic strip coiled part 2, the first traction machine 3 is used for preventing the bimetallic strip coiled part 2 from reversing, the ratchet and pawl can be adopted for preventing reversing, the double effects of looseness prevention and traction of the linear strip 6 are achieved, the straightening machine 4 is used for straightening complete strips, subsequent processing and positioning are facilitated, the second traction machine 5 is used for achieving the double effects of looseness prevention and traction, the linear strip 6 is changed into a sheet-shaped first cutting part 8 through the first blanking machine 7, the first conveying belt 9 and the second conveying belt 12 can be in chain transmission or belt transmission and the like, and the second blanking machine 10 is used for cutting in a fixed size mode to form a formed blanking part 11.

The feeding device comprises a feeding frame 31, a feeding inner support rotating shaft 32, a feeding inner support push rod 33, a feeding inner support seat 34, a feeding inner support radial movable seat 35, a feeding inner support radial spring 36, a feeding inner support jacking head 37, a feeding inner support process groove 38, a feeding outer support 39, a feeding outer support movable pressure seat 40, a feeding outer support roller seat 41 and a feeding outer support jacking spring 42, wherein the feeding inner support seat is used as a pressure seat, the feeding inner support radial movable seat 35 realizes guiding, the feeding inner support radial spring 36 realizes pressure compression to prevent a workpiece from collapsing, the feeding inner support jacking head 37 realizes static friction compression, the feeding inner support process groove 38 improves manufacturability through compression effect, the feeding outer support 39 is used as a support, the feeding outer support movable pressure seat. The pulling frame 43 is used as a reference, the pulling lower rotating shaft 44 is synchronously and unidirectionally driven, a ratchet pawl can be added to prevent reverse rotation, the pulling upper adjusting push rod 45 is used, and the pulling upper adjusting rotating shaft 46 realizes rolling pressure contact and is convenient for adjusting positive pressure. The straightening frame 47 is used for supporting, the lower straightening rotary roller 48 and the upper straightening staggered roller 49 are arranged in a staggered mode, so that the rigidity of the rollers is improved, uneven stress caused by gravity and flexibility is reduced, and the straightening effect is improved.

First blanking frame 50 is as supporting, first blanking mould 51 is the mould commonly used, first blanking guide slot 52 guarantees that the straight line of work piece vertically promotes to move ahead and fix a position, gyro wheel 53 reduces the resistance on the first blanking, first blanking notch 54 makes things convenient for the blanking, first blanking aircraft nose 55 lifting control, first blanking spacing head 56 realizes the scaling-off, righting when first blanking pressure head 57 realizes the blanking, first blanking cutter 58 carries out the blanking, first blanking neutral 59 makes the automatic collection that falls of smear metal, second blanking frame 60 is the benchmark, the top mould on the top cylinder 61 is gone up on the second blanking, avoid the conveyer belt atress, reasonable in design, second blanking head 62 is the standard component, second servo link gear 63 realizes the coordinated drive, the location is accurate, therefore, the carrier wave prepaid electric energy meter is low in cost, the simplified structure. The second blanking discharging guide plate 64 realizes output, the second discharging blanking neutral position 65 automatically drops cuttings, the second conveying belt 66 realizes conveying, the second blanking die 67 is common knowledge, the second upper and lower guide grooves 69 and the second horizontal guide groove 71 realize guiding, the second upper and lower linkage rods 68, the second linkage connecting arm 70, the second horizontal linkage arm 72 and the second horizontal toggle head 73 realize synchronous driving to change the up-and-down motion into left-and-right motion, the second right-angled triangle shifting block 74 and the second one-way reset spring 75 realize the effect of one-way driving and automatic reset.

The forming press 13 bends the strip into a forming bimetal 14 with an arc-shaped structure, and the third conveyor belt 15 realizes automatic reverse rotation of the forming bimetal 14, so that the forming bimetal is better erected in an inclined mode, and the subsequent processing is convenient. The upper top cylinder 76 of the press avoids the stress of the conveyor belt, the circular conveying die 77 of the press is an obvious conventional technology, the forming pressure head 78 of the press realizes the forming and pressing, the linkage mechanism 79 of the press is linked, and the output front stop lever 80 of the press changes the output state of the workpiece.

The chamfer edge milling machine 16 processes the inclined side edge of the workpiece after pressing into a chamfer bearing bush piece 17 in the radial direction, thereby facilitating the later assembly. The chamfering gantry frame 81 is used for supporting, the chamfering lifting frame 82 achieves lifting, the chamfering profiling clamping telescopic arm 83 achieves clamping, the chamfering machine head traction cylinder 84 and the chamfering milling head 85 achieve chamfering, and the chamfering conveyor belt 86 achieves conveying.

The pairing direction changing machine 18 realizes automatic pairing, manual selection is omitted, the mechanism is ingenious, and the cost is low;

the paired input belt 87 is used as a main input, the paired left/right output belt 88 is used as a branch conveying, the paired arc-shaped guide tracks 89 realize guide and direction change, the paired swing heads 90-the paired central swing arms 91 realize lateral pushing, the paired left/right swing arms 92 realize auxiliary righting, the reverse operation is prevented, no idle stroke exists in the back-and-forth action,

the groove milling fixture machine 22 and the oil groove processing center 23 realize that oil hole drilling of a workpiece is simultaneously used as a groove milling process hole, and the bearing bush piece 24 is subjected to surface quenching or qualitative treatment or directly put in storage after the bearing bush output belt 25 is output and processed.

The fixture frame 93 is used as a reference, the fixture limiting baffle 94 realizes positioning, the fixture profiling telescopic seat 95 realizes feeding, the fixture lower pressing plate air cylinder 96 realizes clamping of a workpiece, the fixture profiling positioning arc-shaped groove 97 and the fixture transverse air cylinder 98 realize positioning of the workpiece, the fixture positioning/pushing air nozzle 99 realizes adsorption and outward pushing of the workpiece, automatic operation is realized, the fixture auxiliary lower support seat 100 realizes auxiliary righting in machining, and the stress of the fixture profiling telescopic seat 95 hydraulic cylinder is avoided.

The boring fixture machine 19 and the boring mark center 20 realize the inner hole processing and mark of the boring mark bearing bush piece 21.

The boring tool is supported by a tool rack 101, a boring tool rotary driving motor 102 realizes rotary boring driving, a lower auxiliary sleeve 103 of the boring tool realizes lower end fixing and centering, a boring tool radial supporting push rod 104, a boring tool radial supporting roller 105 realizes adjustment of centering pressure and reduces friction force through rolling, a main boring rod 106 of the boring tool is used as a reference, a boring tool double-edge tool 107 bores an inner hole, an upper auxiliary supporting component 108 of the boring tool realizes auxiliary centering of a hole after boring, a boring tool pairing marking laser head 109 is convenient to distinguish, and a boring tool lifting cylinder 110 realizes downward driving of a hole auxiliary centering tool and cutting.

The oil groove lifting cylinder 111 realizes downward driving, the oil groove drill head 117 processes oil holes and serves as a groove milling process hole, and the combined motion of the oil groove milling cutter rotating head 113, the oil groove milling cutter telescopic cylinder 114 and the oil groove milling cutter rotating motor 115 realizes oil groove processing.

The utility model relates to a rationally, low cost, durable, safe and reliable, easy operation, labour saving and time saving, saving fund, compact structure and convenient to use.

Claims (2)

1. The bearing bush intelligent identification matching processing output machine is characterized by comprising a pairing turning machine (18) used for distributing chamfer bearing bush pieces (17) into paired to-be-processed bore hole marking bearing bush pieces (21);

the paired direction changing machine (18) comprises a paired input belt (87) with an inner concave surface facing to a forward direction chamfer shaft bush piece (17) placed on the side, a paired rack positioned on the left side of the paired input belt (87), a paired swinging head (90) arranged above the paired rack and swinging on a horizontal plane, a paired left/right output belt (88) symmetrically positioned on two sides of the paired swinging head (90) and with an input end connected with an output end of the paired input belt (87), a paired arc-shaped guide track (89) arranged between the input end of the paired left/right output belt (88) and the output end of the paired input belt (87) and used for turning and conveying the paired input belt (87), a paired central swinging arm (91) horizontally arranged on the paired swinging head (90) and used for shifting the chamfer shaft bush piece (17) to one side paired arc-shaped guide track (89) and in contact with a chamfer end face on the other side of the chamfer bearing bush piece (17), and a, And the paired left/right swing arms (92) are arranged on two sides of the paired central swing arm (91) and are used for righting and contacting with the inner concave surface of the chamfering bearing bush piece (17) which is poked.

2. The bearing shell intelligent identification matching machining output machine of claim 1, wherein:

the conveying device is characterized by further comprising a third conveying belt (15), wherein the third conveying belt (15) comprises a third material receiving conveying belt of which the left lower output end is lower than the right upper input end, and a third output conveying belt of which the right side input end is connected with the left side output end of the third material receiving conveying belt in a working procedure.