CN107487614B - Material conveying and positioning device - Google Patents

Material conveying and positioning device Download PDF

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Publication number
CN107487614B
CN107487614B CN201710749599.2A CN201710749599A CN107487614B CN 107487614 B CN107487614 B CN 107487614B CN 201710749599 A CN201710749599 A CN 201710749599A CN 107487614 B CN107487614 B CN 107487614B
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China
Prior art keywords
conveying
lifting
driving
limiting
positioning
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CN201710749599.2A
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Chinese (zh)
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CN107487614A (en
Inventor
龚德平
孙栋梁
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Kunshan Tuoyu Automation Technology Co ltd
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Kunshan Tuoyu Automation Technology Co ltd
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Publication of CN107487614A publication Critical patent/CN107487614A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22Devices influencing the relative position or the attitude of articles during transit by conveyors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/26Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of co-operating units, e.g. interconnected by pivots
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/08Control devices operated by article or material being fed, conveyed or discharged
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a material conveying and positioning device which comprises a conveying track, a controller and a workbench, wherein the conveying direction of a material is defined as the front, two conveying tracks in the front-back direction are arranged on the workbench, the two conveying tracks are respectively positioned at the left side and the right side of the workbench, the conveying track is provided with a variable-distance driving mechanism, the variable-distance driving mechanism drives the two conveying tracks to approach or separate so as to adjust the distance between the two conveying tracks, the conveying tracks are provided with conveying chains, the direction of the conveying chains is consistent with that of the conveying tracks, the conveying chains are connected with the conveying driving mechanism, a lifting plate is arranged above the workbench, a lifting driving mechanism for driving the lifting plate to move up and down is arranged below the lifting plate, front positioning blocks and rear positioning blocks matched with the material are arranged on the lifting plate, and the two positioning blocks are mutually close to or separate so as to clamp or unclamp the material through the front-back clamping driving mechanism. The whole production process adopts full-automatic control, liberates labor force and improves the production efficiency.

Description

Material conveying and positioning device
Technical Field
The invention belongs to the technical field of conveying machinery, and particularly relates to a conveying and positioning device for materials.
Background
A continuous conveying line or production line is formed by connecting a plurality of belt conveyors, chain conveyors, roller conveyors and the like in a head-to-tail mode on the processing and transporting sites of production workshops, packaging workshops and the like, and the conveying line or the production line mainly completes conveying of materials.
Particularly, in a processing production line of the flat lamp, the phenomenon of larger position deviation occurs after the flat lamp enters the next working procedure due to the narrow field space and the lack of an effective positioning device of the flat lamp, thereby influencing the product quality; in addition, the operation needs to be carried out by manual visual inspection to roughly position the flat lamp, so that the positioning precision is difficult to guarantee, the time consumption is long, the working efficiency is low, and the requirements of modern production cannot be met.
Disclosure of Invention
The invention mainly aims to provide a material conveying and positioning device, the whole production process adopts full-automatic control, manual operation is not needed, labor force is liberated, the production efficiency is improved, the device is particularly suitable for the assembly of a flat lamp production line, the rejection rate of the flat lamp is greatly reduced, and the quality of products is improved.
In order to solve the technical problems, the invention adopts one technical scheme as follows: the utility model provides a conveying and positioner of material, includes conveying track, controller and workstation, defines the direction of delivery of material as the place ahead, be equipped with two on the workstation fore-and-aft direction the conveying track and two the conveying track is located respectively the left and right sides of workstation, the conveying track is equipped with the displacement actuating mechanism, the displacement actuating mechanism drive two the conveying track is close to or keep away from in order to adjust the interval between two the conveying track, the conveying track is equipped with the conveyer chain and the direction of conveyer chain is unanimous with the direction of conveying track, the conveyer chain is connected with the conveying actuating mechanism, the top of workstation is equipped with the lifter plate, the below of lifter plate is equipped with the drive lifter plate reciprocates, be equipped with two front and back locating pieces that match with the material on the lifter plate, two the locating pieces are through preceding back clamping actuating mechanism realize being close to each other or keep away from in order to press from each other to press from both sides tight or loosen the material, two the outside of conveying track is equipped with a set of left and right clamping mechanism at least symmetrically;
the distance-changing driving mechanism, the conveying driving mechanism, the lifting driving mechanism, the front and rear clamping driving mechanism and the left and right clamping mechanism are respectively and electrically connected with the controller.
Further, the front-back clamping driving mechanism comprises a first driving motor and a belt pulley mechanism, the belt pulley mechanism comprises a driving wheel, a driven wheel and a conveying belt, the conveying belt is sleeved on the driving wheel and the driven wheel, the driving wheel is connected with an output shaft of the first driving motor, the driving wheel drives the conveying belt to do front-back direction circulating motion, the conveying belt is provided with a left half section and a right half section, one of the two positioning blocks is connected with the left half section of the conveying belt, and the other positioning block is connected with the right half section of the conveying belt.
Further, two guide rails in the front-back direction are arranged on the lifting plate, the two guide rails are respectively positioned at the left side and the right side of the lifting plate, and the left end and the right end of the positioning block extend downwards to form a structure matched with the guide rails so that the positioning block can move along the track direction.
Further, each positioning block comprises a supporting slide block and a limiting clamping block, the supporting slide blocks are transversely arranged and can be supported below materials, the limiting clamping blocks are fixed on the supporting slide blocks and protrude out of the upper surfaces of the supporting slide blocks, and the two supporting slide blocks are respectively connected to the left half section and the right half section of the conveying belt.
Further, the conveying driving mechanism comprises a driving shaft and a second driving motor, an output shaft of the second driving motor is connected with the driving shaft, two driving wheels are arranged on the driving shaft, and outer wheel surfaces of the two driving wheels are respectively connected with the two conveying chains in a matching mode.
Further, the variable-pitch driving mechanism comprises a bidirectional screw rod and a third driving motor for driving the bidirectional screw rod to operate, and two nuts on the bidirectional screw rod are respectively connected with two conveying tracks.
Further, the lifting driving mechanism comprises a lifting air cylinder for driving the lifting plate to move up and down, the lifting plate is located above the workbench, the lifting air cylinder is fixed on the workbench, at least one front lifting air cylinder and at least one rear lifting air cylinder are arranged on the lifting air cylinder, and a push rod of the lifting air cylinder is fixedly connected with the lifting plate.
Further, the lifting device further comprises a lifting limiting mechanism, the lower ends of push rods of the two lifting cylinders are provided with lifting limiting mechanisms for limiting lifting of the lifting cylinders, the lifting limiting mechanisms are located below the workbench, and each lifting limiting mechanism comprises a limiting strip and a limiting driving mechanism for driving the limiting strip to move back and forth. The one end of spacing is equipped with spacing groove and through-hole, the spacing groove with the through-hole intercommunication, the other end of spacing is equipped with the fork, the through-hole is located the spacing groove with between the fork, the spacing passes through the spacing groove with the fork overlaps respectively and realizes restricting lifting cylinder lifting on the push rod of lifting cylinder, the internal diameter of spacing groove with the internal diameter of fork is all less than lifting cylinder's push rod lower extreme external diameter just the internal diameter of spacing groove with the internal diameter of fork is all greater than lifting cylinder's external diameter, the internal diameter of through-hole is greater than lifting cylinder's external diameter, spacing actuating mechanism includes spacing cylinder and fixing base, spacing cylinder is fixed in the fixing base, the fixing base is fixed in the workstation.
Further, the left and right clamping mechanisms comprise clamping cylinders, the distances between adjacent clamping cylinders are equal, and the two groups of left and right clamping mechanisms are symmetrically distributed on the outer sides of the two conveying tracks.
Further, the material is a lamp frame of a flat lamp.
The beneficial effects of the invention are at least as follows:
1. according to the invention, the distance between the two conveying tracks is adjusted through the variable-distance driving mechanism, so that materials with different widths are adapted, when the materials are conveyed to the position right above the lifting plate through the conveying chain, the two positioning blocks are mutually close to each other through the front and rear clamping driving mechanisms so as to clamp the materials, the clamping cylinders at the two sides of the conveying tracks clamp the materials from the left side and the right side, so that the clamping and fixing of the materials can be rapidly realized, the processing and other operations of the materials are performed, the safety and reliability are realized, the clamping cylinders are reset, the two positioning blocks are mutually far away from each other through the front and rear clamping driving mechanisms so as to loosen the materials, the materials are conveyed to the downstream on the conveying tracks, the production efficiency can be improved, the whole production process adopts full-automatic control, the manual operation is not needed, the labor force is liberated, and the production efficiency is improved;
2. the front-rear clamping driving mechanism comprises a first driving motor, a driving wheel, a driven wheel and a conveying belt, wherein the conveying belt is sleeved on the driving wheel and the driven wheel, the driving wheel is connected with an output shaft of the first driving motor, the driving wheel drives the conveying belt to do front-rear direction circular motion, the first driving motor rotates forwards to drive two positioning blocks to be close to each other so as to clamp materials, and the first driving motor rotates reversely to drive the two positioning blocks to be far away from each other so as to loosen the materials, so that the materials are not easy to shake and shift in the production process, and the rejection rate of the materials is greatly reduced;
3. the upper surface of the supporting sliding block is sunken downwards to form a positioning hole, a sensor for monitoring the material feeding position is arranged in the positioning hole, when the sensor senses that the material is conveyed to the position above the positioning block, the sensor transmits signals to the controller, and the controller controls the lifting cylinder, the first driving motor and the clamping cylinder to operate, so that the accuracy of the material clamping and fixing device is improved;
4. according to the invention, the lifting limiting mechanisms for limiting the lifting of the lifting cylinders are arranged at the lower ends of the push rods of the two lifting cylinders, when the lifting cylinders are required to be limited to be lifted, the limiting cylinders push the limiting strips, so that the limiting grooves and the fork are respectively sleeved on the push rods of the two lifting cylinders to limit the lifting of the lifting cylinders, when the limiting cylinders are reset, the through holes are sleeved on the push rods of the lifting cylinders, and the lifting cylinders can be lifted to the maximum height, so that materials with different thicknesses are lifted to the same height.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the front and rear clamping drive mechanism of the present invention;
FIG. 4 is a schematic view of the lift stop mechanism of the present invention;
FIG. 5 is a schematic view of the lift drive mechanism of the present invention;
FIG. 6 is a schematic view of the structure of the stop bar of the present invention;
the components in the drawings are marked as follows:
the conveying track 1, the controller 2, the workbench 3, the variable-pitch driving mechanism 4, the bidirectional screw 41, the third driving motor 42, the transmission belt 43, the conveying chain 5, the conveying driving mechanism 6, the driving shaft 61, the second driving motor 62, the lifting plate 7, the lifting driving mechanism 8, the lifting cylinder 81, the guide rod 82, the positioning block 9, the supporting slide block 91, the limiting clamp block 92, the front-back clamping driving mechanism 10, the first driving motor 101, the belt pulley mechanism 102, the driving wheel 1021, the driven wheel 1022, the conveying belt 1023, the guide rail 11, the positioning groove 12, the lifting limiting mechanism 13, the limiting bar 131, the limiting groove 1311, the through hole 1312, the fork 1313, the limiting cylinder 1321, the fixing seat 1322, the clamping cylinder 14 and the positioning hole 15.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Examples: 1-6, the invention includes conveying track 1, control device 2 and work table 3, define the conveying direction of the supplies as the front, there are said conveying track of two front and back directions and said two said conveying track locate at left and right sides of said work table separately on said work table, said conveying track has drive mechanism 4 of variable pitch, said drive mechanism of variable pitch drives two said conveying track to get close to or keep away from in order to adjust the interval between two said conveying tracks, said conveying track has conveying chain 5 and said conveying chain's direction is identical with said conveying track's direction, said conveying chain is connected with the drive mechanism 6 of conveying, there are lifting plates 7 above said work table, there are lifting drive mechanisms 8 driving said lifting plates to move up and down below, there are two front and back locating pieces 9 that match with said supplies on said lifting plates, realize getting close to each other or keeping away from in order to clamp the supplies through the drive mechanism 10 of front and back clamping drive mechanism, two said conveying track have at least one group of left and right clamping mechanisms symmetrically;
the variable-pitch drive mechanism 4, the conveying drive mechanism 6, the lifting drive mechanism 8, the front-rear clamping drive mechanism 10 and the left-right clamping mechanism are respectively and electrically connected with the controller 2.
The front-rear clamping driving mechanism 10 comprises a first driving motor 101 and a belt pulley mechanism 102, the belt pulley mechanism comprises a driving wheel 1021, a driven wheel 1022 and a conveying belt 1023, the conveying belt is sleeved on the driving wheel and the driven wheel, the driving wheel is connected with an output shaft of the first driving motor, the driving wheel drives the conveying belt to do front-rear direction circular motion, the conveying belt is provided with a left half section and a right half section, one of two positioning blocks 9 is connected with the left half section of the conveying belt, and the other positioning block is connected with the right half section of the conveying belt.
In this embodiment, the forward rotation of the first driving motor 101 drives the two positioning blocks 9 to approach each other to clamp the material, and the reverse rotation of the first driving motor drives the two positioning blocks to depart from each other to loosen the material.
The lifting plate 7 is provided with two guide rails 11 in the front-back direction, the two guide rails are respectively positioned at the left side and the right side of the lifting plate, and the left end and the right end of the positioning block 9 extend downwards to form a structure matched with the guide rails so that the positioning block can move along the track direction.
In specific implementation, the left and right ends of the positioning block 9 extend downwards to form a raised line, the lower surface of the raised line is recessed upwards to form a positioning groove 12 matched with the guide rail, and the two positioning blocks are close to or far away from the surface of the lifting plate through the cooperation of the positioning groove and the guide rail 11. The section shape of the positioning groove is rectangular, trapezoidal or semicircular.
Each positioning block 9 comprises a supporting slide block 91 and a limiting clamping block 92, the supporting slide blocks are transversely arranged and can be supported below materials, the limiting clamping blocks are fixed on the supporting slide blocks and protrude out of the upper surfaces of the supporting slide blocks, and the two supporting slide blocks are respectively connected to the left half section and the right half section of the conveying belt 1023.
Preferably, the limiting clamping blocks 92 of the front positioning block of the front and rear positioning blocks 9 are positioned at the forefront end of the front positioning block, the limiting clamping blocks of the rear positioning block are positioned at the rearmost end of the rear positioning block, and the number of the limiting clamping blocks on each positioning block is two and the limiting clamping blocks are respectively positioned at the left end and the right end of the two positioning blocks.
In this embodiment, the upper surface of the supporting slider 91 is recessed downward to form a positioning hole 15, and a sensor for monitoring the material in place is disposed in the positioning hole, and the sensor is electrically connected with the controller 2.
Preferably, the sensor is an infrared sensor.
The conveying driving mechanism 6 comprises a driving shaft 61 and a second driving motor 62, an output shaft of the second driving motor is connected with the driving shaft, two driving wheels are arranged on the driving shaft, and outer surfaces of the two driving wheels are respectively connected with the two conveying chains 5 in a matching mode.
The variable-pitch driving mechanism 4 comprises a bidirectional screw rod 41 and a third driving motor 42 for driving the bidirectional screw rod to operate, and two nuts on the bidirectional screw rod are respectively connected with two conveying tracks 1.
In this embodiment, the bidirectional screw 41 is connected to the third driving motor 42 through a driving belt 43, the forward rotation of the third driving motor drives the two conveying tracks to approach each other, and the reverse rotation of the third driving motor drives the two conveying tracks to separate from each other.
The lifting driving mechanism 8 comprises a lifting air cylinder 81 for driving the lifting plate to move up and down, the lifting plate 7 is located above the workbench 3, the lifting air cylinder is fixed on the workbench, at least one front lifting air cylinder and at least one rear lifting air cylinder are arranged on the lifting air cylinder, and a push rod of the lifting air cylinder is fixedly connected with the lifting plate.
As an equivalent alternative of this embodiment, the lifting cylinder 81 is fixed below the table 3 and the push rod of the lifting cylinder passes upward through the table to be connected with the lifting plate 7.
In this embodiment, at least one guide rod 82 is disposed on the lower surface of the lifting plate 7, and the upper end of the guide rod is fixedly connected with the lifting plate, and the lower end of the guide rod passes through the workbench 3.
Still include lifting stop gear 13, two lifting cylinder 81's push rod lower extreme is equipped with the restriction lifting cylinder is lifted lifting stop gear just lifting stop gear is located workstation 3's below, lifting stop gear includes spacing 131 and drive spacing drive mechanism that spacing reciprocated. The one end of spacing is equipped with spacing groove 1311 and through-hole 1312, the spacing groove with the through-hole intercommunication, the other end of spacing is equipped with fork 1313, the through-hole is located the spacing groove with between the fork, the spacing passes through the spacing groove with the fork overlaps respectively and realizes restricting the lifting cylinder lifting on the push rod of two lifting cylinder, the internal diameter of spacing groove with the internal diameter of fork is all less than the push rod lower extreme external diameter of lifting cylinder just the internal diameter of spacing groove with the internal diameter of fork is all greater than the external diameter of the push rod of lifting cylinder, the internal diameter of through-hole is greater than the external diameter of the push rod of lifting cylinder, spacing actuating mechanism includes spacing cylinder 1321 and fixing base 1322, spacing cylinder is fixed in the fixing base, the fixing base is fixed in the workstation.
In this embodiment, fixing base 1322 is located limit bar 131's top just the fixing base is fixed in on the workstation, be equipped with limit cylinder 1321 on the limit bar just limit cylinder is located the fixing base with between the limit bar, limit cylinder's push rod both ends with the fixing base is connected, when needs restriction the lifting cylinder 81 is lifted, limit cylinder promotes limit bar, makes limit groove with the fork overlaps respectively two realize restricting lifting cylinder lifting on the push rod of lifting cylinder, when limit cylinder resets, the through-hole cover is in on the push rod of lifting cylinder, the lifting cylinder can be lifted to the maximum height.
The thickness of the limit strips 131 is 10-18mm.
Preferably, the thickness of the limiting strip 131 is 14mm.
The left and right clamping mechanisms comprise clamping cylinders 14, the distances between adjacent clamping cylinders are equal, and the two groups of left and right clamping mechanisms are symmetrically distributed on the outer sides of the two conveying tracks 1.
The material is a lamp frame of a flat lamp.
The invention has the following working principle that after materials are assembled and processed at an upstream station on a production line, the materials are conveyed downstream through the conveying tracks, the distance between the two conveying tracks is adjusted through the variable-distance driving mechanism, so that the device is suitable for materials with different widths, when the materials reach between the two positioning blocks, a sensor for monitoring the material feeding position is arranged in the positioning hole to sense that the materials are conveyed to the position above the positioning blocks, the sensor conveys signals to the controller, the controller controls the lifting cylinder, the first driving motor and the clamping cylinder to operate, the lifting cylinder lifts the materials on the lifting plate, the two positioning blocks are mutually close through the front clamping driving mechanism and the rear clamping driving mechanism to clamp the materials, the clamping cylinders on the two sides of the conveying tracks clamp the materials from the left side and the right side, the clamping fixation of the materials can be quickly realized, the processing operation of the materials is performed, the device is safe and reliable, the clamping cylinders are reset later, the two positioning blocks are mutually far away from each other through the front clamping driving mechanism and the rear clamping driving mechanism to loosen the materials, the lifting cylinder is reset, the lifting plate descends, the materials are conveyed downstream on the conveying tracks, and the production efficiency can be improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.

Claims (8)

1. A material conveying and positioning device, which is characterized in that: the automatic material feeding device comprises a conveying rail (1), a controller (2) and a workbench (3), wherein the conveying direction of a material is defined as the front, two conveying rails in the front and back directions are arranged on the workbench, the two conveying rails are respectively positioned at the left side and the right side of the workbench, the conveying rails are provided with a variable-distance driving mechanism (4), the variable-distance driving mechanism drives the two conveying rails to approach or separate so as to adjust the distance between the two conveying rails, the conveying rails are provided with conveying chains (5) and the direction of the conveying chains is consistent with the direction of the conveying rails, the conveying chains are connected with conveying driving mechanisms (6), lifting plates (7) are arranged above the workbench, lifting driving mechanisms (8) for driving the lifting plates to move up and down are arranged below the lifting plates, front and back positioning blocks (9) matched with the material are arranged on the lifting plates, the two positioning blocks are mutually approached or separated so as to clamp or loosen the material through front and back clamping driving mechanisms (10), and at least one group of left and right clamping mechanisms are arranged outside the two conveying rails;
the variable-pitch driving mechanism, the conveying driving mechanism, the lifting driving mechanism, the front and rear clamping driving mechanism and the left and right clamping mechanism are respectively and electrically connected with the controller;
the front-rear clamping driving mechanism comprises a first driving motor (101) and a belt pulley mechanism (102), the belt pulley mechanism comprises a driving wheel (1021), a driven wheel (1022) and a conveying belt (1023), the conveying belt is sleeved on the driving wheel and the driven wheel, the driving wheel is connected with an output shaft of the first driving motor, the driving wheel drives the conveying belt to do front-rear direction circular motion, the conveying belt is provided with a left half section and a right half section, one of the two positioning blocks is connected with the left half section of the conveying belt, and the other positioning block is connected with the right half section of the conveying belt;
each positioning block comprises a supporting slide block (91) and a limiting clamping block (92), the supporting slide blocks are transversely arranged and can be supported below materials, the limiting clamping blocks are fixed on the supporting slide blocks and protrude out of the upper surfaces of the supporting slide blocks, and the two supporting slide blocks are respectively connected to the left half section and the right half section of the conveying belt;
the lifting driving mechanism comprises a lifting cylinder (81) for driving the lifting plate to move up and down;
the lifting device further comprises lifting limiting mechanisms (13), wherein the lower ends of push rods of the two lifting cylinders are provided with the lifting limiting mechanisms for limiting the lifting of the lifting cylinders, the lifting limiting mechanisms are positioned below the workbench, and each lifting limiting mechanism comprises a limiting strip (131) and a limiting driving mechanism for driving the limiting strip to move forwards and backwards;
one end of the limiting strip is provided with a limiting groove (1311) and a through hole (1312), the limiting groove is communicated with the through hole, the other end of the limiting strip is provided with a fork (1313), the through hole is positioned between the limiting groove and the fork, and the limiting strip is sleeved on push rods of two lifting cylinders respectively through the limiting groove and the fork to realize lifting of the lifting cylinders;
the upper surface of the supporting sliding block is sunken downwards to form a positioning hole, and a sensor for monitoring the material feeding position is arranged in the positioning hole.
2. A device for transporting and positioning material as defined in claim 1, wherein: the lifting plate is provided with two guide rails (11) in the front-back direction, the two guide rails are respectively positioned at the left side and the right side of the lifting plate, and the left end and the right end of the positioning block extend downwards to form a structure matched with the guide rails so that the positioning block can move along the track direction.
3. A device for transporting and positioning material as defined in claim 1, wherein: the conveying driving mechanism comprises a driving shaft (61) and a second driving motor (62), an output shaft of the second driving motor is connected with the driving shaft, two driving wheels are arranged on the driving shaft, and outer wheel surfaces of the two driving wheels are respectively connected with the two conveying chains in a matching mode.
4. A device for transporting and positioning material as defined in claim 1, wherein: the variable-pitch driving mechanism comprises a bidirectional screw rod (41) and a third driving motor (42) for driving the bidirectional screw rod to operate, and two nuts on the bidirectional screw rod are respectively connected with two conveying tracks.
5. A device for transporting and positioning material as defined in claim 1, wherein: the lifting plate is located above the workbench, the lifting air cylinder is fixed to the workbench, and is provided with at least one front lifting air cylinder and one rear lifting air cylinder, and a push rod of the lifting air cylinder is fixedly connected with the lifting plate.
6. A device for transporting and positioning material as defined in claim 1, wherein: the inner diameter of the limiting groove and the inner diameter of the fork are smaller than the outer diameter of the lower end of the push rod of the lifting cylinder, the inner diameter of the limiting groove and the inner diameter of the fork are larger than the outer diameter of the push rod of the lifting cylinder, the inner diameter of the through hole is larger than the outer diameter of the push rod of the lifting cylinder, the limiting driving mechanism comprises a limiting cylinder (1321) and a fixing seat (1322), the limiting cylinder is fixed on the fixing seat, and the fixing seat is fixed on the workbench.
7. A device for transporting and positioning material as defined in claim 1, wherein: the left and right clamping mechanisms comprise clamping cylinders (14), the distances between adjacent clamping cylinders are equal, and the two groups of left and right clamping mechanisms are symmetrically distributed on the outer sides of the two conveying tracks.
8. A device for transporting and positioning material as defined in claim 1, wherein: the material is a lamp frame of a flat lamp.
CN201710749599.2A 2017-08-28 2017-08-28 Material conveying and positioning device Active CN107487614B (en)

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