CN107350555B - Automatic blanking measurement system for rail sawing - Google Patents
Automatic blanking measurement system for rail sawing Download PDFInfo
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- CN107350555B CN107350555B CN201710619229.7A CN201710619229A CN107350555B CN 107350555 B CN107350555 B CN 107350555B CN 201710619229 A CN201710619229 A CN 201710619229A CN 107350555 B CN107350555 B CN 107350555B
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- 238000005259 measurement Methods 0.000 title claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 134
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 114
- 239000010959 steel Substances 0.000 claims abstract description 114
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 36
- 238000003825 pressing Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 14
- 238000003754 machining Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
- B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a steel rail sawing automatic blanking measurement system, which comprises: a material conveying frame for conveying steel rails; the first limiting mechanism is arranged on one side of the material conveying frame, close to the steel rail inlet, and limits the horizontal position of the steel rail on the material conveying frame relative to the first guiding mechanism so that the steel rail can enter the first guiding mechanism; the first guide mechanism is arranged between the first limit mechanism and the sawing device, is of a conical structure with an inlet larger than an outlet, and is arranged in a way that the inlet faces the first limit mechanism and the outlet faces the inlet of the sawing device; the first length measuring mechanism is arranged between the outlet of the first guiding mechanism and the inlet of the sawing device or between the outlet of the first guiding mechanism and the inlet of the sawing device, measures the extension length of the steel rail relative to the cutting member of the sawing device, and cuts the steel rail when the extension length reaches a set length. The system realizes accurate control of the steel rail feeding process and accurate measurement of the steel rail, improves the working efficiency and reliability, prolongs the service life of equipment and improves the machining precision of the steel rail.
Description
Technical Field
The invention relates to the technical field of rail cutting, in particular to a rail sawing automatic blanking measurement system.
Background
At present, most of sawing machines in China need to be fed by manpower, and the sawing machines are high in labor intensity and low in efficiency. In the sawing process, each section is finished, the feeding needs to be continued manually, the manual measurement is low in efficiency, the manual labor intensity is high, the automation degree is low, safety accidents are easy to occur, and the special difficulty is brought to heavier steel rails.
Along with the gradual improvement of the social automation degree, although the rail length is measured by a laser ranging mode, the method is low in general precision, high in cost and weak in adaptability. Is unfavorable for large-area popularization.
Disclosure of Invention
Aiming at the defects of the prior art equipment, the invention provides the automatic blanking measurement system for the rail sawing, which realizes the accurate control of the rail feeding process and the accurate measurement of the rail, optimizes the working efficiency of the prior equipment, improves the safety and the reliability of the prior equipment, and prolongs the service life of the equipment and the processing precision of the rail.
In order to achieve the above purpose, the invention provides an automatic blanking measurement system for rail sawing, which comprises a material conveying frame, a first limiting mechanism, a first guiding mechanism and a first length measuring mechanism, wherein the material conveying frame is used for conveying rails, and the first limiting mechanism is arranged at one side of the material conveying frame, which is close to a rail inlet, and is used for limiting the horizontal position of the rails on the material conveying frame relative to the first guiding mechanism so that the rails can enter the first guiding mechanism; the first guide mechanism is arranged between the first limit mechanism and the sawing equipment and is of a conical structure with an inlet larger than an outlet, the inlet of the first guide mechanism faces the first limit mechanism, and the outlet of the first guide mechanism faces the inlet of the sawing equipment; the first length measuring mechanism is arranged between the outlet of the first guiding mechanism and the inlet of the sawing device or between the outlet of the first guiding mechanism and the inlet of the sawing device and is used for measuring the extension length of the steel rail relative to the cutting member of the sawing device, and when the extension length reaches a set length, the sawing device cuts the steel rail.
The automatic unloading measurement system of rail saw cuts, wherein, first stop gear includes arm, connecting slider, guide arm and sets up proximity switch on the guide arm, wherein, the arm is L type, one end hooks the rail, and the other end is in through connecting slider slide on the guide arm for the rail is corresponding to slide on fortune work or material rest, when the rail arrives can get into first guide mechanism's horizontal position, the arm triggers when proximity switch, the arm stops moving, thereby has restricted the position of rail.
The automatic unloading measurement system of rail saw cuts, wherein, still include limit rolling dog, including support, connecting rod and roller, wherein, support one end is fixed on the fortune work or material rest, the other end sets up the connecting rod, the roller surrounds outward the connecting rod, through the rolling contact of roller and rail, carry out spacingly to the rail.
Preferably, the device further comprises a second limiting mechanism, wherein the second limiting mechanism is arranged between the first limiting mechanism and the first guiding mechanism and comprises at least one limiting rolling stop block.
Preferably, the first guide mechanism comprises a plurality of pairs of limit rolling stops, and the limit rolling stops are arranged in a conical shape along two sides of the steel rail.
The automatic blanking measurement system for rail sawing is characterized in that the first length measurement mechanism comprises a lower pressing wheel set, an encoder measurement set and a swing rod mechanism, wherein the lower pressing wheel set and the encoder measurement set are movably connected through the swing rod mechanism, the lower pressing wheel set comprises a lower pressing wheel and a first bearing seat, the lower pressing wheel is arranged on the first bearing seat, and the height of the lower pressing wheel is higher than that of the bottom surface of a rail; the encoder measuring set comprises an encoder measuring wheel, an encoder and a second bearing, wherein the encoder measuring wheel is arranged on the second bearing, the height of the encoder measuring wheel is lower than the bottom surface of the steel rail, and the encoder measuring wheel is coaxially connected with the encoder; the swing rod mechanism comprises a swing rod, a shaft sleeve, a guide rod and a third bearing seat, one end of the swing rod is connected with the first bearing seat, the other end of the swing rod is connected with the shaft sleeve, one end of the guide rod is connected with the shaft sleeve, the other end of the guide rod is connected with the second bearing seat, and the shaft sleeve is arranged on the third bearing seat; the steel rail enters from one side of the encoder measurement set, slides out from one side of the lower pressing wheel set, and slides above the encoder measurement wheel without contacting the encoder measurement wheel, and the pressing wheel is pressed down, so that the pressure of the encoder measurement wheel movably connected with the lower pressing wheel is increased on the bottom surface of the steel rail, the encoder measurement wheel rotates along with the sliding of the steel rail, and the encoder measures the length of the sliding steel rail by recording the number of turns of the encoder measurement wheel.
The automatic measurement system for rail sawing has the following beneficial effects:
(1) The automatic unloading measurement system for rail sawing can realize automation in the sawing process, reduce labor force, completely monitor and process data only by controlling the operation of the whole sawing production line through the man-machine interaction interface of the touch screen, improve production efficiency and product quality, and simultaneously prolong the service life of sawing equipment.
(2) The adjustable limit rolling stop block in the automatic blanking measurement system for rail sawing can effectively realize the functions of limiting and guiding, and has obvious effect.
(3) The first stop gear and the second stop gear of the automatic unloading measurement system of rail saw cut are used in the cooperation, can effectually reduce the friction between rail and the equipment, increase equipment life, improve work efficiency and security.
(4) The automatic measurement system for rail sawing can realize accurate control of the feeding speed of the material conveying frame in the sawing process, effectively reduce position errors caused by inertia action and improve the quality and precision of products.
Drawings
The above-mentioned features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof, taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic diagram of an automated rail sawing blanking measurement system according to the present invention;
FIG. 2 is a schematic view of a limit rolling stop of the present invention limiting a rail;
FIG. 3 is a block diagram of a preferred embodiment of the rail sawing automated blanking measurement system of the present invention;
FIG. 4 is a schematic view of a first length measuring mechanism and a second length measuring mechanism of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art will recognize that the described embodiments may be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope. Furthermore, in the present specification, the drawings are not drawn to scale, and like reference numerals denote like parts.
Fig. 1 is a schematic diagram of the rail sawing automatic blanking measurement system according to the present invention, as shown in fig. 1, the rail sawing automatic blanking measurement system 100 includes a material conveying frame 110, a first limiting mechanism 120, a first guiding mechanism 130 and a first length measuring mechanism 140, wherein:
the material conveying frame 110 is used for conveying the steel rail 1;
the first limiting mechanism 120 is disposed at a side of the material conveying frame 110 near the steel rail inlet, and is used for limiting the horizontal position of the steel rail on the material conveying frame 110 relative to the first guiding mechanism 130, so that the steel rail 1 can enter the first guiding mechanism 130;
the first guiding mechanism 130 is disposed between the first limiting mechanism 120 and the sawing device 10, and has a tapered structure with an inlet larger than an outlet, the inlet of the first guiding mechanism 130 faces the first limiting mechanism 120, and the outlet faces the inlet of the sawing device 10;
the first length measuring mechanism 140 is disposed between the outlet of the first guiding mechanism 130, the outlet of the first guiding mechanism 130 and the inlet of the sawing device 10, or the inlet of the sawing device 10, and is used for measuring the extension length of the steel rail 1 relative to the cutting member 11 (such as a circular saw blade, a saw blade, etc.) of the sawing device 10, and when the extension length reaches a set length, the sawing device cuts the steel rail 10.
The material conveying frame 110 can be a conveying steel rail in the form of a conveying belt or a conveying roller, preferably, the material conveying frame 110 comprises a bottom frame 111, rollers 112 arranged on the bottom frame 111 and a motor (not shown) for driving the rollers 112 to rotate, the rollers 112 can be composed of sleeves, rolling shafts and bearings, the rolling shafts are fixed on the bottom frame 111 through pins, the pins and the bottom frame adopt interference fit, the bearings are arranged in the rolling shafts, the positions of the rolling shafts on the pins are limited by the sleeves, and a frequency converter is used for driving the motor to control the steel rail to move in the steel rail feeding process, so that inertia and measurement errors in the steel rail moving process are reduced.
The first limiting mechanism 120 may be a limiting stop or a combination of a limiting stop and a limiting switch, preferably, as shown in fig. 1, the first limiting mechanism 120 includes a mechanical arm 121, a connecting slider 122, a guiding arm 123 and a proximity switch 124 disposed on the guiding arm 123, where the mechanical arm 121 is L-shaped, one end hooks a rail 1, and the other end slides on the guiding arm 123 through the connecting slider 122, so that the rail 1 slides on the material handling frame 110 correspondingly, and when the rail 1 reaches a horizontal position capable of entering the first guiding mechanism, the mechanical arm 121 stops moving when the proximity switch 124 is triggered by the mechanical arm 121, thereby limiting the position of the rail 1.
The first length measuring mechanism 140 is a length measuring sensor, a length measuring instrument, and the like, preferably, the first length measuring mechanism 140 includes a coding wheel (not shown), the extension length of the steel rail relative to the cutting member of the sawing device is measured by adopting a coding distance measuring mode, for example, the coding wheel can be triggered to start counting by pressing a roller on a material conveying frame under the steel rail, and the triggering of the coding wheel can also be realized by adopting a swing rod mechanism.
According to the automatic blanking measurement system for rail sawing, the positions of the rails are preliminarily determined through the first limiting mechanism, the rails are accurately fed into the inlet of sawing equipment through the first guiding mechanism, the blanking length is accurately measured by adopting the first length measuring mechanism in the process of entering the sawing equipment, full automation and accurate feeding and measurement in the process of sawing and blanking the rails can be realized, the efficiency of rail sawing and the loss of the sawing equipment are greatly improved, and meanwhile, the stability and reliability of the sawing equipment are also improved. Meanwhile, in the automatic blanking process, more accurate system control is realized through speed control of the material conveying frame, and the influence of inertia on a measuring system is effectively reduced.
Fig. 2 shows a limit rolling stop for limiting a steel rail, as shown in fig. 2, the limit rolling stop 150 comprises a bracket 151, a connecting rod 152 and a roller 153, wherein one end of the bracket 151 is fixed on the material conveying frame 110, the other end of the bracket is provided with the connecting rod 152, the roller 153 surrounds the connecting rod 152, and the steel rail is limited by rolling contact of the roller 153 and the steel rail.
Preferably, the limit rolling stopper 150 includes a bracket 151, a connecting rod 152 and a roller 153, a sleeve (not shown), and a bearing (not shown), wherein the connecting rod 152 and the bracket are in interference fit, the bearing is mounted inside the roller, and the sleeve limits the position of the roller on the pin. One end of the limit rolling stop block 150 is connected with the material conveying frame through a U-shaped groove at the bottom of the bracket through a bolt, the other end of the limit rolling stop block adopts a sleeve to axially position the roller, and a pair of bearings are arranged in the roller, so that the roller and the bearings can slide relatively. The steel rail is limited through the rolling contact of the roller and the steel rail.
The limit rolling stop 150 adopts a mechanical structure that a bearing is arranged in a roller, so that the relative rolling between a steel rail and the roller is ensured, and the friction is reduced.
Preferably, a sliding groove 154 is disposed at one end of the bracket 151 contacting the material transporting frame 110, the distance between the roller 153 and the steel rail 1 is adjusted, for example, the horizontal distance between the roller 153 and the steel rail can be adjusted through the sliding groove below the limit rolling stop according to different types of cut steel rails, so that the roller has strong adaptability, and can work normally under different working conditions, further preferably, two sliding grooves 154 are symmetrically disposed at one end of the bracket 151 contacting the material transporting frame 110, the sliding grooves 154 are in a U shape perpendicular to the steel rail, a plurality of bolts can be mounted on the U-shaped sliding grooves, and the transverse loading capacity of the limit rolling stop is provided through the friction force between the bolts and the bracket 151.
In a preferred embodiment of the present invention, four pairs of limit rolling stoppers 150 are adopted, the center distance between two rollers 153 of the limit rolling stoppers 150 which are symmetrically positioned at two sides of the steel rail is adjusted according to the type of the steel rail 1 to be processed, and the two rollers are fixed in a taper guiding form with a large inlet and a small outlet, when the steel rail 1 passes through the first limiting mechanism 120 to be primarily limited, if the steel rail slides transversely due to factors such as inertia or driving rollers 112, the offset of the steel rail can be gradually corrected step by step through the taper first guiding mechanism 130, and finally, the steel rail can be accurately entered into the inlet of sawing equipment, so as to complete the sawing of the steel rail.
The first guide mechanism 130 shown in fig. 1 may be a block fixed on the material conveying rack 110, preferably, the first guide mechanism 130 includes a plurality of pairs of limit rolling blocks 150, which are arranged along two sides of the steel rail in a tapered manner, for example, four pairs of limit rolling blocks, the center distance of each pair of rollers 153 is adjusted according to the model of the steel rail to be processed, and the guide mechanism is fixed in a tapered guide mode with a large inlet and a small outlet, so that the steel rail is gradually adjusted to a proper position.
In a preferred embodiment of the present invention, as shown in fig. 3, the rail sawing automatic blanking measurement system 100 further comprises:
the second limit mechanism 160 is disposed between the first limit mechanism 120 and the first guide mechanism 130, is mounted on one side of the material conveying frame, and comprises at least one limit rolling stop 150, and preferably, the relative position between the limit rolling stop 150 and the material conveying frame is kept adjustable, as shown in fig. 1, at least one limit rolling stop 150 of the second limit mechanism 160 and the mechanical arm 121 of the first limit mechanism 120 are respectively located on two sides of the steel rail 1, the proximity switch 124 is used as a soft limit, the limit rolling stop 150 is used as a forced limit, the mechanical arm is controlled to stop moving through a non-contact proximity switch, and then the mechanical arm is forced to limit through an adjustable limit rolling stop, so that difficulty in feeding caused by movement inertia of the steel rail is avoided;
the control unit 170 is configured to control a conveying speed of the rail 1 by the material conveying rack 110, and may be one or more of a PLC controller, a single-chip microcomputer, a DSP, a computer, and the like, where the conveying speed is slowed down when the first length measuring mechanism 140 measures that the extending length of the rail 1 relative to the cutting member 11 of the sawing device 10 reaches a set proportion of a set length; stopping conveying when the extension length reaches the set length, and reducing the influence of inertia on a system by a method of reducing the speed of the steel rail;
a second guiding mechanism 180, which is arranged outside the outlet of the sawing device 10 and is used for guiding the cut steel rail;
a second length measuring mechanism 190 is arranged at the outlet of the sawing device 10 and outside the sawing device, and is used for measuring the length of the cut steel rail.
Under the control of the control unit 170, after the steel rail 1 is conveyed to the material conveying frame 110 through the mechanical arm 121, the position of the steel rail is primarily determined through the first limiting mechanism 120, then the steel rail is accurately conveyed to the inlet of the sawing device 10 through the first guiding mechanism 130, and in the process of entering the sawing device, the blanking length is accurately measured by adopting the first length measuring mechanism 140. The sawn rail is finally checked accurately from the outlet of the sawing device 10 by the second length measuring mechanism 190. The invention can realize full automation and accurate feeding and measurement in the process of sawing and blanking the steel rail, greatly improves the efficiency of sawing the steel rail and the loss of sawing equipment, and simultaneously improves the stability and the reliability of the sawing equipment. Meanwhile, in the automatic blanking process, more accurate system control is realized through speed control of the material conveying frame, and the influence of inertia on a measuring system is effectively reduced.
Preferably, when the first length measuring mechanism 140 measures that the rail extends out of the sawing mechanism to a half of the set length, the control unit 170 controls the frequency converter of the material conveying frame 110 to enable the motor of the driving roller to do deceleration movement, and when the rail extends out of the sawing mechanism to the set length, the motor stops rotating, and the sawing equipment performs sawing on the rail.
The automatic unloading measurement system 100 for rail sawing is particularly important for ensuring that rails can smoothly enter sawing equipment. In order to ensure the precision of the finished product after the steel rail sawing, the error needs to be reduced at each stage, so the precision of the whole system is improved by adopting a non-contact limiting mode by the first limiting mechanism 120, namely, the non-contact limiting mode is realized by adopting a proximity switch 124, when the mechanical arm 121 dials the steel rail 1 to the material conveying frame 110 and the mechanical arm 121 contacts the proximity switch 124 on the guide arm 123 of the installation 1, the mechanical arm 121 stops moving, and at the moment, under the condition of not considering the influence of the transverse inertia of the steel rail 1, the steel rail 1 just reaches the position which can enter the inlet of the sawing equipment. In order to prevent the rail 1 from sliding too much transversely due to uncontrollable factors such as operation, a second limiting mechanism 160, namely a limiting rolling stop block 12, is additionally arranged on one side of the material conveying frame, keeps a certain distance from the rail, and cannot contact the rail under normal conditions, so that the rail can be contacted only when sliding too much transversely, the effect of preventing the rail from sliding too much transversely is achieved, sliding friction between the rail and a connecting sliding block 122 connected with a mechanical arm 121 is effectively avoided, and the service life of original equipment is prolonged.
Fig. 4 shows a schematic view of a preferred embodiment of the first and second length measuring mechanisms of the present invention, as shown in fig. 4, the first and/or second length measuring mechanisms 140, 190 comprise a set of push-down rollers 141, an encoder measurement set 142 and a swing link mechanism 143, wherein,
the lower pressing wheel set 141 and the encoder measuring set 142 are movably connected through a swing rod mechanism 143, the lower pressing wheel set 141 comprises a lower pressing wheel 141-1 and a first bearing seat 141-2, the lower pressing wheel 141-1 is arranged on the first bearing seat 141-2, and the height of the lower pressing wheel 141-1 is higher than the bottom surface of the steel rail 1;
the encoder measurement set 142 comprises an encoder measurement wheel 142-1, an encoder 142-2 and a second bearing 142-3, wherein the encoder measurement wheel 142-1 is arranged on the second bearing 142-3, the encoder measurement wheel 142-1 is lower than the bottom surface of the steel rail, and the encoder measurement wheel 142-1 is coaxially connected with the encoder 142-2;
the swing rod mechanism 143 comprises a swing rod 143-1, a shaft sleeve 143-2, a guide rod 143-3 and a third bearing seat 143-4, one end of the swing rod 143-1 is connected with the first bearing seat 141-2, the other end is connected with the shaft sleeve 143-2, one end of the guide rod 143-3 is connected with the shaft sleeve 143-2, the other end is connected with the second bearing seat 142-3, and the shaft sleeve 143-2 is arranged on the third bearing seat 143-4;
the steel rail 1 enters from one side of the encoder measurement set 142, slides out from one side of the lower pinch roller set 141, the steel rail 1 does not contact with the encoder measurement wheel 142-1, slides from above the encoder measurement wheel 142-1, the lower pinch roller 141-1 is pressed down, so that the encoder measurement wheel 142-1 movably connected with the lower pinch roller 141-1 is boosted on the bottom surface of the steel rail, the encoder measurement wheel 142-1 rotates along with the sliding of the steel rail, the encoder 142-2 measures the sliding length of the steel rail by recording the rotation number of the encoder measurement wheel 142-1, wherein the sliding length is the sum of the encoder reading and the horizontal distance between the lower pinch roller and the measurement wheel, the horizontal distance between a cutting member of sawing equipment and the encoder measurement wheel is subtracted, and the cutting construction length is extended for the steel rail.
Preferably, the first length measuring mechanism and/or the second length measuring mechanism further comprise a lifting wheel set 144 and a sliding rail mechanism 145, wherein,
the lifting wheel set 144 is movably connected with the lower pressing wheel set 141 through a swing rod mechanism 143 and comprises a lifting wheel 144-1 and a fourth supporting seat 144-2, the lifting wheel 144-1 is arranged on the fourth supporting seat 144-2 and is in contact with the first bearing seat 141-2, and the bottom surface of the fourth supporting seat 144-2 is fixedly connected with the guide rod 143-3;
the sliding rail mechanism 145 is configured to support the encoder measurement wheel set and limit the sliding direction of the encoder measurement wheel set, and includes a bracket 145-1, a sliding rail 145-2 fixed on the bracket 145-1, and a sliding block 145-3 sliding relative to the sliding rail 145-2, wherein the bracket 145-1 may be fixed on the bottom surface of the third bearing seat 143-4 or may be a separate bracket, the sliding block 145-3 is fixedly connected with the second bearing seat 142-3, and the sliding block 145-3 is driven to move relative to the sliding rail 145-2 by the movement of the second bearing seat 142-3, and further, preferably, the encoder measurement set 142 includes a pair of sliding rail mechanisms 145, which are respectively located at two sides of the second bearing seat 142-3, and one of the sliding rail mechanisms 145 may be fixedly connected with the second bearing seat 142-3, or both of the sliding rail mechanisms 145 may be fixedly connected with the second bearing seat 142-3;
the steel rail does not contact with the encoder measuring wheel 142-1 to slide from above the encoder measuring wheel, the pressing wheel 141-1 is pressed down, the lifting wheel 144-1 movably connected with the pressing wheel 141-1 is lifted, the encoder measuring wheel 142-1 is driven to lift up on the bottom surface of the steel rail, the encoder measuring wheel 142-1 rotates along with the sliding of the steel rail, and the encoder 142-2 measures the length of the sliding steel rail by recording the number of turns of the encoder measuring wheel.
In addition, it is preferable that the bracket 145-1 of the slide rail mechanism 145 is integrally formed with the bottom surface of the third bearing seat 143-4 of the swing link mechanism 143, that is, the bottom surface of the third bearing seat 143-4 may be in a "T" shape, an "L" shape, or an "F" shape.
In still another embodiment, the first length measuring mechanism 140 and/or the second length measuring mechanism 190 further includes a support stand 146 for placing the lower pressing wheel set 141, the lifting wheel set 144, the swing rod mechanism 143 and the encoder measuring set 142, and preferably, the support stand 146 is a telescopic stand, and the height of the support stand 146 is adjusted.
Preferably, the first length measuring mechanism 140 and/or the second length measuring mechanism 190 further comprises a cushion block 147, which is placed between the support stand 146 and the lifting wheel set 144 or between the third bearing seat 143-4 and the lifting wheel set 146 or below the encoder measuring wheel set 142, and is used for cushioning the lifting wheel set 144 or the encoder measuring wheel set 142, and the initial height of the lifting wheel set 144 or the encoder measuring wheel set 142 can be adjusted by adjusting the thickness of the cushion block 147.
In still another embodiment, the encoder measurement set 142 of the second length measuring mechanism 190 further includes a travel switch 142-6 disposed on the opposite side of the encoder measurement wheel facing the pressing wheel, and having a set distance from the encoder measurement wheel, when the rail leaves the travel switch 142-6, the encoder stops counting, preventing the encoder measurement wheel from idling due to inertia when the rail leaves the encoder measurement wheel, thereby causing inaccurate rail length measurement, preferably, as shown in fig. 4, the bottom surface of the second bearing seat 142-3 of the encoder measurement set 142 is L-shaped, one end of which is provided with the encoder measurement wheel 142-1, and the other end of which is provided with the travel switch 142-6, and the initial height of the travel switch 142-6 is lower than that of the rail.
The first length measurement mechanism 140 may or may not include the travel switch 142-6.
In a preferred embodiment of the present invention, the encoder measurement wheel set 142 further includes a support base plate 142-4 and a plurality of springs 142-5 installed between the support base plate 142-4 and the second bearing plate 142-3, so that the encoder measurement wheel 142-1 can be pressed against the bottom surface of the rail.
In the first length measuring mechanism 140 and/or the second length measuring mechanism 190, the height of the encoder measuring wheel is lower than the bottom surface of the steel rail, the encoder measuring wheel is tightly attached to the bottom surface of the steel rail through the lower pressing wheel, compared with the mode of measuring the length of the steel rail by adopting a steel rail installed encoder, before the lower pressing wheel contacts with the steel rail, the encoder measuring wheel is not impacted by the front section of the steel rail, but is slowly attached to the steel rail through the rising of the lower side of the steel rail, so that the damage of the encoder measuring wheel caused by the impact can be avoided, the service life of the encoder measuring wheel is prolonged, the measuring precision of the encoder is ensured, and the measuring precision of steel rail measurement is improved.
In addition, in the first length measuring mechanism 140 and/or the second length measuring mechanism 190, the lower pressing wheel is adopted to drive the lifting wheel to lift, the lifting wheel lifts to drive the encoder measuring wheel to press the measuring mode of measuring the length of the steel rail on the bottom surface of the steel rail, so that the collision and damage of the encoder measuring wheel caused by the impact of the transverse displacement and the vertical displacement generated when the encoder measuring wheel group moves vertically to the encoder measuring wheel due to the fact that the encoder measuring wheel group is directly and movably connected with the lower pressing wheel group are avoided, the service life of the encoder measuring wheel is prolonged, the measuring precision is improved, the automation degree is improved, the cost is low, and the method is provided for upgrading the automation industry and improving the production efficiency and the safety.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The automatic blanking measurement system for rail sawing comprises a material conveying frame for conveying rails, and is characterized by further comprising a first limiting mechanism, a first guiding mechanism and a first length measuring mechanism, wherein,
the first limiting mechanism is arranged on one side of the material conveying frame, close to the steel rail inlet, and is used for limiting the horizontal position of the steel rail on the material conveying frame relative to the first guiding mechanism so that the steel rail can enter the first guiding mechanism;
the first guide mechanism is arranged between the first limit mechanism and the sawing equipment and is of a conical structure with an inlet larger than an outlet, the inlet of the first guide mechanism faces the first limit mechanism, and the outlet of the first guide mechanism faces the inlet of the sawing equipment;
the first length measuring mechanism is arranged between the outlet of the first guiding mechanism and the inlet of the sawing device or between the outlet of the first guiding mechanism and the inlet of the sawing device and is used for measuring the extension length of the steel rail relative to the cutting member of the sawing device, when the extension length reaches the set length, the sawing device cuts the steel rail,
the first length measuring mechanism comprises a pressing wheel set, an encoder measuring set and a swing rod mechanism, wherein,
the lower pressing wheel set and the encoder measuring set are movably connected through a swing rod mechanism, the lower pressing wheel set comprises a lower pressing wheel and a first bearing seat, the lower pressing wheel is arranged on the first bearing seat, and the height of the lower pressing wheel is higher than the bottom surface of the steel rail;
the encoder measuring set comprises an encoder measuring wheel, an encoder and a second bearing, wherein the encoder measuring wheel is arranged on the second bearing, the height of the encoder measuring wheel is lower than the bottom surface of the steel rail, and the encoder measuring wheel is coaxially connected with the encoder;
the swing rod mechanism comprises a swing rod, a shaft sleeve, a guide rod and a third bearing seat, one end of the swing rod is connected with the first bearing seat, the other end of the swing rod is connected with the shaft sleeve, one end of the guide rod is connected with the shaft sleeve, the other end of the guide rod is connected with the second bearing seat, and the shaft sleeve is arranged on the third bearing seat;
the steel rail enters from one side of the encoder measurement set, slides out from one side of the lower pressing wheel set, and slides above the encoder measurement wheel without contacting the encoder measurement wheel, and the pressing wheel is pressed down, so that the pressure of the encoder measurement wheel movably connected with the lower pressing wheel is increased on the bottom surface of the steel rail, the encoder measurement wheel rotates along with the sliding of the steel rail, and the encoder measures the length of the sliding steel rail by recording the number of turns of the encoder measurement wheel.
2. The automated steel rail sawing blanking measurement system of claim 1, wherein the first limiting mechanism comprises a mechanical arm, a connecting slide block, a guide arm and a proximity switch arranged on the guide arm, wherein the mechanical arm is L-shaped, one end hooks a steel rail, the other end slides on the guide arm through the connecting slide block, so that the steel rail correspondingly slides on a material conveying frame, when the steel rail reaches a horizontal position capable of entering the first guide mechanism, the mechanical arm triggers the proximity switch, and the mechanical arm stops moving, so that the position of the steel rail is limited.
3. The automatic blanking measurement system of steel rail sawing machine according to claim 1, further comprising a limit rolling stop block, comprising a bracket, a connecting rod and a roller, wherein one end of the bracket, which is in contact with the material conveying frame, is provided with a sliding groove, the distance of the roller towards the steel rail is adjusted through the sliding groove, the other end of the bracket is provided with the connecting rod, the connecting rod is surrounded by the roller, and the steel rail is limited through rolling contact of the roller and the steel rail.
4. The automated rail sawing blanking measurement system of claim 3, further comprising a second limit mechanism disposed between the first limit mechanism and the first guide mechanism, including at least one limit rolling stop.
5. The automated rail sawing blanking measurement system of claim 3, wherein the first guide mechanism includes a plurality of pairs of limit rolling stops arranged in a tapered shape along both sides of the rail.
6. The automated steel rail sawing blanking measurement system of claim 1, further comprising a second length measuring mechanism disposed at an outlet of the sawing device for measuring a length of the cut steel rail, the second length measuring mechanism being identical in structure to the first length measuring mechanism.
7. The automated steel rail sawing blanking measurement system of claim 1, wherein the encoder measurement set further includes a travel switch disposed on an opposite side of the encoder measurement wheel from the pinch wheel, the encoder measurement wheel having a set distance from the encoder measurement wheel, the encoder stopping counting when a steel rail leaves the travel switch.
8. The rail sawing automatic blanking measurement system according to claim 1, further comprising a control unit for controlling a conveying speed at which the rail is conveyed by the carriage, wherein the conveying speed is slowed down when the first length measuring mechanism measures that the extension length of the rail with respect to the cutting member of the sawing device reaches a set proportion of a set length; and stopping conveying when the extending length reaches the set length.
9. The automated steel rail sawing blanking measurement system of claim 1, further comprising a second guiding mechanism disposed outside an outlet of the sawing device for guiding the cut steel rail.
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| CN201710619229.7A CN107350555B (en) | 2017-07-26 | 2017-07-26 | Automatic blanking measurement system for rail sawing |
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| CN201710619229.7A CN107350555B (en) | 2017-07-26 | 2017-07-26 | Automatic blanking measurement system for rail sawing |
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| CN108393526B (en) * | 2018-03-11 | 2019-12-13 | 浙江新立机械有限公司 | Aluminum alloy section bar cutting device |
| CN110405500A (en) * | 2019-07-24 | 2019-11-05 | 中国十七冶集团有限公司 | A kind of construction section bar cutting device |
| CN111940829A (en) * | 2020-08-17 | 2020-11-17 | 佛山市通润热能科技有限公司 | Automatic sawing method for aluminum profile |
| CN114192881B (en) * | 2021-12-27 | 2022-07-22 | 惠州市亚龙轨枕器材有限公司 | Saw cutting equipment for sleeper raw materials |
| CN117983894B (en) * | 2024-03-26 | 2024-08-06 | 苏州众捷汽车零部件股份有限公司 | High-efficient saw cuts length automated inspection equipment |
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