CN110052659B - Circular sawing machine capable of cutting at fixed angle - Google Patents
Circular sawing machine capable of cutting at fixed angle Download PDFInfo
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- CN110052659B CN110052659B CN201910207387.0A CN201910207387A CN110052659B CN 110052659 B CN110052659 B CN 110052659B CN 201910207387 A CN201910207387 A CN 201910207387A CN 110052659 B CN110052659 B CN 110052659B
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- guide
- clamping
- saw blade
- bearing
- cutting
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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
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/14—Sawing machines or sawing devices with circular saw blades or with friction saw discs for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut
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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
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/02—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of frames; of guiding arrangements for work-table or saw-carrier
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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
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
-
- 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
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
- B23D47/042—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work for conveying work to, or discharging work from, the machine
Abstract
The invention relates to the technical field of machinery. A circular sawing machine capable of cutting at a fixed angle comprises a cutting assembly, a lifting mechanism and a rotary indexing mechanism, wherein the cutting assembly comprises a saw blade and a saw blade driving mechanism for driving the saw blade to rotate; the lifting part of the lifting mechanism is detachably connected with the fixed part of the rotary indexing mechanism, and the rotating part of the rotary indexing mechanism is fixedly connected with the saw blade driving mechanism; the clamping assembly comprises a top chuck mechanism and a rotating table, the rotating table comprises a base and a rotating disc, the base is fixed on the rack, and the rotating disc is connected with the base through a first bearing; the top chuck mechanism comprises a top pressure plate and a top pressure plate driving mechanism for driving the top pressure plate to move up and down; the rotating part is connected with the rotary table through the top chuck mechanism, and the top pressure plate, the rotary table and the rotating part are linked. The invention realizes the fixed-angle cutting of the workpiece by additionally arranging the lifting mechanism, the rotary indexing mechanism and the clamping mechanism.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a circular sawing machine.
Background
The end face of a workpiece cut by the circular sawing machine on the market at present is vertical to the axial direction, and the saw blade of the existing circular sawing machine cannot realize cutting at a specific angle.
For some customers, the end faces of the cut workpieces are required to form a certain included angle with the axial direction, especially the welding aspect has a great demand on the aspect, the workpieces with special angles are generally cut manually in the past, and time and labor cost are wasted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a circular sawing machine capable of cutting at a fixed angle, which solves at least one problem.
The technical scheme of the invention is as follows: a circular sawing machine capable of cutting at a fixed angle comprises a cutting assembly, wherein the cutting assembly comprises a saw blade and a saw blade driving mechanism for driving the saw blade to rotate, and the circular sawing machine is characterized by further comprising a lifting mechanism for driving the cutting assembly to vertically advance and retreat a cutter and a rotary indexing mechanism for driving the cutting assembly to rotate at a fixed angle by taking the vertical direction as a rotating central line, wherein the lifting mechanism is arranged on a machine frame;
the clamping assembly comprises a top chuck mechanism for pressing the workpiece downwards and a rotating table for supporting the workpiece, and the top chuck mechanism and the rotating table are arranged up and down;
the rotating platform comprises a base and a rotating disc, wherein the base is fixed on the rack, and the base is connected with the rotating disc through a first bearing;
the top chuck mechanism comprises a top pressure plate and two double-guide-rod guide oil cylinders, and the top pressure plate, the rotary table and the rotating part are linked;
the two double-guide-rod guide oil cylinders respectively comprise a cylinder body and an integrally formed piston rod, the lower ends of the cylinder bodies of the two double-guide-rod guide oil cylinders are respectively and fixedly connected with the two ends of the jacking plate, the piston rods are an upper piston rod, a piston body and a lower piston rod from top to bottom in sequence, and the lower piston rod is fixedly connected with the rotary table;
the saw blade driving mechanism is provided with a guide sleeve, and the guide sleeve is used for guiding the saw blade driving mechanism to lift along the upper piston rod;
the top pressure plate and the rotary table are provided with strip-shaped notches for the saw blades to pass through.
This patent is through adding elevating system, gyration indexing mechanism and clamping mechanism, and then when realizing the fixed angle cutting of work piece, adopts the vertical advance and retreat sword of elevating system drive cutting assembly, has improved the saw bit feed orbit of circular sawing machine, when helping adjusting cutting angle, can also guarantee the cutting quality. The saw blade of the prior circular sawing machine is fed in the horizontal direction, or is fed in the direction inclined by 45 degrees, or is fed in a swinging type, and the angle of the saw blade cannot be adjusted.
Further preferably, the rotary indexing mechanism comprises a speed reduction motor, a coupler and an indexing rotating shaft which are sequentially arranged from top to bottom, a power output shaft of the speed reduction motor is connected with the indexing rotating shaft through the coupler, and the indexing rotating shaft is used as a rotating part of the rotary indexing mechanism;
the rotary indexing mechanism also comprises a main shaft box lifting frame and a speed reducer mounting seat;
the speed reducer mounting seat is mounted on the main spindle box lifting frame, the speed reduction motor is mounted on the speed reducer mounting seat, the speed reducer mounting seat is in a cylindrical shape with a downward opening, the coupler is arranged in the speed reducer mounting seat, and the indexing rotating shaft extends out of a lower opening of the speed reducer mounting seat;
the spindle box lifting frame is a fixed part of the rotary indexing mechanism and is connected with the lifting part of the lifting mechanism;
and an indexing rotating shaft bearing seat is mounted on the spindle box lifting frame, and a second bearing is arranged between the indexing rotating shaft bearing seat and the indexing rotating shaft.
The indexing rotating shaft is driven to rotate in an indexing way through the speed reducing motor.
Further preferably, the rotary indexing mechanism further comprises a first upper press ring and a first lower press ring which are arranged up and down;
the indexing rotating shaft comprises a step section with the outer diameter increasing in a step-shaped manner from top to bottom, the step section comprises three horizontally arranged supporting surfaces which are vertically arranged, and the three supporting surfaces are a first supporting surface, a second supporting surface and a third supporting surface in sequence from top to bottom;
the first upper pressing ring is detachably connected with the indexing rotating shaft, the bottom surface of the first upper pressing ring is abutted against the first supporting surface, and the first upper pressing ring and the second supporting surface form a clamping surface for clamping the second bearing inner ring;
the first lower pressing ring is detachably connected with the bearing seat, an annular notch embedded in the outer ring of the second bearing is formed in the bottom of the bearing seat, and the first lower pressing ring is connected with the bearing seat to form a clamping groove for clamping the outer ring of the second bearing;
and a gap is reserved between the bottom surface of the first lower pressing ring and the third supporting surface.
And the second bearing is compressed by the first upper compression ring and the first lower compression ring.
Further preferably, the saw blade driving mechanism comprises a main spindle box and a driving motor, the driving motor is mounted on the outer side of the main spindle box, a power input end and a power output end extend out of the main spindle box respectively, a power output shaft of the driving motor is in transmission connection with the power input end, and the saw blade is mounted at the power output end;
the spindle box is further provided with a cutter cover, the cutter cover comprises a front cover and a rear cover, the front cover is hinged with one end of the rear cover, and the front cover is detachably connected with the rear cover through a bolt;
the rear cover is fixedly connected with the spindle box, at least three blade protecting blades for clamping a saw blade are detachably connected to the inner sides of the front cover and the rear cover, and the blade protecting blades on the front cover and the rear cover are arranged on the outer sides of the saw blade in a mirror symmetry manner;
the gaps between all the blade protecting pieces and the saw blade are 1-2 wires.
The protective saw blade is clamped by the protective blade, so that the cutting is stable, and the cutting precision is ensured.
Further preferably, the opposite sides of the spindle box are respectively provided with spindle box guide sleeves, the spindle box guide sleeves are used for the spindle box to vertically slide under the guidance of upper piston rods of the two double-guide-rod guide oil cylinders, and the spindle box guide sleeves are guide sleeves of the saw blade driving mechanism. And the main spindle box is detachably connected with the indexing rotating shaft.
Further preferably, a driving belt pulley is sleeved on a power output shaft of the driving motor, a driven belt pulley is sleeved on a power input end, the driving belt pulley is connected with the driven belt pulley through belt transmission, a tool flange and a saw blade are sequentially sleeved on the power output end, the saw blade is clamped between the tool flange and a tool gland, and the tool gland is fixed at the power output end through screws.
The cutter flange is fixedly connected with the step end face of the power output end through screws in the radial inner circumferential direction of the cutter flange, the saw blade is sleeved on a shaft neck of the power output end, a cylindrical pin is tightly matched with the radial periphery of the cutter gland, the cutter gland and the cylindrical pin are connected into a whole, the cutter gland sequentially penetrates through a pin hole of the saw blade and a pin hole of the cutter flange, and the cutter gland is fixed at the power output end through screws.
The installation rapidity and the stability of the saw blade are convenient to ensure.
Further preferably, an iron chip material guide hopper is installed on the base or the rotary table, and an opening at the upper end of the iron chip material guide hopper is in butt joint with the elongated notch on the rotary table.
Facilitating the collection of debris from the cutting of the workpiece by the saw blade.
Further preferably, the first bearing is a cross roller bearing;
the base is a bearing seat, an installation groove for inserting the first bearing from top to bottom is formed in the base, the upper end of the installation groove is open, a second upper pressing ring for covering the upper end opening of the installation groove is detachably connected to the upper portion of the base, and the second upper pressing ring is connected with the base to form an annular clamping groove for clamping an outer ring of the first bearing;
the outer wall of the bottom of the turntable is provided with an annular notch embedded into the inner ring of the first bearing;
the inner ring of the first bearing is arranged between the turntable and the second pressing ring;
the carousel the second pushes down the ring and iron fillings guide fill is from last to connecting gradually down.
The collection of piece through iron fillings guide fill, derivation are guaranteed in the time of being convenient for realize the rotation stationarity of carousel.
Further preferably, the turntable comprises an upper part and a lower part which are arranged up and down, and the upper part and the lower part are fixedly connected to form the turntable;
the upper part is disc-shaped, the upper part is provided with the strip-shaped notch, and the strip-shaped notch is a stepped groove with the cross section area gradually increased in a stepped manner from top to bottom;
the lower part is annular, and the outer diameter of the lower part is larger than that of the upper part.
The structure of the turntable is optimized, the self weight of the turntable is controlled while the workpiece is supported conveniently, and the supporting effect of the first bearing is guaranteed.
Further preferably, the lifting mechanism is a screw lifting mechanism;
the screw rod lifting mechanism comprises an upright post, a servo motor, a ball screw rod, a coupling, a screw rod nut matched with the ball screw rod, a guide rail and a slide block in sliding connection with the guide rail, the servo motor is installed on the upright post, and a power output shaft of the servo motor is in transmission connection with the ball screw rod through the coupling;
the lead screw nut is used as a lifting part of the lifting mechanism;
the rotary indexing mechanism comprises a main spindle box lifting frame which is a fixed part of the rotary indexing mechanism;
the spindle box lifting frame is provided with a nut seat which is detachably connected with the feed screw nut;
the spindle box lifting frame is detachably connected with the sliding block;
the number of the guide rails is two, the guide rails are detachably connected with the upright posts, and two guide rail press block groups are detachably connected to the upright posts; the two groups of guide rail pressing blocks are respectively used for abutting against one side of the two guide rails, and the upright post is provided with a limiting surface for abutting against the other side of the two guide rails;
the two guide rails are respectively clamped and positioned with the guide rail pressing block group through the limiting surfaces.
The fixing effect of the guide rail is convenient to guarantee, and the guide rail is prevented from shaking.
Further preferably, the rack is further provided with two chucks for transversely clamping and fixing the workpiece, and the rotating table is arranged between the two chucks.
The fixing effect of the workpiece is convenient to guarantee, and the cutting effect is further guaranteed.
The clamping head comprises a fixed clamping part fixed on the rack and a movable clamping part arranged on the rack, the movable clamping part is a hydraulic cylinder or an air cylinder, the moving direction of a piston rod of the movable clamping part faces the fixed clamping part, a pressing block for clamping a workpiece is arranged at the end part of the piston rod of the movable clamping part, and the workpiece is clamped between the pressing block and the fixed clamping part;
a workpiece feeding and conveying mechanism for feeding workpieces is mounted on the rack, and the conveying direction of the workpiece feeding and conveying mechanism is vertical to the clamping direction of the chuck;
the conveying direction of the workpiece feeding and conveying mechanism is parallel to the length direction of the workpiece.
The fixing effect of the workpiece is convenient to ensure.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of the lifting mechanism of the present invention;
FIG. 3 is a schematic structural diagram of the rotary indexing mechanism of the present invention;
FIG. 4 is a cross-sectional view of the rotary indexing mechanism of the present invention;
FIG. 5 is a schematic diagram of a top chuck mechanism according to the present invention;
FIG. 6 is a schematic view of a turntable according to the present invention;
FIG. 7 is a cross-sectional view of a turntable according to the present invention;
FIG. 8 is a schematic view of a cutting assembly according to the present invention;
FIG. 9 is a partial cross-sectional view of the cutting assembly of the present invention at the blade;
fig. 10 is a schematic view of a structure of the cutter cover of the present invention.
In fig. 1: the automatic cutting machine comprises a machine frame, a front horizontal chuck, a rotary table, a top chuck, a cutter cover, a saw blade driving mechanism, a rotary indexing mechanism, a lifting mechanism, a square tube and a workbench, wherein the machine frame is 1, the machine frame is 2, the front horizontal chuck is 3, the rotary table is 4, the top chuck is 5, the cutter cover is 6, the saw blade driving mechanism is 7, the rotary indexing mechanism is 8, the lifting.
In fig. 2: 12 is a vertical column, 13 is a guide rail pressing block, 14 is a guide rail, 15 is a ball screw, 16 is a coupling A, 17 is a motor mounting plate, and 18 is a servo motor.
In fig. 3 and 4: 19 is a main spindle box lifting frame, 20 is a speed reducer mounting base, 21 is a speed reducer, 22 is a speed reducing motor, 23 is a screw nut base, 24 is a second bearing, 25 is an indexing rotating shaft, 26 is a first upper press ring, 27 is a first lower press ring, 28 is an indexing rotating shaft bearing base, and 29 is a coupling B.
In fig. 5: 30 is a guide shaft mounting plate, 31 is a connecting nut, 32 is a top pressure plate, and 33 is a double-guide-rod guide oil cylinder.
In fig. 6 and 7: 34 is a second lower press ring, 35 is a base 36 which is a first bearing, 37 is a second upper press ring, 38 is a lower part, 39 is an upper part, and 40 is an iron chip diverting hopper.
In fig. 8 and 9: 41 is a saw blade, 42 is a driving motor, 43 is a main spindle box body, 44 is a main spindle box guide sleeve, 45 is a power output end, 46 is a tool flange, and 47 is a tool gland.
In fig. 10: 48 is a rear guard blade a, 49 is a rear cover, 50 is a rear guard blade B, 51 is a rear middle guard blade, 52 is a front middle guard blade, 53 is a front guard blade B, 54 is a front cover, and 55 is a front guard blade a.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 10, a circular sawing machine capable of cutting at a fixed angle comprises a cutting assembly, the cutting assembly comprises a saw blade and a saw blade driving mechanism 7 for driving the saw blade to rotate, and further comprises a lifting mechanism 9 for driving the cutting assembly to vertically advance and retreat, a rotary indexing mechanism 8 for driving the cutting assembly to rotate at a fixed angle by taking a vertical direction as a rotation center line, and a clamping assembly for clamping a workpiece.
The lifting part of the lifting mechanism 9 is detachably connected with the fixing part of the rotary indexing mechanism 8, and the rotating part of the rotary indexing mechanism 8 is fixedly connected with the saw blade driving mechanism 7.
The clamping assembly comprises a top clamping head mechanism 5 used for pressing down the workpiece and a rotating platform 4 used for supporting the workpiece, and the top clamping head mechanism 5 and the rotating platform 4 are arranged up and down. The rotating platform 4 comprises a base fixed on the frame and a rotating disk, and the base is connected with the rotating disk through a first bearing. Referring to fig. 5, the top chuck mechanism includes a top pressing plate 32 and two double-guide-rod guide cylinders 33, and the top pressing plate 32, the turntable and the rotating portion are linked; the two double-guide-rod guide oil cylinders respectively comprise a cylinder body and an integrally formed piston rod, the lower end of the cylinder body is respectively and fixedly connected with two ends of the jacking plate, the piston rods are an upper piston rod, a piston body and a lower piston rod from top to bottom in sequence, and the lower piston rod is fixedly connected with the rotary table; the saw blade driving mechanism is provided with a guide sleeve, and the guide sleeve is used for guiding the saw blade driving mechanism to lift along the upper piston rod. The top pressure plate and the rotary table are both provided with a long strip-shaped notch through which the saw blade passes. The lower piston rod of the double-guide-rod guide cylinder 33 is connected with the guide shaft mounting plate 30 through a connecting nut 31, and the upper piston rod and the lower piston rod of the double-guide-rod guide cylinder 33 are integrated. When the double-guide-rod guide oil cylinder 33 moves downwards, the top pressing plate 32 presses the square pipe to prepare for cutting, and after the cutting is finished, the top pressing plate 32 returns to the original position along with the cylinder body of the double-guide-rod guide oil cylinder 33. The guide shaft mounting plate 30 is detachably connected to the turntable. The lower piston rods of the two double-guide-rod guide oil cylinders are detachably connected with the two ends of the rotary table respectively.
This patent is through adding elevating system 9, gyration indexing mechanism 8 and clamping mechanism, and then when realizing the fixed angle cutting of work piece, adopts the vertical advance and retreat sword of elevating system 9 drive cutting assembly, has improved the saw bit feed orbit of circular sawing machine, when helping adjusting cutting angle, can also guarantee the cutting quality. The saw blade of the prior circular sawing machine is fed in the horizontal direction, or is fed in the direction inclined by 45 degrees, or is fed in a swinging type, and the angle of the saw blade cannot be adjusted.
The top pressure plate comprises a bottom plate, strip-shaped notches are formed in the bottom plate, extending portions extending upwards are arranged at two ends of the bottom plate in the length direction, and the extending portions are connected with a cylinder body of the double-guide-rod guide oil cylinder. The two sides of the extension part in the width direction are provided with vertically arranged baffle plates, and the baffle plates are connected with the end part of the bottom plate in the length direction. The outward splash of the cutting waste is prevented.
Referring to fig. 3 and 4, the rotary indexing mechanism 8 includes a reduction motor 22, a coupling B29, and an indexing rotation shaft, which are sequentially arranged from top to bottom, and the reduction motor 22 includes a servo motor and a speed reducer 21. A power output shaft of the reduction motor 22 (a power output shaft of the reduction gear 21) is connected to the index rotary shaft 25 through a coupling B29, and the index rotary shaft serves as a rotary part of the rotary index mechanism 8; the rotary indexing mechanism 8 also comprises a main shaft box lifting frame 19 and a speed reducer mounting seat 20; the reducer mounting base 20 is mounted on the main spindle box lifting frame 19, the reducer motor is mounted on the reducer mounting base 20, the reducer mounting base 20 is in a cylindrical shape with a downward opening, the coupler is arranged in the reducer mounting base 20, and the indexing rotating shaft extends out of the lower opening of the reducer mounting base 20; the main spindle box lifting frame 19 is a fixed part of the rotary indexing mechanism 8, and the main spindle box lifting frame 19 is connected with the lifting part of the lifting mechanism 9; the headstock lifting frame 19 is provided with an indexing rotating shaft bearing seat 28, and a second bearing 24 is arranged between the indexing rotating shaft bearing seat 28 and the indexing rotating shaft 25. The indexing rotating shaft is driven to rotate in an indexing way through the speed reducing motor. The rotary indexing mechanism 8 further includes a first upper press ring 26 and a first lower press ring 27 which are vertically arranged, the first upper press ring 26 and the first lower press ring 27 are both sleeved on the periphery of the indexing rotation shaft 25, and the second bearing 24 is clamped between the first upper press ring and the first lower press ring. And the second bearing is compressed by the first upper compression ring and the first lower compression ring. Specifically, the installation of first last clamping ring and first clamping ring is as follows: the indexing rotating shaft comprises a step section with the outer diameter increasing in a step-shaped manner from top to bottom, the step section comprises three horizontally arranged supporting surfaces which are vertically arranged, and the three supporting surfaces are a first supporting surface, a second supporting surface and a third supporting surface in sequence from top to bottom; the first upper pressing ring is detachably connected with the indexing rotating shaft, the bottom surface of the first upper pressing ring is abutted against the first supporting surface, and the first upper pressing ring and the second supporting surface form a clamping surface for clamping the inner ring of the second bearing; the first lower pressing ring is detachably connected with the bearing seat, the bottom of the bearing seat is provided with an annular notch embedded into the outer ring of the second bearing, and the first lower pressing ring is connected with the bearing seat to form a clamping groove for clamping the outer ring of the second bearing; a gap is reserved between the bottom surface of the first lower pressing ring and the third supporting surface. And the second bearing is compressed by the first upper compression ring and the first lower compression ring.
Referring to fig. 8 and 9, the saw blade driving mechanism 7 includes a main spindle box 43 and a driving motor 42, the driving motor 42 is installed outside the main spindle box 43, a power input end and a power output end 45 respectively extend from the main spindle box 43, a power output shaft of the driving motor 42 is in transmission connection with the power input end, and the power output end 45 is installed with the saw blade 41. The opposite sides of the spindle box are respectively provided with a spindle box guide sleeve, the spindle box guide sleeves are used for the spindle box to vertically slide under the guide of the upper piston rods of the two double-guide-rod guide oil cylinders, and the spindle box guide sleeves are guide sleeves of the saw blade driving mechanism. And the headstock 43 is detachably coupled to the index rotary shaft. The power output shaft of the driving motor 42 is sleeved with a driving belt pulley, the power input end is sleeved with a driven belt pulley, the driving belt pulley is in transmission connection with the driven belt pulley through a belt, the power output end 45 is sequentially sleeved with a tool flange 46 and a saw blade 41, the saw blade 41 is clamped between the tool flange 46 and a tool gland 47, and the tool gland 47 is fixed at the power output end 45 through screws. The cutter flange is fixedly connected with the step end face of the power output end through screws in the radial inner circumferential direction of the cutter flange, the saw blade is sleeved on a shaft neck of the power output end, a cylindrical pin is tightly matched with the radial periphery of the cutter gland, the cutter gland and the cylindrical pin are connected into a whole, the cutter gland sequentially penetrates through a pin hole of the saw blade and a pin hole of the cutter flange, and the cutter gland is fixed at the power output end through the screws. The installation of the saw blade 41 is convenient to ensure rapidness and stability.
Referring to fig. 10, a tool cover 6 is further mounted on the spindle box, the tool cover 6 comprises a front cover 54 and a rear cover 49, the front cover 54 is hinged to one end of the rear cover 49, and the front cover 54 is detachably connected with the rear cover 49 through bolts; the rear cover 49 is fixedly connected with the spindle box, the inner sides of the front cover and the rear cover are detachably connected with at least three blade protectors for clamping saw blades, and the blade protectors on the front cover and the rear cover are arranged on the outer sides of the saw blades in mirror symmetry; the gaps between all the blade protecting pieces and the saw blade are 1-2 wires. The protective saw blade is clamped by the protective blade, so that the cutting is stable, and the cutting precision is ensured. The clearance between the rear guard blade A48, the rear guard blade B50, the rear middle guard blade 51 and the inner side surface of the saw blade 41 is about 1-2 threads. After the front cover 54 and the rear cover 49 are closed, the gaps between the front guard blade A5, the front guard blade B53, the front middle guard blade 52 and the outer side surface of the saw blade 41 are about 1-2 threads. The blade protecting function is to clamp the protecting saw blade, so that the cutting is stable, and the cutting precision is ensured.
Referring to fig. 6 and 7, an iron scrap guiding hopper 40 is mounted on the base 35 or the turntable, and an opening at the upper end of the iron scrap guiding hopper 40 is in butt joint conduction with the elongated slot opening on the turntable. Facilitating the collection of debris from the cutting of the workpiece by the saw blade. The first bearing 36 is a cross roller bearing; the base 35 is a bearing seat, the base 35 is provided with a mounting groove for inserting the first bearing 36 from top to bottom, the upper end of the mounting groove is open, a second upper press ring 37 for covering the upper end opening of the mounting groove is detachably connected above the base 35, and the second upper press ring 37 is connected with the base 35 to form an annular clamping groove for clamping the outer ring of the first bearing 36; the outer wall of the bottom of the turntable is provided with an annular gap embedded into the inner ring of the first bearing 36; the inner race of the first bearing 36 is disposed between the turntable and the second hold-down ring 34; the turntable, the second lower pressing ring 34 and the scrap iron material guiding hopper 40 are sequentially connected from top to bottom. The collection and the derivation of the scrap pieces through the scrap iron guide hopper 40 are ensured while the rotation stability of the turntable is convenient to realize. The turntable comprises an upper part 39 and a lower part 38 which are arranged up and down, and the upper part 39 and the lower part 38 are fixedly connected to form the turntable; the upper part 39 is disc-shaped, a long strip-shaped notch is formed in the upper part 39, and the long strip-shaped notch is a stepped groove with the cross section area gradually increasing in a stepped manner from top to bottom; the lower portion 38 is annular and the outer diameter of the lower portion 38 is greater than the outer diameter of the upper portion 39. The structure of the turntable is optimized, the self weight of the turntable is controlled while the workpiece is supported conveniently, and the supporting effect of the first bearing 36 is guaranteed.
Referring to fig. 2, the lifting mechanism 9 is a screw lifting mechanism; the screw lifting mechanism comprises an upright post 12, a servo motor 18, a ball screw 15, a coupler A, a screw nut matched with the ball screw 15, a guide rail 14 and a slide block in sliding connection with the guide rail, wherein the servo motor 18 is arranged on the upright post 12, and a power output shaft of a servo motor 17 is in transmission connection with the ball screw 15 through the coupler A16; a lead screw nut is used as a lifting part of the lifting mechanism 9; the rotary indexing mechanism 8 comprises a main spindle box lifting frame 19, and the main spindle box lifting frame 19 is a fixed part of the rotary indexing mechanism 8; the main spindle box lifting frame is provided with a nut seat for detachably connecting a feed screw nut; the spindle box lifting frame is detachably connected with the sliding block; the number of the guide rails is two, the guide rails are detachably connected with the upright post 12, and two guide rail pressing blocks 13 are detachably connected to the upright post 12; the two groups of guide rail pressing blocks 13 are respectively used for abutting against one side of the two guide rails 14, and the upright post 12 is provided with a limiting surface for abutting against the other side of the two guide rails 14; the two guide rails 14 are respectively clamped and fixed with the guide rail pressing block 13 group through the limiting surfaces. The fixing effect of the guide rail is convenient to guarantee, and the guide rail is prevented from shaking. The upright post 12 is provided with a motor mounting plate 17, and the servo motor 18 is arranged on the motor mounting plate 17.
The frame is also provided with two chucks for transversely clamping and fixing workpieces, and the rotating platform is arranged between the two chucks. The fixing effect of the workpiece is convenient to guarantee, and the cutting effect is further guaranteed. The two chucks can be a front horizontal chuck 3 and a rear horizontal chuck 1, respectively. The clamping head comprises a fixed clamping part fixed on the rack and a movable clamping part arranged on the rack, the movable clamping part is a hydraulic cylinder or an air cylinder, the moving direction of a piston rod of the movable clamping part faces the fixed clamping part, a pressing block for clamping a workpiece is arranged at the end part of the piston rod of the movable clamping part, and the workpiece is clamped between the pressing block and the fixed clamping part; a workpiece feeding and conveying mechanism for feeding workpieces is arranged on the rack, and the conveying direction of the workpiece feeding and conveying mechanism is vertical to the clamping direction of the clamping head; the conveying direction of the workpiece feeding and conveying mechanism is parallel to the length direction of the workpiece. The fixing effect of the workpiece is convenient to ensure. The fixed clamping parts of the two clamping heads are flush with the clamping surface of the workpiece.
The first calibration of the device can be to fix the workpiece, pre-cut the workpiece, measure the angle of the pre-cut section, and store the angle of the primarily cut section in the storage module of the controller. And (3) performing secondary cutting, wherein the controller controls a speed reducing motor of the rotary indexing mechanism to rotate by a specific angle (30 degrees), and the angle of the obtained secondary cutting section is measured, for example, if the difference between the angle of the secondary cutting section and the angle of the pre-cutting section is 29.9-30.1 degrees. If the angle difference is 29.9-30.1 degrees and is not in the range, continuing debugging, and storing the angle of the secondary cutting section and the rotating angle of the speed reducing motor into a storage module of the controller.
The device is used for taking out the workpiece and measuring the end face angle. The main spindle box is also provided with an extending part which extends outwards, and the extending part is provided with an infrared receiving device which senses the direction of the infrared receiving device. Two infrared lasers are installed on the rack, and the light emitting frequencies of the infrared lasers are different. And in the moving process of a main spindle box of the cutting assembly, the infrared receiving device sequentially receives infrared light emitted by the two infrared lasers. The rotation condition of the rotary indexing mechanism is further known through the infrared receiver and the infrared laser. The accuracy of angle adjustment of the rotary indexing mechanism is realized. The infrared receiving device and the infrared receiving device are both connected with the controller. The rotating angle of the speed reducing motor through the rotary indexing mechanism is consistent with the interval angle of the two infrared lasers. The device is indicated by taking one of the two infrared lasers as an initial starting point. The precision of the cutting angle is improved. And in the initialization state, the initial starting point indicating device and the infrared receiving device are arranged oppositely. The two infrared lasers are oppositely arranged on two sides of the rotating platform. And when the infrared receiving device of the rotary indexing mechanism rotates to be arranged opposite to the initial starting point indicating devices of the two infrared lasers, the central connecting line of the two infrared lasers and the outer circumference of the saw blade are positioned on the same vertical plane. And the central connecting line of the two infrared lasers is vertical to the length direction of the workpiece.
The device is arranged on a frame 2, a front horizontal chuck 3 and a rear horizontal chuck 1 which are used for clamping workpieces are also arranged on the frame 2, and the device is arranged between the front horizontal chuck 3 and the rear horizontal chuck 1.
When the square tube enters the workbench 11, the cylinders of the front horizontal chuck 3 and the rear horizontal chuck 1 clamp the square tube 10, the top pressure plate 32 of the top chuck 5 presses the square tube 10 downwards under the action of the double-guide-rod guide cylinder 33, and the saw blade 41 fixed on the cutter flange 46 of the spindle box 7 is driven by the servo motor 18 of the lifting mechanism to feed downwards.
When the saw blade 41 is fed downwards to cut the square pipe, the square pipe is cut into the square pipe 10 through the elongated notch of the top pressure plate 32 of the top chuck 5, the square pipe is cut through and enters the elongated notch of the upper part 39 of the rotary disc 4, the cutter is withdrawn, the cutting is completed, and the next cutting is waited.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (8)
1. A circular sawing machine capable of cutting at a fixed angle comprises a cutting assembly, wherein the cutting assembly comprises a saw blade and a saw blade driving mechanism for driving the saw blade to rotate, and the circular sawing machine is characterized by further comprising a lifting mechanism for driving the cutting assembly to vertically advance and retreat a cutter and a rotary indexing mechanism for driving the cutting assembly to rotate at a fixed angle by taking the vertical direction as a rotating central line, wherein the lifting mechanism is arranged on a machine frame;
the clamping assembly comprises a top chuck mechanism for pressing the workpiece downwards and a rotating table for supporting the workpiece, and the top chuck mechanism and the rotating table are arranged up and down;
the rotating platform comprises a base and a rotating disc, wherein the base is fixed on the rack, and the base is connected with the rotating disc through a first bearing;
the top chuck mechanism comprises a top pressure plate and two double-guide-rod guide oil cylinders, and the top pressure plate, the rotary table and the rotating part are linked;
the two double-guide-rod guide oil cylinders respectively comprise a cylinder body and an integrally formed piston rod, the lower ends of the cylinder bodies of the two double-guide-rod guide oil cylinders are respectively and fixedly connected with the two ends of the jacking plate, the piston rods are an upper piston rod, a piston body and a lower piston rod from top to bottom in sequence, and the lower piston rod is fixedly connected with the rotary table;
the saw blade driving mechanism is provided with a guide sleeve, and the guide sleeve is used for guiding the saw blade driving mechanism to lift along the upper piston rod;
the top pressure plate and the rotary table are both provided with a long-strip-shaped notch for a saw blade to pass through;
the rotary indexing mechanism comprises a speed reducing motor, a coupler and an indexing rotating shaft which are sequentially arranged from top to bottom, wherein a power output shaft of the speed reducing motor is connected with the indexing rotating shaft through the coupler, and the indexing rotating shaft is used as a rotating part of the rotary indexing mechanism;
the rotary indexing mechanism also comprises a main shaft box lifting frame and a speed reducer mounting seat;
the speed reducer mounting seat is mounted on the main spindle box lifting frame, the speed reduction motor is mounted on the speed reducer mounting seat, the speed reducer mounting seat is in a cylindrical shape with a downward opening, the coupler is arranged in the speed reducer mounting seat, and the indexing rotating shaft extends out of a lower opening of the speed reducer mounting seat;
the spindle box lifting frame is a fixed part of the rotary indexing mechanism and is connected with the lifting part of the lifting mechanism;
an indexing rotating shaft bearing seat is mounted on the spindle box lifting frame, and a second bearing is arranged between the indexing rotating shaft bearing seat and the indexing rotating shaft;
the rotary indexing mechanism further comprises a first upper pressing ring and a first lower pressing ring which are arranged up and down;
the indexing rotating shaft comprises a step section with the outer diameter increasing in a step-shaped manner from top to bottom, the step section comprises three horizontally arranged supporting surfaces which are vertically arranged, and the three supporting surfaces are a first supporting surface, a second supporting surface and a third supporting surface in sequence from top to bottom;
the first upper pressing ring is detachably connected with the indexing rotating shaft, the bottom surface of the first upper pressing ring is abutted against the first supporting surface, and the first upper pressing ring and the second supporting surface form a clamping surface for clamping the second bearing inner ring;
the first lower pressing ring is detachably connected with the bearing seat, an annular notch embedded in the outer ring of the second bearing is formed in the bottom of the bearing seat, and the first lower pressing ring is connected with the bearing seat to form a clamping groove for clamping the outer ring of the second bearing;
and a gap is reserved between the bottom surface of the first lower pressing ring and the third supporting surface.
2. The circular saw machine capable of cutting at a fixed angle according to claim 1, wherein: the saw blade driving mechanism comprises a main shaft box and a driving motor, wherein the driving motor is arranged on the outer side of the main shaft box, a power input end and a power output end respectively extend out of the main shaft box, a power output shaft of the driving motor is in transmission connection with the power input end, and the power output end is provided with the saw blade;
the spindle box is further provided with a cutter cover, the cutter cover comprises a front cover and a rear cover, the front cover is hinged with one end of the rear cover, and the front cover is detachably connected with the rear cover through a bolt;
the rear cover is fixedly connected with the spindle box, at least three blade protecting blades for clamping a saw blade are detachably connected to the inner sides of the front cover and the rear cover, and the blade protecting blades on the front cover and the rear cover are arranged on the outer sides of the saw blade in a mirror symmetry manner;
gaps between all the blade protecting pieces and the saw blade are 1-2 wires;
and the opposite sides of the spindle box are respectively provided with a spindle box guide sleeve, the spindle box guide sleeves are used for the spindle box to vertically slide under the guide of upper piston rods of the two double-guide-rod guide oil cylinders, and the spindle box guide sleeves are guide sleeves of the saw blade driving mechanism.
3. The circular saw machine capable of cutting at a fixed angle according to claim 1, wherein: an iron chip guide hopper is installed on the base or the rotary table, and an opening at the upper end of the iron chip guide hopper is in butt joint conduction with the elongated notch on the rotary table.
4. A circular saw machine capable of cutting at a fixed angle according to claim 3, wherein: the first bearing is a cross roller bearing;
the base is a bearing seat, an installation groove for inserting the first bearing from top to bottom is formed in the base, the upper end of the installation groove is open, a second upper pressing ring for covering the upper end opening of the installation groove is detachably connected to the upper portion of the base, and the second upper pressing ring is connected with the base to form an annular clamping groove for clamping an outer ring of the first bearing;
the outer wall of the bottom of the turntable is provided with an annular notch embedded into the inner ring of the first bearing;
the inner ring of the first bearing is arranged between the turntable and the second pressing ring;
the carousel the second pushes down the ring and iron fillings guide fill is from last to connecting gradually down.
5. The circular saw machine capable of cutting at a fixed angle according to claim 1, wherein: the turntable comprises an upper part and a lower part which are arranged up and down, and the upper part and the lower part are fixedly connected to form the turntable;
the upper part is disc-shaped, the upper part is provided with the strip-shaped notch, and the strip-shaped notch is a stepped groove with the cross section area gradually increased in a stepped manner from top to bottom;
the lower part is annular, and the outer diameter of the lower part is larger than that of the upper part.
6. The circular saw machine capable of cutting at a fixed angle according to claim 1, wherein: the lifting mechanism is a screw rod lifting mechanism;
the screw rod lifting mechanism comprises an upright post, a servo motor, a ball screw rod, a coupling, a screw rod nut matched with the ball screw rod, a guide rail and a slide block in sliding connection with the guide rail, the servo motor is installed on the upright post, and a power output shaft of the servo motor is in transmission connection with the ball screw rod through the coupling;
the lead screw nut is used as a lifting part of the lifting mechanism;
the spindle box lifting frame is provided with a nut seat which is detachably connected with the feed screw nut;
the spindle box lifting frame is detachably connected with the sliding block;
the number of the guide rails is two, the guide rails are detachably connected with the upright posts, and two guide rail press block groups are detachably connected to the upright posts; the two groups of guide rail pressing blocks are respectively used for abutting against one side of the two guide rails, and the upright post is provided with a limiting surface for abutting against the other side of the two guide rails;
the two guide rails are respectively clamped and positioned with the guide rail pressing block group through the limiting surfaces.
7. The circular saw machine capable of cutting at a fixed angle according to claim 1, wherein: the rack is also provided with two chucks for transversely clamping and fixing workpieces, and the rotating platform is arranged between the two chucks.
8. The circular saw machine capable of cutting at a fixed angle according to claim 7, wherein: the clamping head comprises a fixed clamping part fixed on the rack and a movable clamping part arranged on the rack, the movable clamping part is a hydraulic cylinder or an air cylinder, and a pressing block for clamping a workpiece is arranged at the end part of a piston rod of the movable clamping part;
the workpiece is clamped between the pressing block and the fixed clamping part;
a workpiece feeding and conveying mechanism for feeding workpieces is mounted on the rack, and the conveying direction of the workpiece feeding and conveying mechanism is vertical to the clamping direction of the chuck;
the conveying direction of the workpiece feeding and conveying mechanism is parallel to the length direction of the workpiece.
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| CN201910207387.0A CN110052659B (en) | 2019-03-19 | 2019-03-19 | Circular sawing machine capable of cutting at fixed angle |
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| CN201910207387.0A CN110052659B (en) | 2019-03-19 | 2019-03-19 | Circular sawing machine capable of cutting at fixed angle |
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| CN110052659B true CN110052659B (en) | 2020-05-22 |
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| CN112170930B (en) * | 2020-10-07 | 2021-09-24 | 山东泰和城建发展有限公司 | Vertical cutting device is used in road and bridge construction |
| CN112247599A (en) * | 2020-10-12 | 2021-01-22 | 王光柱 | Building materials cutting equipment for municipal building construction |
| CN112756680A (en) * | 2020-12-18 | 2021-05-07 | 杭州智行远机器人技术有限公司 | Cutter assembly for nuclear industry pipe cutting equipment and nuclear industry pipe cutting equipment |
| CN115446655A (en) * | 2022-10-13 | 2022-12-09 | 上海汉虹精密机械有限公司 | Sawing structure for corner circular sawing machine |
| CN116174805A (en) * | 2023-02-28 | 2023-05-30 | 安徽扬子职业技术学院 | Waste recycling equipment for steel pipe cutting |
| CN117020302B (en) * | 2023-10-08 | 2023-12-01 | 上海狄兹精密机械有限公司 | Cutting equipment and method for planetary roller processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3606995A1 (en) * | 1986-03-04 | 1987-09-17 | Ferdinand Fromm | METHOD AND DEVICE FOR PRODUCING EXACT MITER CUTTINGS |
| CA2148974A1 (en) * | 1994-05-13 | 1995-11-14 | Richard P. Brault | Turntable mechanism for a cutting tool |
| US20070137452A1 (en) * | 2005-11-22 | 2007-06-21 | Oberheim Stephen C | Power miter saw with hinge linkage linear guides |
| CN102649229B (en) * | 2011-02-25 | 2014-05-28 | 苏州元泰自动化科技有限公司 | Automatic grooving device for numeric control bender |
| CN102794500A (en) * | 2012-07-26 | 2012-11-28 | 苏州赛特尔集团机械有限公司 | Table type electric circular sawing machine |
| CN102794498A (en) * | 2012-07-26 | 2012-11-28 | 苏州赛特尔集团机械有限公司 | Rotatable cutting device of table type electric circular sawing machine |
| CN205324876U (en) * | 2015-11-02 | 2016-06-22 | 南京铁道职业技术学院 | Machinery high efficiency cutting device |
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