WO2018052069A1 - 管切断機 - Google Patents
管切断機 Download PDFInfo
- Publication number
- WO2018052069A1 WO2018052069A1 PCT/JP2017/033220 JP2017033220W WO2018052069A1 WO 2018052069 A1 WO2018052069 A1 WO 2018052069A1 JP 2017033220 W JP2017033220 W JP 2017033220W WO 2018052069 A1 WO2018052069 A1 WO 2018052069A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutting machine
- tube
- rotary saw
- pair
- saw blades
- Prior art date
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- 238000005520 cutting process Methods 0.000 title claims abstract description 105
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 239000012530 fluid Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 4
- 239000013585 weight reducing agent Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/12—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes
-
- 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
- B23D21/00—Machines or devices for shearing or cutting tubes
-
- 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
- B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
- B23D25/02—Flying shearing machines
- B23D25/08—Flying shearing machines having two coacting shearing blades mounted independently
-
- 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
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
-
- 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
- B23D45/10—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a plurality of circular saw blades
-
- 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
- B23D45/10—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a plurality of circular saw blades
- B23D45/105—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a plurality of circular saw blades operating within the same plane
-
- 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
- B23D45/18—Machines with circular saw blades for sawing stock while the latter is travelling otherwise than in the direction of the cut
- B23D45/20—Flying sawing machines, the saw carrier of which is reciprocated in a guide and moves with the travelling stock during sawing
-
- 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
-
- 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
- B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D2007/013—Means for holding or positioning work the work being tubes, rods or logs
Definitions
- the present invention relates to a tube cutting machine used as a traveling cutting machine or the like in, for example, a pipe making line, and more specifically, a milling cutter is used as a rotary saw blade and the rotary saw blade is rotated at right angles to the pipe.
- the present invention relates to a tube cutting machine that moves in a plane and cuts the tube.
- the tube cutting machine here includes a stationary type as well as a traveling type.
- a plane perpendicular to the tube to be cut is referred to as an xy plane.
- a traveling cutting machine In a pipe manufacturing line, a traveling cutting machine is used to cut a continuously manufactured pipe into a fixed size.
- the traveling cutter cuts the tube by moving the rotary saw blade in a plane perpendicular to the tube while traveling in synchronization with the manufactured tube.
- Patent Document 1 discloses a cutting machine of a method of rotating a plurality of rotary saw blades along the outer peripheral surface of a pipe.
- the cutting method here is called a revolving type because the rotational movement of the rotating saw blade in the pipe circumferential direction is a revolving motion, and among the revolving methods, in particular, the rotating saw blade is arranged in two xy axes. Since the position is controlled, this is called the xy method.
- the swing arm supporting the rotary saw blade at the tip is attached to a plurality of positions in the circumferential direction of the face plate through which the tube passes, and the swing angle of the swing arm and the face plate
- the rotation angle of the rotary saw blade and the rotational position of the face plate and the rotational position of the rotary saw blade are attached to a plurality of circumferential positions of the face plate through which the pipe passes.
- the advantage of the revolution-type cutting machine is that high-speed cutting can be performed with a rotary saw blade having a relatively small diameter relative to the tube diameter and a small moving stroke of the rotary saw blade. Because of this advantage, the revolution type cutting machine is used as a traveling type cutting machine in a pipe making line in addition to a stationary type cutting machine.
- the disadvantage of the revolving cutter is that it is necessary to control the position of a plurality of rotary saw blades in two directions on the xy plane, which complicates and enlarges the drive mechanism and position control mechanism, and inevitably increases the weight. It can be bulky, expensive, and prone to failure.
- An object of the present invention is to provide a pipe cutting machine that can cut a large-diameter pipe accurately and efficiently in a short time, and has a simple structure, a small size, light weight, and excellent durability.
- the pipe cutting machine of the present invention is a stationary or traveling type pipe cutting machine that cuts a pipe at right angles to its center line, A pair of rotations facing each other so that the cutting edges overlap in the x-axis direction on both sides of the y-axis, with the plane perpendicular to the center line of the tube to be cut as the xy plane and the center of the tube as the coordinate origin A saw blade, A rectilinear drive mechanism that linearly drives the pair of rotary saw blades in the reverse direction in the y-axis direction so that the pair of rotary saw blades pass on and near the x axis; In order to avoid the interference of the blade edge when the pair of rotary saw blades pass on and near the x-axis, a part of the linear drive force in the y-axis direction is changed in the x-axis direction so that at least one of the pair of rotary saw blades And a power direction changing mechanism for moving one side outward from the y-axis.
- the power direction changing mechanism includes a saw blade biasing mechanism that biases at least one of the pair of rotary saw blades toward the inside closer to the y axis and holds the inner movement limit, and a pair of saw blade biasing mechanisms. And a guide mechanism for retracting and moving at least one of the pair of rotary saw blades against the urging force when the rotary saw blades pass on and near the x axis.
- the saw blade urging mechanism is an elastic member that elastically presses and holds at least one of the pair of rotary saw blades to the inner movement limit, or at least one of the pair of rotary saw blades to the inner movement limit. It is a pressing mechanism using fluid pressure that is pressed and held by pressure.
- the guide mechanism includes an outwardly convex curved guide.
- the rotary saw blade is driven by a hydraulic motor.
- the hydraulic motor is directly connected to a rotary saw blade.
- the tube cutting machine of the present invention further includes a front clamp and a rear clamp that are respectively disposed on the front side and the back side of the cutting surface by the pair of rotary saw blades and fix the tube.
- the said rear clamp clamps a pipe
- Both the front clamp and the rear clamp clamp the tube in the y-axis direction which is the linear drive direction of the rotary saw blade.
- the tube cutting machine of the present invention includes a chip collection box for collecting chips generated by cutting a tube by covering a moving area of a pair of rotary saw blades.
- the chip collection box has an opening / closing door that opens and closes an opening on the front side, and supports the front clamp by the opening / closing door.
- the tube cutting machine of the present invention linearly drives a pair of rotary saw blades arranged so that the blade edges overlap in the x-axis direction on both sides of the y-axis in the xy plane in the reverse direction in the y-axis direction.
- a relatively large diameter pipe can be cut efficiently and with high accuracy in a short time.
- the structure is simple, it is small and lightweight, and is excellent in economy and durability.
- the tube cutting machine is a tube cutting machine that cuts a tube 10 at a right angle to its center line, and a plane perpendicular to the center line of the tube 10 to be cut is an xy plane, Is a pair of rotary saw blades 20 and 20 arranged so that the cutting edges overlap in the x-axis direction on both sides of the y-axis, and the pair of rotary saw blades 20 and 20 are on and near the x-axis.
- the straight drive mechanism 50 that drives the pair of rotary saw blades 20 and 20 in the reverse direction in the y-axis direction and the interference of the blade edge when the pair of rotary saw blades 20 pass on and near the x-axis.
- the pair of rotary saw blades 20 and 20 arranged so that the cutting edges overlap in the x-axis direction on both sides of the y-axis in the xy plane are linearly driven in the reverse direction in the y-axis direction. Is done. Further, when the pair of rotary saw blades 20 and 20 pass on and near the x axis, a part of the straight driving force in the y axis direction is converted into the x axis direction, and the pair of rotary saw blades 20 and 20 Since both of them move away from the y-axis, interference between the cutting edges of the pair of rotary saw blades 20 and 20 is avoided.
- the tube 10 is cut, the large-diameter tube 10 can be cut efficiently and with high accuracy in a short time. Moreover, since the structure is simple, the apparatus is small and light, and the economy and durability are good.
- the tube cutting machine of the second embodiment is a tube cutting machine that cuts the tube 10 at a right angle to the center line thereof, and a plane perpendicular to the center line of the tube 10 to be cut is an xy plane, and the center of the tube Is a pair of rotary saw blades 20 and 20 arranged so that the cutting edges overlap in the x-axis direction on both sides of the y-axis, and the pair of rotary saw blades 20 and 20 are on and near the x-axis.
- the straight drive mechanism 50 that drives the pair of rotary saw blades 20 and 20 in the reverse direction in the y-axis direction and the interference of the blade edge when the pair of rotary saw blades 20 pass on and near the x-axis.
- the pair of rotary saw blades 20 and 20 arranged so that the cutting edges overlap in the x-axis direction on both sides of the y-axis in the xy plane are linearly driven in the reverse direction in the y-axis direction. Is done. Further, when the pair of rotary saw blades 20 and 20 pass on and near the x axis, a part of the straight driving force in the y axis direction is converted into the x axis direction, and the pair of rotary saw blades 20 and 20 By moving one side away from the y-axis, interference between the cutting edges of the pair of rotary saw blades 20 and 20 is avoided.
- the tube 10 is cut, the large-diameter tube 10 can be cut efficiently and with high accuracy in a short time. Moreover, since the structure is simple, the apparatus is small and light, and the economy and durability are good.
- FIG. 1 shows the main components of the pipe cutter shown in FIGS.
- the pipe cutting machine of the third embodiment is used as a traveling type cutting machine that cuts a pipe continuously discharged from the line while running along with the pipe, for example, at the outlet of the ERW pipe manufacturing line.
- the tube cutting machine of the present embodiment cuts the tube 10 with rotating saw blades 20, 20 disposed opposite to both sides of the path center (that is, the center line).
- the plane perpendicular to the path center (ie, the center line) of the tube 10 is the xy plane
- the x axis is the horizontal line
- the y axis is the vertical line relative to the horizontal line
- the z axis is the path center of the tube 10.
- 3 and 4 is referred to as the front side on the line exit side, that is, the discharge side of the tube 10
- the far side is referred to as the back side on the line entry side, that is, the entry side of the tube 10.
- This tube cutting machine has rotating saw blades 20 and 20 disposed so as to overlap each other in the x-axis direction on both sides of the y-axis, in particular, the y-axis, and rotating saw blades 20 and 20 on both sides.
- a straight drive mechanism 50 that drives the rotary saw blades 20 and 20 on both sides to move in the reverse direction in the y-axis direction, and the rotary saw blades 20 on both sides on and near the x-axis so as to pass each other on and around the x-axis.
- a power direction changing mechanism that changes a part of the straight driving force in the y-axis direction in the x-axis direction and moves the pair of rotary saw blades 20, 20 away from the y-axis (that is, outside) when passing each other; And a clamp mechanism 60 for fixing the tube 10 to be cut.
- the rotary saw blades 20 and 20 on both sides are disposed in a rectangular frame 30 that surrounds the path center (that is, the z axis) of the tube 10, and more specifically, the saw blade units on both sides disposed in the frame 30. 40 and 40 are mounted so that the cutting edges overlap in the x-axis direction.
- the frame 30 includes a pair of upper and lower horizontal members 31 and 31 sandwiching the z-axis from above and below, a pair of left and right vertical members 32 and 32 sandwiching the z-axis from both sides, and a quadrangular and vertical back plate 33 fixed to the inside thereof.
- the upper and lower horizontal members 31, 31 are connected to each other on the front side, and connecting rods 34, 34 are provided on both sides, and an opening 35 through which the tube 10 passes is provided at the center of the back plate 33.
- the opening on the front side of the frame 30 has both side closing plates 36, 36 arranged outside the connecting rods 34, 34 on both sides, and a double-opening open / close door 37 arranged inside the connecting rods 34, 34, 37.
- the double door open / close doors 37 and 37 close the opening on the front side of the frame 30, leaving an opening 38 through which the tube 10 passes and a space in which a front clamp 60 ⁇ / b> A (described later) of the clamp mechanism 60 is disposed.
- an opening / closing operation is performed using the connecting rods 34 on both sides as hinge axes.
- the frame 30 constitutes a chip collection box together with a back plate 33 on the back side, closing plates 36 and 36 on the front side, and open / close doors 37 and 37 having a double opening structure.
- One of the open / close doors 37 and 37 which will be described in detail later, also serves as a support for the front clamp 60A.
- the saw blade units 40 on both sides are arranged opposite to both sides of the z axis, which is a path center, and both of them are a first movable body 41 movable in the y axis direction and a first movable body 41 movable in the x axis direction. It is comprised by the combination with the 2 movable body 42.
- the first movable body 41 is located on the line exit side of the back plate 33 in the frame 30, that is, on the front side, and two linear guides in the y-axis direction attached to the front side surface of the back plate 33. 43 is supported so as to be movable in the y-axis direction.
- the linear drive mechanism 50 is synchronously driven in the opposite direction and symmetrically in the y-axis direction.
- the linear drive mechanism 50 is arranged from the back side of the back plate 33 in the frame 30 to the upper side of the frame 30, and the first movable bodies 41, 41 of the saw blade units 40, 40 on both sides are arranged in the y-axis direction. Synchronously drive in the opposite direction.
- the rectilinear drive mechanism 50 includes screw rods 51, 51 on both sides that are vertically and rotatably supported on the back side of the back plate 33, and ball screws 52 on both sides that are screwed to the screw rods 51, 51 on both sides.
- , 52 are connected to the first movable bodies 41, 41 supported on the front side of the back plate 33, and the screw rods 51, 51 on both sides are connected to the frame 30.
- the first movable bodies 41 on both sides are synchronously driven symmetrically in the reverse direction in the y-axis direction as described above by being rotationally driven in the reverse direction synchronously by the motor 53 and the connecting shaft 54 arranged above. To do.
- the saw blade units 40 on both sides are linearly driven in a reverse and symmetrical manner in the y-axis direction together with the rotary saw blades 20 and 20, and pass on and around the x-axis.
- the second movable body 42 is disposed on the front side of the first movable body 41, and supports the rotary saw blade 20 together with the rotary drive machine 21 on the inner portion near the y-axis.
- the rotary drive 21 is a hydraulic motor, and a rotary saw blade 20 is connected to the front side thereof (that is, directly connected) without a reduction mechanism.
- the second movable body 42 is attached to the front side of the first movable body 41 via an elastic member 46 that is a saw blade urging mechanism, and more specifically, on the front side of the first movable body 41.
- a coil spring-like elastic member 46 is supported by two x-axis direction linear guides 44 attached to the surface so as to be movable in the x-axis direction and mounted on two x-axis direction rods 45. It is urged inward by. Then, in the state where the second movable body 42 is elastically held by the urging force at the limit position inside the movable range, the rotary saw blades 20 and 20 in the saw blade units 40 and 40 have their blade edges x. Overlapping in the axial direction.
- curved guides 47, 47 which are guide mechanisms are provided symmetrically so as to sandwich the z axis which is a path center.
- Each curved guide 47 is on the x-axis and has an arcuate guide surface 48 that protrudes outward.
- a part of the second movable body 42 penetrates the first movable body 41 on the back side, protrudes further to the back side of the first movable body 41, and is disposed on the back side of the first movable body 41.
- a contact 49 is supported.
- the contact 49 is a roller that abuts on the guide surface 48 of the curved guide 47 that is a guide mechanism. When the saw blade unit 40 passes on and near the x-axis, the contact 49 is guided by the guide surface 48 and displaced outward. .
- the saw blade unit 40 retreats outward in an arc shape against the urging force of the elastic member 46 when passing on and near the x-axis, The situation where the rotary saw blades 20 on both sides interfere is avoided.
- the clamp mechanism 60 includes a pair of front and rear front clamps 60A and 60B provided on the front side of the back plate 33 in the frame 30.
- the pair of front and rear front clamps 60A and 60B is disposed on the front and rear (that is, on the front side and the back side) of the xy plane, which is the arrangement plane and cutting plane of the rotary saw blades 20 and 20, respectively.
- the front clamp 60A on the front side clamps and fixes the tube 10 from the upper and lower sides at the front side, particularly at a position close to the cutting surface, from the cutting surface by the rotary saw blades 20 and 20, specifically, for the clamping.
- Upper and lower clamp heads 61A, 61A, vertical bar-shaped support members 62A, 62A for supporting the upper and lower clamp heads 61A, 61A from above and below, and upper and lower guide members 63A for guiding the support members 62A, 62A in the vertical direction.
- 63A and upper and lower springs 64A and 64A for urging the support members 62A and 62A in the upper and lower directions with respect to the upper and lower guide members 63A and 63A, respectively.
- the guide members 63A, 63A of the front clamp 60A are attached to one of the double-opening open / close doors 37, 37, here, the inner edge of the right open / close door 37.
- the front clamp 60A pivots to the front side around the right connecting rod 34 and opens the front side of the rotary saw blades 20 and 20. To do.
- the rear clamp 60B on the back side clamps and fixes the tube 10 from the top and bottom at the back side, particularly at a position close to the cut surface, from the cutting surface by the rotary saw blades 20 and 20, and drives the rotary saw blades 20 and 20. It arrange
- the clamp 60B includes upper and lower clamp heads 61B and 61B, vertical bar-shaped support members 62B and 62B that support the upper and lower clamp heads 61B and 61B from the upper and lower sides, and upper and lower that guide the support members 62B and 62B in the vertical direction.
- Guide members 63B and 63B, and the upper and lower guide members 63B and 63B are supported by the frame 30.
- the front and rear cylinders 65 and 65 provided on the upper and lower sides of the frame 30 are connected to the front and rear lifting heads 66 and 66, and the front clamp 60A support members 62A and 62A and the rear clamp 60B support member 62B. , 62B is pressed from above and below by the clamp heads 61A, 61A of the front clamp 60A and the clamp heads 61B, 61B of the rear clamp 60B at positions close to the front and rear cut surfaces of the cut surface. It is clamped from above and below.
- the upper and lower support members 62B and 62B in the rear clamp 60B are connected to the upper and lower lifting heads 66 and 66, but the upper and lower support members 62A and 62A in the front clamp 60A are directed to the front side of the front clamp 60A.
- the upper and lower elevating heads 66 and 66 are in a non-coupled state (edge-cut).
- one of the saw blade units 40, 40 on both sides is in the upper standby position, and the other is in the lower standby position.
- the upper and lower clamp heads 61A and 61A in the front clamp 60A and the upper and lower clamp heads 61B and 61B in the rear clamp 60B are both open vertically.
- the open / close doors 37, 37 having a double opening structure are in a closed state.
- the upper and lower cylinders 65 and 65 are operated, and the upper and lower clamp heads 61A and 61A in the front clamp 60A and the upper and lower clamp heads 61B and 61B in the rear clamp 60B. Drive in the closing direction. Thereby, the pipe
- the rotary saw blades 20 and 20 on both sides start to rotate.
- the saw blade units 40, 40 on both sides start to move straight from the respective standby positions toward the other standby position. That is, one of the saw blade units 40, 40 starts to descend from the upper standby position to the lower standby position, and the other starts to rise from the lower standby position to the upper standby position.
- the rotary saw blades 20 and 20 on both sides mounted on the saw blade units 40 and 40 on both sides are shifted from the symmetrical position (that is, the upper standby position and the lower standby position) to the x axis across the x axis. It goes straight toward the opposite symmetrical position on the x-axis and its vicinity (that is, the lower standby position and the upper standby position). Since the rotary saw blades 20 and 20 on both sides are arranged at positions where the respective blade edges overlap in the x-axis direction, the tube 10 can be moved in a short time by the straight movement of the two rotary saw blades 20 and 20 in the y-axis direction. Can be cut efficiently.
- the tube 10 is cut by the rotary saw blades 20 and 20 on both sides. Chips generated with the cutting of the tube 10 are collected in the frame 30 which is a chip collection box, and scattering to the surroundings is prevented.
- the opening 35 provided in the back plate 33 should be closed with a cover plate or the like, leaving a hole through which the tube 10 with the maximum diameter can pass, and in the case of a small diameter tube, on the outer periphery of the clamp head to be replaced, It is even better to provide a member that covers the gap with the lid plate or the like. By doing so, chips generated during cutting are prevented from scattering to the upstream side, and coupled with the open / close door 37 provided on the downstream side, the efficiency of collecting chips into the frame 30 is improved, and chip collection is achieved. The effectiveness of countermeasures is further improved.
- the operation in which the rotary saw blades 20 and 20 on both sides are retracted outward in the x-axis direction is performed by using the straight driving force in the y-axis direction, that is, by converting in the x-axis direction.
- the necessary power is basically only the rotational driving force for rotating the rotary saw blades 20 and 20 on both sides and the straight driving force in the y-axis direction. For this reason, although the rotary saw blades 20 and 20 on both sides are driven in two directions on the xy plane, the drive mechanism is simplified.
- the rotary saw blades 20 and 20 do not cut the entire tube 10 but only cut about half of the tube 10, the cutting time is shortened compared to the case of cutting the entire tube 10. Moreover, the radius of the rotary saw blades 20 and 20 is reduced, which also contributes to the simplification of the structure.
- the rotary saw blades 20 and 20 After one of the rotary saw blades 20 and 20 is lowered from the upper standby position to the lower standby position and the other is raised from the lower standby position to the upper standby position, the rotary saw blades 20 and 20 are cut in the next cutting. One of these is raised from the lower standby position to the upper standby position, and the other is lowered from the upper standby position to the lower standby position. Thereby, the return operation
- one of the features of the tube cutting machine is that it can cut the tube 10 of various diameters, the outer diameter of the rotary saw blades 20 and 20, the guide surface shape of the curved guides 47 and 47, and the front
- the contact surface shapes of the upper and lower clamp heads 61A and 61A in the clamp 60A and the upper and lower clamp heads 61B and 61B in the rear clamp 60B it is possible to set a wide range of common use.
- the tube 10 can be fixed by the front clamp 60A at a position close to the cut surface, but the back side of the cut surface is rotated. Since there is concern about interference with the saw blade units 40, 40 on which the saw blades 20, 20 are mounted, it is not easy to fix the tube 10 with the rear clamp 60B at a position close to the cutting surface.
- the rotary saw blades 20 and 20 on both sides do not rotate around the tube 10 but are driven straight in the y-axis direction and retreat outward in the x-axis direction. For this reason, a linear space extending in the y-axis direction can be formed between the saw blade units 40 on both sides.
- the front clamp 60A and the rear clamp 60B are designed to be long in the y-axis direction because the clamp direction is the y-axis direction.
- the rear clamp 60B of the tube clamp mechanism 60 can be disposed between the saw blade units 40 on both sides, and the tube 10 can be fixed at a position close to the cut surface both before and after the cut surface. .
- the tube 10 can be fixed at a position close to the cutting surface. As a result, the tube 10 is firmly fixed, so that the cutting efficiency of the tube 10 is increased and the service life of the rotary saw blades 20 and 20 is extended.
- the clamp direction of the front clamp 60A is also the same as the clamp direction of the rear clamp 60B in the y-axis direction. , 66 to open and close. For this reason, the drive mechanism of the clamp mechanism 60 becomes simple.
- the front clamp 60A Since the front clamp 60A is attached to one of the open / close doors 37 and 37 (here, the right open / close door 37), when the open / close doors 37 and 37 are shifted from the closed state to the open state, the front clamp 60A is The front side of the rotary saw blades 20, 20 is opened by pivoting to the front side around the right connecting rod 34. Thereby, it is possible to replace the rotary saw blades 20 and 20 without disassembling a part of the frame 30. For this reason, the exchange operation of the rotary saw blades 20 and 20 is easy.
- the rotary drive machines 21 and 21 of the rotary saw blades 20 and 20 are hydraulic motors here. Since the hydraulic motor is lightweight and has a constant torque, the rotary saw blades 20 and 20 can be directly driven without using a reduction gear. This downsizing increases the space formed between the saw blade units 40 on both sides and facilitates the arrangement of the rear clamp 60B. From this viewpoint as well, the downsizing and weight reduction of the apparatus are promoted. .
- the rotary saw blades 20 and 20 are driven at a constant rotational speed by the hydraulic motor and the ascending / descending speed of the rotary saw blades 20 and 20 is variably controlled by the linear drive mechanism 50, the rotary saw blades 20 and 20 The blade edge life can be extended.
- the pipe cutting machine of the third embodiment and the large-diameter pipe 10 can be cut efficiently in a short time. Moreover, since the structure is simple, it is small and lightweight, and is excellent in economy and durability.
- the x-axis in the xy plane is a horizontal line
- the y-axis is a vertical line with respect to the horizontal line.
- the y axis may be a horizontal line
- the x axis may be a vertical line with respect to the horizontal line.
- the biaxial direction means two perpendicular directions in the xy plane.
- the power direction changing mechanism includes an elastic member 46 provided as a saw blade urging mechanism in the saw blade unit 40, and a curved guide provided as a guide mechanism on the front surface of the back plate 23.
- the present invention is not limited to the combination of the saw blade urging mechanism and the guide mechanism, and a guide rail may be used.
- the saw blade of the rotary saw blade 20 that does not move outwardly out of the pair of saw blades 20, 20 is also saw blade.
- the elastic member 46 as an urging mechanism is illustrated, it is naturally possible to omit the saw blade urging mechanism together with the guide mechanism and fix the rotary saw blade 20 in the x-axis direction.
- the saw blade urging mechanism has at least one of the pair of rotary saw blades 20 and 20 on the inner side in the above-described embodiment.
- the elastic member 46 is elastically held at the movement limit, a pressing mechanism using a fluid pressure such as a hydraulic cylinder or a pneumatic cylinder may be used. That is, the urging force for holding at least one of the pair of rotary saw blades 20, 20 at the inner movement limit may be a spring pressure or a fluid pressure such as a hydraulic pressure.
- the saw blade urging mechanism is a pressing mechanism using fluid pressure
- at least one of the pair of rotary saw blades 20 and 20 is held at the set pressure by the fluid pressure at the inner movement limit.
- the rotary saw blades 20 and 20 on both sides pass on and near the x axis, at least one of the pair of rotary saw blades 20 and 20 is pushed outward by the guide mechanism at a pressure exceeding the set pressure.
- the pressing mechanism based on the fluid pressure can easily increase the pressing force (set pressure) as compared with the case of the elastic member 46, so that the saw blade biasing mechanism can be downsized.
- the adjustment of the pressing force (set pressure) is easy, for example, if the pressing force at the first cutting is increased from the set value and reduced to the set value immediately after cutting, the cutting operation is more stabilized. Can be achieved.
Abstract
Description
切断すべき管の中心線に直角な面をx-y面、前記管の中心を座標の原点として、y軸の両側にx軸方向で刃先がオーバーラップするように対向配置された一対の回転鋸刃と、
前記一対の回転鋸刃がx軸上及びその近傍ですれ違うように、一対の回転鋸刃をy軸方向で逆方向に直進駆動する直進駆動機構と、
前記一対の回転鋸刃がx軸上及びその近傍ですれ違う際に刃先の干渉を回避するべく、y軸方向の直進駆動力の一部をx軸方向に変更して一対の回転鋸刃の少なくとも一方をy軸から離れる外側へ移動させる動力方向変換機構とを具備する。
20 回転鋸刃
21 回転駆動機
30 フレーム
31 水平部材
32 垂直部材
33 背板
34 連結棒
35 開口
36 閉塞板
37 開閉扉
40 鋸刃ユニット
41 第1可動体
42 第2可動体
43,44 直線ガイド
45 ロッド
46 弾性部材(鋸刃付勢機構)
47 湾曲ガイド(ガイド機構)
48 ガイド面
49 接触子
50 直進駆動機構
51 スクリュウロッド
52 ボールネジ
53 モータ
54 連結軸
60 クランプ機構
60A 前クランプ
60B 後クランプ
61A,61B クランプヘッド
62A,62B 支持部材
63A,63B 案内部材
64A スプリング
65 シリンダー
66 昇降ヘッド
Claims (11)
- 管をその中心線に直角に切断する定置式又は走行式の管切断機であって、
切断すべき管の中心線に直角な面をx-y面、前記管の中心を座標の原点として、y軸の両側にx軸方向で刃先がオーバーラップするように対向配置された一対の回転鋸刃と、
前記一対の回転鋸刃がx軸上及びその近傍ですれ違うように、一対の回転鋸刃をy軸方向で逆方向に直進駆動する直進駆動機構と、
前記一対の回転鋸刃がx軸上及びその近傍ですれ違う際に刃先の干渉を回避するべく、y軸方向の直進駆動力の一部をx軸方向に変換して一対の回転鋸刃の少なくとも一方をy軸から離れる外側へ移動させる動力方向変換機構と
を具備する管切断機。 - 請求項1に記載の管切断機において、
前記動力方向変換機構は、一対の回転鋸刃の少なくとも一方をy軸へ近づく内側へ付勢して内側の移動限に保持する鋸刃付勢機構と、
一対の回転鋸刃がx軸上及びその近傍ですれ違う際に一対の回転鋸刃の少なくとも一方を付勢力に抗して外側へ退避移動させるガイド機構とを含む管切断機。 - 請求項2に記載の管切断機において、
前記鋸刃付勢機構は、一対の回転鋸刃の少なくとも一方を内側の移動限に弾性的に押圧保持する弾性部材である管切断機。 - 請求項2に記載の管切断機において、
前記鋸刃付勢機構は、一対の回転鋸刃の少なくとも一方を内側の移動限に流体圧により押圧保持する、流体圧による押圧機構である管切断機。 - 請求項2に記載の管切断機において、
前記ガイド機構は、外側へ凸の湾曲ガイドを含む管切断機。 - 請求項1に記載の管切断機において、
前記回転鋸刃は油圧モータにより駆動される管切断機。 - 請求項6に記載の管切断機において、
前記油圧モータは回転鋸刃と直結される管切断機。 - 請求項1に記載の管切断機において、
更に、一対の回転鋸刃による切断面の正面側及び背面側にそれぞれ配置されて管を固定する前クランプ及び後クランプを具備する管切断機。 - 請求項8に記載の管切断機において、
前記後クランプは、回転鋸刃の直進駆動方向であるy軸方向で管をクランプする管切断機。 - 請求項9に記載の管切断機において、
前記前クランプ及び後クランプは、共に、回転鋸刃の直進駆動方向であるy軸方向で管をクランプする管切断機。 - 請求項8に記載の管切断機において、
一対の回転鋸刃の移動域を覆うことにより、管の切断に伴って発生する切粉を回収する切粉回収ボックスを具備しており、
当該切粉回収ボックスは正面側の開口部を開閉する開閉扉を有すると共に、その開閉扉にて前記前クランプを支持する管切断機。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US16/333,585 US10744578B2 (en) | 2016-09-16 | 2017-09-14 | Pipe cutting machine |
RU2019111155A RU2739359C2 (ru) | 2016-09-16 | 2017-09-14 | Трубоотрезной станок |
CN201780054046.3A CN109661287B (zh) | 2016-09-16 | 2017-09-14 | 切管机 |
JP2018539778A JP6993341B2 (ja) | 2017-01-20 | 2017-09-14 | 管切断機 |
KR1020197007467A KR102496102B1 (ko) | 2016-09-16 | 2017-09-14 | 관 절단기 |
EP17850970.9A EP3513894B1 (en) | 2016-09-16 | 2017-09-14 | Pipe cutting machine |
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JP2016182160A JP6072971B1 (ja) | 2016-09-16 | 2016-09-16 | 管切断機 |
JP2016-182160 | 2016-09-16 | ||
JP2017008510 | 2017-01-20 | ||
JP2017-008510 | 2017-01-20 |
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PCT/JP2017/033220 WO2018052069A1 (ja) | 2016-09-16 | 2017-09-14 | 管切断機 |
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EP (1) | EP3513894B1 (ja) |
KR (1) | KR102496102B1 (ja) |
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CN117226166A (zh) * | 2023-11-10 | 2023-12-15 | 中创新航科技集团股份有限公司 | 一种电池的切割方法及切割装置 |
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- 2017-09-14 EP EP17850970.9A patent/EP3513894B1/en active Active
- 2017-09-14 KR KR1020197007467A patent/KR102496102B1/ko active IP Right Grant
- 2017-09-14 RU RU2019111155A patent/RU2739359C2/ru active
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Also Published As
Publication number | Publication date |
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RU2019111155A3 (ja) | 2020-10-16 |
RU2739359C2 (ru) | 2020-12-23 |
KR20190051979A (ko) | 2019-05-15 |
EP3513894A4 (en) | 2020-10-28 |
KR102496102B1 (ko) | 2023-02-06 |
CN109661287A (zh) | 2019-04-19 |
RU2019111155A (ru) | 2020-10-16 |
US20190255629A1 (en) | 2019-08-22 |
EP3513894B1 (en) | 2021-11-24 |
US10744578B2 (en) | 2020-08-18 |
EP3513894A1 (en) | 2019-07-24 |
CN109661287B (zh) | 2021-09-24 |
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