JP5441725B2 - Long round pipe and round bar cutting machine - Google Patents

Description

  The present invention relates to a cutting machine for simultaneously cutting a plurality of long round pipes, round bars, etc. made of metal or the like with a saw blade.

In general, when cutting a thin material with a small diameter with a saw blade of a cutting machine, it is extremely inefficient to cut one piece at a time. ing.
This long material bundle shape is sure to be gripped and fixed by the clamp part of the main vise and feed vise of the cutting machine, the conveying vise of the autoloader, etc. In order to prevent abnormal wear and tear, etc., a shape that is a stable assembly state is selected according to the cross-sectional outline of the long material, and the vice jaw of each vise has a clamp shape corresponding to the long material bundle shape When the above-described bundle cutting is performed, an operator assembles and bundles a plurality of long materials as cutting units by hand, and in this state, holds them with both hands and inserts them into the clamp part of the cutting machine. In general, it is inefficient and requires a lot of labor, and the bundling shape collapses during carrying, making it impossible to clamp, or clamping in an insufficiently assembled state, causing damage to the material surface. With, bent or hollow In order to cause material loss due to crushing of the material, or to cause deterioration in dimensional accuracy due to displacement of the material at the time of cutting or defective cutting surface, a plurality of long materials are bundled in the clamp part of the cutting machine. In bundle cutting in which fixed-length cutting is performed with a saw blade while gripping and intermittently feeding, a restriction piece having a material insertion hole having a shape corresponding to the bundle shape of the plurality of long materials is used, and the restriction piece is previously long. A configuration is disclosed in which a bundle shape is held by being externally slidably fitted to a plurality of locations of a length material bundle and used for cutting in this state (Patent Document 1).
However, since the long material cutting machine uses a restraining piece, the long material is inserted into the material insertion hole of the restraining piece before cutting, or the long material is screwed narrowly with the divided restraining piece. It is necessary to hold it, and after cutting, it is necessary to collect the restraint piece. The restraint piece for restraining the round pipe and round bar is composed of a rhombus and a triangle with the top at the top and the bottom at the bottom. Therefore, after cutting the round pipe / round bar, the main vise of the cutting machine is released and intermittently fed. Since it is configured to be chucked from the beginning, there are problems such as biting round pipes and round bars, and because it is a general-purpose machine corresponding to various long material shapes, equipment for equipment enlargement and jig replacement Has become complicated and expensive.

In addition, a pipe cutting machine that cuts pipes without bundling them is provided with a pair of clamp means for holding the pipes at the top and bottom at predetermined intervals, and has a V-shaped groove for supporting the lower semicircular side of the pipe. The pipe receiving block is formed, and the pipe holding block is arranged above the pipe receiving block so as to be movable up and down and has a V-shaped groove for pressing and supporting the upper semicircular side of the pipe. There is disclosed a pipe cutting machine that cuts a large number of pipes at the same time by providing a rotary cutting blade that reciprocally traverses and supplying a plurality of pipes horizontally (Patent Document 2).
That is, the pipe cutting machine reciprocates the cutting part provided with the rotary cutting blade on the bed provided at the lower part to cut the pipe, and the lower clamp is separated in the longitudinal direction of the pipe. By swinging left and right, the pipe is pivotally supported at the four outer diameters, and the vibration generated when the rotary cutting blade crosses the pipe for cutting is not transmitted to the pipe, so the pipe does not rattle and burr It is said that a good cut surface can be formed with high accuracy that does not occur.
However, since the above-mentioned long material cutting machine is arranged by cutting a pipe in the horizontal direction, not only the size of the apparatus is increased due to the spread of the apparatus in the horizontal direction, but also the number of pipe cutting is restricted, There are problems such as workability on the supply side (not described in detail in Patent Document 2) and an increase in material storage.
In particular, a round pipe formed by welding or the like from a sheet metal sheet, a round pipe incorporating a resin inside, etc., a slight warp remains after correcting the warp, and a cutting machine on the premise that it is in a straight state, There were problems such as the round pipe getting caught in the device and causing load collapse.

Japanese Patent Laid-Open No. 10-225819 JP 2008-142832 A

  In view of the prior art as described above, in the present invention, a plurality of thin long round pipes and round bars are simultaneously cut without using a restraining piece, so that workability is good, the apparatus can be downsized, and inexpensive. It is an object of the present invention to provide a long round pipe / round bar cutting machine capable of cutting with high accuracy.

The inventor of the present invention has intensively studied to solve the above problems, and as a result, has completed the invention having the following configuration.
The invention of claim 1 is provided with a material setting table and a shape setting portion on the side surface of the material setting table, provided with a rotary cutting blade that is driven up and down, and provided with a gap through which the rotary cutting blade passes to pass the member to be cut. A reverse vise with a reverse equilateral triangle receiving side vise and a trapezoidal holding side vise provided in the front and rear direction, an inverted equilateral triangle V guide provided between the shape setting part and the main vise, and sliding through the V guide It is characterized by the provision of a conveying vise equipped with an equilateral triangle receiving side vise and a trapezoidal holding side vise, which is easy to work with, can be downsized, can be manufactured at low cost, and uses a restraining piece We have found that it is possible to realize a long round pipe / bar cutting machine that can cut multiple pieces at the same time.

  The invention according to claim 2 is the long round pipe / round bar cutting machine according to claim 1, wherein the shape setting portion on the side surface of the material placing table includes a roller having a plurality of inverted equilateral triangular grooves and the material placing table. A plurality of inverted equilateral triangular V-shaped receivers having a short side and a long side facing the material placing table are provided.

  A third aspect of the invention is the long round pipe / round bar cutting machine according to the first or second aspect, wherein the vise jaw of the conveying vise is a hard elastic material.

  A fourth aspect of the present invention is the long round pipe / round bar cutting machine according to any one of the first to third aspects, wherein the vise jaw of the main vise is a hard elastic material. Is.

The long round pipe / round bar cutting machine of the present invention is provided with an inverted equilateral triangular receiving side vise and a trapezoidal holding side vise in the front and rear direction of the member to be cut by providing a gap through which the rotary cutting blade passes. Since it has a vise, there are 1 long round pipe / round bar in the bottom 1st stage, 2 in the 2nd stage from the bottom, 3 in the 3rd stage, ... n in the nth stage It can be placed horizontally, each round pipe and round bar can be brought into contact with each other at four or more outside diameters, vibration during cutting with a rotary cutting blade can be prevented, and there is no burr. A good cutting surface can be formed with high accuracy, and an inverted equilateral triangular V guide is provided between the shape setting part and the main vice, and an inverted equilateral triangular receiving side vise and a trapezoidal holding side vise sliding through the V guide are provided. Since the transport vice is provided, multiple long round pipes and round bars can be used with the arrangement described above. It can be intermittently fed without collapsing the load, and the shape setting part on the side of the material table has a short roller and a material table side with a plurality of inverted equilateral triangular grooves, and the side facing the material table Since there are multiple long inverted equilateral triangular V-shaped receptacles, long round pipes and round bars can be easily turned into inverted equilateral triangles from the material stand before setting the long round pipes and round bars to the conveying vise. Since it is an inverted equilateral triangular V-shaped receptacle with a long side facing the material stand, it can be securely placed on the roller without dropping the long round pipe / round bar. A piece is not required, the workability is good, and a plurality of long round pipes / round bars can be easily moved to the conveying vise side by the rolling action of the roller.
The vise jaw of the conveying vise is made of hard elastic material, so it can absorb irregularities caused by accumulated dimensional errors of multiple round pipes and round bars, and can securely press and fix the round pipes and round bars. By chucking multiple round pipes and round bars, the round pipes and round bars can be moved smoothly without moving the vice backward from the forward feed to the opposite direction.
In addition, since the vise jaw of the main vice is made of a hard elastic material, it can absorb irregularities due to dimensional error accumulation of multiple round pipes and round bars, and can securely press and fix round pipes and round bars. The long round pipe / round bar cutting machine of the present invention has many effects, such as the round pipe / round bar does not rattle and can form a good cutting surface with high accuracy without causing burrs. is there.

Side view showing an embodiment of a long round pipe / round bar cutting machine of the present invention The top view which shows the Example of the cutting machine of the long round pipe and round bar of this invention Sectional drawing which shows the principal part which shows the cross section in AA of FIG. Side view at BB in FIG. The side view which expanded the main body frame side of FIG. The top view which expanded the main body frame side of FIG. Left side view of FIG. Sectional drawing in CC of FIG. The perspective view which shows the principal part of the main vice part of this invention, and a conveyance vice part. Example of the embodiment of the present invention Action explanatory drawing of the long round pipe and round bar cutting machine of the present invention

  Hereinafter, specific modes for carrying out the present invention will be described in detail with reference to FIGS. In the figure, the same reference numerals are given to common components, and detailed description is omitted.

FIG. 1 is a side view of a long round pipe / round bar cutting machine 1 according to the present invention, and FIG. 2 is a plan view thereof.
In the figure, reference numeral 2 denotes a material stand made up of a frame made of an L angle material or the like, and 3 denotes a main body frame made up of a frame made of an L angle or a grooved steel. The material stand 2 and the main body frame 3 are installed on the floor (GL), height-adjusted with an adjusting bolt 4 etc. provided at the bottom, and the material divided so that the conveying line 5 is in a straight line in the vertical and horizontal directions. The cradle 2 and the main body frame 3 are integrally installed to constitute a long round pipe / round bar cutting machine. Reference numeral 6 denotes a roller formed with an inverted equilateral triangular groove, and reference numeral 7 denotes an inverted equilateral triangular V-shaped receiver. A plurality of rollers are appropriately provided on the upper part of the worker-side material stand 2 to form a shape setting unit 8.

FIG. 3 is a cross-sectional view of the main part showing the cross section taken along the line AA of FIG.
In the figure, a roller 6 indicated by a two-dot chain line is pivotally supported on the side surface of the material table 2 and is rotatable. The inverted equilateral triangular V-shaped receiver 7 is made of MC nylon resin material (registered trademark of Nippon Polypenco, engineering plastic material with excellent friction characteristics and self-lubricating property) with low frictional resistance. The mounting bracket 9 is fixed to the mounting bracket 9 with a screw 10 or the like, and is formed in a V shape that is large on the operator side and lower than the upper surface on the material stand 2 side. The V shape has the same shape as the inverted equilateral triangular groove of the roller 6, and the inverted equilateral triangular V-shaped receiver 7 on the side facing the material placing base 2 is formed to be longer than the inverted equilateral triangular groove of the roller 6. ing.
4 is a side view of the material table 2 taken along the line BB of FIG.
Reference numeral 11 denotes a contact plate provided on the side surface of the material placing table 2, and places the long round pipe / round bar 12 to be cut on the material placing table 2 with the end thereof aligned.
As shown by the arrow in FIG. 3, the operator can easily set the long round pipe / round bar 12 placed on the material table 2 to the shape setting unit 8 and drop it off the roller 6. It can be set securely without any problems. Moreover, even if the operator supports the set long round pipe / round bar 12 and moves to the main body frame 3 side, the work can be easily performed without collapsing the set shape.

5 is an enlarged side view of the main body frame 3 side of the long round pipe / round bar cutting machine 1 of FIG. 1, and FIG. 6 is a plan view of the long round pipe / round bar of FIG. FIG. 3 is an enlarged plan view of the main body frame 3 side of the machine 1.
In the figure, reference numeral 20 denotes a motor with a brake for driving a screw shaft 21 of a ball screw. The screw shaft 21 is supported by bearings 22 at both ends of the main body frame 3, and the pulley 23 of the motor with brake and the end of the ball screw shaft 21 are supported. A pulley 24 provided in the section is rotated via a belt (not shown). The motor 20 with a brake is attached to the lower part of the right side surface of the main body frame 3. The selection of the ball screw is appropriately performed according to the required accuracy of the cutting length of the long round pipe / round bar. Reference numeral 25 indicated by a two-dot chain line is a protective cover that covers the pulleys 23 and 24 and the belt.
Reference numeral 30 denotes an inverted equilateral triangular V guide formed of sheet metal, which is fixed at both ends of the main body frame 3 and through which the conveying vise 35 is inserted. A roller 31 similar to the roller 6 provided in the shape setting unit 8 is provided at the upper right end of the main body frame 3, and a plurality of long round pipes / round bars 12 set in the shape setting unit 8 are transferred to the conveyance vise 35. To guide. The conveying vise 35 is moved by a ball screw between a left side 35 (L) and a right side 35 (R) shown in FIG. Reference numeral 36 denotes a cable carrier that houses a hydraulic hose or the like that is electrically connected to a hydraulic device 37 provided at the lower portion of the conveyance vise 35. Two points are provided as the conveyance vice 35 moves between the left side 35 (L) and the right side 35 (R). It moves between 36 (L) and 36 (R) indicated by the chain line. Reference numeral 32 denotes a convex rail that receives the conveying vise 35 and is fixed to the short side of the main body frame 3 or both upper sides in the hand direction.
50 is a tip saw cutting machine provided at the left end of the main body frame 3, 51 is a disk-shaped rotary cutting blade (saw blade), 52 is a drive motor, and a pulley for the rotary cutting blade (saw blade) 51. 53 and the pulley 54 of the drive motor 52 rotate the saw blade 51 via the belt 55 to cut a plurality of long round pipes / round bars 12. Reference numeral 56 indicated by a two-dot chain line is a protective cover that covers the pulleys 53 and 54 and the belt 55.
FIG. 7 is a left side view of FIG.
Reference numeral 57 denotes a hydraulic device that moves the tip-saw cutting machine 50 up and down and moves a disk-shaped rotary cutting blade (saw blade) 51 to the vertical position shown in FIG. Disconnect.
5 and 6, 58 and 59 shown in the front and rear direction of the member to be cut are main vices, and a rotary cutting blade (saw blade) 51 passes through a gap 60 between the main vices 58 and 59. A hydraulic device 61 is provided below the main vices 58 and 59 to drive the upper main vise 62 shown in FIG. The upper main vise 62 of the main vices 58 and 59 shares the hydraulic device 61 provided in the lower part. The rods 63 provided on both sides of the upper main vise 62 pass through both sides of the lower main vise 64 and are driven up and down via the cylinder rod 65 of the hydraulic device 61. 66 is an upper vise jaw provided at the lower portion of the upper main vise 62, 67 is a lower vise jaw provided at the lower main vise 64, which is made of MC nylon resin material or the like, and the upper vise jaw 66 is trapezoidal and has a lower vise. The jaw 67 is formed in an inverted equilateral triangle shape. The trapezoidal shape of the upper vise jaw 66 is configured such that no galling occurs even if it slightly bites into the inverted equilateral triangle shape of the lower vise jaw 67.
Reference numeral 68 in FIGS. 5 and 6 denotes a discharge shooter, which discharges round pipes and round bars cut by the tip saw cutting machine 50. Reference numeral 77 denotes a metal fitting for cutting with a long length that does not discharge from the discharge shooter 68. FIG. 6 shows a state in which the tip saw cutting machine 50 is partially broken. Reference numeral 69 denotes a control panel, and reference numeral 70 denotes an operation panel.

8 is a cross-sectional view taken along the line CC in FIG.
In the figure, reference numeral 13 denotes a grooved steel constituting the upper part of the main body frame 3. A convex rail 32 is fixed on the upper part, and a concave slider 33 slides. On the upper part of the concave slider 33, a frame 38 of the conveying vise 35 is placed and fixed. A frame 39 for fixing the hydraulic device 37 is provided at the lower portion of the frame 38, and is fixed to the frame 38 via a frame 40 provided before and after the paper surface. Reference numeral 26 denotes a nut having a ball incorporated therein, and the ball screw shaft 21 passes through the center. The nut 26 is fixed to the lower surface of the frame 38 via a nut attachment 27. As the ball screw shaft 21 rotates forward and backward, the frame 38 moves on the rail 32 back and forth on the paper surface. Reference numeral 28 denotes a position detection sensor unit which communicates signals for adjusting the origin of the control panel 69 and the conveyance vice 35 and preventing overrun.
Reference numeral 41 denotes a lower conveying vise. A substantially inverted equilateral triangular V-groove 42 is formed at the upper center, a through hole 44 through which the rod 43 penetrates is formed on both sides, and an upper conveying vise 45 is provided above the rod 43. A connecting frame 46 is provided at the lower end of the rod, fixed to the cylinder rod 47 of the hydraulic device 37, and the upper conveying vise 45 operates as indicated by the up and down arrows. Reference numeral 48 denotes an upper transfer vise jaw made of MC nylon resin material or the like, which is formed in a trapezoidal shape and fixed to the lower surface of the upper transfer vise 45. Reference numeral 49 denotes a lower transfer vise jaw formed in an inverted equilateral triangle V shape made of MC nylon resin material, etc., fixed to the lower transfer vise 41, and the lower surface of the lower transfer vise jaw 49 and the V of the lower transfer vise 41 A V-shaped space 34 is formed between the grooves 42, and the V guide 30 is inserted through the V-shaped space 34.
FIG. 9 is a perspective view showing the main parts of the main vice unit and the conveying vice unit.
In the drawing, the lower transfer vise jaw 49 is formed to be larger than the width W of the transfer vise 35, and in order to reinforce the lower transfer vise jaw 49, a receiving metal fitting 75 formed of a sheet metal or the like for receiving the lower portion is preferably provided. A corner cut 76 for preventing catching is provided on the side of the lower conveying vise jaw 49 where the long round pipe / round bar 12 enters. This is because the thickness of the lower conveying vise jaw 49 can be reduced by providing a metal fitting 75 formed of a sheet metal or the like for receiving the lower portion of the lower conveying vise jaw 49, so that the level difference from the V guide 30 is reduced. It is possible to minimize the drooping of a plurality of long round pipes / round bars 12 and to prevent collapse of the load.

  In FIG. 8, by moving the cylinder rod 47 of the hydraulic device 37 in the vertical direction of the arrow, the long round pipe / round bar 12 is chucked by the upper transfer vise jaw 48 and the lower transfer vise jaw 49, and in the chucked state. By rotating the ball screw shaft 21 forward and backward, the conveying vice 35 can be moved between 35 (L) and 35 (R) shown in FIG. While the main vice 58, 59 chucks and cuts the long round pipe / round bar 12, the conveying vise 35 retreats a predetermined dimension and chucks the long round pipe / round bar 12 again. Feeds in a constant dimension in the direction of the rotary cutting blade 51.

FIGS. 10A to 10E are exemplary views showing a state in which long round pipes / round bars 12 of various sizes are set in the main vice portion.
The figure shows that by fixing the lower vise jaw 67 and replacing the upper vise jaw 66, it is possible to cope with various diameters without changing the stroke setting of the cylinder rod 65. Needless to say, the lower vise jaw 67 can be replaced and the stroke setting of the cylinder rod 65 can be changed to accommodate various diameters (not shown).

The above operation will be described with reference to FIGS. 11A to 11E showing work procedures.
(A) An operator moves and sets a predetermined number of long round pipes / round bars 12 from the material table 2 to the shape setting section 8 in the direction of the arrow.
(B) The transport vise 35 is moved to the right end 35 (R) of the main body frame 3, and the operator moves a predetermined number of long round pipes / round bars 12 in the direction of the arrow to the left from the transport vise 35 (R). Set with extra length of predetermined length and chuck the long round pipe / round bar 12.
(C) By means of the conveying vise 35, the long round pipe / round bar 12 is moved in the direction of the arrow at the left end 35 (L) of the main body frame 3, and the main vice 58, 59 (actually separated, but the figure is shown in one piece. The long round pipe / round bar 12 is chucked. Thereafter, the ends of the long round pipe / round bar 12 are trimmed with a rotary cutting blade (saw blade) 51 provided in the tip saw cutting machine 50.
(D) While the end of the long round pipe / round bar 12 is trimmed by the rotary cutting blade (saw blade) 51 provided in the tip saw cutting machine 50, the conveying vise 35 is retracted by a predetermined dimension to Chuck round shank pipe and round bar 12. Even if the long round pipe / round bar 12 has been cut with the rotary cutting blade (saw blade) 51, the main vice 58, 59 until the conveying vise 35 chucks the long round pipe / round bar 12. Has chucked a long round pipe and round bar 12.
(E) The conveying vise 35 is moved again in the direction of the left end 35 (L) arrow of the main body frame 3 to cut the long round pipe / round bar 12 with a predetermined dimension. Round pipes and round bars cut to a predetermined size are discharged from the discharge shooter 68 and packed in a product box or the like by an operator.
(F) Repeat until the long round pipe / round bar 12 in which (d) to (e) are set disappears. The long round pipe / round bar 12 left at the end is discharged by the operator.
If the above-mentioned movement of the predetermined length of the long round pipe / round bar 12 is programmed in advance, the operator can perform the first (a) setting and (e) product discharge processing, the first end. Only the part and the remaining piece are processed.

DESCRIPTION OF SYMBOLS 1 Long round pipe and round bar cutting machine 2 Material stand 3 Main body frame 4 Adjustment bolt 5 Conveyance line 6 Roller 7 V-shaped support 8 Shape setting part 9 Mounting bracket 10 Screw 11 Cover plate 12 Round pipe and round bar 13 Groove Shaped steel 14 Rail 20 Motor with brake 21 Ball screw shaft 22 Bearings 23 and 24 Pulley 25 Protective cover 26 Nut 27 Nut attachment 28 Position detection sensor 30 V guide 31 Roller 32 Rail 33 Slider 34 V-shaped space 35 Conveyance vise 36 Cable carrier 37 Hydraulic device 38, 39, 40 Frame 41 Lower conveying vise 42 V groove 43 Rod 44 Through hole 45 Upper conveying vise 46 Connecting frame 47 Cylinder rod 48 Upper conveying vise jaw 49 Lower conveying vise jaw 50 Chip saw cutting machine 51 Rotating type Cutting blade (saw )
52 Drive motor 53, 54 Pulley 55 Belt 56 Protective cover 57 Hydraulic device 58, 59 Main vice 60 Clearance 61 Hydraulic device 62 Upper main vise 63 Rod 64 Lower main vise 65 Cylinder rod 66 Upper vise jaw 67 Lower vise jaw 68 Discharge shooter 69 Control panel 70 Operation panel 75 Bracket 76 Corner cut 77 Bracket

Claims (4)

  A shape setting part is provided on the material table and the side surface of the material table, and a rotary cutting blade that is driven up and down is provided. A receiving vise having a receiving vise and a trapezoidal holding vise, an inverted equilateral triangular V guide provided between the shape setting portion and the main vise, and an inverted equilateral triangular receiving vise that slides through the V guide; A long round pipe / round bar cutting machine provided with a conveying vise having a trapezoidal holding side vise.   The shape setting portion on the side surface of the material table is provided with a plurality of inverted equilateral triangular V-shaped receivers having a plurality of inverted equilateral triangular grooves and a short material material table side and a long side facing the material table. The long round pipe / round bar cutting machine according to claim 1.   3. The long round pipe / round bar cutting machine according to claim 1, wherein the vise jaw of the conveying vise is a hard elastic material.   4. The long round pipe / round bar cutting machine according to claim 1, wherein the vice jaw of the main vise is a hard elastic material.

Images