WO2006098349A1

WO2006098349A1 - Band sawing machine

Info

Publication number: WO2006098349A1
Application number: PCT/JP2006/305087
Authority: WO
Inventors: Akio Seto; Minoru Gotoh
Original assignee: Amada Company, Limited; Amada Cutting Co., Ltd.
Priority date: 2005-03-17
Filing date: 2006-03-15
Publication date: 2006-09-21
Also published as: TWI296950B; JP4776255B2; TW200639010A; JP2006255839A

Abstract

A band sawing machine, comprising a pair of saw blade guides (27F) and (27M) capable of running and guiding a band saw blade (9) therethrough. A front insert (59) is fixedly fitted and a rear insert (77) is longitudinally movably fitted to the tips of the saw blade guides. The band sawing machine is characterized in that the rear insert (77) is swung by the drive force of a cylinder (91) while utilizing the principle of leverage to move the rear insert (77) close to and away from the front insert (59) so as to guide the band saw blade (9).

Description

Band saw machine

Technical field

[0001] The present invention relates to a band saw, and more particularly to a band saw capable of separating the saw blade from a material force when the saw blade is raised and returned.

Background art

[0002] The saw blade guide device in the band saw machine has a fixed vise jaw 207F and a movable vise jaw in the case shown in FIG. 7, that is, between the rear vice 201 and the machining position through which the band saw blade 205 passes. When the main body vise 207 is also provided with 207M! /, The force that can separate the workpiece W from the band saw blade 205 by the rear vise 201 The cutting material WA cannot be separated from the band saw blade 205. . Noise that can move in the feed direction to the cutting material WA side with the band saw blade 205.For example, the front vise 203 (203F, 203M) must be provided separately to be movable in the feed direction. Nana,

[0003] The device developed there is shown in FIG. 1, and its principle will be described with reference to FIG. This solves the problem that the cutting material WA is not moved, but only the workpiece W is moved, so that the cost and the space must be increased. In other words, only the rear device 201 is moved to the left (in the R direction in the figure) (distance ED) and the workpiece W is moved to the left in the figure. Further, when the rear insert 267 is moved to the left in the figure, the band saw blade 205 is changed from the state indicated by the solid line to the state indicated by the two-dot chain line with the inherent restoring force, and the cutting edge is moved from the workpiece W and the cutting material WA. They are separated.

[0004] The rear insert 267 releases the hydraulic pressure of the cylinder 271 formed in the saw blade guide 227 shown in FIG. 1 so that the spring 279 urges the piston 273 to the left in the drawing. The joined rear insert 267 also moves to the left in the figure. This technique is disclosed in Japanese Patent Publication No. 2004-42210 (Patent Document 1).

[0005] While the force is applied, the saw blade guide 227 moves between the cylinder 271 and the piston 273. It has a structure that can be moved in the axial direction, and in order to form the cylinder 271 in a limited space, the cross-sectional area cannot be made large, the pressing force is limited, and the gripping force of the saw blade by the insert is also limited. there were.

[0006] The present invention has been made to solve the above-described problems, and its object is to secure a large saw blade gripping force even when a cylinder having a relatively small V and cross-sectional area is used. An object of the present invention is to provide a band saw machine with a saw blade guide that can be used.

Disclosure of the invention

[0007] In order to achieve the above object, a band saw machine according to the first aspect of the present invention includes the following: The work is placed behind a cutting position where a work to be cut is cut by a band saw blade. Clamping body vise; Feeding vise that can move back and forth to feed workpieces; Saw blade housing with drive wheel and driven wheel wound with the band saw blade; Twist the band saw blade in the saw blade housing And a pair of saw blade guides for traveling and guiding the band saw blade; a plurality of first inserts and second inserts provided in the front-rear direction at the tip of the saw blade guide, wherein the first insert is disposed in the front-rear direction A first oscillating member for oscillating the first insert, wherein the first insert is fixed to the oscillating member; and the first oscillating member. Element A first driving means for swinging by the driving force of the first driving means, by utilizing this principle for oscillating the first insert Te. This guides the band saw blade by moving the first insert closer to and away from the second insert.

[0008] In the band saw machine according to the second aspect of the present invention, which is dependent on the first aspect, in the above configuration, the range of the back-and-forth movement of the first insert is that the cutting edge of the moving band saw blade is the cutting surface of the workpiece This is a range that allows the force to be separated.

[0009] The band saw machine according to the third aspect of the present invention, which is dependent on the first aspect or the second aspect, has a contact force between the first driving means and the first rocking member in the configuration. The distance to the swing center of the first swing member is greater than the distance from the swing center of the first swing member to the center of the first insert.

[0010] The band saw machine based on the fourth aspect of the present invention, which is dependent on any one of the first aspect to the third aspect, further includes the following: A plurality of first guide rollers and second guide rollers provided at the tip in the front-rear direction, wherein a plurality of the first guide rollers are provided movably in the front-rear direction; the first guide roller is swung A second rocking member to be moved, the first guide roller being fixed to the second rocking member; and a second driving means for rocking the second rocking member. The first guide roller is moved closer to and away from the second guide roller by swinging the first guide roller using the lever principle by the driving force of the second driving means. To guide the band saw blade.

[0011] According to the first to fourth aspects of the present invention described above, a large saw blade gripping force can be ensured even when a cylinder, which is a driving means having a relatively small cross-sectional area, is used. Thus, the compactness of the apparatus can be achieved, and the cutting accuracy can be improved.

Brief Description of Drawings

FIG. 1 is a side view of a saw blade guide in a conventional band saw machine.

[Fig. 2] Fig. 2 is an enlarged side view of the saw blade guide of the band saw machine according to the embodiment of the present invention as viewed in the direction of arrow II in Fig. 4. The front insert and the rear insert guide the band saw blade to travel. It is the figure which showed the state.

FIG. 3 is an enlarged front view of a fixed saw blade guide and a movable saw blade guide of the band saw machine according to the embodiment of the present invention.

FIG. 4 is a perspective view of, for example, a horizontal band saw machine as a band saw machine.

FIG. 5 is a cross-sectional view taken along the line V-V in FIG.

FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG.

[FIG. 7] FIG. 7 is a plan view illustrating a state in which the workpiece is moved by the main body vise, the feeding vise, and the front vise after cutting.

[FIG. 8] FIG. 8 is a plan view for explaining a state in which the workpiece is moved, and the tip of the band saw blade is separated from the workpiece and the cutting material force cut from the workpiece.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0014] First, an outline of a band saw machine according to an embodiment of the present invention will be described with reference to FIG. Book For example, a horizontal band saw 1 as a band saw based on the invention includes a cutting unit 3 for feeding and cutting a workpiece w by a fixed size, a support unit 5 for mounting and supporting the workpiece W, and a workpiece W It is composed of the vice mechanism 7 etc.

Here, F shown in FIG. 4 is the front side of the band saw and is usually the side on which the operator is positioned. R is the back side of the band saw. A direction extending to the F side and the R side is referred to as an X axis (X-AXIS in the figure), and a direction perpendicular to the X axis is referred to as a Y axis (Y-AXIS in the figure). This is a code common to all of FIGS. 1 to 8 of the drawings attached to the specification of the present invention.

[0016] The cutting section 3 includes a band saw blade 9, a saw blade housing 11, and the like. In FIG. 4 of the saw blade housing 11, the right saw blade housing section 13 and the left saw blade housing section 15 are respectively provided. A driving wheel 17 and a driven wheel 19 are rotatably supported, and the band saw blade 9 is wound around the driving wheel 17 and the driven wheel 19. The right saw blade housing portion 13 and the left saw blade housing portion 15 are connected by a beam member 21 and connected to the beam member 21 through a plurality of support frames 23 in the left-right direction in FIG. Frame 25 is installed. A movable saw blade guide 27M movable in the left-right direction is provided on the left side of the connection frame 25, and a fixed saw blade guide 27F is provided on the right side of the connection frame 25.

[0017] A plurality of support rollers 29 for placing and supporting the workpiece W are provided on the support portion 5 on a frame 31 so as to be rotatable at an appropriate interval. And the table 33 is arranged on the right side. The workpiece W is fed from the rear in the X-axis direction (left-right direction in FIG. 4) to the front in the rear direction of the X-axis, and is clamped and fixed by the vice mechanism section 7. Each of the support rollers 29 is rotatably supported by a roller frame 35 provided separately from the frame 31 over almost the entire length of the feeding path of the workpiece W.

[0018] The noise mechanism section 7 includes a main body vise 37 and a feeding vise 39. The main body noise 37 is composed of a main body fixed vise jaw 41 and a main body movable vise jaw 43 that can reciprocate in a direction approaching and moving away from the main body fixed vise jaw 41, and is located immediately before the cutting position formed by the band saw blade 9. It is arranged in. [0019] On the other hand, the material feeding vise 39 is composed of a material feeding fixed vise jaw 45 and a material feedable movable jaw 47 as in the case of the body vise 37. It is configured so that it can be moved toward and away (movable back and forth). Also, the feed material movable noise jaw 47 can move forward and backward in the direction of the feed material fixing vise jaw 45 via a fluid pressure mechanism 49 such as a hydraulic cylinder! The fluid pressure mechanism 49 is supported by a vise bed 51 so as to be movable in the Y-axis direction.

The movable saw blade guide 27M and the fixed saw blade guide 27F are provided with a guide body 55 at the lower end of a guide frame 53 as shown in FIG.

A front insert 59 as a second insert is fixed to the lower portion of the guide main body 55 by a bolt 61 at the lower portion of the guide main body 55. Further, behind the front insert 59, a rear insert 77 as a first insert is provided below the guide body 55 so as to be movable back and forth with respect to the front insert 63.

5 and 6 are enlarged partial sectional views of the guide body 55. FIG. As shown in FIGS. 5 and 6, the guide main body 55 has a front block portion 57 formed forward (right side in FIGS. 5 and 6).

[0023] The rear insert 77 is fixed to a first swinging member 75 swingable about a pivot 73 provided in the guide main body 55 via a bolt 79, and the first insert 77 is fixed to the first swinging member 75. When the swing member 75 swings, the swing member 75 swings together in the front-rear direction (left-right direction in FIG. 5). The front block portion 57 of the guide body 55 is provided with a first cylinder 91 which is a first driving means and a piston 99 which can slide in the first cylinder 91. The swing member 75 is accommodated in a recess 67 formed in the guide body 55.

When pressure oil flows into the cylinder chamber 93 of the first cylinder 91 via the pipe lines 97, 95, the knob portion 101 formed at the tip of the piston 99 is moved to the first swing member 75. Swing counterclockwise in Fig. 5. Since the lower end of the first swing member 75 swings and moves in the right direction in FIG. 4, the rear insert 77 can move closer to and away from the front insert 59, and the rear The side insert 77 and the front insert 59 cooperate to guide the band saw blade 9 while sandwiching it.

On the other hand, when the pressure oil in the cylinder chamber 93 can flow out, the guide body 55 A spring 87 provided with a fixing member 88 urges the swing member 75 so that the swing member 75 swings clockwise in FIG. 5, and the rear insert 77 is moved to the front insert 59. Can be separated from. Thus, as shown in FIG. 8, when the workpiece W is retracted backward, the band saw blade 9 returns to the rotation direction indicated by the two-dot chain line in FIG. The cutting edge of the band saw blade 9 is also separated from the cutting material WA as shown in FIG. Therefore, the cutting edge of the band saw blade 9 can be separated from both the workpiece W and the cutting material WA, and even if the band saw blade 9 is raised and returned, the blade will not spill.

Here, from the contact point between the knob portion 101 of the piston 99 of the first cylinder 91 as the first driving means and the first swing member 75, the first swing member 75 The distance to the center of the pivot 73 (swing center) is larger than the distance from the center of the pivot 73 to the center of the rear insert 77. Therefore, according to the lever principle, the rear insert 77 can be strongly pressed against the front insert 59 even with a small pressing force of the first cylinder 91 as the first driving means. Therefore, the cross-sectional area of the first cylinder 91 can be designed to be small, and the apparatus can be downsized and compact.

Further, as shown in FIG. 6, a front guide roller 63 as a second guide roller is fixed to the lower portion of the guide main body 55 with a bolt 65 at the lower portion of the guide main body 55. Behind the front guide roller 63, a rear guide roller 83, which is a first guide roller, is provided so as to be movable back and forth (approaching and separating) with respect to the front guide roller 63 side.

[0028] The rear guide roller 83 is fixed to a second swing member 81 swingable around a pivot 73 provided in the guide body 55 via a bolt 85, and the second guide roller 83 is fixed to the second swing member 81. When the swing member 81 swings, it swings back and forth together. The front block portion 57 of the guide main body 55 is provided with a second cylinder 103 as second driving means and a piston 107 slidable in the second cylinder 103. The swinging member 81 is accommodated in a recess 69 formed in the guide body 55.

When pressure oil flows into the cylinder chamber 95 of the second cylinder 103 via the pipe lines 97, 95, the knob portion 109 formed at the tip of the piston 107 is moved to the second swing member 81. Swing counterclockwise in Fig. 6. Since the lower end of the second swinging member 81 swings and moves to the right in FIG. 5, the rear guide roller 83 is moved to the front guide roller. The rear guide roller 83 and the front guide roller 63 cooperate to guide the band saw blade 9.

On the other hand, when the pressure oil in the cylinder chamber 95 is allowed to flow out, a spring 89 provided by a fixing member 90 in the guide body 55 urges the swinging member 81 to move the swinging member. 81 swings clockwise in FIG. 6, and the rear guide roller 83 can be separated from the front guide roller 63. Thus, as shown in FIG. 8, when the workpiece W is retracted backward, the band saw blade 9 rotates to return to the state shown by the two-dot chain line in FIG. The cutting edge of 9 is also separated from the cutting material WA as shown in Fig. 8. Therefore, the cutting edge of the band saw blade 9 can be separated from both the workpiece W and the cutting material WA, and even if the band saw blade 9 is raised and returned, the blade will not spill.

[0031] The entire contents of Japanese Patent Application No. 2005-077674 (filed on Mar. 17, 2005) are incorporated herein by reference.

[0032] The present invention is not limited to the description of the embodiment of the invention described above, and can be implemented in various other modes by performing appropriate modifications and improvements.

Claims

The scope of the claims

[1] Band saw machine, including:

A body vise that clamps the workpiece to the rear side of the cutting position where the workpiece to be machined is cut by a band saw blade;

Feeding vise that can move back and forth to feed workpieces;

A saw blade housing having a drive wheel and a driven wheel wound with the band saw blade; a pair of saw blade guides for twisting the band saw blade in the saw blade housing and for guiding the band saw blade to travel;

A plurality of first and second inserts provided in a front-rear direction at a tip of the saw blade guide, wherein the first insert is provided movably in the front-rear direction; A first oscillating member to be moved, wherein the first insert is fixed to the oscillating member; and

First driving means for swinging the first swinging member, wherein the first insert is swung using the lever principle by the driving force of the first driving means. As a result, the first insert is moved closer to and away from the second insert to guide the band saw blade.

[2] In the band saw machine according to claim 1,

The range of the longitudinal movement of the first insert is a range in which the cutting edge of the moving band saw blade allows the cutting surface force of the workpiece to be separated.

[3] The band saw machine according to claim 2,

The distance from the contact point between the first drive means and the first swing member to the swing center of the first swing member is the first swing member from the swing center to the first swing member. It is larger than the distance to the center of the insert.

[4] The band saw machine according to claim 3 further includes:

A plurality of first guide rollers and second guide rollers provided in the front-rear direction at the tip of the saw blade guide, wherein a plurality of the first guide rollers are provided movably in the front-rear direction;

A second rocking member for rocking the first guide roller, the second rocking member The first guide roller is fixed; and

Second driving means for swinging the second swinging member, by swinging the first guide roller using the lever principle by the driving force of the second driving means; The band saw blade is guided by moving the first guide roller toward and away from the second guide roller.