Horizontal band saw machine

Patent metadata

Field	Value
Publication number	US-9878381-B2
Application number	US-201414904815-A
Country	US
Kind code	B2
Filing date	Jul 2, 2014
Priority date	Aug 9, 2013
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A horizontal band saw machine includes a pair of jaws, a pair of saw blade wheels, a band saw blade looped over the saw blade wheels, a pair of saw blade guides, a contact guide attached to the other of the pair of jaws, a coupling bracket connected to the other of the pair of saw blade guides to locate a distal end thereof below the other of the pair of saw blade wheels, and a follower member provided at the distal end of the coupling bracket. The contact guide and the coupling bracket are configured to move one of the pair of saw blade guides until the follower member contacts with the contact guide when the band saw blade is fed circularly in a state where the band saw blade is clamped by the one of the pair of saw blade guides.

First claim

The invention claimed is:

1. A horizontal band saw machine that cuts a workpiece stopped on a feed direction while feeding an endless band saw blade circularly, the machine comprising:
a base;
a vise mechanism that is provided on a downstream side of a cutting position on the base, and includes a pair of jaws that faces each other along a width direction perpendicular to the feed direction to clamp the workpiece, a first one of the pair of jaws being provided on one side with respect to the cutting position along the width direction, and a second one of the pair of jaws being provided movably on another side along the width direction;
a cutting head that is provided on the base vertically-movably, and extends in the width direction;
a pair of saw blade wheels that are provided rotatably on the cutting head, and distanced from each other along the width direction;
the band saw blade that is looped over the pair of saw blade wheels;
a saw blade guide mechanism having a pair of saw blade guides that are suspended from the cutting head between the pair of saw blade wheels, saw blade guide inserts being provided at respective lower ends of the pair of saw blade guides, a first one of the pair of saw blade guides being provided on the one side, a second one of the pair of saw blade guides being provided on the other side movably in the width direction, and the band saw blade being twisted between the pair of saw blade guides to orient saw teeth thereof downward;
a contact guide that is attached to the second one of the pair of jaws, and extends vertically;
a coupling bracket having a base end connected to the second one of the pair of saw blade guides, and that is extended in the width direction to locate a distal end thereof below the second one of the pair of saw blade wheels; and
a follower member that is provided at the distal end of the coupling bracket, and slidably contacts with the contact guide, the follower member being positioned outside of an outer periphery of the band saw blade and vertically beneath the band saw blade with respect to a direction extending upwardly from the base towards the cutting head, wherein
the second one of the pair of saw blade guides is moved toward the one side in the width direction until the follower member contacts with the contact guide by feeding the band saw blade circularly in a state where the band saw blade is clamped by the saw blade guide insert of the second one of the pair of saw blade guides, wherein
the coupling bracket extends in the width direction from the second one of the pair of saw blade guides to the contact guide when the follower engages the contact guide.

2. The horizontal band saw machine according to claim 1 , wherein
the contact guide and the coupling bracket are configured to move the second one of the pair of saw blade guides while following the second one of the pair of jaws when the second of the pair of jaws is moved further toward the other side in a state where the follower member contacts with the contact guide.

3. The horizontal band saw machine according to claim 1 , further comprising:
a coupling bar having a base end connected to an outer side of the second one of the pair of jaws, and is extended in the width direction to locate a distal end thereof below the second one of the pair of saw blade wheels, and
the contact guide is provided at the distal end of the coupling bar.

4. A horizontal band saw machine that cuts a workpiece stopped on a feed direction while feeding an endless band saw blade circularly, the machine comprising:
a base;
a vise mechanism that is provided on a downstream side of a cutting position on the base, and includes a pair of jaws that faces each other along a width direction perpendicular to the feed direction to clamp the workpiece, a first one of the pair of jaws being provided on one side with respect to the cutting position along the width direction, and a second one of the pair of jaws being provided movably on another side along the width direction;
a cutting head that is provided on the base vertically-movably, and extends in the width direction;
a pair of saw blade wheels that are provided rotatably on the cutting head, and distanced from each other along the width direction;
the band saw blade that is looped over the pair of saw blade wheels;
a saw blade guide mechanism having a pair of saw blade guides that are suspended from the cutting head between the pair of saw blade wheels, saw blade guide inserts being provided at respective lower ends of the pair of saw blade guides, a first one of the pair of saw blade guides being provided on the one side, a second one of the saw blade guides being provided on the other side movably in the width direction, and the band saw blade being twisted between the pair of saw blade guides to orient saw teeth thereof downward;
a contact guide that is attached to the second one of the pair of jaws, and extends vertically, a guide groove extending vertically being formed thereon;
a coupling bracket having a base end connected to the second one of the pair of saw blade guides, and that is extended in the width direction to locate a distal end thereof below the second one of the pair of saw blade wheels; and
a follower member that is provided at the distal end of the coupling bracket, and slidably contacts with the contact guide within the guide groove, the follower member being positioned outside of an outer periphery of the band saw blade and vertically beneath the band saw blade with respect to a direction extending upwardly from the base towards the cutting head, wherein
the contact guide and the coupling bracket are configured to move the second one of the pair of saw blade guides in the width direction while following the second one of the pair of jaws when the second one of the pair of jaws is moved in the width direction, wherein
the coupling bracket extends in the width direction from the second one of the pair of saw blade guides to the contact guide when the follower engages the contact guide.

5. The horizontal band saw machine according to claim 4 , further comprising:
a coupling bar having a base end connected to an outer side of the second one of the pair of jaws, and is extended in the width direction to locate a distal end thereof below the second one of the pair of saw blade wheels, and
the contact guide is provided at the distal end of the coupling bar.

Assignees

• Amada Holdings Co Ltd
• Amada Machine Tools Co Ltd

Inventors

• Sakai Norihisa
• Seto Akio

Classifications

• B23D55/04

  of devices for feeding or clamping work · CPC title

• B23D55/082

  Devices for guiding strap saw blades · CPC title

• B23D55/086 Primary

  with means for automatically adjusting the distance between the guides · CPC title

• B23D53/04

  with the wheels carrying the strap mounted shiftably or swingingly {, i.e. during sawing}, other than merely for adjustment · CPC title