Dies for threaded rod cutting machine

Patent metadata

Field	Value
Publication number	US-2016101477-A1
Application number	US-201414511897-A
Country	US
Kind code	A1
Filing date	Oct 10, 2014
Priority date	Oct 10, 2014
Publication date	Apr 14, 2016
Grant date	—

Abstract

A pair of dies may be coupled to a machine for cutting threaded rods. The machine has a pair of arms each configured to hold one die. At least one arm is moveable relative to the other arm to cause the dies to shear a threaded rod. Each die includes a body having a front face, a rear face, a side face extending between the front face and the rear face, a cutting edge at a junction between the side face and the front face, and a threaded arcuate recess in the side face, configured to receive a threaded rod to be cut. The dies may be substantially identical so the dies can be reversibly attached in either of the arms. The threads of the arcuate recesses may form a continuous helical path about a threaded rod when the dies are closed around the threaded rod.

First claim

What is claimed is:

1 . A pair of dies configured to be coupled to a machine for cutting threaded rods, the machine having a pair of arms each configured to hold one of the dies, at least one of the arms being moveable relative to the other arm to cause the dies to shear a threaded rod, each of the dies comprising:
a body having a front face, a rear face, a side face extending between the front face and the rear face, a cutting edge at a junction between the side face and the front face, and a threaded arcuate recess defined in the side face and configured to receive a portion of a threaded rod to be cut, wherein the dies are substantially identical so the dies can be reversibly attached in either of the arms.

2 . The dies of claim 1 , wherein the arcuate recess in each die includes a thread with a starting point, the starting point of the thread of each die being configured such that the dies form a continuous helical path about a threaded rod to be cut when the dies are closed around the threaded rod.

3 . The dies of claim 2 , wherein the starting point for each die is a theoretical starting point.

4 . The dies of claim 2 , wherein the starting point for each die is an actual starting point.

5 . The dies of claim 4 , wherein the starting point for each die is at a junction between the cutting edge and the arcuate recess.

6 . The dies of claim 2 , wherein the starting point for each thread of each die substantially coincides with a line that bisects a threaded rod to be cut when the dies are closed around the threaded rod.

7 . The dies of claim 2 , wherein the starting points of the dies substantially coincide with each other when the dies are closed around a threaded rod to be cut.

8 . The dies of claim 1 , wherein each of the dies defines a fastener receiver configured to be coupled to a fastener for coupling the die to one of the arms, the fastener receiver being configured so that the fastener may only be coupled to the fastener receiver at the rear face of the die.

9 . The dies of claim 8 , wherein the fastener receiver for each die includes a through bore extending from the rear face to the front face, the bore being threaded with a thread that starts at the rear face but does not extend to the front face so that a threaded fastener may only be inserted into the bore from the rear face.

10 . The dies of claim 1 , wherein each of the dies has a polyhedral shape.

11 . The dies of claim 1 , wherein the side face of each die comprises a plurality of side faces extending between the front face and the back face, each of the side faces defining a threaded arcuate recess, at least two of the threaded arcuate recesses of each die having different sizes from each other for receiving different sizes of threaded rods.

12 . A pair of dies configured to be coupled to a machine for cutting threaded rods, the machine having a pair of arms each configured to hold one of the dies, at least one of the arms being moveable relative to the other arm to cause the dies to shear a threaded rod, each of the dies comprising:
a body having a front face, a rear face, a side face extending between the front face and the rear face, a cutting edge at a junction between the side face and the front face, and a threaded arcuate recess defined in the side face and configured to receive a portion of a threaded rod to be cut, wherein each threaded recess includes a thread having a starting point positioned relative to a circumference of the recess such that the dies are reversibly attached to either of the arms with the threads of the dies forming a continuous helical path about a threaded rod to be cut when the dies are closed around the threaded rod.

13 . The dies of claim 12 , wherein the starting point of the thread for each die coincides with a line that bisects a threaded rod to be cut when the dies are closed around the threaded rod.

14 . The dies of claim 12 , wherein the starting point for each die is a theoretical starting point.

15 . The dies of claim 12 , wherein the starting point for each die is an actual starting point.

16 . The dies of claim 15 , wherein the starting point for each die is at a junction between the cutting edge and the arcuate recess.

17 . The dies of claim 12 , wherein each die includes a through bore extending from the rear face to the front face, the bore being threaded with a thread that starts at the rear face but does not extend to the front face so that a threaded fastener may only be inserted into the bore from the rear face.

18 . The dies of claim 1 , wherein the side face of each die comprises a plurality of side faces extending between the front face and the back face, each of the side faces defining a threaded arcuate recess, at least two of the threaded arcuate recesses of each die having different sizes from each other for receiving different sizes of threaded rods.

19 . A pair of dies configured to be coupled to a machine for cutting threaded rods, the machine having a pair of arms each configured to hold one of the dies, at least one of the arms being moveable relative to the other arm to cause dies held by the arms to shear a threaded rod, each of the dies comprising:
a body having a front face, a rear face, and a plurality of side faces extending between the front face and the rear face, a cutting edge at a junction between each of the side faces and the front face, a threaded arcuate recess defined in each of the side faces and configured to receive a portion of a threaded rod to be cut, at least two of the threaded arcuate recesses have different sizes from each other for receiving different sizes of threaded rods, wherein the dies are attachable to the arms in different rotational positions so that the at least two different sized threaded arcuate recesses of each die can be positioned to face each other and receive different sizes of threaded rods.

20 . The dies of claim 19 , wherein the dies are reversibly attachable to either the first arm or the second arm.

Assignees

• Black & Decker Inc

Inventors

• Parks James R
• Heavel Richard J

Classifications

• B23D35/001 Primary

  cutting members · CPC title

• B23D21/00

  Machines or devices for shearing or cutting tubes (as additional equipment for deep-drawing presses B21D24/16) · CPC title

• B23D29/002

  for cutting wire or the like · CPC title

• B23D17/04

  actuated by a rotary shaft · CPC title