Hydraulic power tool

Patent metadata

Field	Value
Publication number	US-10093012-B2
Application number	US-201715711002-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Sep 23, 2016
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A working head for a hydraulic power tool including a head frame and a first moveable die head configured to move along the working head frame. The first moveable die head configured to receive a first moveable die comprising a first body length. A second die head is adapted to receive a second die comprising a second body length. The first body length of the moveable die is different from the second body length of the stationary die.

First claim

We claim:

1. A working head for a hydraulic power tool, the working head comprising:
a head frame;
a first moveable die head configured to move along the head frame, the first moveable die head receiving a first moveable die comprising a first body length; and
a second die head receiving a second die comprising a second body length,
wherein the first body length of the first moveable die is different from the second body length of the second die,
wherein the second die and the first moveable die define a working distance between a first die face of the first moveable die and a second die face of the second die when a ram assembly of the hydraulic power tool is in a retracted position, and
wherein at least one of the first body length or the second body length is greater than the working distance.

2. The working head of claim 1 ,
wherein the first body length of the first moveable die is greater than the second body length of the second die.

3. The working head of claim 1 ,
wherein the second body length of the second die is greater than the first body length of the first moveable die.

4. The working head of claim 1 ,
wherein the first moveable die head is adapted to removably receive the first moveable die.

5. The working head of claim 1 ,
wherein the second die head is adapted to removably contain the second die.

6. The working head of claim 1 ,
wherein the first moveable die head is configured to receive a second moveable die comprising a third body length.

7. The working head of claim 6 ,
wherein the third body length of the second moveable die is greater than the first body length of the first moveable die.

8. The working head of claim 1 ,
wherein the head frame of the working head is operably coupled to the ram assembly of a hydraulic tool.

9. The working head of claim 1 ,
wherein the working distance comprises a crimping distance.

10. The working head of claim 1 ,
wherein the working distance comprises a cutting distance.

11. The working head of claim 1 , wherein the first moveable die head comprises:
a main body, the main body defines a curved die holder for receiving the first moveable die,
a first main body surface, and
a second main body surface,
wherein the first main body surface and the second main body surface extend from a proximal end of the first moveable die head towards a distal end of the first moveable die head.

12. The working head of claim 11 , wherein the first moveable die head further comprises:
a first end face that extends vertically along the main body of the first moveable die head, and
a second end face that extends vertically along the main body of the first moveable die head.

13. The working head of claim 11 , wherein the first moveable die head comprises:
a first edge comprising a first lip,
a second edge comprising a second lip,
wherein the first lip of the first moveable die head is configured to receive a first end of the first moveable die, and
wherein the first lip of the first moveable die is configured to receive a second end of the first moveable die.

14. The working head of claim 1 ,
wherein the second die head comprises a stationary die head.

15. The working head of claim 1 ,
wherein the working head comprises a crimping head,
wherein the first moveable die comprises a moveable crimp die, and
wherein the second die comprises a stationary crimp die.

16. The working head of claim 15 ,
wherein the moveable crimp die defines a first crimp groove.

17. The working head of claim 15 ,
wherein the moveable crimp die comprises:
a first horizontal surface comprising a distal end,
a second horizontal surface comprising a distal end, and
a vertical die plate comprising a distal end,

wherein the second horizontal surface is parallel to the first horizontal surface, and
wherein the distal end of the vertical die plate is perpendicular to the first horizontal surface and the second horizontal surface.

18. The working head of claim 15 , wherein
the stationary crimp die defines a second crimp groove.

19. The working head of claim 1 ,
wherein the working head comprises a cutting head,
wherein the first moveable die comprises a first cutting die, and
the second die comprises a stationary cutting die.

20. The working head of claim 1 , further comprising:
a first alignment feature extending along a portion of the first moveable die;
a second alignment feature extending along a portion of the first moveable die head; and
a third alignment feature extending along a portion of the second die,
wherein the first alignment feature, the second alignment feature, and the third alignment feature (i) are aligned with each other and (ii) extend in a direction that is parallel to a direction in which the first moveable die head is configured to move along the head frame.

21. A working head for a hydraulic power tool, the working head comprising:
a head frame;
a first moveable die head configured to move along the head frame;
a first moveable die retained in the first moveable die head by an engagement between a first ledge of the first moveable die head and a first notch of the first moveable die, wherein the first moveable die has a first body length extending between the first notch and a first die face;
a second die head opposite the first moveable die head on the head frame;
a second die retained in the second die head by an engagement between a second ledge of the second die head and a second notch of the second die, wherein the second die has a second body length extending from the second notch to a second die face,
wherein the first die face opposes the second die face, and
wherein the first body length of the first moveable die is different than the second body length of the second die.

22. A crimping head for a hydraulic power tool, the crimping head comprising:
a head frame;
a first moveable die head configured to move along the head frame, the first moveable die head receiving a moveable crimp die comprising a first body length, the moveable crimp die defining a first crimp groove; and
a second die head receiving a stationary crimp die comprising a second body length, the stationary crimp die defining a second crimp groove on a second die face,
wherein the first body length of the moveable crimp die is different from the second body length of the stationary crimp die, and
wherein a size of the first crimp groove is the same as a size of the second crimp groove.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Koski Jonathan
• Marks Troy
• Norquist Eric
• Ballard James
• Kanack Kris

Classifications

• B25F5/02

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• B21D37/10

  Die sets; Pillar guides · CPC title

• B25B7/126

  with fluid drive · CPC title

• B25F5/005 Primary

  Hydraulic driving means · CPC title

• B25F3/00

  Associations of tools for different working operations with one portable power-drive means; Adapters therefor · CPC title