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Tool holder assembly

a tool holder and assembly technology, applied in the field of tool holder assembly, can solve the problems of inconvenient axial positioning of the chuck, inconvenient adjustment of the chuck, and inability to address the desirability of the gap of the drill chuck,

Inactive Publication Date: 2006-02-09
FORD MOTOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] A seal may be disposed between the end portion and the tool receiving portion for inhibiting fluid leakage.
[0011] According to another aspect of the present invention, a tool holder assembly is provided. The tool holder assembly includes a cutting tool, a tool holder, an adapter, and a spring. The cutting tool includes a main portion, an end portion, and a fluid passage. The main portion has a first diameter. The end portion has a second diameter. The fluid passage is disposed in the main and end portions. The tool holder is configured to rotate about an axis of rotation and includes a conduit and a counterbore. The counterbore is adapted to receive the cutting tool and has a bottom surface. The adapter includes a tool receiving portion, a body portion, and an internal fluid passage. The tool receiving portion is configured to receive the end portion. The body portion is disposed proximate the tool receiving portion and is adapted to engage the conduit. The internal fluid passage is defined by the tool receiving and body portions and is adapted to provide a fluid from the conduit to the fluid passage. The spring is configured to bias the adapter against the cutting tool to inhibit fluid leakage.

Problems solved by technology

Such drill chucks did not address the desirability of gap-free sealing between a cutting tool and an adapter to inhibit fluid leakage and improve tool life.
Moreover, such drill chucks were not configured for use with a minimum quantity lubrication (MQL) machining system in which very limited amounts of lubricant are provided at high pressure to the cutting surfaces of the cutting tool to sustain the machining process.
In addition, such chucks did not incorporate adjustment screws to facilitate the axial positioning of the cutting tool.

Method used

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Examples

Experimental program
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second embodiment

[0032] Referring to FIG. 2, the tool holder assembly 100 is shown. In this embodiment, the tool holder assembly 100 includes a cutting tool 112 and a tool holder 114 having an integral adapter portion 116.

[0033] The cutting tool 112 includes a main portion 120, one or more cutting surfaces 124, one or more fluid passages 126, and may be rotatable about an axis of rotation 128 as previously described.

[0034] The tool holder 114 includes a counterbore 130 and a conduit 132. The counterbore 130 has a bottom surface 134. The conduit 132 may have any suitable configuration and may include a narrow portion 136 and / or a pipe 138 coupled to the tool holder 114 with a fastener 140 as previously described.

[0035] The adapter portion 116 includes an internal fluid passage 154. In the embodiment shown in FIG. 2, the internal fluid passage 154 also extends partially into the main portion 120. The adapter portion 116 may also have a first section 156 disposed proximate the pipe 138 and a second s...

third embodiment

[0037] Referring to FIG. 3, the tool holder assembly 200 is shown. Similar to FIG. 1, the tool holder assembly 200 includes a cutting tool 212, a tool holder 214, and an adapter 216.

[0038] The cutting tool 212 may include a main portion 220, one or more cutting surfaces 224, a plurality of fluid passages 226, and may be rotatable about an axis of rotation 228 as previously described.

[0039] The tool holder 214 includes a counterbore 230 and a conduit 232. The counterbore 230 has a bottom surface 234. The conduit 232 may have any suitable configuration and may include a narrow portion 236 and / or a pipe 238 coupled to the tool holder 214 with a fastener 240 as previously described.

[0040] The adapter 216 may include a body portion 250 and a tool receiving portion 252, as previously described. The body portion 250 may also include a first internal fluid passage 254, a first section 256 disposed proximate the pipe 238 and a second section 258 disposed proximate the narrow portion 236.

[...

fourth embodiment

[0042] Referring to FIG. 4, the tool holder assembly 300 is shown. In this embodiment, the tool holder assembly 300 includes a cutting tool 312, a tool holder 314, an adapter 316, and a spring 318.

[0043] The cutting tool 312 may include a main portion 320, an end portion 322, one or more cutting surfaces 324, one or more fluid passages 326, and may be rotatable about an axis of rotation 328 as previously described.

[0044] The tool holder 314 includes a counterbore 330 and a conduit 332. The counterbore 330 has a bottom surface 334. The conduit 332 may include a narrow portion 336 and / or a pipe 338 coupled to the tool holder 314 with a fastener 340.

[0045] The adapter 316 may include a body portion 350, a tool receiving portion 352, and an internal fluid passage 354, a first section 356, a second section 358, a recess 360, and a chamfer 362 as previously described.

[0046] The spring 318 is adapted to engage the tool receiving portion 352 and the bottom surface 340 to bias the adapter...

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Abstract

A tool holder assembly including a cutting tool, a tool holder, and an adapter. The cutting tool includes a fluid passage and an end portion. The tool holder includes a conduit and a counterbore adapted to receive the cutting tool. The adapter includes a tool receiving portion configured to receive the end portion and an internal fluid passage adapted to provide a fluid from the conduit to the fluid passage.

Description

BACKGROUND OF INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a tool holder assembly, and more particularly to a tool holder assembly incorporating an adapter configured to deliver a fluid to a cutting tool. [0003] 2. Background Art [0004] Previously, drill chucks incorporated a fluid supply hole adapted to receive a straight shank of an oil-through-drill, as described in U.S. Pat. No. 5,649,714. In that patent, a seal block was positioned in the fluid supply hole to regulate fluid flow into a fluid channel of the oil-through-drill and into a gap portion between the fluid supply hole and the straight shank portion. Such drill chucks did not address the desirability of gap-free sealing between a cutting tool and an adapter to inhibit fluid leakage and improve tool life. Moreover, such drill chucks were not configured for use with a minimum quantity lubrication (MQL) machining system in which very limited amounts of lubricant are provided at high pre...

Claims

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Application Information

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IPC IPC(8): B23C1/00B23B31/02B23B51/06B23B51/12
CPCB23B31/1179B23B51/06B23B2250/12B23B2260/126Y10T279/17111Y10T408/44Y10T408/45Y10T409/304032Y10T409/30952B23B2260/136B23B51/12B23Q11/10
Inventor STOLL, ALEXANDEREXNER, EDNORDSTROM, GEORGE
Owner FORD MOTOR CO