CN111571248A - Tool holder with internal rigid retention means - Google Patents
Tool holder with internal rigid retention means Download PDFInfo
- Publication number
- CN111571248A CN111571248A CN201910124656.7A CN201910124656A CN111571248A CN 111571248 A CN111571248 A CN 111571248A CN 201910124656 A CN201910124656 A CN 201910124656A CN 111571248 A CN111571248 A CN 111571248A
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- CN
- China
- Prior art keywords
- tool
- tool holder
- sleeve
- mounting portion
- shank
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The present invention provides a tool holder with internal rigid holding means for use in a processing machine having a spindle, comprising: a shank having a tapered outer surface received in the spindle and a shank male connector end; a tool mounting portion including an axially extending tool mounting aperture capable of receiving and securing a tool holder, the tool mounting portion also having a mounting portion female connector end that mates with the shank male connector end; and at least one rigid retaining sleeve made of a highly rigid material, the rigid retaining sleeve having a sleeve female connector end and a sleeve male connector end, such that the shank, the rigid retaining sleeve and the tool mounting portion can be connected end to end in series.
Description
Technical Field
The present invention relates to a tool holder, and more particularly to a tool holder having an internal rigid retention means.
Background
At present, in high-precision metal processing, such as drilling, milling, reaming, boring, inner and outer diameter cutting or surface grinding, a Computer Numerical Control (CNC) processing machine is often used to process with various tools, such as a drill, a milling cutter, etc. The tools are all provided with a long handle structure, and are connected with a main shaft of a CNC (computer numerical control) machining machine table through a tool holder, and the main shaft can rotate at a high speed to drive the tools held by the tool holder to rotate at a high speed so as to machine a target workpiece.
Tool holders mounted on a machine tool table tend to vibrate during use. Such vibrations disturb the process and have a negative effect on the product accuracy. In practice, vibrations are always generated when the various parts of the machine work in contact with each other. As the machine wears more and more, its dynamic behavior changes. This means that new forms of vibrations are generated during different life cycles of the machine. Vibrations can lead to poor surface finish of the workpiece, which in turn can cause wear to the machine and to the tools, and in the worst case, irreparable damage.
Any oscillating movement between the tool holder and the workpiece during a metal cutting operation can result in undesirable cutting performance, such as poor workpiece surface finish and machined workpieces that are out of tolerance. In addition, such vibrations can cause damage to the tool holder or the tool. The vibration of the tool holder during machining is generally proportional to the length of the tool holder, and the problem of vibration of the tool holder and tool is exacerbated by the difficulty in maintaining sufficient rigidity of the tool holder due to the rigidity of the material of the tool holder in elongate tool holders of the type disclosed in U.S. patent nos. 1502528, 2716030 and 8821084.
Disclosure of Invention
It is an object of the present invention to provide a tool holder having at least one internal rigid retention means for increasing the rigidity of the tool holder, inhibiting vibration of the tool holder and the tool held thereby, and maintaining superior workpiece surface finish and machining precision.
It is a further object of the invention to provide a tool holder having an internal rigid retention means, particularly suitable for use in elongate tool holders of extended length or in combination-link tool holders.
To achieve the above objects, the present invention provides a tool holder with internal rigid retention means for use in a processing machine having a spindle, the tool holder comprising: a shank having a tapered outer surface received in the spindle and a shank male connector end; a tool mounting portion including an axially extending tool mounting aperture capable of receiving and retaining a tool and a portion of a tool holder, the tool mounting portion also having a mounting portion female connector end that mates with the shank male connector end; and at least one rigid holding sleeve made of high-rigidity material, wherein the rigid holding sleeve is provided with a sleeve female joint end matched with the handle male joint end and a sleeve male joint end matched with the erection part female joint end, and the handle, the rigid holding sleeve and the tool erection part can be connected in series end to end.
In a preferred embodiment of the present invention, the tool holder further comprises at least one extension sleeve module connected in series between the handle portion, the rigid retaining sleeve and the tool mounting portion.
In a preferred embodiment of the present invention, the extension sleeve module has a module female connector end matching the handle male connector end and a module male connector end matching the mounting portion female connector end, and the handle, the extension sleeve module, the rigid retention sleeve and the tool mounting portion can be connected in series end to end.
In a preferred embodiment of the present invention, the tool mounting portion is made of a highly rigid material.
In a preferred embodiment of the invention, the shank further comprises a flange having a generally annular shape disposed between the tapered outer surface and the male end of the shank, and the flange comprises a V-shaped groove extending around the circumference of the flange.
The tool holder with the internal connection type rigid holding device provided by the invention is provided with at least one internal connection type rigid holding device so as to improve the rigidity of the tool holder, inhibit the tool holder and a tool clamped by the tool holder from generating vibration phenomenon and maintain better surface finish and processing precision of a workpiece.
Drawings
FIG. 1 is a cross-sectional view of a tool holder having an internal rigid retention device in accordance with the present invention;
fig. 2 is similar to fig. 1, except that an extension sleeve module is added.
Detailed Description
Referring to fig. 1, the present invention provides a tool holder having internal rigid retention means for use in a machine tool having a spindle (not shown), the tool holder comprising: a shank 10 having a tapered outer surface 11 received in the spindle and a shank male end 12; a tool mounting portion 20, optionally made of a rigid material such as tungsten carbide (tungsten carbide), including an axially extending tool mounting aperture 21, the tool mounting aperture 21 being capable of receiving and retaining a tool and a portion of a tool holder 23, the tool mounting portion 20 also having a mounting female connector end 22 that mates with the shank male connector end 12; and at least one rigid retaining sleeve 30 made of a high-rigidity material such as tungsten carbide, the rigid retaining sleeve 30 having a sleeve female joint end 31 mating with the shank male joint end 12 and a sleeve male joint end 32 mating with the mounting female joint end 22, and the shank 10, the rigid retaining sleeve 30 and the tool mounting portion 20 being capable of being connected end to end in series with one another.
The shank 10 further comprises a flange 13, the flange 13 being substantially annular and disposed between the tapered outer surface 11 and the shank male end 13, and the flange 13 comprising a V-shaped groove 14 extending around the circumference of the flange 13 to allow the tool holder to be used in an automated tool changing system for the machine tool.
The tool mounting portion 20 may be a generally cylindrical member with the tool mounting aperture 21 threadably engaging the tool holder 23, although the threaded engagement is not exclusive and other means of securing a tool may be used as will be appreciated by those skilled in the art.
Referring to fig. 2, at least one extension sleeve module 40 is further disposed between the handle 10 and the tool mounting portion 20, the extension sleeve module 40 has a module female connector end 41 matching the handle male connector end 12 and a module male connector end 42 matching the mounting portion female connector end 22, and the handle 10, the extension sleeve module 40, the rigid retaining sleeve 30 and the tool mounting portion 20 can be connected in series end to end.
The user can select the number of rigid retention sleeves 30 and extension sleeve modules 40 to be used to adjust the desired length of the tool holder, as desired in the processing environment.
The tool holder with the internal connection type rigid holding device provided by the invention is provided with at least one internal connection type rigid holding device so as to improve the rigidity of the tool holder, inhibit the tool holder and a tool clamped by the tool holder from generating vibration phenomenon and maintain better surface finish and processing precision of a workpiece.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A tool holder having internal rigid retention means for use in a machine tool having a spindle, the tool holder comprising:
a shank having a tapered outer surface received in the spindle and a shank male connector end;
a tool mounting portion including an axially extending tool mounting aperture capable of receiving and retaining a tool and a portion of a tool holder, the tool mounting portion also having a mounting portion female connector end that mates with the shank male connector end; and
the rigid holding sleeve is provided with a sleeve female joint end part matched with the handle part male joint end part and a sleeve male joint end part matched with the erection part female joint end part, and the handle part, the rigid holding sleeve and the tool erection part can be connected in series end to end.
2. The tool holder of claim 1 having an internal rigid retention means, wherein: also included is at least one extension sleeve module connected in series between the handle portion, the rigid retention sleeve, and the tool mounting portion.
3. A tool holder having an inscribed rigid retention device according to claim 2, characterized in that: the extension sleeve module is provided with a module female joint end part matched with the handle part male joint end part and a module male joint end part matched with the erection part female joint end part, and the handle part, the extension sleeve module, the rigidity maintaining sleeve and the tool erection part can be mutually connected in series end to end.
4. The tool holder of claim 1 having an internal rigid retention means, wherein: the tool mounting portion is made of a highly rigid material.
5. The tool holder of claim 1 having an internal rigid retention means, wherein: the shank further includes a flange having a generally annular shape disposed between the tapered outer surface and the shank male end, and the flange includes a V-shaped groove extending around a circumference of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124656.7A CN111571248A (en) | 2019-02-19 | 2019-02-19 | Tool holder with internal rigid retention means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124656.7A CN111571248A (en) | 2019-02-19 | 2019-02-19 | Tool holder with internal rigid retention means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111571248A true CN111571248A (en) | 2020-08-25 |
Family
ID=72120685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910124656.7A Pending CN111571248A (en) | 2019-02-19 | 2019-02-19 | Tool holder with internal rigid retention means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111571248A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069763U (en) * | 1990-07-16 | 1991-01-23 | 桐庐轻工机械一厂 | Special fixture adapted for cutting end face of box wrench |
| CN101327525A (en) * | 2007-06-20 | 2008-12-24 | 翌润企业股份有限公司 | Module group connected with tool holder |
| CN201214152Y (en) * | 2008-06-20 | 2009-04-01 | 聂福全 | Ladder type top shockproof boring cutter pole |
| US8517644B2 (en) * | 2007-06-07 | 2013-08-27 | Allied Machine & Engineering Corporation | Adjustable indexable drill and modular system and holder |
| JP3193771U (en) * | 2014-07-04 | 2014-10-23 | 心源工業股▲ふん▼有限公司 | Modular cutter holder and blade mechanism |
| CN204381451U (en) * | 2014-12-19 | 2015-06-10 | 天津中德职业技术学院 | The large overhanging boring tool device of high accuracy eccentricity fine adjustment |
| CN105834769A (en) * | 2015-01-16 | 2016-08-10 | 鼎朋企业股份有限公司 | Guide-type collet |
| CN105834492A (en) * | 2015-01-16 | 2016-08-10 | 鼎朋企业股份有限公司 | Machining cutter with cutting fluid guide groove on surface for machine |
-
2019
- 2019-02-19 CN CN201910124656.7A patent/CN111571248A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069763U (en) * | 1990-07-16 | 1991-01-23 | 桐庐轻工机械一厂 | Special fixture adapted for cutting end face of box wrench |
| US8517644B2 (en) * | 2007-06-07 | 2013-08-27 | Allied Machine & Engineering Corporation | Adjustable indexable drill and modular system and holder |
| CN101327525A (en) * | 2007-06-20 | 2008-12-24 | 翌润企业股份有限公司 | Module group connected with tool holder |
| CN201214152Y (en) * | 2008-06-20 | 2009-04-01 | 聂福全 | Ladder type top shockproof boring cutter pole |
| JP3193771U (en) * | 2014-07-04 | 2014-10-23 | 心源工業股▲ふん▼有限公司 | Modular cutter holder and blade mechanism |
| CN204381451U (en) * | 2014-12-19 | 2015-06-10 | 天津中德职业技术学院 | The large overhanging boring tool device of high accuracy eccentricity fine adjustment |
| CN105834769A (en) * | 2015-01-16 | 2016-08-10 | 鼎朋企业股份有限公司 | Guide-type collet |
| CN105834492A (en) * | 2015-01-16 | 2016-08-10 | 鼎朋企业股份有限公司 | Machining cutter with cutting fluid guide groove on surface for machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200825 |
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| WD01 | Invention patent application deemed withdrawn after publication |