CN106799614A - A kind of device coupled in high precision between cutting tool handle and machine tool chief axis - Google Patents
A kind of device coupled in high precision between cutting tool handle and machine tool chief axis Download PDFInfo
- Publication number
- CN106799614A CN106799614A CN201710164516.3A CN201710164516A CN106799614A CN 106799614 A CN106799614 A CN 106799614A CN 201710164516 A CN201710164516 A CN 201710164516A CN 106799614 A CN106799614 A CN 106799614A
- Authority
- CN
- China
- Prior art keywords
- shank
- tool
- chief axis
- machine tool
- elastic claw
- Prior art date
- 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.)
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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
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/15513—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling the tool being taken from a storage device and transferred to a tool holder by means of transfer devices
Abstract
The invention discloses the device coupled in high precision between a kind of cutting tool handle and machine tool chief axis, it is related to cutting tool to be installed and articulation issues on machine tool chief axis, the joint stiffness of the manufacturing process system being made up of machine tool and cutting tool can be improved, machining accuracy and surface quality are improved, extends cutting tool service life.The device is by structure compositions such as pull bar, elastic claw, cylindrical pin with external thread, the shank of tools.Upward pulling force is applied to pull bar, increase the cylindrical column diameter of elastic claw, the outer conical surface diameter of the shank of tool is caused to increase, so that the outer conical surface of the shank of tool is fitted close with machine tool chief axis inner circle taper hole, and reduce the distance between the middle step surface in shank of tool outside and machine tool chief axis lower surface, until being fitted close between them, it is ensured that the stability that cutting tool is installed on machine tool chief axis.The device performance reliability, simple structure is easy to use.
Description
Technical field：The present invention relates in mechanical part processing, cutting tool handle is pacified on the main shaft of machine tool
Dress with couple in terms of problem, the joint stiffness of the manufacturing process system being made up of machine tool and cutting tool can be improved, guarantor
Card machining accuracy, it is ensured that the quality and equipment of part to be processed extend the service life of cutting tool using safety.
Background technology：Process part on the machine tools such as milling machine, the cutting tool with handle structure long must and equipment
Main shaft firmly and accurate connection, the joint stiffness of manufacturing process system can be effectively ensured, improve the dimensional accuracy and table of part
Face quality, it is ensured that production safety.
The content of the invention：The present invention seeks to：Design the dress coupled in high precision between a kind of cutting tool handle and machine tool chief axis
Put, abbreviation coupling arrangement, similarly hereinafter.Coupling arrangement is arranged in machine tool chief axis conical bore.Coupling arrangement include pull bar, elastic claw,
The structure such as cylindrical pin with external thread and the shank of tool.They cooperate with couple, form a whole, it is ensured that the axis of machine tool chief axis with
The axis of the shank of tool overlaps.Shank of tool outer conical surface is placed in the inner circle taper hole of machine tool chief axis lower end, the external cylindrical surface of elastic claw
It is placed in the interior cylindrical hole of the shank of tool, the inner circle taper hole of elastic claw is identical with the outer conical surface taper of pull bar, pull bar passes through bullet
The inner circle taper hole and the elongated hole of machine tool chief axis of property pawl, cylindrical pin with external thread small end external screw thread and pull bar internal thread are connected, threaded circular
The big end external screw thread of pin and shank of tool internal thread are connected.
When coupling arrangement is installed, upward pulling force is applied to pull bar, the outer conical surface of pull bar lower end has what is moved up to become
Gesture, elastic claw prevents pull bar from moving up by the frictional resistance of inner circle taper hole, because elastic claw wall thickness is small and be with elastic material
Material is made, and elasticity is higher, is easily deformed, and causes the female cone bore dia of elastic claw to increase, and promote the outside cylinder of elastic claw straight
Footpath increases；Because shank of tool wall thickness is small, elasticity is higher, is easily deformed, and the cylindrical column diameter increase of elastic claw forces the shank of tool
Interior cylinder bore diameter increase, as a result increases the outer conical surface diameter of the shank of tool, so that the outer conical surface and lathe of the shank of tool
Main shaft lower end inner circle taper hole coordinates even closer, and makes between the middle step surface in shank of tool outside and machine tool chief axis lower surface
Constantly reduce apart from t, until t=0, is fitted close between them, reach the purpose for improving manufacturing process system rigidity, it is ensured that plus
Working medium amount and safety.
Mentality of designing of the present invention is：The upward pulling force of pull bar increases elastic claw diameter, so as to force the diameter of the shank of tool
Increase, the outer conical surface and machine tool chief axis lower end inner circle taper hole for causing the shank of tool is fitted close, and makes the platform in the middle of shank of tool outside
The distance between terrace and main shaft lower surface t constantly reduces, and coupling arrangement is almost combined into one with machine tool chief axis, improves
Joint stiffness between them, it is ensured that machining accuracy.
Primary structure of the present invention：It is made up of the shank of tool, elastic claw, pull bar and cylindrical pin with external thread.Elastic claw is arranged on cutter
In the cylindrical hole of handle, pull bar passes through the inner circle taper hole of elastic claw, and the outer conical surface of pull bar to match with the inner circle taper hole of elastic claw
Close, cylindrical pin with external thread is coupled pull bar and handle of a knife by two ends screw thread.Shank of tool outer conical surface is installed to machine tool chief axis lower end
In inner circle taper hole.Pull bar profile is made up of external cylindrical surface and outer conical surface, outer cone end face one internal thread hole of band, and elastic claw is by outer
The face of cylinder and inner circle taper hole are constituted, and are made of elastomeric material.Closely-pitched external screw thread of the cylindrical pin with external thread two ends with different-diameter.
Shank of tool one end is made up of outer conical surface and interior cylindrical hole, the taper of outer conical surface and the taper of machine tool chief axis lower end inner circle taper hole
It is identical.The taper of pull bar outer conical surface is identical with the taper of the inner circle taper hole of elastic claw.The external cylindrical surface and the shank of tool of elastic claw
Interior cylindrical hole between be gap coordinate.
Brief description of the drawings：Accompanying drawing 1 is the structural representation of the present invention.In figure：1 is machine tool chief axis, and 2 is pull bar, and 3 is elasticity
Pawl, 4 is cylindrical pin with external thread, and 5 is the shank of tool, and t is the distance between step surface and main shaft lower surface in the middle of shank of tool outside.
Specific embodiment：Cylindrical pin with external thread (4) end greatly is threaded into the screwed hole of the shank of tool (5), by elastic claw
(3) it is enclosed within the outer conical surface of pull bar (2), and ensures that pull bar (2) outer conical surface is engaged with elastic claw (3) inner circle taper hole, will
Elastic claw (3) external cylindrical surface is put into the cylindrical hole of the shank of tool (5), and ensures that cylindrical pin with external thread (4) small end is threaded into pull bar
(2) in screwed hole, the connection that such pull bar (2), elastic claw (3), cylindrical pin with external thread (4) and the shank of tool (5) form a whole
In device, then the elongated hole that pull bar (2) is penetrated into main shaft from machine tool chief axis (1) lower end, and ensure the shank of tool (5) outer conical surface and machine
Bed main shaft (1) inner circle taper hole is engaged.Upward tensile ties (2), it is ensured that whole coupling arrangement is one with machine tool chief axis (1) connection
Body, upward pulling force is bigger, and coupling arrangement is better with the tightness degree that machine tool chief axis (1) couple, the joint stiffness between them
It is higher；But upward pulling force is unsuitable excessive, can otherwise damage whole coupling arrangement.
Claims (8)
1. the device for coupling in high precision between a kind of cutting tool handle and machine tool chief axis, including pull bar (2), elastic claw (3), screw thread
The structure such as straight pin (4) and the shank of tool (5), it is characterised in that：Pull bar (2), elastic claw (3), cylindrical pin with external thread (4), the shank of tool
(5) according to certain locus, by cooperate with couple, form a whole, it is ensured that the axis of machine tool chief axis (1) with
The axis of the shank of tool (5) is overlapped, and the shank of tool (5) outer conical surface is placed in the inner circle taper hole of machine tool chief axis (1) lower end, elastic claw
(3) it is placed in the interior cylindrical hole of the shank of tool (5), inner circle taper hole and machine tool chief axis (1) of the pull bar (2) through elastic claw (3)
Elongated hole, cylindrical pin with external thread (4) small end external screw thread and pull bar (2) internal thread are connected, cylindrical pin with external thread (4) end external screw thread and knife greatly
Tool handle (5) internal thread is connected, and outer conical surface and machine tool chief axis (1) lower end inner circle taper hole of the shank of tool (5) coordinate, the shank of tool
(5) the external cylindrical surface cooperation of interior cylindrical hole and elastic claw (3), the inner circle taper hole of elastic claw (3) and the outer conical surface of pull bar (2)
Coordinate, upward pulling force is applied to pull bar (2), increase the cylindrical column diameter of elastic claw (3), cause the cylindrical of the shank of tool (5)
Conical surface diameter increases, so that the outer conical surface of the shank of tool (5) is fitted close with machine tool chief axis (1) lower end inner circle taper hole, and makes
The distance between step surface and machine tool chief axis (1) lower surface in the middle of the shank of tool (5) is outside t reduces, until between them closely
Coordinate.
2. the device for coupling in high precision between a kind of cutting tool handle according to claim 1 and machine tool chief axis, its feature
It is that pull bar (2) profile is made up of external cylindrical surface and outer conical surface, outer cone end face one internal thread hole of band.
3. the device for coupling in high precision between a kind of cutting tool handle according to claim 1 and machine tool chief axis, its feature
It is that the elastic claw (3) is made up of external cylindrical surface and inner circle taper hole, and is made of elastomeric material.
4. the device for coupling in high precision between a kind of cutting tool handle according to claim 1 and machine tool chief axis, its feature
It is, closely-pitched external screw thread of cylindrical pin with external thread (4) two ends with different-diameter.
5. the device for coupling in high precision between a kind of cutting tool handle according to claim 1 and machine tool chief axis, its feature
It is that the described shank of tool (5) one end is made up of outer conical surface and interior cylindrical hole.
6. the device for coupling in high precision between a kind of cutting tool handle according to claim 1 and machine tool chief axis, its feature
It is that the taper of the shank of tool (5) outer conical surface is identical with the taper of machine tool chief axis (1) lower end inner circle taper hole.
7. the device for coupling in high precision between a kind of cutting tool handle according to claim 1 and machine tool chief axis, its feature
It is that the taper of pull bar (2) outer conical surface is identical with the taper of the inner circle taper hole of elastic claw (3).
8. the device for coupling in high precision between a kind of cutting tool handle according to claim 1 and machine tool chief axis, its feature
It is that gap coordinates between the external cylindrical surface of the elastic claw (3) and the interior cylindrical hole of the shank of tool (5) to be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164516.3A CN106799614A (en) | 2017-03-20 | 2017-03-20 | A kind of device coupled in high precision between cutting tool handle and machine tool chief axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164516.3A CN106799614A (en) | 2017-03-20 | 2017-03-20 | A kind of device coupled in high precision between cutting tool handle and machine tool chief axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106799614A true CN106799614A (en) | 2017-06-06 |
Family
ID=58988155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710164516.3A Withdrawn CN106799614A (en) | 2017-03-20 | 2017-03-20 | A kind of device coupled in high precision between cutting tool handle and machine tool chief axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106799614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464427A (en) * | 2022-08-15 | 2022-12-13 | 天津贺立刀具技术有限公司 | High-precision repeated positioning combined numerical control knife handle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201871986U (en) * | 2010-10-20 | 2011-06-22 | 祝小军 | High-rigidity connecting device between main shaft in machining center and cutting tool |
-
2017
- 2017-03-20 CN CN201710164516.3A patent/CN106799614A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201871986U (en) * | 2010-10-20 | 2011-06-22 | 祝小军 | High-rigidity connecting device between main shaft in machining center and cutting tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464427A (en) * | 2022-08-15 | 2022-12-13 | 天津贺立刀具技术有限公司 | High-precision repeated positioning combined numerical control knife handle |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170606 |
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| WW01 | Invention patent application withdrawn after publication |