CN107457417B - Cutter disc inner hole clamping tool - Google Patents
Cutter disc inner hole clamping tool Download PDFInfo
- Publication number
- CN107457417B CN107457417B CN201710944559.3A CN201710944559A CN107457417B CN 107457417 B CN107457417 B CN 107457417B CN 201710944559 A CN201710944559 A CN 201710944559A CN 107457417 B CN107457417 B CN 107457417B
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- CN
- China
- Prior art keywords
- expander
- tool
- hole
- base
- threaded hole
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/4006—Gripping the work or tool by a split sleeve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a tool for clamping an inner hole of a cutter head, which comprises a base and an expansion chuck, wherein the base is in a round table shape, a U-shaped groove is formed in the edge of the lower end of the base, a reference platform is arranged at the upper end of the base, an outer threaded hole is formed in the reference platform, a guide table is arranged in the middle of the reference platform, the guide table is cylindrical, a through hole penetrates through the middle of the upper end of the guide table, and the expansion chuck is arranged on the reference platform. The invention fixes the cutter head by matching the expander with the positioning key, has high efficiency, high repeated positioning precision, can not generate clamping marks, and has the advantages of simple structure, convenient operation, strong flexibility and the like.
Description
Technical Field
The invention relates to the field of tool clamps, in particular to a tool for clamping an inner hole of a cutter head.
Background
Currently, a clamp for clamping a cutterhead in the market is usually clamped by a screw fixing or clamping manner; the clamping mode has low efficiency and low repeated positioning precision, and can generate clamping marks at the connecting part so as to influence the beauty of the cutterhead.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the cutter disc inner hole clamping tool for mounting the cutter disc in a clamping-mark-free manner with high efficiency and high repeated positioning precision.
In order to solve the technical problems, the invention adopts the following technical scheme:
the tool comprises a base and an expansion chuck, wherein a U-shaped groove is formed in the edge of the lower end of the base, a reference platform is arranged at the upper end of the base, a guide table is arranged in the middle of the reference platform, and the expansion chuck is arranged on the reference platform;
the lower part of the expansion chuck is a cylindrical part, key grooves are symmetrically arranged at the edge of the upper end of the cylindrical part, and positioning keys are arranged in the key grooves; the edge of the upper end of the expansion chuck is provided with a clearance surface, the clearance surface is annular, the inner side of the clearance surface is provided with a working surface, and the middle part of the working surface is provided with an expander;
the expander is cylindrical, a plurality of dividing grooves penetrating through the side wall of the expander are formed in the expander, and a deformation groove is formed in the lower end of the expander.
In the above technical solution, preferably, the dividing grooves have six channels, and the six channels of dividing grooves are parallel to each other and uniformly distributed on the expander; the dividing groove penetrates from the top to the bottom of the expander.
In the above technical scheme, preferably, a guiding surface is arranged at the upper section of the outer side of the expander, and the guiding surface is chamfered with the top surface of the expander.
In the above technical scheme, preferably, the reference platform is provided with an outer threaded hole, and the upper end of the cylindrical part is provided with a countersunk threaded hole matched with the outer threaded hole; the middle part of the upper end of the guide table is provided with a through hole in a penetrating way, and a middle threaded hole matched with the through hole is formed in the expander.
In the above technical scheme, preferably, the countersunk head screw holes are four in number and are symmetrically and uniformly distributed along the clearance surface.
In the above technical scheme, preferably, the internal middle threaded hole of the expander is internally provided with a conical screw, and the upper end of the middle threaded hole is provided with a conical cavity matched with the conical screw.
In the above technical scheme, preferably, the bottom of the expansion chuck is provided with a cylindrical cavity in clearance fit with the guide table, and the top end of the cylindrical cavity is provided with an avoidance groove.
In the above technical scheme, preferably, a weight-reducing cavity is formed at the bottom of the base.
In the above technical solution, preferably, one end of the positioning key facing the expander is semi-cylindrical, and the positioning key is provided with a positioning countersunk hole; threaded holes matched with the positioning counter bores are formed in the key grooves.
In the above technical solution, preferably, the expander and the working surface are perpendicular to each other.
The cutter disc inner hole clamping tool provided by the invention has the main beneficial effects that:
when the cutter head blank is used, the cutter head blank is sleeved on the outer wall of the expander, the cutter head blank is matched and positioned through the upper surface of the positioning key, a conical screw is installed at the upper end of the expander and screwed down, the conical screw extrudes the expander through the conical surface in the downward movement process, so that the expander deforms and expands, the outer wall of the expander is tightly attached to the inner hole wall of the cutter head, and the cutter head is tightly fixed; compared with the prior art, the cutter head can be fixed by only screwing one conical screw, so that the cutter head can be clamped quickly, and the cutter head is convenient and quick.
The cutter head is fixed by matching the expander with the positioning key, and the bottom surface of the cutter head is always attached to the upper surface of the positioning key when the cutter head is fixed because the height of the positioning key is fixed, so that the repeated positioning progress of the cutter head can be ensured; moreover, the fastening degree is gradually improved through the deformation expansion of the expander, compared with the existing clamping or screw connection mode, clamping indentation cannot be generated, and the deformation degree is small; the sizes of the corresponding expander and the positioning key are changed by changing the expansion chucks with different sizes, so that the cutter disc clamping requirements of different sizes can be met.
Drawings
Fig. 1 is a schematic diagram of connection relation of all parts of a tool for clamping an inner hole of a cutter head.
Fig. 2 is a schematic structural view of the base.
Fig. 3 is a schematic top view of the base.
Fig. 4 is a cross-sectional view of the base along the direction A-A in fig. 3.
Fig. 5 is a schematic structural view of the expansion chuck.
Fig. 6 is a top view of the expansion chuck.
Fig. 7 is a cross-sectional view of the expansion chuck taken along the direction B-B in fig. 6.
Fig. 8 is a top view of the positioning key.
Fig. 9 is a schematic diagram of the overall structure of the clamping tool.
Fig. 10 is a schematic diagram of a connection relationship between a clamping tool and a cutterhead.
The device comprises a base, 2, an expansion chuck, 3, countersunk screws, 4, a positioning key, 5, a conical screw, 6, a U-shaped groove, 7, a reference platform, 8, a guide table, 9, a through hole, 10, an outer threaded hole, 11, a weight reduction cavity, 12, countersunk screw holes, 13, a clearance surface, 14, a working surface, 15, an expander, 16, a guide surface, 17, a key groove, 18, a cylindrical cavity, 19, a middle threaded hole, 20, a partition groove, 21, a conical cavity, 22, a positioning countersunk hole, 23, a deformation groove, 24 and a cutter head.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
fig. 1 and 9 are schematic structural diagrams of a tool for clamping an inner hole of a cutterhead.
The tool for clamping the inner hole of the cutterhead comprises a base 1 and an expansion chuck 2, wherein the base 1 is in a circular truncated cone shape, the lower end of the base 1 is in a cylindrical shape, U-shaped grooves 6 are formed in the edge of the lower end of the base 1, and the four U-shaped grooves 6 are symmetrically and uniformly distributed along the circumference of the cylindrical shape; the U-shaped groove 6 is used for fixing the clamping tool on the machine tool, the upper end of the base 1 is provided with a reference platform 7, as shown in fig. 3, the reference platform 7 is provided with four outer threaded holes 10, and the middle part of the reference platform 7 is provided with a guide table 8.
An avoidance groove is formed between the guide table 8 and the reference platform 7, the avoidance groove is an annular groove, the guide table 8 is cylindrical, a through hole 9 is formed in the middle of the upper end of the guide table 8 in a penetrating mode, the through hole 9 is a threaded hole, and outer threaded holes 10 are symmetrically and uniformly distributed around the guide table 8; as shown in fig. 4, the bottom of the guide table 8 is provided with a weight-reducing cavity 11.
As shown in fig. 5, the reference platform 7 is provided with an expansion chuck 2 in a matched manner through a guide table 8, the lower part of the expansion chuck 2 is cylindrical, the upper end of the cylindrical part is provided with countersunk screw holes 12 matched with an outer threaded hole 10, and as shown in fig. 6, the countersunk screw holes 12 are symmetrically and uniformly distributed along the center of the upper end of the cylindrical part; the upper end edge symmetry of cylindrical portion is provided with a pair of keyway 17, installs locating key 4 in the keyway 17, and as shown in fig. 8, locating key 4 is semi-cylindrical towards the one end at expansion chuck 2 center, and the other end is arc surface or plane, has seted up location counter bore 22 on the locating key 4, is provided with the screw hole with location counter bore 22 complex in the keyway 17.
The edge of the upper end of the expansion chuck 2 is provided with a clearance surface 13, the clearance surface 13 is annular, the inner side of the clearance surface 13 is provided with a working surface 14, and the height of the working surface 14 is higher than that of the clearance surface 13; an expander 15 is provided in the middle of the working surface 14.
The expander 15 is cylindrical, the lower end of the expander 15 is provided with a deformation groove 23, the deformation groove 23 is an annular groove with a semicircular cross section at one end, one semicircular end points to the center of the expander 15, and one end, connected with the working surface 14, of the deformation groove 23 is provided with an avoidance groove; the expander 15 is provided with a middle threaded hole 19 matched with the through hole 9, the middle threaded hole 19 is internally provided with a conical screw 5, and as shown in fig. 7, the upper end of the middle threaded hole 19 is provided with a conical cavity 21 matched with the conical screw 5.
The side wall of the expander 15 is provided with six dividing grooves 20 in a penetrating way, the dividing grooves 20 are six in number, and the six dividing grooves 20 are mutually parallel and uniformly distributed on the expander 15; the dividing groove 20 penetrates from the top to the bottom of the expander 15; by providing the dividing grooves 20, the expander 15 is divided into six blocks, and the deformation grooves 23 are formed in the lower end of the expander 15, so that the expander 15 can deform to a large extent under the extrusion of the conical screw 5, and the fastening degree of connection can be improved when the cutter head 24 is connected through the expander 15.
The upper section of the outer side of the expander 15 is provided with a guide surface 16, the guide surface 16 is chamfered with the top surface of the expander 15, and the cutter head 24 is convenient to install by arranging the guide surface 16, so that scratches are prevented.
The bottom of expansion chuck 2 has seted up with guide table 8 clearance fit's cylinder chamber 18, and the top of cylinder chamber 18 is provided with dodges the groove, dodges the groove and be the arc recess towards expansion chuck 2 edge side.
In use, the base 1 is mounted on a machine tool through the U-shaped groove 6, the countersunk screw 3 is mounted by matching the countersunk screw hole 12 with the outer threaded hole 10, the expansion chuck 2 is mounted on the reference platform 7 of the base 1 by matching the guide table 8 with the cylindrical cavity 18, and the positioning key 4 is mounted in the key slot 17.
As shown in fig. 10, a cutter head 24 blank is sleeved on the outer wall of the expander 15, and is matched and positioned through the upper surface of the positioning key 4, a conical screw 5 is installed at the upper end of the expander 15 and is screwed down, the conical screw 5 presses a conical cavity 21 part through a conical surface in the downward movement process, and then the expander 15 is pressed, so that the expander 15 separated by the dividing groove 20 deforms and expands outwards around the deformation groove 23, the outer wall of the expander 15 is tightly attached to the inner hole wall of the cutter head 24, and the cutter head 24 is tightly fixed; compared with the prior art, the invention can realize the fixation of the cutterhead 24 by only screwing the conical screw 5, and can clamp the cutterhead quickly, conveniently and quickly.
The above description of the embodiments of the present invention has been provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and that all the inventions using the inventive concept are to be protected as long as various changes are within the spirit and scope of the present invention as defined and defined by the appended claims to those skilled in the art.
Claims (6)
1. The tool is characterized by comprising a base (1) and an expansion chuck (2), wherein a U-shaped groove (6) is formed in the edge of the lower end of the base (1), a reference platform (7) is arranged at the upper end of the base (1), a guide table (8) is arranged in the middle of the reference platform (7), the expansion chuck (2) is arranged on the reference platform (7), a cylindrical cavity (18) in clearance fit with the guide table (8) is formed in the bottom of the expansion chuck (2), and an avoidance groove is formed in the top end of the cylindrical cavity (18);
the lower part of the expansion chuck (2) is a cylindrical part, key grooves (17) are symmetrically arranged at the edge of the upper end of the cylindrical part, and positioning keys (4) are arranged in the key grooves (17); the edge of the upper end of the expansion chuck (2) is provided with a clearance surface (13), the clearance surface (13) is annular, the inner side of the clearance surface (13) is provided with a working surface (14), the middle part of the working surface (14) is provided with an expander (15), and the expander (15) is mutually perpendicular to the working surface (14);
the expander (15) is cylindrical, a plurality of dividing grooves (20) penetrating through the side wall of the expander (15) are formed in the expander (15), and a deformation groove (23) is formed in the lower end of the expander (15);
an outer threaded hole (10) is formed in the reference platform (7), and a countersunk threaded hole (12) matched with the outer threaded hole (10) is formed in the upper end of the cylindrical part; a through hole (9) is formed in the middle of the upper end of the guide table (8) in a penetrating manner, and a middle threaded hole (19) matched with the through hole (9) is formed in the expander (15); the upper end of the middle threaded hole (19) of the expander (15) is provided with a conical cavity (21), and a conical screw (5) is arranged in the conical cavity (21).
2. The tool for clamping the inner hole of the cutterhead according to claim 1, wherein the number of the dividing grooves (20) is six, and the six dividing grooves (20) are mutually parallel and uniformly distributed on the expander (15); the dividing groove (20) extends from the top to the bottom of the expander (15).
3. Tool for clamping inner holes of cutterhead according to claim 1, characterized in that the outer upper section of the expander (15) is provided with a guiding surface (16), the guiding surface (16) being chamfered with the top surface of the expander (15).
4. Tool according to claim 1, wherein the countersunk head screw holes (12) are four in number and are symmetrically and uniformly distributed along the clearance surface (13).
5. The tool for clamping the inner hole of the cutterhead according to claim 1, wherein a weight reducing cavity (11) is formed in the bottom of the base (1).
6. The tool for clamping the inner hole of the cutterhead according to claim 1, wherein one end of the positioning key (4) facing the expander (15) is semi-cylindrical, and a positioning countersink (22) is formed in the positioning key (4); and a threaded hole matched with the positioning counter bore (22) is formed in the key groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944559.3A CN107457417B (en) | 2017-10-12 | 2017-10-12 | Cutter disc inner hole clamping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944559.3A CN107457417B (en) | 2017-10-12 | 2017-10-12 | Cutter disc inner hole clamping tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107457417A CN107457417A (en) | 2017-12-12 |
| CN107457417B true CN107457417B (en) | 2023-09-08 |
Family
ID=60553506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710944559.3A Active CN107457417B (en) | 2017-10-12 | 2017-10-12 | Cutter disc inner hole clamping tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107457417B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637273A (en) * | 2018-08-01 | 2018-10-12 | 湖南南方通用航空发动机有限公司 | A kind of fixture and process of rotary part facing processing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1261100A (en) * | 1969-07-18 | 1972-01-19 | Churchill Charles Ltd | An expanding internal chuck |
| CN1396847A (en) * | 2000-02-11 | 2003-02-12 | 桑德维克公司 | Machine tool |
| JP2005224897A (en) * | 2004-02-13 | 2005-08-25 | Teikoku Chuck Kk | Collet chuck device |
| EP1757391A1 (en) * | 2005-08-23 | 2007-02-28 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Expansion chucking device |
| CN201168885Y (en) * | 2008-04-08 | 2008-12-24 | 宁波跃进汽车前桥有限公司 | Rapid screw compressing apparatus |
| CN105081435A (en) * | 2014-05-16 | 2015-11-25 | 山特维克知识产权股份有限公司 | Fixation arrangement as well as an interchangeable part and a lock key |
| CN204976095U (en) * | 2015-08-21 | 2016-01-20 | 上海无线电设备研究所 | A elastically positioned clamping device for thin wall loop forming element |
| CN205967480U (en) * | 2016-07-26 | 2017-02-22 | 宁波珈多利机械有限公司 | Draw formula internal stay set anchor clamps that rise after application |
| CN207272224U (en) * | 2017-10-12 | 2018-04-27 | 成都邦普切削刀具股份有限公司 | A kind of cutterhead endoporus clamping tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2383062B1 (en) * | 2010-04-30 | 2013-07-10 | Seco Tools AB | Milling tool with clamping screw having male grip at end thereof |
-
2017
- 2017-10-12 CN CN201710944559.3A patent/CN107457417B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1261100A (en) * | 1969-07-18 | 1972-01-19 | Churchill Charles Ltd | An expanding internal chuck |
| CN1396847A (en) * | 2000-02-11 | 2003-02-12 | 桑德维克公司 | Machine tool |
| JP2005224897A (en) * | 2004-02-13 | 2005-08-25 | Teikoku Chuck Kk | Collet chuck device |
| EP1757391A1 (en) * | 2005-08-23 | 2007-02-28 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Expansion chucking device |
| CN201168885Y (en) * | 2008-04-08 | 2008-12-24 | 宁波跃进汽车前桥有限公司 | Rapid screw compressing apparatus |
| CN105081435A (en) * | 2014-05-16 | 2015-11-25 | 山特维克知识产权股份有限公司 | Fixation arrangement as well as an interchangeable part and a lock key |
| CN204976095U (en) * | 2015-08-21 | 2016-01-20 | 上海无线电设备研究所 | A elastically positioned clamping device for thin wall loop forming element |
| CN205967480U (en) * | 2016-07-26 | 2017-02-22 | 宁波珈多利机械有限公司 | Draw formula internal stay set anchor clamps that rise after application |
| CN207272224U (en) * | 2017-10-12 | 2018-04-27 | 成都邦普切削刀具股份有限公司 | A kind of cutterhead endoporus clamping tool |
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| Publication number | Publication date |
|---|---|
| CN107457417A (en) | 2017-12-12 |
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