CN2186633Y - Quick changable sleeve for straight handle tools - Google Patents
Quick changable sleeve for straight handle tools Download PDFInfo
- Publication number
- CN2186633Y CN2186633Y CN 94202368 CN94202368U CN2186633Y CN 2186633 Y CN2186633 Y CN 2186633Y CN 94202368 CN94202368 CN 94202368 CN 94202368 U CN94202368 U CN 94202368U CN 2186633 Y CN2186633 Y CN 2186633Y
- Authority
- CN
- China
- Prior art keywords
- hole
- ball
- sheath
- clamping hole
- cone
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a quick changeable sleeve for straight handle tools, comprising a cone whose gripping hole is provided with a girdle-shaped transmission groove and a ring-shaped groove with inner conical surface, a positioning sheath which is provided with an axial central through hole and partial outer conical surface and is provided with a ball hole for installing steel balls on the wall, an inner cone sheath whose axial center is provided with a conical through hole which corresponds to the conical surface of the positioning sheath, a ball sheath which is provided with a ball hole for installing steel balls on the wall and a positioning structure on the outer surface and the positioning structure can enable the ball sheath to move in a proper range, and a compression spring between the inner cone sheath and the ball sheath. The sleeve can quickly change tools, improves positioning accuracy and has a strong applicability.
Description
The utility model relates to a kind of machine tool accessories, particularly a kind of quick change Mohs sleeve that supplies clamping staight shank instrument to use.
The staight shank instrument typically refers to machine tap, straight shank drill, hole instruments such as straight shank reamer.The machine tool accessories of clamping staight shank instrument commonly used has tap holder and Mohs spring spool at present.Tap holder is made up of handle of a knife and tapered sleeve two parts, and the torque overload protective device is arranged on the tapered sleeve, in case screw tap fractures under special circumstances; but its complex structure, the big and price height of appearance and size also need be by various screw tap levelling moments of torsion; more fragile, and also to use special-purpose handle of a knife.What use always in batch process and special plane processing is the Mohs spring spool, but because its structural restriction, a kind of spring spool of specification can only be used for the cutter of diameter difference in the 0.10mm scope, and just a kind of spring spool of specification can only be used for a kind of cutter of shank diameter dimension basically.In addition, need the Mohs sleeve is taken off from the lathe spindle hole when changing cutter or cutter being carried out sharpening, remove branch sleeve again, waste time and energy.
The purpose of this utility model provides a kind of staight shank instrument quick change Mohs sleeve, this tube-in-tube structure is simple, use reliable, energy quick change cutter is to enhance productivity, the energy hi-Fix is to improve crudy, and appearance and size is little, and applicability is strong, and a kind of quick change sleeve of specification can be clamped in the cutter than several specifications in the major diameter difference scope.
The purpose of this utility model is achieved through the following technical solutions, a kind of staight shank instrument quick change Mohs sleeve, comprise a cone, the cross section of its bottom, clamping hole hole one driving groove is waist shape, near the groove that an endless belt inner conical surface is arranged on the wall of clamping hole opening part; One location sheath, it is installed in the bottom, hole of clamping hole, its axial centre has holds the central through hole that tool shank passes through, the part in its outside is the cylindrical surface that is slidingly matched with clamping hole, the another part in the outside is the fi-ustoconical surface of shrinking towards the clamping hole opening part, the cone-apex angle β of this trochoidal surface is the 16-30 degree, be preferably 20 degree, in addition, also uniform all ball holes between trochoidal surface on the same cross section and central through hole surface are installed with the steel ball that can outwards protrude from trochoidal surface simultaneously and inwardly protrude from the central through hole surface respectively movably in each ball hole; One inner conical drogue, it is installed in the clamping hole, a tapered end place, the outside of also close positioning sheath, its axial centre is and the conical butt through hole of the trochoidal surface corresponding matching of positioning sheath that its outside is the cylindrical surface that is slidingly matched with the clamping hole surface; One ball sheath, it is installed in the opening part of clamping hole, its axial centre has holds the central through hole that tool shank passes through, its outside is the cylindrical surface that is slidingly matched with the clamping hole surface, uniform all ball holes on the wall of its same cross section, the steel ball that can outwards protrude from outer surface simultaneously and inwardly protrude from inner surface is installed respectively in each ball hole movably, in addition, also be provided with in described cross-section and protrude from outer surface, the location structure that when the ball sheath is installed in the clamping hole, in the groove of endless belt inner conical surface, moves only, also have, on an end outer surface of the ball sheath that is exposed to clamping hole, the flange that extends radially outwardly; And a compression spring, between the end of the end that it is installed in inner conical drogue and relative ball sheath.
Improvement in addition of the present utility model is to have the radial direction through hole that is communicated with waist shape driving groove on the cone.
The utility model has the advantages that this tube-in-tube structure is simple, use reliably, can change cutter fast, and the positioning accuracy height, thereby not only enhance productivity but also improve crudy.In addition, its applicability is stronger, and a kind of quick change sleeve of specification can be clamped in the cutter than several specifications in the major diameter difference scope.
Below in conjunction with accompanying drawing embodiment of the present utility model is done detailed explanation:
Fig. 1 is the structure chart that the utility model one embodiment band broken section of cutter is installed;
Fig. 2 is the partial sectional view of expression cone structure;
Fig. 3 is the cutaway view along the A-A line among Fig. 2;
Fig. 4 is the longitudinal section of positioning sheath;
Fig. 5 is the longitudinal section of inner conical drogue;
Fig. 6 is the longitudinal section of ball sheath.
Referring to Fig. 1, comprise according to an embodiment of the present utility model: a cone 8, and positioning sheath 7, one inner conical drogues 5, one compression springs 4 and that have steel ball 6 that are installed in 9 li of the clamping holes of cone 8 have the ball sheath 2 of steel ball 3.But said structure fast and stable ground clamping or take off cutter 1.
Referring to Fig. 2 and Fig. 3, one end of cone 8 is the clamping holes 9 that have axially open, the bottom, hole of clamping hole 9 has a cross section to be the driving groove 10 of waist shape, driving groove energy reliable delivery moment of torsion and bearing axial pushing force, waist shape structure then can make it both be applicable to staight shank rotary tool (screw tap, reamer) square tail is applicable to the tang of staight shank instrument (straight shank twist drill, straight machine reamer) again.In addition, the radial direction through hole 22 that is communicated with waist shape driving groove 10 in addition on cone 8 when breaking in cone 8 with the shank of convenient cutter 1, can be released cone 8 by radial direction through hole 22 handle that will break.The groove 11 that one endless belt inner conical surface is arranged on the close hole wall of clamping hole 9 opening parts.This groove 11 is the 12-16 degree near a part of inner conical surface 12 of clamping hole 9 openings and the angle α of clamping hole wall, preferably 14 degree.
Referring to Fig. 1 and Fig. 4, positioning sheath 7 is installed in the bottom, hole of the clamping hole 9 of cone 8, the central through hole 13 that its axial centre has the shank of permission cutter 1 to pass through.The part in its outside be the cylindrical surface 14(that can be slidingly matched with the surface of clamping hole 9 when installing backup at the bottom of the hole of clamping hole 9); And the another part in its outside when to be fi-ustoconical surface 15(install the vertex of a cone towards the opening of clamping hole 9), its cone-apex angle β is the 16-30 degree, preferably 20 degree.In addition, in the outside also uniform plurality of balls hole 16 on the jacket wall of trochoidal surface 15, these ball holes 16 are all on same cross section.The opening of each ball hole 16 on outer surface is identical with the aperture, and the opening on inner surface is slightly less than the aperture, and this structure helps the installation and the location of steel ball 6.In addition, be installed in the steel ball 6 in each ball 16, as shown in Figure 1, can outwards protrude from trochoidal surface 15 simultaneously and inwardly protrude from the surface of central through hole 13, and can in ball hole 16, rotate and move radially.
Referring to Fig. 1 and Fig. 5, inner conical drogue 5 is installed in the tapering point part of close positioning sheath 7 in the clamping hole 9.Its axial centre is and the conical butt through hole 17 of trochoidal surface 15 corresponding matching of positioning sheath 7 that its cone-apex angle also is β.The outside of inner conical drogue 5 is the cylindrical surfaces that can be slidingly matched with clamping hole 9 surfaces.Inner conical drogue 5 after the installation, its cone-shaped hole 17 surfaces can contact with the steel ball 6 outside the trochoidal surface 15 that protrudes from positioning sheath 7.
Referring to Fig. 1 and Fig. 6, ball sheath 2 is installed in the opening part of clamping hole 9.Its axial centre is the central through hole 18 that the shank of a permission cutter 1 passes through, its outside is the cylindrical surface that can be slidingly matched with clamping hole 9 surfaces, and the end outside it is exposed to clamping hole 9 is a flange that extends radially outward 21, all enters clamping hole 9 in order to prevent ball sheath 2.The identical ball hole 20 of ball hole 16 structures on also uniform and positioning sheath 7 on the wall of ball sheath 2, they also all are positioned on the same cross section, and in each ball hole 20 steel ball 3 that same function is arranged with steel ball 6 are installed respectively also.In addition, on described cross section, also be provided with the location structure 20 that protrudes from ball sheath 2 outer surfaces, when ball sheath 2 is installed the location in clamping hole 9 after, should make location structure 20 just be positioned at annular groove 11, and each steel ball 3 also just is positioned near groove 11 or its, because location structure 20 can only move groove 11 in, thereby can prevent ball sheath 2 disengaging clamping holes 9 and exceedingly mobile in clamping hole 9.
At last, referring to Fig. 1, the compression spring 4 in clamping hole 9 is tight against between inner conical drogue 5 and ball sheath 2.
Operation principle of the present utility model is, when not inserting cutter 1 in the sleeve, ball sheath 2 and inner conical drogue 5 move to round about respectively under the effect of compression spring 4 and can not move to extremely, at this moment, each steel ball 3 on the ball sheath 2 is drawn close to the axis of ball sheath 2 under the extruding of inner conical surface 12 parts of the most close annular groove 11 edges to greatest extent, thereby forms the inboard and smallest circle internal diameter that forms of all steel balls of envelope 3 in the central through hole 18 of ball sheath 2; Simultaneously, each steel ball 6 on the positioning sheath 7 is drawn close to the axis of positioning sheath 7 under the extruding on cone-shaped hole 17 surfaces of inner conical drogue 5 to greatest extent, thereby in the central through hole 13 of positioning sheath 7, form the smallest circle internal diameter that all steel balls 6 of envelope surround, and these two smallest circle internal diameters equate basically; And the internal diameter of the central through hole 18 of ball sheath 2 also equates basically with the internal diameter of the central through hole 13 of positioning sheath 7.Obviously, this two smallest circle internal diameter is less than footpath within two central through holes.Therefore, the handle of the cutter 1 of insertion footpath can be selected between greater than above-mentioned two smallest circle internal diameters and the internal diameter less than two central through holes 18 and 13.When the shank of cutter 1 inserts sleeve, the chamfering of cutter 1 shank is each steel ball 3 of contact earlier, and the active force that overcomes spring 4 by each steel ball 3 promotion spin sheath 2 moves right (referring to position shown in Figure 1), and steel ball 3 is fallen in the groove 11 along inner conical surface 12, the round internal diameter that each steel ball 3 of envelope is formed progressively enlarges, enter to extremely until the shank that can permit cutter 1, this moment, the ball sheath 2 stopped to move right.Along with the shank continuation of cutter 1 is inserted to the right, chamfering on the shank contacts and pushes each steel ball 6 again, like this, force each steel ball 6 to give 5 one effect component left of inner conical drogue by the inclined-plane of cone-shaped hole 17, make inner conical drogue 5 overcome the active force of spring 4 and to left movement, the shank that expands permission cutter 1 to the movement outside of positioning sheath 7 and round internal diameter that each steel ball 6 of envelope is formed up to each steel ball 6 enters to extremely.At last, continue to insert cutter 1 to the right, insert the waist shape driving groove 10 of cone 8 until the transmission tang (or transmission square toes) of cutter 1.So far, cutter 1 installs.Driving groove 10 transmits moment of torsion and bears the axial internal force of cutter.And steel ball 6 is on the inclined-plane of spring 4(by inner cone 5 and cone-shaped hole 17 thereof) effect under be close to the periphery of cutter 1 shank, play positioning action.Steel ball 3 at spring 4(by the inner conical surface 12 on spin sheath 2 and the groove 11) effect under be close to the periphery of cutter 1 shank, both played positioning action, rely on inner conical surface 12 to play axial clamping action again, make cutter 1 can bear outside axial tension.Owing to have two circle steel balls 3 and 6 to play positioning action simultaneously on the axial direction of cutter 1, so can guarantee the positioning accuracy (axiality) of cutter 1 and cone 8.In the time will taking off cutter 1, only need ball sheath 2 is slightly promoted to the right, the clamping action that forms between the outer round surface of steel ball 3 on the ball sheath 2 and cutter 1 shank promptly disappears, and cutter 1 can be extracted, thus but rapid changing knife tool.
Claims (3)
1, a kind of staight shank instrument comprises with quick change Mohs sleeve
One cone (8) has a driving groove (10) in the bottom, hole of its clamping hole (9), near the groove (11) that an endless belt inner conical surface is arranged on the hole wall of clamping hole (9) opening part;
One ball sheath (2), it is installed in the opening part of clamping hole (9), the central through hole (18) that its axial centre has appearance cutter (1) shank to pass through, its outside is the cylindrical surface that is slidingly matched with clamping hole (9) surface, be positioned at uniform all ball holes (19) on the wall of same cross section at it, the steel ball (3) that can outwards protrude from its outer surface simultaneously and inwardly protrude from its inner surface is installed respectively in each ball hole (19) movably; In addition, also be provided with in same described cross-section and protrude from location structure (20) its outer surface, that in described annular groove (11), move only in ball sheath (2) is installed in clamping hole (9) time; This external end that is exposed to the outer ball sheath (2) of clamping hole (9) has a flange that extends radially outward (21); And
One compression spring (4);
It is characterized in that, also comprise:
One location sheath (7), it is installed in the bottom, hole of clamping hole (9), the central through hole (13) that its axial centre has appearance cutter (1) shank to pass through, its a part of outer surface is the cylindrical surface (14) that is slidingly matched with clamping hole (9), and another part outer surface is the fi-ustoconical surface (15) of shrinking towards clamping hole (9) opening part, and the cone-apex angle β of this trochoidal surface is the 16-30 degree; In addition, also uniform all ball holes (16) between trochoidal surface on the same cross section (15) and central through hole (13) surface are installed with movably respectively in each ball hole (16) and can outwards protrude from trochoidal surface (15) simultaneously and inwardly protrude from the surperficial steel ball (6) of central through hole (13); And
One inner conical drogue (5), it is installed in the tapering point part of close positioning sheath (7) in the clamping hole (9), its axial centre be one with the conical butt through hole (17) of trochoidal surface (15) corresponding matching of positioning sheath (7), its outside is the cylindrical surface that is slidingly matched with clamping hole (9);
In addition, described compression spring (4) is installed between described inner conical drogue (5) and the ball sheath (2); And the cross section of described driving groove (10) is waist shape.
2, a kind of staight shank instrument as claimed in claim 1 is characterized in that having the radial direction through hole (22) that is communicated with waist shape driving groove (10) on the cone (8) with quick change Mohs sleeve.
3, a kind of staight shank instrument as claimed in claim 1 is characterized in that with quick change Mohs sleeve, and the cone-apex angle β of the fi-ustoconical surface (15) in positioning sheath (7) outside is 20 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202368 CN2186633Y (en) | 1994-01-19 | 1994-01-19 | Quick changable sleeve for straight handle tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202368 CN2186633Y (en) | 1994-01-19 | 1994-01-19 | Quick changable sleeve for straight handle tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186633Y true CN2186633Y (en) | 1995-01-04 |
Family
ID=33822159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94202368 Expired - Fee Related CN2186633Y (en) | 1994-01-19 | 1994-01-19 | Quick changable sleeve for straight handle tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186633Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528377A (en) * | 2012-01-12 | 2012-07-04 | 中煤北京煤矿机械有限责任公司 | Rolling head and special dismounting assistive tool thereof |
| CN104249198A (en) * | 2013-06-26 | 2014-12-31 | 安特(苏州)精密机械有限公司 | Quick-detachment type die interior tapping screw tap device |
| CN104384908A (en) * | 2014-07-25 | 2015-03-04 | 柯马(上海)工程有限公司 | Full-automatic sleeve replacing device and method |
| CN107009130A (en) * | 2017-04-13 | 2017-08-04 | 安徽江淮汽车集团股份有限公司 | Tool changing equipment, instrument connection tapered sleeve and instrument |
| CN109663995A (en) * | 2019-01-24 | 2019-04-23 | 淮阴师范学院 | A kind of round tube part guide tap frame able to quickly change |
| CN110325341A (en) * | 2017-02-27 | 2019-10-11 | 爱维康热流道系统有限公司 | Passage of heat equipment with overload protection arrangement |
| CN110425207A (en) * | 2019-08-23 | 2019-11-08 | 江苏金帆新程装备有限公司 | A kind of quick chuck component |
| CN111168624A (en) * | 2020-02-22 | 2020-05-19 | 上海阿为特精密机械股份有限公司 | Small-size adjustable pressure machine |
| CN114473069A (en) * | 2022-03-28 | 2022-05-13 | 什邡慧丰采油机械有限责任公司 | Special combined cutting tool for chamfering valve body |
-
1994
- 1994-01-19 CN CN 94202368 patent/CN2186633Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528377A (en) * | 2012-01-12 | 2012-07-04 | 中煤北京煤矿机械有限责任公司 | Rolling head and special dismounting assistive tool thereof |
| CN104249198A (en) * | 2013-06-26 | 2014-12-31 | 安特(苏州)精密机械有限公司 | Quick-detachment type die interior tapping screw tap device |
| CN104384908A (en) * | 2014-07-25 | 2015-03-04 | 柯马(上海)工程有限公司 | Full-automatic sleeve replacing device and method |
| CN110325341A (en) * | 2017-02-27 | 2019-10-11 | 爱维康热流道系统有限公司 | Passage of heat equipment with overload protection arrangement |
| CN107009130A (en) * | 2017-04-13 | 2017-08-04 | 安徽江淮汽车集团股份有限公司 | Tool changing equipment, instrument connection tapered sleeve and instrument |
| CN109663995A (en) * | 2019-01-24 | 2019-04-23 | 淮阴师范学院 | A kind of round tube part guide tap frame able to quickly change |
| CN109663995B (en) * | 2019-01-24 | 2024-01-26 | 淮阴师范学院 | But pipe part is with quick change direction screw tap frame |
| CN110425207A (en) * | 2019-08-23 | 2019-11-08 | 江苏金帆新程装备有限公司 | A kind of quick chuck component |
| CN111168624A (en) * | 2020-02-22 | 2020-05-19 | 上海阿为特精密机械股份有限公司 | Small-size adjustable pressure machine |
| CN114473069A (en) * | 2022-03-28 | 2022-05-13 | 什邡慧丰采油机械有限责任公司 | Special combined cutting tool for chamfering valve body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |