CN101323026A - Arbor chuck for fixing rotatable knife blade - Google Patents
Arbor chuck for fixing rotatable knife blade Download PDFInfo
- Publication number
- CN101323026A CN101323026A CNA2008100319026A CN200810031902A CN101323026A CN 101323026 A CN101323026 A CN 101323026A CN A2008100319026 A CNA2008100319026 A CN A2008100319026A CN 200810031902 A CN200810031902 A CN 200810031902A CN 101323026 A CN101323026 A CN 101323026A
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- holder
- tool rest
- blade
- hole
- protuberance
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Abstract
The invention discloses a tool fixture which is used for fixing an indexable blade, comprising a tool seat, a fastening bolt and a clamping piece. The tool seat is provided with an assembling part for the indexable blade, the clamping piece is arranged above the tool seat and is provided with a through hole, the fastening bolt is sheathed in the through hole and is connected with the tool seat by thread, the fastening bolt is sheathed and provided with a compressing spring which is arranged between the tool seat and the clamping piece, the joint of the back end of the clamping piece and the tool seat is provided with a back hook part, the back end of the tool seat is provided with a back projection which is arranged in the back hook part of the clamping piece. The tool fixture which is used for fixing the indexable blade has the advantages of saving the time for changing the blade, increasing processing efficiency and more uniform distribution of the clamping force.
Description
Technical field
The present invention relates to the mechanical grip cutter holder that machining is used, relate in particular to the cutter holder that is used for fixing indexable insert tip, throw away tip.
Background technology
At present, exist the employing Hardmetal materials of multiple shape or the Indexable cutting inserts that ceramic material is made, as rhombus, rhomboid and leg-of-mutton indexable insert tip, throw away tip, this type of blade is normally fixed by the mechanical grip cutter holder.The existing cutter holder that is used for fixing indexable insert tip, throw away tip has various ways, as the patent No. is that the patent of invention of ZL95193314.0 discloses a kind of cutter holder that is used for Indexable insert, the clamping device of this cutter holder is in free state after unclamping blade, left and right sides deflection may take place or rotate around its fishbolt in clamping device at this moment, need the artificial position of adjusting clamping device when once more blade being installed, after position adjustment accurately, just can tighten fishbolt and fixed blade, its complicated operating process, it is longer to change the time that blade consumed, and influences working (machining) efficiency; In addition, this clamping device contacts for any with blade center locating hole inwall or the contact of segment circular arc line, the horizontal chucking power that clamping device acts on the blade concentrates on this point, the stress point area is less, stress is concentrated, blade discontinuity, blade have along the stress point trend of breaking, and also might produce the unsettled phenomenon of whole tooling system.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, the cutter holder that is used for fixing indexable insert tip, throw away tip that provide a kind of and save the blade exchange time, can improve working (machining) efficiency, chucking power is more evenly distributed.
A kind of cutter holder that is used for fixing indexable insert tip, throw away tip, comprise tool rest, fishbolt and holder, described tool rest is provided with the transposition blade installation portion, described holder places the tool rest top, holder is provided with through hole, fishbolt is placed in the through hole and with tool rest and is threaded, be arranged with the compression spring on the fishbolt, this compression spring is between tool rest and holder, the position that described holder rear end and tool rest join is provided with the back hook portion, the rear end of described tool rest is provided with the back protuberance, and this back is outstanding to be deployed in the back hook portion of holder.
The lower surface of described holder front end is provided with the column protuberance that is suitable for the hole wall adjacency of transposition blade center positioning hole, and the position that described lower surface is adjacent with the column protuberance is to be suitable for and bottom surface, end face location adjacency, smooth, transposition blade location.
Described column protuberance is provided with one section empty avoiding batter post face, one section empty avoiding plane is suitable for forming the face of cylinder that axial line contacts with the hole wall of transposition blade center positioning hole with two sections, the empty avoiding plane is connected in empty avoiding batter post face below, and two sections faces of cylinder are connected to the both sides on empty avoiding plane.
The back protuberance of described tool rest has first top incline and first bottom incline, and the back hook portion of described holder has can contact second top incline that cooperates with first top incline, and can contact second bottom incline that cooperates with first bottom incline.
Compared with prior art, advantage of the present invention just is: tool rest is provided with the back protuberance, the position that holder rear end and tool rest join is provided with the back hook portion, the back outstanding of tool rest deployed in the back hook portion of holder, when the fishbolt of outwarding winding is changed blade or blade transposition, under the elastic force effect of compression spring, the column protuberance of holder front end lifts and breaks away from blade center's locating hole, second bottom incline of back hook portion contacts cooperation with first bottom incline of back protuberance, realize the constraint of tool rest to the holder rear end, can avoid the holder double swerve effectively or rotate around fishbolt, and, can under the situation of the fishbolt of not exclusively outwarding winding, realize the replacing and the transposition of blade, save the blade exchange time, improve working (machining) efficiency.The column protuberance of holder is provided with one section empty avoiding batter post face, one section empty avoiding plane and two sections faces of cylinder, the empty avoiding plane does not all contact with the center positioning hole of blade with empty avoiding batter post face, form the empty avoiding structure, two sections faces of cylinder are connected to the both sides on empty avoiding plane, the face of cylinder contacts with the hole wall formation axial line of transposition blade center positioning hole during clamping blade, thereby can produce stable, disperse, uniform clamping force, the clamping of blade is more solid and reliable, with respect to other tool clamping systems, cutter holder of the present invention has more excellent clamping rigidity and blade transposition precision.
Description of drawings
Fig. 1 is a plan structure schematic diagram of the present invention;
Fig. 2 is the A-A cross section view among Fig. 1;
Fig. 3 is the stereogram one of hold assembly of the present invention;
Fig. 4 is the stereogram two of hold assembly of the present invention;
Fig. 5 is the B-B cross section view among Fig. 2;
Fig. 6 is the structural representation of the present invention when unclamping transposition blade.
Each label is represented among the figure:
1, tool rest 2, fishbolt
3, holder 4, compression spring
5, transposition blade 6, backing plate
7, retaining pad 11, blade installation portion
12, screwed hole 13, back protuberance
111, backing plate locating hole 131, first top incline
132, first bottom incline 121, containing hole
31, through hole 32, back hook portion
33, column protuberance 34, bottom surface, location
321, second top incline 322, second bottom incline
331, empty avoiding batter post face 332, empty avoiding plane
333, the face of cylinder 51, center positioning hole
52, location end face 53, bottom surface
61, centre bore CL1, first central axis
CL2, the second central axis C L3, centre normal
The specific embodiment
The cutter holder that is used for fixing indexable insert tip, throw away tip of the present invention is suitable for fixedly rhombus, rhomboid and leg-of-mutton transposition blade 5, such transposition blade 5 can be made by Hardmetal materials or ceramic material, and has a smooth bottom surface 53, a location end face 52 and a center positioning hole 51.Be that example is described in further detail technical scheme of the present invention with the cutter holder that is applicable to clamping rhombus transposition blade below.
To shown in Figure 6, the cutter holder that is used for fixing indexable insert tip, throw away tip of the present invention comprises tool rest 1, holder 3, fishbolt 2, compression spring 4, backing plate 6 and retaining pad 7 as Fig. 1.Tool rest 1 is provided with transposition blade installation portion 11 and screwed hole 12, and screwed hole 12 epimeres are provided with and hold the containing hole 121 that compresses spring 4.The angle of blade installation portion 11 two sides is according to the shape setting of clamping transposition blade 5, blade installation portion 11 bottom surfaces are provided with backing plate locating hole 111, backing plate 6 places on the bottom surface of blade installation portion 11, retaining pad 7 passes the centre bore 61 of backing plate 6 and inserts in the backing plate locating hole 111 of blade installation portion 11, play effect to backing plate 6 location, transposition blade 5 places on the backing plate 6, and two adjacent sidewalls of transposition blade 5 contact with the two side of blade installation portion 11.Holder 3 places tool rest 1 top, and holder 3 is provided with through hole 31, and the diameter of this through hole 31 is less than the diameter of screwed hole 12 epimere containing holes 121; The epimere of fishbolt 2 is a head, head down is the slightly little column part of diameter, it is threaded portion that column part extends to hypomere, fishbolt 2 head diameters are greater than the diameter of through hole 31, the column part diameter is less than the diameter of through hole 31, this layout makes and exist specific gap between column part and through hole 31, thereby guarantees that when tightening fishbolt 2 holder 3 can not rotate.Compression spring 4 one ends are installed in the containing hole 121 of screwed hole 12 epimeres, the other end places in the set counterbore in holder 3 bottoms, fishbolt 2 is placed in through hole 31 and the compression spring 4 and with screwed hole 12 and is threaded, when tightening fishbolt 2, the end face of fishbolt 2 heads is higher than the upper surface of holder 3, the radially lower surface of fishbolt 2 heads abuts the radially extensional surface of the correspondence of holder 3, the first central axis C L1 of this fishbolt 2 is parallel to the second central axis C L2 of the center positioning hole 51 of transposition blade 5, the first central axis C L1 of fishbolt 2 extends with included angle 1 with respect to the centre normal CL3 of cutter holder, 1≤10 ° of 7 °≤φ, in this example φ 1 get 8 ° 20 '.The lower surface of holder 3 front ends is provided with downward, intilted column protuberance 33, this column protuberance 33 is suitable for the hole wall adjacency with the center positioning hole 51 of transposition blade 5, and lower surface and column protuberance 33 adjacent positions are to be suitable for and bottom surface, end face location 52 adjacency, smooth 34, transposition blade location.Column protuberance 33 is provided with one section empty avoiding batter post face 331, one section empty avoiding plane 332 and two sections faces of cylinder 333, and empty avoiding plane 332 is connected in empty avoiding batter post face 331 belows, and the face of cylinder 333 forms certain angles with empty avoiding batter post face 331.Two sections faces of cylinder 333 are connected to the both sides on empty avoiding plane 332, when using holder 3 to clamp transposition blade 5, the face of cylinder 333 forms axial line with transposition blade and contacts, and empty avoiding batter post face 331 does not all contact with the hole wall of center positioning hole 51 with empty avoiding plane 332, forms the empty avoiding structure.Tool rest 1 is provided with back protuberance 13, back protuberance 13 has first top incline 131 and first bottom incline 132, the position that holder 3 rear ends and tool rest 1 join is provided with back hook portion 32, back hook portion 32 has second top incline 321 and second bottom incline 322, the back protuberance 13 of tool rest 1 places in the back hook portion 32 of holder 3, when cutter holder clamps transposition blade 5, first top incline 131 of back protuberance 13 contacts cooperation with second top incline 321 of back hook portion 32, when cutter holder unclamps transposition blade 5, first bottom incline 132 of back protuberance 13 contacts cooperation with second bottom incline 322 of back hook portion 32, first top incline 131 of back protuberance 13 is φ 2 with the angle of the first central axis C L1 of fishbolt 2,2≤57 ° of 54 °≤φ, φ 2 gets 55 ° in this example
Operation principle: when transposition blade 5 is installed on cutter holder of the present invention, with retaining pad 7 backing plate 6 is fixed on the blade installation portion 11 of cutter holder 1 earlier, again the front end of holder 3 is placed the state that lifts as shown in Figure 6, transposition blade 5 is placed in the blade installation portion 11, the bottom surface 53 of transposition blade 5 is adjacent to backing plate 6, a pair of adjacent side of transposition blade 5 is contacted with the two side of blade installation portion 11.Be screwed into fishbolt 2 gradually, the head of fishbolt 2 presses down holder 3 gradually, the bottom surface, location 34 of holder 3 front ends is contacted with the location end face 52 of transposition blade 5, and second top incline 321 of the back hook portion 32 of holder 3 contacts with first top incline 131 of the back protuberance 13 of tool rest 1 at this moment.Continue to tighten fishbolt 2, this moment, holder 3 was under the constraint of second top incline 321 and first top incline 131, produce backward, downward moves and a small amount of strain, make the location end face 52 of the 34 pairs of transposition blades 5 in bottom surface, location of holder 3 produce downforce, simultaneously, two sections faces of cylinder 333 of holder 3 front end column protuberances 33 are contacted with the center positioning hole 51 formation axial line of transposition blade 5, and in center positioning hole 51 generations backward the clamping force of contact position to transposition blade 5, the empty avoiding batter post face 331 of holder 3 does not all contact with the center positioning hole 51 of transposition blade 5 with empty avoiding plane 332, form the empty avoiding structure, the clamping force that is applied by two sections faces of cylinder 333 is stable, disperse, evenly, clamping to transposition blade 5 is more solid and reliable, with respect to other tool clamping systems, cutter holder of the present invention has more excellent clamping rigidity and blade transposition precision.Further tighten fishbolt 2, the strain of holder 3 increases, and the chucking power of generation increases, and a pair of adjacent side of final transposition blade 5 and the two side of blade installation portion 11 are adjacent to, the bottom surface 53 and the backing plate 6 of transposition blade 5 are adjacent to, and realize the firm grip of cutter holder to transposition blade 5.Simultaneously, the column protuberance 33 of holder 3 front ends is contained in the center positioning hole 51 of transposition blade 5, can avoid its smear metal that is produced in process of metal working wearing and tearing.Before rotation or the replacing transposition blade 5, need transposition blade 5 is unloaded from cutter holder of the present invention.Unscrew fishbolt 2, under the elastic force effect that makes progress along fishbolt 2 axis that compression spring 4 is produced, holder 3 is lifted and is broken away from the center positioning hole 51 of transposition blade 5 gradually, second bottom incline 322 of back hook portion 32 contacts cooperation with first bottom incline 132 of back protuberance 13, realize the constraint of 1 pair of holder 3 rear end of tool rest, make holder 3 carry out certain rotation, holder 3 front ends and transposition blade 5 upper surfaces are inclined at acute angles, be lifted away from the center positioning hole 51 of transposition blade 5 fully until the column protuberance 33 of holder 3, can realize the transposition and the replacing of transposition blade 5 this moment.In this process, because 1 pair of holder 3 rear end of tool rest have produced constraint, avoided holder 3 double swerves effectively or rotated around fishbolt 2, and, can under the situation of fishbolt 2 of not exclusively outwarding winding, realize the replacing and the transposition of transposition blade 5, save the replacing time of transposition blade 5, improved working (machining) efficiency.
Claims (4)
1, a kind of cutter holder that is used for fixing indexable insert tip, throw away tip, comprise tool rest (1), fishbolt (2) and holder (3), described tool rest (1) is provided with transposition blade installation portion (11), described holder (3) places tool rest (1) top, holder (3) is provided with through hole (31), fishbolt (2) is placed in the through hole (31) and with tool rest (1) and is threaded, be arranged with compression spring (4) on the fishbolt (2), this compression spring (4) is positioned between tool rest (1) and the holder (3), it is characterized in that: the position that described holder (3) rear end and tool rest (1) join is provided with back hook portion (32), the rear end of described tool rest (1) is provided with back protuberance (13), and this back protuberance (13) places in the back hook portion (32) of holder (3).
2, the cutter holder that is used for fixing indexable insert tip, throw away tip according to claim 1, the lower surface that it is characterized in that described holder (3) front end is provided with the column protuberance (33) that is suitable for the hole wall adjacency of transposition blade center positioning hole (51), and the described lower surface position adjacent with column protuberance (33) is for being suitable for and bottom surface, end face (52) location adjacency, smooth (34), transposition blade location.
3, the cutter holder that is used for fixing indexable insert tip, throw away tip according to claim 2, it is characterized in that described column protuberance (33) is provided with one section empty avoiding batter post face (331), one section empty avoiding plane (332) is suitable for forming the face of cylinder (333) that axial line contacts with the hole wall of transposition blade center positioning hole (51) with two sections, empty avoiding plane (332) is connected in empty avoiding batter post face (331) below, and two sections faces of cylinder (333) are connected to the both sides of empty avoiding plane (332).
4, according to each described cutter holder that is used for fixing indexable insert tip, throw away tip in the claim 1 to 3, the back protuberance (13) that it is characterized in that described tool rest (1) has first top incline (131) and first bottom incline (132), the back hook portion (32) of described holder (3) has can contact second top incline (321) that cooperates with first top incline (131), and can contact second bottom incline (322) that cooperates with first bottom incline (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100319026A CN101323026B (en) | 2008-07-28 | 2008-07-28 | Arbor chuck for fixing rotatable knife blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100319026A CN101323026B (en) | 2008-07-28 | 2008-07-28 | Arbor chuck for fixing rotatable knife blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101323026A true CN101323026A (en) | 2008-12-17 |
| CN101323026B CN101323026B (en) | 2010-06-02 |
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ID=40186817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100319026A Active CN101323026B (en) | 2008-07-28 | 2008-07-28 | Arbor chuck for fixing rotatable knife blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101323026B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602112B (en) * | 2009-06-29 | 2010-12-01 | 株洲钻石切削刀具股份有限公司 | Fixed tool holder for indexable insert |
| CN103237619A (en) * | 2010-08-04 | 2013-08-07 | 陶瓷技术有限责任公司 | Cutting tool and cutting insert |
| CN106735364A (en) * | 2017-03-05 | 2017-05-31 | 贵州大学 | A kind of clamping device for fixing rotatable blade |
| CN110914010A (en) * | 2017-07-18 | 2020-03-24 | 伊斯卡有限公司 | Cutting tool body with retaining member for retaining coupling screw and cutting tool |
| CN114762901A (en) * | 2021-01-13 | 2022-07-19 | 株式会社泰珂洛 | Tool body |
-
2008
- 2008-07-28 CN CN2008100319026A patent/CN101323026B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602112B (en) * | 2009-06-29 | 2010-12-01 | 株洲钻石切削刀具股份有限公司 | Fixed tool holder for indexable insert |
| CN103237619A (en) * | 2010-08-04 | 2013-08-07 | 陶瓷技术有限责任公司 | Cutting tool and cutting insert |
| CN103237619B (en) * | 2010-08-04 | 2015-12-16 | 陶瓷技术有限责任公司 | cutting tool and blade |
| CN106735364A (en) * | 2017-03-05 | 2017-05-31 | 贵州大学 | A kind of clamping device for fixing rotatable blade |
| CN110914010A (en) * | 2017-07-18 | 2020-03-24 | 伊斯卡有限公司 | Cutting tool body with retaining member for retaining coupling screw and cutting tool |
| CN110914010B (en) * | 2017-07-18 | 2022-01-28 | 伊斯卡有限公司 | Cutting tool body with retaining member for retaining coupling screw and cutting tool |
| CN114762901A (en) * | 2021-01-13 | 2022-07-19 | 株式会社泰珂洛 | Tool body |
| CN114762901B (en) * | 2021-01-13 | 2024-03-01 | 株式会社泰珂洛 | Tool body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101323026B (en) | 2010-06-02 |
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