CN201500789U - Blade clamp for fixing indexable blade - Google Patents
Blade clamp for fixing indexable blade Download PDFInfo
- Publication number
- CN201500789U CN201500789U CN2009200661507U CN200920066150U CN201500789U CN 201500789 U CN201500789 U CN 201500789U CN 2009200661507 U CN2009200661507 U CN 2009200661507U CN 200920066150 U CN200920066150 U CN 200920066150U CN 201500789 U CN201500789 U CN 201500789U
- Authority
- CN
- China
- Prior art keywords
- holder
- blade
- tool rest
- throw away
- indexable insert
- 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 - Lifetime
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Abstract
The utility model discloses a blade clamp for fixing an indexable blade, which comprises a blade seat, a clamping bolt and a clamping part, wherein an indexable blade mounting part and a bolt mounting hole are arranged on the blade seat, the clamping part is arranged above the blade seat, a through hole is formed on the clamping part, the clamping bolt is sheathed in the through hole and in threaded connection with the bolt mounting hole, a compression spring is sheathed on the clamping bolt, the compression spring is positioned between the blade seat and the clamping part, a clamping part matching inclined plane which is connected with the blade seat is arranged at the rear end of the clamping part, a pair of rear protruding parts are arranged on two sides of the clamping part matching inclined plane, a blade seat matching inclined plane which is connected with the clamping part is arranged at the rear end of the blade seat, a pair of accommodating grooves are arranged on the blade seat matching inclined plane, and the rear protruding parts are accommodated in the accommodating grooves. The blade clamp for fixing the indexable blade has the advantages of conducting guiding and position-limiting on the clamping part during the mounting process of the blade, and leading the clamping and the positioning of the blade to be more precise and firmer.
Description
Technical field
The utility model relates to the machine cut process technology, relates 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 cutter holder that is used for fixing indexable insert tip, throw away tip now has various ways, for example, the patent No. is that the utility model patent of ZL95193314.0 discloses a kind of cutter holder that is used for fixing Indexable insert, during the clamping device clamping blade of this cutter holder, there are not effective stopping means and holder to move guiding device between holder and the tool rest, friction between fishbolt and the holder can cause the holder left-right rotation, makes blade produce skew probably, influences the accurate location of blade; And, 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, cause contacting points position stress to concentrate, blade discontinuity, blade have along the stress point trend of breaking, and may produce the unsettled phenomenon of whole tooling system.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of and in the blade installation process holder is led with spacing, makes the accurate more firm cutter holder that is used for fixing indexable insert tip, throw away tip in clamping location of blade.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
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 indexable insert tip, throw away tip installation portion and bolt mounting holes, described holder places the tool rest top, holder is provided with through hole, fishbolt is placed in the through hole, and be threaded with bolt mounting holes, be arranged with the compression spring on the fishbolt, this compression spring is between tool rest and holder, the holder that described holder rear end is provided with tool rest joins cooperates the inclined plane, described holder cooperates the both sides on inclined plane to be provided with a pair of back protuberance, the tool rest that described tool rest rear end is provided with holder joins cooperates the inclined plane, and described tool rest cooperates the inclined plane to be provided with a pair of containing groove, and described back is outstanding to be deployed in containing groove.
Described back protuberance is the square shoulder shape, and described containing groove is a strip, and the magnitude relationship of back protuberance and containing groove satisfies 0.15mm＜W-L＜0.5mm, and 0.5mm＜L
1-W
1＜1mm, wherein W
1Be the width of back protuberance, W is the distance between the protuberance of a pair of back, L
1Be the width of containing groove, L is the distance between a pair of containing groove.
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 adjacent with the column protuberance, described holder front end lower surface place is provided with and is suitable for forming the cushion part that line contacts with transposition blade location end face.
Described column protuberance is provided with two sections and is suitable for forming the oblique circular cylinder face that axial line contacts with the hole wall of transposition blade center positioning hole, and described oblique circular cylinder face becomes the β angle to extend 3 °≤β≤5 ° with the axis of through hole.
Compared with prior art, advantage of the present utility model is: the holder of holder cooperates the both sides on inclined plane to be provided with a pair of back protuberance that inwardly extends downwards, the tool rest of tool rest cooperates the inclined plane to be provided with a pair of containing groove that inwardly extends downwards, the back is outstanding to be deployed in containing groove, in the blade installation process by cooperating between back protuberance and the containing groove, the mobile of holder led, and it is spacing to holder when clamping blade, make the clamping of blade more firm, locate more precisely, improved the precision of blade resetting; Simultaneously in the process of dismounting and change blade, under the elastic force effect of containing groove and back protuberance mating reaction and compression spring, can avoid the holder double swerve effectively or rotated around fishbolt, and, can under the situation of the fishbolt of not exclusively outwarding winding, can realize the replacing and the transposition of indexable insert tip, throw away tip, save the replacing time of blade, improved working (machining) efficiency.Back protuberance is the square shoulder shape, containing groove is strip, the length direction of the two is consistent with the moving direction that holder clamps in the transposition blade process, when screwing the fastening blade of fishbolt, the back is outstanding to be deployed in containing groove, and holder moves with respect to tool rest backward along containing groove, simultaneously by under back protuberance and the containing groove acting in conjunction, be not offset between holder and the tool rest, effectively holder is carried out spacing, firm, the accurate location of realizing the holder blade.On the lower surface of holder front end, be provided with the column protuberance, the position adjacent with the column protuberance, holder front end lower surface place is provided with cushion part, the cushion part of holder realizes that with transposition blade location end face line contacts when clamping blade, avoid the periphery of blade center's locating hole stress concentration point to occur, effectively reduce the trend of breaking of blade center's locating hole peripheral position.Be provided with two sections oblique circular cylinder faces on the column protuberance, when using holder to clamp transposition blade, the oblique circular cylinder face forms axial line with transposition blade and contact, formation empty avoiding structure between two places' lines contact, make the Kong Chu of blade center more stable be subjected to backward tension.
Description of drawings
Fig. 1 is a fractionation structural representation of the present utility model;
Fig. 2 is the utility model holder clamped condition cross section view;
Fig. 3 is the utility model holder releasing orientation cross section view;
Fig. 4 is the plan structure schematic diagram of the utility model tool rest;
Fig. 5 is the perspective view of the utility model holder;
Fig. 6 is the side view of the utility model holder;
Fig. 7 is the upward view of the utility model holder.
Each label is represented among the figure:
1, tool rest; 2, fishbolt; 3, holder; 4, compression spring; 5, indexable insert tip, throw away tip; 6, backing plate; 7, retaining pad; 11, indexable insert tip, throw away tip installation portion; 12, bolt mounting holes; 13, tool rest cooperates the inclined plane; 14, backing plate locating hole; 15, sidewall; 16, containing groove; 21, driving hole; 31, compression spring containing hole; 32, through hole; 33, column protuberance; 34, holder cooperates the inclined plane; 35, back protuberance; 36, cushion part; 37, oblique circular cylinder face; 51, center positioning hole; 52, location end face; 53, bottom surface, location; 61, centre bore; 121, containing hole; 122, thread segment; M1, first central axis; M2, second central axis; M3, centre normal.
The specific embodiment
The utility model relates to the cutter holder that is used for fixing indexable insert tip, throw away tip, be applicable to fixedly indexable insert tip, throw away tips 5 such as rhombus, rhomboid and triangle, such indexable insert tip, throw away tip 5 can be made by Hardmetal materials or ceramic material, has a smooth bottom surface, location 53, a location end face 52 and a center positioning hole 51.Below to be applicable to that fixedly the cutter holder of rhombus transposition blade is that example is described in further detail the technical solution of the utility model.
To shown in Figure 7, the cutter holder that is used for fixing indexable insert tip, throw away tip of the present utility model 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 the indexable insert tip, throw away tip installation portion 11 and the bolt mounting holes 12 of indexable insert tip, throw away tip 5, bolt mounting holes 12 epimeres are containing hole 121, hypomere is a thread segment 122, the angle of indexable insert tip, throw away tip installation portion 11 two sides is according to the shape setting of the indexable insert tip, throw away tip 5 of clamping, indexable insert tip, throw away tip installation portion 11 bottom surfaces are provided with backing plate locating hole 14, backing plate 6 places on the bottom surface of indexable insert tip, throw away tip installation portion 11, and engage with indexable insert tip, throw away tip installation portion 11 two sides 15, retaining pad 7 passes the centre bore 61 of backing plate 6 and places in the backing plate locating hole 14 of indexable insert tip, throw away tip installation portion 11, play the effect that backing plate 6 is fixed, indexable insert tip, throw away tip 5 places on the backing plate 6, and two adjacent sidewalls of indexable insert tip, throw away tip 5 engage with the two side 15 of indexable insert tip, throw away tip installation portion 11.Holder 3 places tool rest 1 top, and holder 3 is provided with through hole 32, and through hole 32 lower ends are compression spring containing hole 31, compression spring 4 is sheathed on the fishbolt 2, and between tool rest 1 and holder 3, compression spring 4 lower ends place in the containing hole 121, and the upper end places in the compression spring containing hole 31.Holder 3 rear ends are provided with the holder that joins with tool rest 1 and cooperate inclined plane 34, holder cooperates the both sides on inclined plane 34 to be provided with a pair of back protuberance 35 that inwardly extends downwards, tool rest 1 rear end is provided with the tool rest that joins with holder 3 and cooperates inclined plane 13, tool rest cooperates inclined plane 13 to be provided with a pair of containing groove 16 that inwardly extends downwards, when cutter holder clamps indexable insert tip, throw away tip 5, tool rest cooperates inclined plane 13 and holder to cooperate inclined plane 34 to contact cooperation, back protuberance 35 places in the containing groove 16, by cooperating between back protuberance 35 and the containing groove 16, bootable holder 3 moves with respect to tool rest 1 backward along containing groove 16, and it is spacing to holder 3 when clamping blade, restriction holder 3 rotates when clamping or unclamping blade, make the clamping of blade more firm, locate more precisely, improved the precision of blade resetting.Fishbolt 2 is placed in the containing hole 121 of through hole 32 and bolt mounting holes 12, and be threaded with the thread segment 122 of bolt mounting holes 12, 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 bottom end face, fishbolt 2 head diameters are greater than through hole 32 diameters of holder 3, the column part diameter is less than the diameter of through hole 32, when tightening fishbolt 2, the end face of fishbolt 2 heads is higher than the upper surface of holder 3, this set makes and exist specific gap between column part and through hole 32, thereby guarantees that when tightening fishbolt 2 holder 3 can not rotate easily.The first central axis M1 of this fishbolt 2 is parallel to the second central axis M2 of the center positioning hole 51 of indexable insert tip, throw away tip 5, the first central axis M1 of fishbolt 2 extends with angle α with respect to the centre normal M3 of cutter holder, 7 °≤α≤10 °, in the present embodiment α get 8 ° 23 '.Fishbolt 2 heads and bottom are equipped with driving hole 21, can realize from tool rest 1 bottom or top holder 3 being loaded and unloaded, and make the clamping of blade and dismantle more flexible and convenient.In the present embodiment, back protuberance 35 on the holder 3 is the square shoulder shape, containing groove 16 on the tool rest 1 is a strip, and the two length direction is consistent with the moving direction that holder 3 clamps in indexable insert tip, throw away tip 5 processes, back protuberance 35 satisfies 0.15mm＜W-L＜0.5mm with the magnitude relationship of containing groove 16, and 0.5mm＜L
1-W
1＜1mm, wherein W
1Be the width of back protuberance 35, W is the distance between the protuberance 35 of a pair of back, L
1Be the width of containing groove 16, L is the distance between a pair of containing groove 16.In the present embodiment, W-L=0.2mm, L
1-W
1=0.6mm.This set guarantees that back protuberance 35 and containing groove 16 keep specific matching relationship, when screwing the fastening indexable insert tip, throw away tip 5 of fishbolt 2, the back protuberance 35 of holder 3 places in the containing groove 16, therefore, even under the frictional force effect of fishbolt 2 heads, holder 3 can not produce yet and deflect or rotate, protuberance 35 is mobile backward with respect to tool rest 1 subsequently but the containing groove 16 that is strip can allow holder 3 again, effectively 3 pairs of indexable insert tip, throw away tips 5 of guide clip gripping member are accurately located, and realize the accurate clamping of indexable insert tip, throw away tip 5.The front end lower surface of holder 3 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 indexable insert tip, throw away tip 5, column protuberance 33 is provided with two sections oblique circular cylinder faces 37, oblique circular cylinder face 37 becomes the β angle to extend with the axis of through hole 32,3 °≤β≤5 °, β gets 3 ° in the present embodiment.When using holder 3 to clamp indexable insert tip, throw away tips 5, oblique circular cylinder face 37 contacts with transposition blade formation axial line, make 51 places, blade center hole more stable be subjected to backward tension.Holder 3 lower surfaces and column protuberance 33 adjacent positions are provided with and are suitable for forming the cushion part 36 that lines contact with transposition blade location end face 52, this cushion part 36 is for being similar to leg-of-mutton boss, and extend to tool rest 1 both sides by column protuberance 33 edges, avoid the peripheral position in blade center hole 51 simultaneously, when tightening fishbolt 2, this set guarantees that the location end face 52 of indexable insert tip, throw away tip 5 is subjected to downward clamping pressure, and cushion part 36 contacts with the line that location end face 52 forms sufficient length, avoid the edge of the center positioning hole 51 of blade stress concentration point to occur, effectively reduce the trend of breaking of center positioning hole 51 peripheral positions, make the cushion part 36 of holder 3 bigger, realize that cushion part 36 is evenly stressed with the location end face 52 of blade with location end face 52 contacts area of blade.
Operation principle: when indexable insert tip, throw away tip 5 is installed on the cutter holder that is used for fixing indexable insert tip, throw away tip of the present utility model, with retaining pad 7 backing plate 6 is fixed on the indexable insert tip, throw away tip installation portion 11 of tool rest 1 earlier, compression spring 4 is placed in the containing hole 121 of bolt mounting holes 12, holder 3 is placed tool rest 1 top, and will compress spring 4 and place in the compression spring containing hole 31, the thread segment 122 that again fishbolt 2 is passed holder 3 and compression spring 4 and bolt mounting holes 12 is engaged to the state that lifts as shown in Figure 3, indexable insert tip, throw away tip 5 is placed in the indexable insert tip, throw away tip installation portion 11, the bottom surface, location 53 of indexable insert tip, throw away tip 5 is adjacent to backing plate 6, a pair of adjacent side of indexable insert tip, throw away tip 5 is contacted with the two side 15 of indexable insert tip, throw away tip installation portion 11.Be screwed into fishbolt 2 gradually, the head of fishbolt 2 presses down holder 3 gradually, compression spring 4 is compressed clamping, the back protuberance 35 of holder 3 places in the containing groove 16 of tool rest 1, the cushion part 36 of holder 3 front ends contacts with the location end face 52 of indexable insert tip, throw away tip 5 simultaneously, this moment, the holder on the holder 3 cooperated inclined plane 34 to contact with tool rest cooperation inclined plane 13 on the tool rest 1, in this process, holder 3 is under the fiting constraint of tool rest containing groove 16 and back protuberance 35, generation, is limited to move or only produce insignificant along containing groove 16 widths with respect to the indexable insert tip, throw away tip installation portion 11 of tool rest 1 moving backward along containing groove 16 length directions simultaneously, micro displacement and deflection.Continue to tighten fishbolt 2, this moment, holder 3 cooperated under 34 constraints of inclined plane at holder, produce backward, downward moves and a small amount of strain, make the location end face 52 of 36 pairs of indexable insert tip, throw away tips 5 of cushion part of holder 3 front ends produce downward pressure, simultaneously, two sections oblique circular cylinder faces 37 of the column protuberance 33 of holder 3 are contacted with the center positioning hole 51 formation axial line of indexable insert tip, throw away tip 5, and in center positioning hole 51 generations backward the clamping force of contact position to indexable insert tip, throw away tip 5, the clamping force that is applied by two sections oblique circular cylinder faces 37 is stable, disperse, evenly, clamping to indexable insert tip, throw away tip 5 is more solid and reliable, with respect to other tool clamping systems, the cutter holder that is used for fixing indexable insert tip, throw away tip of the present utility model has more excellent clamping rigidity and blade transposition precision.Further tighten fishbolt 2, the strain of holder 3 increases, the chucking power that produces increases, the a pair of adjacent side of final indexable insert tip, throw away tip 5 and the two side 15 of indexable insert tip, throw away tip installation portion 11 are adjacent to, the bottom surface, location 53 and the backing plate 6 of indexable insert tip, throw away tip 5 are adjacent to, and realize the firm grip of cutter holder to indexable insert tip, throw away tip 5.Simultaneously, the column protuberance 33 of holder 3 front ends is contained in the center positioning hole 51 of indexable insert tip, throw away tip 5, can avoid its smear metal that is produced in process of metal working wearing and tearing.Transposition is used indexable insert tip, throw away tip 5 or is changed before the indexable insert tip, throw away tip 5, need indexable insert tip, throw away tip 5 is unloaded from tool rest 1, 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 indexable insert tip, throw away tip 5 gradually, the holder of holder 3 cooperates inclined plane 34 to cooperate inclined plane 13 to break away from the tool rest of tool rest 1, back protuberance 35 and containing groove 16 effect of cooperatively interacting, holder 3 is lifted away to state shown in Figure 3, the column protuberance 33 of holder 3 is lifted away from the center positioning hole 51 of indexable insert tip, throw away tip 5 fully, and can realize the transposition or the replacing of indexable insert tip, throw away tip 5 this moment.In this process, under the elastic force effect of containing groove 16 and back protuberance 35 mating reactions and compression spring 4, can avoid holder 3 double swerves effectively or rotated around fishbolt 2, and, can under the situation of fishbolt 2 of not exclusively outwarding winding, can realize the replacing and the transposition of indexable insert tip, throw away tip 5, save the replacing time of blade, improved working (machining) efficiency.
The foregoing description only is a preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from principle of the present utility model; can also make some equivalents, these equivalents all should be considered as protection domain of the present utility model.
Claims (4)
1. 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 indexable insert tip, throw away tip installation portion (11) and bolt mounting holes (12), described holder (3) places tool rest (1) top, holder (3) is provided with through hole (32), fishbolt (2) is placed in the through hole (32), and be threaded with bolt mounting holes (12), 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: described holder (3) rear end is provided with the holder that joins with tool rest (1) and cooperates inclined plane (34), described holder cooperates the both sides on inclined plane (34) to be provided with a pair of back protuberance (35), described tool rest (1) rear end is provided with the tool rest that joins with holder (3) and cooperates inclined plane (13), described tool rest cooperates inclined plane (13) to be provided with a pair of containing groove (16), and described back protuberance (35) places in the containing groove (16).
2. the cutter holder that is used for fixing indexable insert tip, throw away tip according to claim 1, it is characterized in that: described back protuberance (35) is the square shoulder shape, described containing groove (16) is a strip, back protuberance (35) satisfies 0.15mm＜W-L＜0.5mm with the magnitude relationship of containing groove (16), and 0.5mm＜L
1One W
1＜1mm, wherein W
1Be the width of back protuberance (35), W is the distance between a pair of back protuberance (35), L
1Be the width of containing groove (16), L is the distance between a pair of containing groove (16).
3. the cutter holder that is used for fixing indexable insert tip, throw away tip according to claim 1 and 2, it is characterized in that: the lower surface of 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 position adjacent with column protuberance (33), described holder (3) front end lower surface place is provided with and is suitable for forming the cushion part (36) that line contacts with transposition blade location end face (52).
4. the cutter holder that is used for fixing indexable insert tip, throw away tip according to claim 3, it is characterized in that: described column protuberance (33) is provided with two sections and is suitable for forming the oblique circular cylinder face (37) that axial line contacts with the hole wall of transposition blade center positioning hole (51), described oblique circular cylinder face (37) becomes the β angle to extend 3 °≤β≤5 ° with the axis of through hole (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200661507U CN201500789U (en) | 2009-09-30 | 2009-09-30 | Blade clamp for fixing indexable blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200661507U CN201500789U (en) | 2009-09-30 | 2009-09-30 | Blade clamp for fixing indexable blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201500789U true CN201500789U (en) | 2010-06-09 |
Family
ID=42451731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200661507U Expired - Lifetime CN201500789U (en) | 2009-09-30 | 2009-09-30 | Blade clamp for fixing indexable blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201500789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658700A (en) * | 2013-11-29 | 2014-03-26 | 成都斯锐特钨钢刀具有限公司 | Mounting structure with function of improving cutter compressing effect |
| CN106735364A (en) * | 2017-03-05 | 2017-05-31 | 贵州大学 | A kind of clamping device for fixing rotatable blade |
-
2009
- 2009-09-30 CN CN2009200661507U patent/CN201500789U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658700A (en) * | 2013-11-29 | 2014-03-26 | 成都斯锐特钨钢刀具有限公司 | Mounting structure with function of improving cutter compressing effect |
| CN106735364A (en) * | 2017-03-05 | 2017-05-31 | 贵州大学 | A kind of clamping device for fixing rotatable blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100609 Effective date of abandoning: 20090930 |