CN2102810U - Compound wedge type regrindable hard alloy cutter - Google Patents
Compound wedge type regrindable hard alloy cutter Download PDFInfo
- Publication number
- CN2102810U CN2102810U CN 91225589 CN91225589U CN2102810U CN 2102810 U CN2102810 U CN 2102810U CN 91225589 CN91225589 CN 91225589 CN 91225589 U CN91225589 U CN 91225589U CN 2102810 U CN2102810 U CN 2102810U
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- wedge
- shaped slot
- cutter
- blade
- angle
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Abstract
The utility model discloses a compound wedge type hard alloy cutter capable of regrinding, particularly a turning tool. The front end face of the cutter bar of the cutter is processed out a wedge groove, the upper end face and the lower end face wedge angle of the vertical section of the wedge groove are alpha 1, and the wedge angle of the transect of the wedge groove is alpha 2. The assembly of a cutter shim, a cutter blade and a chip breaking block is corresponding to the wedge groove. When the cutting proceeds with the cutter, the cutter element can generate elastic deformation by means of the function of cutting force, thereby, wedging by friction force. The utility model has the advantages of simple structure, convenient assembly and disassembly, good chip cutting fluidity, etc.
Description
The utility model relates to metal cutting tool, particularly lathe tool.
The mechanical grip of existing carbide-tipped lathe tool blade, having a kind of is presser type, mainly is made up of knife bar, edge bearing, blade, pressing plate and trip bolt.The through hole that screw passes on the pressing plate is screwed in the screw of knife bar, and blade pressing in the knife bar front upper place, can be had edge bearing therebetween.This clamping mode complex structure, the loading and unloading blade is time-consuming, influences the raising of productivity ratio, and blade need grind chip-breaker, is subjected to the restriction of indexable insert tip, throw away tip chip breaking grooved, nose angle pattern.In addition, because the existence of pressing plate, it is not smooth that smear metal is flowed out.
The purpose of this utility model is, provides that a kind of clamping structure is simple, the simple load and unload composite wedge compact form of blade hard alloy cutter.
The utility model is to realize like this.This cutter comprises knife bar, edge bearing, blade, chip breaking piece.It is without pressing plate and trip bolt, but processes wedge-shaped slot at the knife bar front end face.The angle of wedge of the upper and lower end face of wedge-shaped slot vertical section (being the cross section of knife bar) is α 1, and notch is vertically pre-large post-small; The angle of wedge of the cross section of wedge-shaped slot (being the knife bar vertical section) upper and lower end is α 2, and is big outer little in notch is horizontal.The superimposed from bottom to up assembly of edge bearing, blade, chip breaking piece three that is contained in the knife bar wedge-shaped slot cooperates with wedge-shaped slot, and corresponding two angles of wedge also are α 1 and α 2.When carrying out machining with this cutter, axially cutting is divided into Fa and radial cutting and is divided into Fr and makes edge bearing, blade, chip breaking piece three's assembly and knife bar wedge-shaped slot generation certain elastic deformation, thus the frictionally wedging.
Below by embodiment the utility model is done further detailed narration.
Description of drawings
Accompanying drawing 1 is the cutter front view
Accompanying drawing 2 is the cutter vertical view
Accompanying drawing 3 is the B-B cutaway view of Fig. 2
Accompanying drawing 4 is that the A of Fig. 2 is to revolved view
Accompanying drawing 5 is the C-C section of Fig. 2
Knife bar (1) (seeing accompanying drawing 4) front end face processes wedge-shaped slot, and upper surface (D) is α 1(wedge-shaped slot vertical section with the angle of wedge of lower surface (C)) and α 2(wedge-shaped slot cross section, see Fig. 5).Notch is vertically pre-large post-small; It is big outer little in notch is horizontal.The edge bearing (3), blade (6), chip breaking piece (4) three that are contained in the knife bar wedge-shaped slot are overlapped into assembly from bottom to up and match with wedge-shaped slot, and the corresponding angle of wedge also is α 1 and α 2.α 1 and α are 3 °～15 ° for 2 jiaos.0 °～10 ° of the angles of lower surface and knife bar bottom surface.
Can add between the lower surface of edge bearing (3) and the wedge-shaped slot and adjust pad (5).
Engrail can be done in the rear portion of chip breaking piece (4) bottom surface, and the rear portion, upper surface of edge bearing (3) processes monodentate, and monodentate embeds in the teeth groove of sawtooth; The front portion of edge bearing (3) upper surface processes shoulder, and the rear end of blade (6) contacts with shoulder.By the relative position (be monodentate embed different kerf) of the monodentate on the change edge bearing (3) with sawtooth, can adjust the distance W n between chip breaking piece (4) front end and blade (6) main cutting edge, to adapt to the chip breaking requirement of different workpieces material, different cutting datas.
The adjustment of above Wn also can be adopted the scheme of adjusting screw (2).Adjust screw (2) by the screw in the edge bearing (3), head of screw is contacted with the rear end face of blade (6).By changing the degree of depth that is screwed into of adjusting screw (2), change the distance W n between chip breaking piece (4) front end and blade (6) main cutting edge.
The offset angle β w of chip breaking piece (4) and front end face angle of wedge β n(see Fig. 2,3) through the sharpening adjustment, to adapt to the control requirement of workpiece unlike material, different cutting data to chip-flowing.Blade (4) need not grind chip-breaker.
When carrying out machining, axially cut component Fa and radial cutting component Fr(sees Fig. 2 with this cutter) make edge bearing, blade, chip breaking piece and knife bar wedge-shaped slot produce certain elastic deformation, thus clamp securely.At non-cutting state, clamping force is little, during dismounting, only needs can take off all components in the end face gentle force of knife bar.
The tool cutting edge angle Kr of this cutter, auxiliary angle, anterior angle γ, relief angle α, blade inclination angle λ s, the high h1(of point of a knife see Fig. 1～4), identical with regular turning tool, desirable different numerical value, thus can be made into serial cutter.
The utility model is compared with existing cutter, has the following advantages:
1. need not add the mechanical force clamping blade, rely on cutting force, make cutting element produce strain, thus clamping blade.
2. simple in structure, mounting or dismounting are convenient.
3. blade need not grind chip-breaker, thereby limited blade is not subjected to the restriction of chip breaking grooved and point of a knife fillet pattern.
4. chip flow is good.
5. blade can repeat sharpening and use the stock utilization height.
6. can obtain bigger cutting anterior angle, be particularly useful for the cutting of steel material.
Claims (7)
1, a kind of metal cutting tool, it comprises knife bar (1), edge bearing (3), blade (6), chip breaking piece (5), edge bearing (3) is contained in the knife bar (1), blade (6) is positioned on the edge bearing, chip breaking piece (5) is contained in blade (6) top, it is characterized in that, described knife bar (1) front end face processes wedge-shaped slot, on the described wedge-shaped slot vertical section, the angle of wedge of lower surface is α 1, on, the angle of wedge of lower surface in the cross section is α 2, and wedge-shaped slot is vertically pre-large post-small, and be big outer little in wedge-shaped slot is horizontal, be contained in the edge bearing (3) in the wedge-shaped slot, blade (6), the assembly that chip breaking piece (5) three is overlapped into from top to bottom matches with wedge-shaped slot, and the corresponding angle of wedge also is α 1 and α 2.
2, according to the said cutter of claim 1, it is characterized in that having one to adjust pad (5) between the lower surface of edge bearing (3) and the wedge-shaped slot.
3, according to claim 1 or 2 said cutters, it is characterized in that the rear portion of said chip breaking piece (4) bottom surface is a zigzag, there is a monodentate upper surface of edge bearing (3), monodentate embeds in the teeth groove of said sawtooth, and the rear end of blade (6) contacts with the shoulder of edge bearing (3) front portion, upper surface.
According to claim 1 or 2 said cutters, it is characterized in that 4, said edge bearing (3) has a screw, adjust screw (2), adjust the head of screw of screw (2) and the back end in contact of blade (6) by said screw.
According to claim 1,2 said cutters, it is characterized in that 5, said locking angle 1 and α 2 are 3 °～15 °, wedge-shaped slot lower surface and knife bar bottom surface angle are 0 °～10 °.
According to the said cutter of claim 3, it is characterized in that 6, said locking angle 1 and α 2 are 3 °～15 °, wedge-shaped slot lower surface and knife bar bottom surface angle are 0 °～10 °.
According to the said cutter of claim 4, it is characterized in that 7, said locking angle 1 and α 2 are 3 °～15 °, wedge-shaped slot lower surface and knife bar bottom surface angle are 0 °～10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225589 CN2102810U (en) | 1991-09-29 | 1991-09-29 | Compound wedge type regrindable hard alloy cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225589 CN2102810U (en) | 1991-09-29 | 1991-09-29 | Compound wedge type regrindable hard alloy cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2102810U true CN2102810U (en) | 1992-04-29 |
Family
ID=4931838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91225589 Granted CN2102810U (en) | 1991-09-29 | 1991-09-29 | Compound wedge type regrindable hard alloy cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2102810U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047969C (en) * | 1993-11-19 | 2000-01-05 | 伊斯卡有限公司 | Clamping device for a cutting insert |
| CN103350370A (en) * | 2013-06-25 | 2013-10-16 | 洛阳德平机械设备有限公司 | Method and device for adjusting cutter bar of pipe end facing machine by wedged iron |
| CN106513728A (en) * | 2016-12-23 | 2017-03-22 | 盐城工学院 | Inner hole groove cutting tool |
| CN106583773A (en) * | 2016-12-23 | 2017-04-26 | 盐城工学院 | General inner hole cutting tool |
-
1991
- 1991-09-29 CN CN 91225589 patent/CN2102810U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047969C (en) * | 1993-11-19 | 2000-01-05 | 伊斯卡有限公司 | Clamping device for a cutting insert |
| CN103350370A (en) * | 2013-06-25 | 2013-10-16 | 洛阳德平机械设备有限公司 | Method and device for adjusting cutter bar of pipe end facing machine by wedged iron |
| CN106513728A (en) * | 2016-12-23 | 2017-03-22 | 盐城工学院 | Inner hole groove cutting tool |
| CN106583773A (en) * | 2016-12-23 | 2017-04-26 | 盐城工学院 | General inner hole cutting tool |
| CN106513728B (en) * | 2016-12-23 | 2018-04-13 | 盐城工学院 | A kind of internal bore groove cutting element |
| CN106583773B (en) * | 2016-12-23 | 2018-10-19 | 盐城工学院 | A kind of universal endoporus cutting element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |