CN2045340U - Machine clamping lathe tool with hole-free type blade - Google Patents
Machine clamping lathe tool with hole-free type blade Download PDFInfo
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- CN2045340U CN2045340U CN 89203228 CN89203228U CN2045340U CN 2045340 U CN2045340 U CN 2045340U CN 89203228 CN89203228 CN 89203228 CN 89203228 U CN89203228 U CN 89203228U CN 2045340 U CN2045340 U CN 2045340U
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- blade
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- cutting edge
- mechanically
- positioning key
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Abstract
The utility model discloses a machine clamping lathe tool with a hole-free type blade, comprising a tool body, a blade, a positioning key whose shape is like the Chinese character 'ding', an adjusting screw, a press plate, an eccentric shaft, a threaded stud, etc. The machine clamping lathe tool with the hole-free type blade is characterized in that the combination among the hole-free type blade, the positioning key whose shape is like the Chinese character 'ding' and the threaded stud with a big eccentric cam forms a new positioning, self-locking and clamping structure. The press plates of different blocking chip angles and the front surface of the blade form various left and right machine clamping excircle lathe tools, and the main deviation angles of the breaking chip groove shape and the groove width of the left and right machine clamping excircle lathe tools are 45 DEG, 60 DEG, 75 DEG and 90 DEG. The utility model has the advantages of high reliability, good versatility and easy cutting, and the utilization ratio of the blade reaches 60%. The expense of the tool bit is reduced, and the blade is easy to be regrinded.
Description
The utility model Ventless type blade mechanically-clamped turning tool relates to metal cutting tool.
Indexable tool because of have the operator's of need not self sharpening, the transposing blade rapidly, easily keeps the workpiece size precision and has chip breaking effect preferably to be applied on automatic machine tool, Digit Control Machine Tool, building-block machine, streamline and the transfer matic, to guaranteeing productive temp, the obvious effects of having enhanced productivity.But because himself structural disadvantage makes generally applying of it be subjected to obstacle, the application that is reflected in especially on the engine lathe has many defectives: the chip breaking flute profile of (1) indexable insert tip, throw away tip, groove width is compression moulding, after bigger variation takes place in cutting data, be difficult to guarantee the chip breaking effect of cutter, (2) regrinding blade condition is overcritical, many factories do not have normal regrinding equipment, be difficult to guarantee blade regrinding quality, particularly chip breaking flute profile does not have the regrinding means, (3) locating hole in the middle of the indexable insert tip, throw away tip and the clamping structure of knife bar, limited the adjustable extent of blade, causing the blade utilization rate is 10% only, makes the cutter consumption costs improve (4) indexable insert tip, throw away tip, knife bar specification type is various, and the versatility of cutter and interchangeability are relatively poor, are not easy to use and management.Therefore, present used carbide-tipped lathe tool on the engine lathe is still based on welded type.
Task of the present utility model is the deficiency at existing indexable tool, for society provides a kind of advantage that had both possessed general mechanical clamped cutting tool, relatively suit again on engine lathe, to use, and the blade utilization rate is up to 60%, and Sharpening a knife blade is simple, and Tool in Cutting is brisk, disconnected (volume) bits are reliable, the blade versatility is good, convenient management, the Ventless type blade mechanically-clamped turning tool that the cutter consumption costs can descend at double.
The utility model is to implement like this: Ventless type blade mechanically-clamped turning tool is made up of cutter hub, blade, T-shaped positioning key, adjustment screw and hold-down mechanism, and hold-down mechanism is made up of pressing plate, eccentric shaft stud, packing ring, nut.Its design feature is to adopt the locking device that has the eccentric shaft stud of large eccentricity amount in T-shaped positioning key and the hold-down mechanism to be used as overcoming the locating surface of blade at the horizontal plane intrinsic deflection, reaches the purpose of adjusting blade major cutting edge position by a relatively large margin.
Screw and keyway are arranged on the rake face of cutter head body, the T-shaped positioning key is packed in the keyway of rake face as the locating surface of blade major cutting edge symmetry direction, it is by the promotion of the eccentric cam on the eccentric shaft stud, make T-shaped positioning key do to move, reach the adjusting purpose that the major cutting edge point of a knife resets perpendicular to the major cutting edge direction along the keyway promotion blade of cutter hub.The adjustment screw of cutter head body one side is used to regulate resetting of blade auxiliary-blade.
The T-shaped positioning key has twolip and single-blade, and it has played the retaining effect from keyway direction plane resultant tool force in lathe tool, play self-locking action in order to make T-shaped positioning key in keyway, must the length of fit of choose reasonable key in keyway.
Blade be upper and lower faces parallel, do not drive locating hole, do not open chip-breaker, its anterior angle γ
Ot=0 °, cutting edge inclination λ
St=0 °, blade has double-edged blade and single dege blade, and single dege blade divides left single dege blade and right single dege blade again.The pre-installed double-edged blade of twolip positioning key, the pre-installed single dege blade of single-blade positioning key, the rotatable 180 ° of uses of double-edged blade, also turning 180 ° of uses.Blade is eccentric shaft stud and eccentric cam offset two times in the adjustable extent of major cutting edge direction.
Ventless type blade mechanically-clamped turning tool belongs to decides pressure type mechanically-clamped turning tool on the anterior angle, need not grind chip-breaker on blade, and the various retainings bits angle and the blade front that are had by the bended plate type pressing plate constitute the purpose that various disconnected (volume) bits flute profile reaches disconnected (volume) bits.The position of refacing of blade is blade primary clearance, front clearance and tool arc.
The known angle of this mechanically-clamped turning tool has: tool cutting edge angle K
r, auxiliary angle K
r', anterior angle γ
O, cutting edge inclination λ
s, primary clearance α
O, front clearance α
O'.According to the relation between mechanically-clamped turning tool cutting-tool angle, rake face geometric parameter and the Sharpening a knife blade angle, by the calculating and the formula conversion of relevant formula, can obtain the Sharpening a knife blade angle that can satisfy the cutter predetermined angular has: blade tool cutting edge angle K
Rt, auxiliary angle K
Rt', primary clearance α
Ot, front clearance α
Ot'.
Ventless type blade mechanically-clamped turning tool according to the utility model design, owing to adopted the eccentric shaft stud of large eccentricity amount and the combination of T-shaped positioning key, make under the prerequisite that does not increase tip size, blade is two times of stud offset in the adjustable extent of major cutting edge direction, when the only remaining half of blade, can also normally use, make the utilization rate of blade can reach 60%, and guarantee that blade adjusts to any position and can both reach self-locking.Because not only rotatable 180 ° of double-edged blade, also turning 180 ° of uses, this just relatively makes full use of the alloy and the blade of blade, so the cutting edge utilization rate is very high.According to the cutting ability of machined material, under the prerequisite of constant cutting blade, select the pressing plate at suitable retaining bits angle, can form disconnected (volume) bits groove of different flute profiles, groove width with the blade rake face, guarantee (volume) bits that break reliably in the working angles.The T-shaped positioning key is under the effect of cutting force.Though be subjected to certain back thrust since with the rational length of fit of cutter hub keyway, so can play retaining effect, make the blade clamping reliable and stable from keyway direction thrust.Restriction that the cutting of this mechanically-clamped turning tool is brisk, Sharpening a knife blade is not subjected to appointed condition, versatility is good, be convenient to management, save cutter consumption greatly.
The utility model has following accompanying drawing.
Fig. 1 is cutter structure figure of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is 45 ° of tool cutting edge angles, the knife bar I structure chart 60 °, 75 ° the time.
Fig. 5 is that the A of Fig. 4 is to view.
Knife bar II structure chart when Fig. 6 is 90 ° of tool cutting edge angles.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is the run-in index pressing plate.
Fig. 9 is the vertical view of Fig. 8.
Figure 10 is outer inclined pressing plate.
Figure 11 is the vertical view of Figure 10.
Figure 12 is interior inclined pressing plate.
Figure 13 is the vertical view of Figure 12.
Figure 14 is a twolip T-shaped positioning key.
Figure 15 is a single-blade T-shaped positioning key.
Figure 16 is a double-edged blade.
Figure 17 is the side view of Figure 16.
Figure 18 is right hilted broadsword blade.
Figure 19 is the side view of Figure 18.
Figure 20 is left single dege blade.
Figure 21 is the side view of Figure 20.
Embodiment describes in further detail below in conjunction with accompanying drawing.
With reference to Fig. 1～Fig. 3: Ventless type blade mechanically-clamped turning tool, form by cutter hub (1), blade (2), T-shaped positioning key (7), adjustment screw (5), pressing plate (3), eccentric shaft stud (8), packing ring (6), nut (4).
Cutter hub (1), T-shaped positioning key (7), eccentric shaft stud (8) select for use No. 45 steel or 40cr steel to make.
Cutter hub (1) has a logical screw (10) perpendicular to rake face (13) at rake face (13) middle part with the horizontal established angle of different blades (2), and have one not only perpendicular to rake face (13) but also perpendicular to the keyway (11) of major cutting edge, these keyway (11) one ends communicate with screw (10), and the other end reaches near the major cutting edge.Cutter hub (1) can be made into 45 ° of tool cutting edge angles, 60 °, 75 °, 90 ° knife bar I (12) and knife bar II (15).If the major and minor drift angle of its rake face (13), keyway (11) position and other profiles are oppositely processed, can become tool cutting edge angle and be 45 °, 60 °, 75 °, 90 ° of the same type left cutter.
One of embodiment is that tool cutting edge angle is 45 °, 60 °, 75 ° a knife bar I (12) (Fig. 4, Fig. 5), its rake face (13) anterior angle γ
OgBe 10 °～30 °, cutting edge inclination λ
SgFor-10 °～5 °, as tool cutting edge angle K
RgIn the time of=45 °, auxiliary angle K
Rg'=45 °; Work as K
RgIn the time of=60 °, K
Rg'=30 °; Work as K
RgIn the time of=75 °, K
Rg'=15 °, its nose angle ε
Rg=90 °, primary clearance α
Og=3 °～10 °, front clearance α
Og'=3 °～10 °, these angles all shape in advance.
Two of embodiment is that tool cutting edge angle is 90 ° a knife bar II (15) (Fig. 6, Fig. 7), its rake face (13) anterior angle γ
Og=10 °～30 °, cutting edge inclination λ
Sg=-10 °～5 °, work as K
RgIn the time of=90 °, K
Rg'=8 °～15 °, its nose angle ε
Rg=75 °～82 °, α
Og=3 °～10 °, α
Og'=3 °～10 °, also shape in advance.
T-shaped positioning key (7) is packed in the keyway (11) of knife bar I (12) or knife bar II (15) rake face (13), its back transverse plane is near the eccentric cam (9) of eccentric shaft stud (8), must have being slidingly matched of degree of precision with keyway (11), the service life of key can be prolonged, the positioning accuracy of blade (2) can be improved again at horizontal plane.T-shaped positioning key (7) have twolip T-shaped positioning key (19) (Figure 14) and single-blade T-shaped positioning key (20) (Figure 15), the locating surface angle β of twolip is 55 °～74 °, with 45 ° of tool cutting edge angles, 60 °, 75 ° knife bar I (12) adapted, the locating surface angle β of single-blade is 90 °, with knife bar II (15) adapted of 90 ° of tool cutting edge angles.T-shaped positioning key (7) can make blade (2) major cutting edge reset, and guarantees that blade (2) can reach self-locking under the effect of cutting force.
The material of blade (2) can be that carbide alloy also can be a high-speed steel, and the blade upper and lower faces is parallel, and locating hole is not driven in the centre, and cutting edge does not cut-off (volume) bits groove, anterior angle γ
Ot=0 °, cutting edge inclination λ
St=0 °.Blade (2) divides double-edged blade (21) (Figure 16, Figure 17) and single dege blade.Double-edged blade (21) α
Ot=16 °～35 °, α
OtThere are two blades of symmetry direction in 2 °～11 ° of '=-, rotatable 180 ° or overturn 180 ° and use, because of double-edged blade (21) has the advantage of 180 ° of transpositions, can go up in 45 ° of tool cutting edge angles, left and right six kinds of knife bar I (12) of 60 °, 75 ° and use.The α of single dege blade
Ot=16 °～35 °, α
Ot2 °～11 ° of '=-, can not transposition use, it divides left single dege blade (23) (Figure 20, Figure 21) and right single dege blade (22) (Figure 18, Figure 19) again, it is on 90 ° the left cutter knife bar II (15) that left side single dege blade (23) is used in tool cutting edge angle, and it is on 90 ° the right cutter knife bar II (15) that right single dege blade (22) is used in tool cutting edge angle.The sharpening of blade (2) can focus on and grind major and minor relief angle on dedicated blade grinding machine or the cutter and tool grinding machine, also can on the normal sands turbine, grind, can also not unload bottom knife (2) and just suitably stretch out the blade (2) of clamping on cutter hub (1) and resemble major and minor relief angle and the tool arc that directly grinds cutter the mill welding cutter, and then grind it with oilstone.
The pressing plate of bent plate shape (3) end face has a long through groove can satisfy adjusting needs when compressing, and the distance before and after it between two bearing-surfaces will be subjected to compressing blade (2) behind nut (4) pressure in order to pressing plate (3) a little more than the thickness of blade (2).The material of pressing plate (3) can be made with medium carbon steel or other quenched and tempered steel.Pressing plate (3) need be made the retaining bits angle that meets different golden tangent conditions, and one of embodiment is run-in index pressing plate (16) (Fig. 8, Fig. 9), retaining bits angle P
Br=0 °, two of embodiment is outer inclined pressing plate (17) (Figure 10, Figure 11), retaining bits angle P
Br=8 °～15 °, three of embodiment is interior inclined pressing plate (18) (Figure 12, Figure 13), retaining bits angle P
Br=8 °～15 °, run-in index, outer inclined, three kinds of disconnected (volume) bits of interior inclined flute profile are formed in they and blade (2) front.Pressing plate (3) retaining bits angular position also must have certain abrasion resistance, therefore can weld with carbide alloy or with high-speed steel, tool steel to the postwelding Quenching Treatment, consider the hardness and the wearability at position to be worth doing to improve retaining.
It is 4 millimeters eccentric cam (9) that the two ends rotation direction unanimity of eccentric shaft stud (8), position, intermediate portion have an eccentric throw, and it can make the regulated quantity of blade (2) major cutting edge reach 8 millimeters.Bolt one end is screwed in the screw (10) at knife bar I (12) or knife bar II (15) rake face (13) middle part, and the degree of depth of screw-in is that eccentric cam (9) baseplane is to the distance that keeps two pitch between rake face (13) approximately.Because the centre of stud is cam (9), to guarantee when adjusting rotation that it is principle that cam (9) turns over the right-angle side (14) of not running into knife bar I (12) or knife bar II (15), takes measures and can process partial arc in right-angle side (14).When assembling or adjustment major cutting edge position, the direction that also will pay special attention to rotation eccentric axis stud (8) should be consistent with its hand of spiral, and with the main sword of finger push blade (2), thereby guaranteeing to reach between blade (2), T-shaped positioning key (7), eccentric shaft stud (8) three carries out pressing plate (3) again behind the excellent contact state and compresses, and so just can make blade (2) clamping reliable and stable.
Adjustment screw (5) is configured in cutter hub (1) one side, is used for regulating blade (2) auxiliary-blade and resets.
Claims (7)
1, a kind of Ventless type blade mechanically-clamped turning tool that comprises cutter hub (1), blade (2), adjustment screw (5), hold-down mechanism is characterized in that:
A, described cutter hub (1) head have a rake face (13) that blade (2) is installed, and vertical with it screw (10) is arranged on the rake face (13), and have one communicate with screw (10), not only perpendicular to rake face (13) but also perpendicular to the keyway (11) of major cutting edge,
T-shaped positioning key (7) as the main sword symmetry direction of blade (2) locating surface is housed in the keyway (11) of b, cutter hub (1) rake face (13),
C, described blade (2) be upper and lower faces parallel, do not drive locating hole, the cutting edge place does not open chip-breaker, its anterior angle γ
Ot=0 °, cutting edge inclination λ
St=0 °.
2, mechanically-clamped turning tool as claimed in claim 1 is characterized in that cutter hub (1) is tool cutting edge angle K
RgBe 45 °, 60 °, 75 ° knife bar I (12) or tool cutting edge angle K
RgIt is 90 ° knife bar II (15).
3, mechanically-clamped turning tool as claimed in claim 1 is characterized in that T-shaped positioning key (7) is twolip T-shaped positioning key (19) or single-blade T-shaped positioning key (20).
4, mechanically-clamped turning tool as claimed in claim 1 is characterized in that blade (2) can be double-edged blade (21) or single dege blade, and single dege blade can be again left single dege blade (23) or right single dege blade (22).
5, mechanically-clamped turning tool as claimed in claim 1 is characterized in that the hold-down mechanism of this lathe tool is made up of pressing plate (3), eccentric shaft stud (8), packing ring (6), nut (4).
6, as claim 1 or 5 described mechanically-clamped turning tools, it is characterized in that described pressing plate (3) is a bended plate type, have run-in index pressing plate (16) P
Br=0 °, outer inclined pressing plate (17) P
Br=8 °～15 °, interior inclined pressing plate (18) P
BrThe retaining bits angle of disconnected (volume) bits flute profile of=8 °～15 °.
7,, it is characterized in that eccentric shaft stud (8) is to be configured in cutter hub (1) rake face (13) screw (10), and have large eccentricity cam (9) as claim 1 or 5 described mechanically-clamped turning tools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89203228 CN2045340U (en) | 1989-03-18 | 1989-03-18 | Machine clamping lathe tool with hole-free type blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89203228 CN2045340U (en) | 1989-03-18 | 1989-03-18 | Machine clamping lathe tool with hole-free type blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2045340U true CN2045340U (en) | 1989-10-04 |
Family
ID=4860824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89203228 Withdrawn CN2045340U (en) | 1989-03-18 | 1989-03-18 | Machine clamping lathe tool with hole-free type blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2045340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872462B (en) * | 2006-03-11 | 2010-05-12 | 张邦南 | Multiple duplicatus grinding type turnable cutter |
| CN103143780A (en) * | 2011-12-06 | 2013-06-12 | 苏州维赛克阀门检测技术有限公司 | Cutting tool |
| CN101583452B (en) * | 2006-11-07 | 2013-07-17 | 瓦莱尼特有限责任公司 | Final adjustment mechanism with tactile feedback |
-
1989
- 1989-03-18 CN CN 89203228 patent/CN2045340U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872462B (en) * | 2006-03-11 | 2010-05-12 | 张邦南 | Multiple duplicatus grinding type turnable cutter |
| CN101583452B (en) * | 2006-11-07 | 2013-07-17 | 瓦莱尼特有限责任公司 | Final adjustment mechanism with tactile feedback |
| CN103143780A (en) * | 2011-12-06 | 2013-06-12 | 苏州维赛克阀门检测技术有限公司 | Cutting tool |
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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 |