CN103785866A

CN103785866A - Cutting insert assembly and components thereof

Info

Publication number: CN103785866A
Application number: CN201310519888.5A
Authority: CN
Inventors: N·J·亨利; 陈实; K·P·米兹加利斯基
Original assignee: Kennametal Inc
Current assignee: Kennametal Inc
Priority date: 2012-10-31
Filing date: 2013-10-29
Publication date: 2014-05-14
Also published as: DE102013111771A1; SE1351290A1

Abstract

A cutting assembly that includes a holder containing a coolant delivery passage, and a locking pin, which has a longitudinal locking pin bore in communication with the coolant delivery passage. A clamp assembly attaches to the holder and engages a cutting insert. The clamp assembly has a diverter plate with an integral boss, which has a central boos bore, and an interior passage wherein the central boss bore is in communication with the interior passage. The longitudinal locking pin bore opens to the central boss bore whereby coolant flows into the central boss bore and to the interior passage exiting the interior passage toward the cutting insert.

Description

Cutting insert assembly and parts thereof

The cross reference of formerly patent application

Present patent application is in the part continuation application of the unsettled U.S. Patent Application Serial Number 12/874,591 about " cutting insert assembly and parts thereof (CUTTING INSERT ASSEMBLY AND COMPONENTS THEREOF) " of submission on September 2nd, 2010 by people such as old (Chen).The ladies and gentlemen applicant hereby described U.S. Patent Application Serial Number 12/874,591 about " cutting insert assembly and parts thereof (CUTTING INSERT ASSEMBLY AND COMPONENTS THEREOF) " based on being submitted on September 2nd, 2010 by people such as old (Chen) requires priority.Further, the described U.S. Patent Application Serial Number 12/874,591 about " cutting insert assembly and parts thereof (CUTTING INSERT ASSEMBLY AND COMPONENTS THEREOF) " that ladies and gentlemen applicant will be submitted on September 2nd, 2010 by people such as old (Chen) is hereby combined in this with its full content.

Background of invention

The present invention be directed to a kind of metal cutting system and relate to especially and be adapted to be in the material removal process that forms smear metal from workpiece near the cooling agent that helps to strengthen the interface (, empiecement-chip interface) between cutting insert and workpiece and send to be reduced in a kind of metal cutting system of the undue heat at this empiecement-chip interface place.The present invention is further for the parts of this type of metal cutting system.This base part for example comprises: lock pin, clamp assembly, clamper, pad and cutting insert.

Generally include for the metal cutting tool of carrying out metal cutting operation: a cutting insert, this cutting insert has a surface that ends at a cutting edge place; And a cutting tool gripper, this cutting tool gripper is formed a seat that holds this empiecement with being adapted for.This cutting insert engages with workpiece to remove material and form the smear metal of this material in this process.The heat excessive at empiecement-chip interface place may have negative effect (, reduce or shorten) to effective cutter life of cutting insert.

For example, the smear metal producing from this workpiece is glued (for example,, by welding) sometimes to the surface of this cutting insert.The chip material by this way accumulation on cutting insert is not wish to occur, and this understands the performance to cutting insert and therefore whole material removal operation is had to negative effect.ANALYSIS OF COOLANT FLOW is to the possibility that will reduce by this kind of welding in empiecement-chip interface.Therefore often wish to reduce the undue heat in this empiecement-chip interface to eliminate or reduce the accumulation of chip material.

As another example, remove in operation at a material that forms smear metal, may there are in the time that smear metal is bonded on cutting insert these smear metals and not leave the situation in the region of empiecement-chip interface.In the time that the region of empiecement-chip interface is not left in smear metal, exist the possibility that smear metal may be cut again.People do not wish that turning empiecement cuts again to the smear metal of having removed from workpiece.ANALYSIS OF COOLANT FLOW will contribute to the discharge of the smear metal in empiecement-chip interface, the minimizing possibility that makes thus smear metal again be cut on empiecement-chip interface.

Have a kind of like this understanding, that is, shorter effective cutter life has increased running cost and has reduced gross production efficiency.Undue heat in empiecement-chip interface has promoted the welding of chip material and cutting again of smear metal, and the two is unfavorable for production efficiency.Exist the multiple easy clear advantage being associated with the heat reducing in this empiecement-chip interface, a kind of mode that wherein reduces temperature is that supply coolant is on this empiecement-chip interface.

Up to now, multiple systems move to be reduced in the temperature of this cutting insert in working angles.For example, some systems have been used external nozzles to cooling agent is guided to the cutting edge place at this empiecement.Cooling agent is not only used for reducing the temperature of empiecement but also is used for removing smear metal from cutting zone.These nozzles are conventionally apart from the distance of one to 12 inch of cutting edge.This is a distance too far away for effective cooling.The distance that cooling agent must be advanced is far away, and the cooling agent mixing with air is just more and it is by just less the possibility that contact cutter-chip interface.

Authorize the U.S. Patent number 6 about " forming formula cutting insert (CHIP FORMING CUTTING INSERT WITH INTERNAL COOLING) with inner colded smear metal " of Catharina Lagerberg (Lagerberg), 053,669 has discussed the importance of the heat in minimizing empiecement-chip interface.Catharina Lagerberg is mentioned, and in the time that the cutting insert of being made up of sintered-carbide reaches uniform temperature, its tolerance to plastic deformation reduces.Plastic deformation tolerance reduce to have increased the risk that cutting insert breaks.Authorize the U.S. Patent number 5,775,854 about " metal cutting tool (METAL CUTTING TOOL) " of Wertheim (Wertheim) and pointed out that the rising of operating temperature has caused the reduction of cutting insert hardness.Consequence is that the wearing and tearing of cutting insert increase.

Other patent documentations have disclosed different modes or the system for send cooling agent to empiecement-chip interface.For example, authorize the people's such as Norman Pritchard (Prichard) the U.S. Patent number 7 about " milling cutter of sending with cooling agent and milling empiecement (MILLING CUTTER AND MILLING INSERT WITH COOLANT DELIVERY) ", 625,157 relate to a kind of cutting insert comprising with the cutting body of central coolant entrance.This cutting insert further comprises a kind of orientable commutator.This commutator has a coolant grooves, and this coolant grooves makes cooling agent be diverted to specific cutting position.

Authorize the U.S. Patent number 6 about " with the coolant channel of globality and the cutting tool gripper of exchangeable nozzle (TOOL HOLDER WITH INTEGRAL COOLANT PASSAGE AND REPLACEABLE NOZZLE) " in peace east (Antoun), 045,300 cooling agent that has disclosed use high pressure and high volume is sent the heat problem that solves empiecement-chip interface place.The U.S. Patent number 6,652,200 about " with the cutting tool gripper (TOOL HOLDER WITH COOLANT SYSTEM) of coolant system " of authorizing Cray silent (Kraemer) has disclosed the multiple grooves between cutting insert and a top board.Coolant flow is the heat problem with solution empiecement-chip interface place through these grooves.The U.S. Patent number 5,901,623 about " low temperature machined (CRYOGENIC MACHINING) " of authorizing flood (Hong) has disclosed for liquid nitrogen being applied to the cooling agent delivery system in empiecement-chip interface.

Summary of the invention

Ladies and gentlemen inventor has had realized that these problems relevant to conventional cooling device, and develop a kind of empiecement assembly, together with the coolant system of this empiecement assembly and a kind of routine, work to cooling agent is delivered on a cutting insert, this has solved existing these problems.

The present invention is a kind of cutter assembly being used in the removal material operation that forms smear metal from workpiece in its a kind of form.This cutter assembly comprises a clamper, and this clamper has a seat and this clamper and comprises a cooling agent and send passage.This cutter assembly further comprises a lock pin (it has a longitudinal lockpin hole), and it is upper that wherein this lock pin is attached to this seat, and this longitudinal lockpin hole is sent passage with this cooling agent and is connected like this.Have a cutting insert, this cutting insert has a cutting insert central opening.At least a portion of this lock pin is arranged in this cutting insert central opening.Have a clamp assembly, this clamp assembly is attached on this clamper and with this cutting insert and engages.This clamp assembly has a commutator plate, and wherein, this commutator plate has a basal surface, and an integral type boss hangs down from the basal surface of this commutator plate.This integral type boss comprises a central boss hole.This commutator plate comprises an inner passage, and wherein this Shi Yugai inner passage, central boss hole is communicated with.This longitudinal lockpin hole is open towards this central boss hole, and cooling agent flows in this central boss hole and arrives this inner passage, leaves this inner passage and towards this cutting insert thus.

The present invention is a kind of lock pin-commutator board component of sending a clamper of passage, cutting insert and fixture for having cooling agent in its another kind of form.This lock pin-commutator board component comprises a lock pin, and this lock pin comprises a longitudinal lockpin hole, and this longitudinal lockpin hole has a coolant entrance and a coolant outlet.This longitudinal lockpin hole has the top being limited by upper inside wall.Have a commutator plate, this commutator plate has a basal surface, and an integral type boss hangs down from the basal surface of this commutator plate.This integral type boss has a central boss hole.This commutator plate comprises the inner passage being communicated with this central boss hole.This longitudinal lockpin hole is open towards this commutator plate, and cooling agent flows in this central boss hole and arrives this inner passage, leaves this inner passage and towards this cutting insert thus.

The present invention is a kind of cutter assembly being used in the material removal operation that forms smear metal from workpiece in its another form.This cutter assembly comprises a clamper, and this clamper has a seat and comprises a cooling agent sends passage.Have a lock pin, this lock pin has a longitudinal lockpin hole sending channel connection with this cooling agent.There is a cutting insert.A clamp assembly has been attached on this clamper and with this cutting insert and has engaged.This clamp assembly has a commutator plate, and this commutator strip has an integral type boss that comprises central boss hole.This commutator plate comprises an inner passage, and wherein this Shi Yugai inner passage, central boss hole is communicated with.This integral type boss extends at least a portion of this longitudinal lockpin hole.This integral type boss has carried an elastic sealing element and this elastic sealing element provides a kind of fluid-tight sealing between this commutator plate and this lock pin.This longitudinal lockpin hole is open towards this central boss hole, and cooling agent flows in this central boss hole and arrives this inner passage, leaves this inner passage and towards this cutting insert thus.

Brief description of drawings

Be below to brief description of drawings, these accompanying drawings form a part for present patent application:

Fig. 1 is the isometric view of a specific embodiment of cutter assembly, and this cutter assembly comprises a clamper and a cutting insert assembly

Fig. 2 is the side view of the specific embodiment of Fig. 1;

Fig. 3 is the top view of the specific embodiment of Fig. 1, but cutting insert assembly is not attached on this clamper, and a part for this clamper body is removed to show this interior coolant passage;

Fig. 4 is that it does not have cutting insert assembly along the cross sectional view of the specific embodiment of Fig. 3 of the hatching 4-4 intercepting of Fig. 3;

Fig. 5 is the top view of the specific embodiment of Fig. 1, and wherein this cutting insert assembly is attached on this clamper;

Fig. 6 is the schematic cross-section of the specific embodiment of Fig. 5 of intercepting along the hatching 6-6 of Fig. 5, has shown the advancing of cooling agent, engaging to produce smear metal together with this workpiece and this cutting insert;

Fig. 7 is the zoomed-in view in Fig. 6 region in the circle 7 of Fig. 6;

Fig. 8 is the isometric view of a specific embodiment of lock pin;

Fig. 9 is the cross sectional view along the lock pin of Fig. 8 of the hatching 9-9 intercepting of Fig. 8;

Figure 10 is the top view of the lock pin of Fig. 8;

Figure 11 is the zoomed-in view in the lock pin region in the circle 11 of Fig. 9;

Figure 12 is the isometric view of a specific embodiment of commutator plate;

Figure 13 is the isometric bottom view of the commutator plate of Figure 12;

Figure 14 is the top view of the commutator plate of Figure 12;

Figure 15 is the side view of the commutator plate of Figure 12

Figure 16 is the rearview of the commutator plate of Figure 12;

Figure 17 is the cross sectional view along the commutator plate of Figure 12 of the section line 17-17 intercepting of Figure 14;

Figure 18 is the zoomed-in view in the commutator plate region in the circle 18 of Figure 17;

Figure 19 is the isometric view of a pinching screw, has wherein decomposited commutator plate;

Figure 20 is the top view of pad;

Figure 21 is the cross sectional view along the pad of Figure 20 of the hatching 21-21 intercepting of Figure 20;

Figure 22 is the isometric view of the specific embodiment of a roughing cutting insert;

Figure 23 is the top view of the roughing cutting insert of Figure 22;

Figure 24 is the side view of the roughing cutting insert of Figure 22;

Figure 25 is the cross sectional view along the roughing cutting insert of Figure 23 of the hatching 25-25 intercepting of Figure 23;

Figure 26 is the cross sectional view along the roughing cutting insert of Figure 23 of the hatching 26-26 intercepting of Figure 23;

Figure 27 shows cutting insert assembly to be assembled into an isometric view on clamper body;

Figure 28 is the isometric view of the second specific embodiment of commutator plate;

Figure 29 is the isometric bottom view of the commutator plate of Figure 28;

Figure 30 is the top view of the commutator plate of Figure 28;

Figure 31 is the side view of the commutator plate of Figure 28;

Figure 32 is the rearview of the commutator plate of Figure 28;

Figure 33 is the cross sectional view along the commutator plate of Figure 30 of the section line 33-33 intercepting of Figure 30;

Figure 34 is the cross sectional view along a part for the commutator plate of Figure 31 of the section line 34-34 intercepting of Figure 31;

Figure 35 is the zoomed-in view in the commutator plate region shown in the circle 35 of Figure 33;

Figure 36 is the isometric view that is suitable for another embodiment of the clamper that receives this cutting insert assembly;

Figure 36 A is the isometric view that is similar to a clamper of Figure 36, and wherein interior coolant passage enters from behind in this clamper and along this microscler handle and extends;

Figure 36 B is the isometric view that is similar to a clamper of Figure 36, and wherein interior coolant passage enters from the side in this clamper and in the head of this clamper and extends; And

Figure 36 C is the isometric view that is similar to a clamper of Figure 36, and wherein interior coolant passage enters this clamper and in the head of this clamper and extends from bottom.

Describe in detail

The present invention relates to a kind of useful cutting insert assembly of material removal operation for forming cutting.Remove in operation at a kind of material that forms smear metal, this cutting insert engage a workpiece in case from workpiece typically the form with smear metal remove material.A kind of material removal operation of typically removing material with the form of smear metal from workpiece is called the material removal operation that forms smear metal by those of ordinary skills.Book " machine works put into practice " (Machine Shop Practice) [the New York Co., Ltd of industry publishing house of Moltrecht, New York (1981)] 199 to 204 pages of descriptions that especially provide for smear metal formation and different types of smear metal (, continuous smear metal, discontinuous smear metal, section type smear metal).Moltrecht mentions in [part] of 199 to 200 pages: " in the time that cutting tool contacts for the first time with metal, it is at the front of cutting edge extrusion metal.In the time that cutter advances, the metal in cutting edge front is forced into it by by the point of internal shear, thereby cause the grain deformation of this metal and along a plane plasticity that is called shear plane flow ... when the metal types being cut is when being ductile (as steel), smear metal will be dropped with continuous ribbon ... ".Moltrecht continues the formation that understands a kind of discontinuous smear metal and a kind of section type smear metal.As another example, at ASTE tool engineer handbook (ASTE Tool Engineers Handbook), (the McGraw Hill Book Co. of New York, New York Mike's labor hill plot book company, New York, New York) the 302nd to 315 pages of contents that find of (1949) provide the tediously long explanation forming for the smear metal in metal cutting process.This ASTE handbook is the 303rd page of clearly relation of having shown between smear metal formation and machine operations (as turning, milling and boring).Following patent document has been discussed the smear metal of removing in operation at material and has been formed: the U.S. Patent number 5 of authorizing people's (transferring Kennametal Inc. (Kennametal Inc.)) such as Battaglia (Battaglia), 709,907, authorize people's' (transferring Kennametal Inc. (Kennametal Inc.)) such as Battaglia (Battaglia) U.S. Patent number 5,722,803 and authorize people's' (transferring Kennametal Inc. (Kennametal Inc.)) such as Ou Lesi (Oles) U.S. Patent number 6,161,990.

In a preferred embodiment, the total flow of all coolant channels should be not less than from 80% of the probable discharge of a unrestricted general flow nozzle.Should be realized that any being all suitable in this cutting insert in multiple different fluid or cooling agent.In a broad sense, there is fluid or the cooling agent of two kinds of base class, that is, based on oily fluid, comprise straight mineral oil (straight oil) and soluble oil; And chemical fluid, comprise synthetic cooling agent and semisynthetic cooling agent.Straight mineral oil is by the basic mineral oil of one or oil forms and often comprise polar lubricant, such as fat, vegetable oil and ester, together with the EP agent of chlorine, sulphur and phosphorus.Soluble oil (being also called as emulsus fluid) is that basis forms with emulsifying agent and blending agent combination by oil or mineral oil.The oil and the mineral oil that have combined emulsifying agent and blending agent are the basic components (being also called as emulsible oil) of soluble oil.The concentration of listed component in its aqueous mixtures is normally between 30%-85%.Conventionally soap, wetting agent and coupling agent are used as emulsifying agent, and their basic role is to reduce surface tension.Consequently, they can produce the foaming trend of fluid.In addition, soluble oil can comprise oiliness improver (such as ester), EP agent class, the alkanol amine that " reserve alkalinity " is provided, biocide (such as, triazine or oxazolidone), defoamer (such as long-chain organic fatty alcohol or salt), corrosion inhibitor, antioxidant etc.Synthetic fluid (chemical fluid) can further be categorized as two subgroups: true solution and surface-active fluid.True solution fluid is mainly formed and is configured to by the inorganic and organic compound of alkalescence gives corrosion protection to water.The surface-active fluid of chemistry is inorganic by alkalescence and organic corrosion inhibitor forms, and these corrosion inhibitors have combined anion, non-ionic wetting agent to provide lubricated and improve wettability.Extreme-pressure lubricant based on chlorine, sulphur and phosphorus together with more in the recent period research and development polymer physics extreme pressure reagent in some can be bonded in addition in this fluid.The refining base oil (5%-30%) that semi-synthetic fluid (being also known as half chemicals) has comprised lower amount in its concentrate.They are in addition with emulsifying agent, mix together with the water of 30%-50%.Because they comprise artificial oil and two kinds of components of soluble oil, so represented artificial oil and the two common feature of water dissolvable oil.

Referring to Fig. 1, together with other suitable figure, Fig. 1 is the isometric view that shows a specific embodiment of the cutter assembly of being appointed as generally 100.This is a kind of cutter assembly that can be used for forming from workpiece 118 the material removal operation of smear metal.Material is removed from this workpiece 118 with the form of smear metal 120.Cutter assembly 100 comprises the basic components of a clamper that is expressed as generally 102, this clamper is a kind of (Kennametal Inc. of Kennametal Co., Ltd (15650) by Pennsylvania, America La Choubai city, Latrobe, Pennsylvania U.S.A.15650) clamper of the pattern sold under trade mark KM.Should be realized that, the clamper of different patterns is to be applicable to using.This clamper 102 should have an internal coolant and send passage, and this passage is connected with a kind of coolant source and the region of taking a seat.This region of taking a seat has an opening in this seat, and wherein this opening is to be communicated with in fluid with this interior coolant passage.

This cutter assembly 100 further comprises in a pad 104, a lock pin 106(Fig. 1 and not showing, but shown in Fig. 6 and other accompanying drawings), cutting insert 108 and a clamp assembly (bracket) 110.These parts will below described separately in more detail.This clamp assembly 110 comprises a upright screw 112 and an arm 114, and this arm leaves this screw 112 and stretches out.A commutator plate 116 is connected on arm 114 removably, and wherein at least a portion of this commutator plate 116 is left this arm 114 and stretch out and covered at least a portion of this cutting insert 108.

The ANALYSIS OF COOLANT FLOW that arrow C F representative in Fig. 1 sprays or leaves from this cutter assembly.This cooling agent sprays to this cutting insert and engages with workpiece this discrete cutting position of part.As will be hereinafter described in greater detail, this cooling agent spraying is moved along the radially coolant grooves in the rake face of this cutting insert.This radially the geometry of coolant grooves make this cooling agent in the upward direction of leaving this rake face and leaving on the outward direction of this central authorities' empiecement opening and moving.This cooling agent at one upwards and in outside direction, leave this radially coolant grooves.The lower surface of the smear metal forming from this workpiece has been clashed in the spraying of this cooling agent, wherein this cooling agent upwards and outside movement contribute to clash into smear metal on the lower surface of smear metal.

Arrive Fig. 4 together with other suitable figure referring to Fig. 2, this clamper 102 has a clamper body 124, and this clamper body has a front end (or working end) 128 and a rear end 126.This clamper body 124 has a handle region adjacent with this rear end 126 (bracket 130) and a head zone being connected with this front end 128 (bracket 132).This head zone 132 comprises a seat, is appointed as generally 136, and this has one and enters seating face 138 and a upright stayed surface 140.As will become apparent hereinafter are, this upright stayed surface 140 is that pad 104 and cutting insert 108 provide a supporting role in the time that this clamper body 124 is fixed on seat 136.

This clamper body 124 comprises a cooling agent and sends passage 142, and this passage has an end 144 and a contrary end 146.This contrary end 146 is to be positioned among seating face 138.This cooling agent send passage 142 have with this enter the level and smooth frusto-conical section 147(of adjacent one of seating face 138 referring to Fig. 4).As shown in Figure 4, this cooling agent is sent passage 142 and is further had the threaded sections 148 that the frusto-conical section level and smooth with this 147 is adjacent.Send passage 142 about cooling agent, the major part that this cooling agent is sent passage 142 comprises a columniform pipeline 150 generally, and this pipeline moves to a point 151 from this end 144, has changed direction at this this passage 142 of some place.Then the shorter part 152 that this cooling agent is sent passage 142 extends to this and enters seating face 138.As shown in Figure 3, cooling agent enters this cooling agent through this end 144 and sends passage 142.This clamper body 124 further comprises a holes for clamping 153, and this holes for clamping comprises a screw clamp tieholen section 155.

Referring to Fig. 8-11, together with other suitable figure, this lock pin (being expressed as generally 106) has a microscler lock pin body 170, and this lock pin body has an axial top 172 and an axial bottom 174.Lock pin body 170 comprises that a central longitudinal is to lockpin hole 176, and this hole extends through this lock pin body 170 always.This central longitudinal has a coolant entrance 178 and a coolant outlet 180 to lockpin hole 176.As will become apparent hereinafter are, cooling agent enters at this coolant entrance 178, advances and leave through hole 176 and at coolant outlet 180 places.

The outer surface of lock pin body 170 has an annular shoulder 182 between axial top 172 and axial bottom 174.After ring-type shoulder 182, it is an annular recess 183.This lock pin body 170 has a head zone adjacent with this top 172 (bracket 184) and comprises this ring-type shoulder 182.This lock pin body 170 further has a handle region adjacent with this bottom 174 (bracket 186).Annular recess 183 in this lock pin body 170 has carried a flexible O-ring packing 188.The outer surface of this lock pin body 170 comprises a threaded portion 200 adjacent with its bottom 174.

Lock pin 106 provides " a retracting " feature in the threaded sections 148 that is fastened to this cooling agent completely and sends passage 142.Lock pin 106 has been realized this feature by the orientation difference compared with the longitudinal axis of threaded portion 200 and the longitudinal axis of the remainder of lock pin body 170.The longitudinal axis of the central longitudinal axis of this threaded portion 200 and the remainder of this lock pin is arranged to an angle separately." retract " and refer at lock pin 106 completely when fastening, this lock pin 106 is pushed pad 104 and cutting insert 108 to this upright stayed surface 140.This feature has improved this cutting insert 108 and pad 104 has been remained on to the integrality in the seat of this clamper.This " retracting " feature is demonstrated and is described in the common unsettled U.S. Patent Application Serial Number 12/874 about " cutting insert assembly and parts thereof (CUTTING INSERT ASSEMBLY AND COMPONENTS THEREOF) " of being submitted on September 2nd, 2010 by people such as old (Chen), in 591, this application is combined in this by reference.

With reference to Figure 12 to 18, show a commutator plate 116, this commutator plate has a commutator plate main body 210.This commutator plate main body 210 has a top surface 212 and a basal surface 214.This top surface 212 has a horizontal component 215, wherein has an axial notch 216.This commutator plate main body 210 is further included in a transverse concave groove 218 of the junction between this horizontal component 215 and a sloping portion, and this sloping portion has a central inclined surface 220 and two lateral tilt surfaces 226,228.This commutator plate main body 210 comprises a recess 222 and an inner passage 224.

This commutator plate 116 further has an integral type boss 234, and this integral type boss hangs down from the basal surface 214 of this commutator plate main body 210.This boss 234 has a far-end 236, has a fi-ustoconical surface 248 at this far-end.This boss 234 further comprises a central boss hole 238, and this central boss hole has a bottom 240 and a upper end 242.The outer surface of this integral type boss 234 comprises an annular recess 244, and this annular recess has carried an O-ring packing 246.

This commutator main body 210 further has multiple side surfaces (256,258), and these side surfaces extend to respectively the rear end surface 260 of this commutator main body 210 from its corresponding lateral tilt surface (226,228).Each side surface 256,258 comprises respectively a lateral groove 264,266.Lateral groove 264 is partly limited by a tapered wall 268 and a straight wall 270.Lateral groove 266 is partly limited by a tapered wall 272 and a straight wall 274.

As shown in figure 17, this central boss hole 238 is that 242 places are communicated with in fluid with this inner passage 224 in the top.Send although will be described below cooling agent, cooling agent is to advance (flowing) from this bottom 240 through this central boss hole 238 and leave this central boss hole 238 by its upper end 242 to enter this inner passage 224.This inner passage 224 is open at recess 222 places, and cooling agent spray and passes recess 222 and towards this cutting insert from this inner passage 224 thus.As will be hereinafter described in greater detail, cooling agent moves ahead to be sprayed in this cutting insert-workpiece interface along the surface of this cutting insert.

Referring to Figure 20 and Figure 21, together with other suitable figure, pad 104 has polygonal geometry generally, with a top surface 154, basal surface 156 and a side surface 158.This pad 104 comprises a central opening 160 that passes completely through this pad 104.This central opening 160 has an annular lip 162 between top surface 154 and basal surface 156, and wherein this annular lip 162 stretches in the volume of this central opening 160.The cross section of annular lip 162 has a Frusto-conical surface generally.

As will be hereinafter described in more detail, annular lip 162 provides such surface: between this pad 104 and this lock pin 106, produce a kind of fluid-tight sealing thereby a flexible O-ring packing 188 is resisted against distortion on this surface under pressure.Should be realized that this pad 104 can comprise other structures or cooperate mutually with other structures, this has played sealing function.Ladies and gentlemen applicant does not consider that elasticity O-ring packing 188 is the sole modes that produce fluid-tight sealing between this pad 104 and this lock pin 106.

Referring to Figure 19, together with other suitable figure, this clamp assembly 110 comprises screw 112, and this screw has a upper end 280 and a lower end 282.This screw 112 has a head part 284 and a threaded sections 286.This clamp assembly 110 further comprises arm 114.Arm 114 has a near-end 300 and a far-end 302.Arm 114 also has a basic section 304, and this basis section comprises an opening 306 adjacent with near-end 300.This basis section 304 also has a cylindrical sector 305.This screw 112 is rotating in the opening 306 of this basis section 304.This clamp assembly 110(has been attached on this clamper and with this cutting insert and has engaged) further there is a commutator plate 116.This head part 284 has a pair of isolated skewer 288, when these parts stretch out towards this cutting insert in assembled state these skewers of lower time.These skewers 288 have inside generally deflection.These skewers 288 engage to this commutator plate 116 is anchoring on this clamp arm 114 with this commutator plate 116.

Roughing cutting insert 420 has been shown in Figure 22-26.Referring to Figure 22 to Figure 26, roughing empiecement 420 has a roughing cutting insert body 430 with rhombus geometry, and this roughing cutting insert body has eight discrete turning cutting zones 432.This roughing empiecement body 430 has a pair of contrary rake face 434,436 and a side 438, and extend around the periphery of this roughing empiecement body 430 this side.This side 438 is crossing with these rake faces 434,436 and form cutting edges 440 at these turning cutting zones 432 places.A pair of relative turning cutting zone 432(is seen in fig. 23, turning, upper right side and left lower corners) there is one and equal the angle " AAA " of approximately 80 °.Another is seen in fig. 23 to relative turning cutting zone 432(, turning, upper left side and turning, lower right side) there is one and equal the angle " BBB " of approximately 100 °.Architectural feature including these surfaces is substantially the same for each turning cutting zone 432.

This roughing empiecement body 430 comprises a central opening 444 through this roughing empiecement body 430, and wherein this central opening 444 and two rake faces (434,436) intersect.This central opening 444 has a peristoma (446,448) with each intersection of rake face (434,436).Have a peripheral edge 450, it extends around this turning cutting zone 432.This peripheral edge 450 be positioned under this rake face plane and parallel with it.Figure 26 shown, this peripheral edge 450 is that next one that is positioned at this rake face plane (plane of, extending along this rake face) located apart from " D ".This peripheral edge 450 has a peripheral edge middle section 452 and a pair of peripheral edge transverse area 454,456, and this leaves this peripheral edge middle section 452 to peripheral edge transverse area and extends.This turning cutting zone 432 can comprise all or part of of this peripheral edge 450, and this depends on concrete cutting operation.This turning cutting zone 432 typically comprises this peripheral edge middle section 452.

There is a radially coolant grooves 460 at cutting zone 432 places, each turning.This radially coolant grooves 460 there is an opening and enter the radial inner end 462 in this central opening 444.The horizontal flat sides surface 466,468 that radially coolant grooves 460 has an arcuate bottom surface 464 and stops at transverse side edges 470,472 places respectively.This radially coolant grooves 460 there is a radial outer end 478, this radial outer end stops at central recess between coolant grooves 460 and central peripheral edge 452 484 places radially.There is a horizontal pattern region (lateral topographic region) along this each transverse side edges of coolant grooves radially.

Have a pair of peripheral recesses 480,482 transversely peripheral edge 454,456 extend and be positioned at its inside, but these peripheral recesses 480,482nd, in them and this radially intersection termination of coolant grooves 460.These peripheral recesses the 480, the 482nd, with the plane parallel of this rake face.For this cutting insert, be clear that, this radially coolant grooves have one with the contiguous starting point of this cutting insert central opening and one with this turning cutting edge region contiguous and radially inside isolated terminal.This radially coolant grooves there is the degree of depth reducing gradually from this origin-to-destination.This cooling agent moves ahead when leaving in this upward direction of radially leaving this rake face when coolant grooves.

Or rather, for this commutator plate 116 is assembled on this clamp arm 114, this commutator plate 116 is oriented to align with these skewers 288.These tapered wall (268,272) adjacent with rear end 260 engage with these skewers 288 to make them launch in the time that this cylindrical member 305 moves at this commutator plate 116.These skewers 288 are towards these commutator plate 116 toe-ins and within being positioned at these lateral groove (264,266).The toe-in of these skewers 288 is fixed on this commutator plate 116 on this clamp arm 114 securely.As it can be recognized, can commutator plate 116 and this clamp arm 114 be separated by this commutator plate 116 being pulled away to this basis 304.

By a commutator plate on the remainder that is easily attached to this clamp assembly is provided, the material of manufacturing this commutator plate can change according to cutting application.For example, depend on concrete application, commutator plate 116 can be made up of steel or carbide.The ability that only changes the material of this commutator plate and do not change the remainder of this clamp assembly provides a kind of advantage.Another advantage relevant to commutator plate (being easily attached on the remainder of this clamp assembly) is that the structure of this commutator plate or geometry can change to adapt to concrete situation or application.

With reference to Figure 28 to 35, show the second specific embodiment of commutator plate 500.This commutator plate 500 has a commutator plate main body 502.This commutator plate main body 502 has a top surface 504 and a basal surface 506.This top surface 504 has a horizontal component 508, wherein has an axial notch 510.This commutator plate main body 502 is further included in a transverse concave groove 512 of the junction between this horizontal component 508 and a sloping portion, and this sloping portion has a central inclination flat surfaces 516 and two lateral tilt surfaces 518,520.This commutator plate main body 502 further has a curved forward surface 522, and wherein two converging passageways 528,530 are open at these curved forward surface 522 places.Converging passageway 528 has an entrance 534 and an outlet 536.Converging passageway 530 has an entrance 538 and an outlet 540.

This commutator plate 500 further has an integral type boss 542, and this integral type boss hangs down from the basal surface 506 of this commutator plate main body 502.This boss 542 has a far-end 544, has a fi-ustoconical surface 546 at this far-end.This boss 542 further comprises a central boss hole 548, and this central boss hole has a bottom 550 and a upper end 552.The outer surface of this integral type boss 542 comprises an annular recess 554, and this annular recess has carried an O-ring packing 556.This commutator main body 502 further has multiple side surfaces (558,560), and these side surfaces extend to respectively the rear end surface 562 of this commutator plate main body 502 from its corresponding lateral tilt surface (518,520).Each side surface 558,560 comprises respectively a lateral groove 564,566.Lateral groove 564 is partly limited by a tapered wall 568 and a straight wall 570.Lateral groove 566 is partly limited by a tapered wall 572 and a straight wall 574.

Especially as shown in Figure 31 and Figure 34, this central boss hole 548 is that 552 places are communicated with in fluid with these converging passageways 528,530 in the top.Send about cooling agent, cooling agent is advance (flowing) from this bottom 550 through this central boss hole 548 and enter these converging passageways 528,530 by upper end 552.Converging passageway 528,530 is in the outlet (536 of its correspondence, 540) locate to open, cooling agent is from these converging passageways 528,530 towards this cutting insert ejection thus, and wherein cooling agent flows and is sprayed at this cutting insert-workpiece interface place along the surface of this cutting insert.

About the assembling of these parts, the assembling that Figure 27 is these parts provides a kind of visual guiding, and Fig. 6 and 7 shows the cross section of the parts after assembling.Initially, pad 104 is positioned to 136 enters on seating face 138 in clamper 102.These side surfaces 158 adjacent with this upstanding wall 140 of this pad 104 contact with the surface of wall 140.Arrow A A has represented this step in assembling process.

As next step, lock pin 106 is inserted to this and enter cooling agent in seating face 138 and send among the outlet 146 of passage 142.The threaded portion 200 of lock pin 106 engages with threaded sections 148 screw-types that this cooling agent is sent passage 142.Lock pin 106 is screwed into, is sent among passage 142 until it is closely fixed on this cooling agent.Be apparent that, at least a portion of lock pin 106 is to be positioned at this cooling agent to send among passage 142.Pad 104 is closely fixed to entering on seating face of this by lock pin 106.Arrow B B has represented this step in assembling process.

As next step, this cutting insert 108 is positioned on the top of pad 104.When in this position, the upper part 204 of lock pin 106 is to be at least positioned within the part of central opening 109 of this cutting insert 108.Arrow C C has represented this step in assembling process.

Should be realized that, send among passage 142 once lock pin 106 is securely fixed in cooling agent, the rear surface of shoulder 182 is just pressed against this O shape ring 188 on the antelabium 162 of pad 104.This O shape ring 188 has produced a kind of fluid-tight sealing between lock pin 106 and pad 104.In operating process, cooling agent can not be escaped between pad 104 and lock pin 106.

Next step in this assembling process comprises this clamp assembly 110 is attached on clamper 102.Engage the threaded sections 286 of this screw 112 and screw clamp tieholen 153 screw-types in this clamper 102.By fastening in place downwards clamp assembly 110, it is fixing in place at pad 104 tops by this cutting insert 108 herein.

When in intimate position firmly, the seal 246 on this commutator plate 116 is pressed against on the inwall 202 on top 204 of this lock pin 106.Consequently between this commutator plate 116 and lock pin 106, there is fluid-tight sealing.Become and be clear that, send between passage and there is a kind of fluid-tight sealing at this lock pin and this cooling agent, as previously discussed.Also will be clear that, between this lock pin and this pad, have fluid-tight sealing, as previously discussed.Also will be clear that, between this lock pin and this commutator plate, have fluid-tight sealing, as previously discussed.In this stage in this assembling process, this cutter assembly is ready for from workpiece and forms in the material removal operation of smear metal.

In operation, typically the cooling agent under pressure enters this cooling agent via this end 144 and sends in passage 142.Cooling agent enters seating face 138 this cooling agent of flowing through and sends passage 142 towards this.Lock pin 106 is screwed into the cooling agent adjacent with its another end 144 completely and is sent in passage 142.When under this state, the axial bottom 174 of lock pin 106 is positioned in this cooling agent and sends among passage 142.Cooling agent enters among the longitudinal hole 176 of this lock pin 106 through entrance 178.ANALYSIS OF COOLANT FLOW is left and is entered in this central boss hole 238 and then enter in the passage 224 of this commutator plate 116 through longitudinal hole 176 and through exporting 180.Cooling agent sprays and enters in the radially coolant grooves of this cutting insert from passage 224.In the radially coolant grooves that this cooling agent is sprayed from the rake face of this cutting insert upwards and outside direction advance.This cooling agent spraying strikes the lower surface of the smear metal forming from this workpiece in cutting operation process.

Figure 36 is the isometric view that is suitable for another specific embodiment of the clamper that receives this cutting insert assembly.This clamper 390 has a clamper body 391, and this clamper body has contrary axis front end 392 and axial rearward end 393.A handle 396 is adjacent with rear end 393, and a head 395 is adjacent with front end 392.In the part of taking a seat of head 395, there is a coolant ports 397.Figure 36 A has shown that cooling agent sends passage 398, and it enters from the rear end of this clamper body and extends along its whole length.

Figure 36 B is the isometric view that is similar to a clamper 390A of the clamper of Figure 36, but wherein interior coolant passage 398A enters through the bottom of this clamper.Figure 36 C is the isometric view that is similar to a clamper 390B of the clamper of Figure 36, but wherein interior coolant passage 398B enters through the basal surface of this clamper.Have a kind of understanding, that is, this cooling agent is sent passage can enter into this clamper in any one position in multiple positions, for example, and at rear portion, side and bottom.

Be clear that, the invention provides a kind of cutter assembly, together with a kind of cutting insert assembly, for helping near the cooling agent strengthening the interface (, empiecement-chip interface) between cutting insert and workpiece to send.By doing like this, the undue heat in this empiecement-chip interface in the material removal process that forms smear metal from workpiece reduces.By ANALYSIS OF COOLANT FLOW is provided, thereby reduce at the undue heat at this empiecement-chip interface place the accumulation of eliminating or having reduced chip material.By providing cooling agent to flowing in empiecement-chip interface, by the discharge that contributes to smear metal this empiecement-chip interface, the minimizing possibility that makes thus smear metal again be cut.Be clear that, the invention provides the multiple advantages relevant with the heat that reduces empiecement-chip interface place.

These patents and the alternative document that indicate at this are combined in this by reference.Implement invention disclosed here by considering this description or passing through, other embodiment of the present invention will be clearly for those skilled in the art.It is only illustrative and be not intended to limit the scope of the invention that this description and these examples are intended to.True scope of the present invention and spirit are to be shown by following claim.

Claims

1. be used in from workpiece form smear metal material remove operation in a cutter assembly, this cutter assembly comprises:

A clamper, this clamper has a seat;

This clamper comprises a cooling agent and sends passage;

One has the lock pin of longitudinal lockpin hole, and it is upper that this lock pin is attached to this seat, and this longitudinal lockpin hole is sent passage with this cooling agent and is connected like this;

There is a cutting insert of a cutting insert central opening;

At least a portion of this lock pin is arranged in this cutting insert central opening;

A clamp assembly, this clamp assembly is attached on this clamper and engages this cutting insert, and this clamp assembly has a commutator plate, this commutator plate has a basal surface and an integral type boss hangs down from this basal surface of this commutator plate, this integral type boss comprises a central boss hole, this commutator plate comprises an inner passage, and wherein this Shi Yugai inner passage, central boss hole is communicated with; And

This longitudinal lockpin hole is open towards this central boss hole, and cooling agent flows in this central boss hole and arrives this inner passage, leaves this inner passage and towards this cutting insert thus.

2. cutter assembly according to claim 1, further comprises a pad being received within this, and this lock pin engages to this pad is fixed on this clamper at this place with this pad.

3. cutter assembly according to claim 2, wherein, this lock pin has carried an O-ring packing, and this O-ring packing provides a kind of fluid-tight sealing between this lock pin and this pad.

4. cutter assembly according to claim 1, wherein, radially coolant grooves have one with the contiguous starting point of this cutting insert central opening and one with turning cutting edge region contiguous and inside isolated terminal radially with it, this radially coolant grooves there is the degree of depth reducing gradually to this terminal from this starting point.

5. cutter assembly according to claim 4, wherein, leave this radially the cooling agent of coolant grooves in the upward direction of leaving this rake face, move ahead.

6. cutter assembly according to claim 1, wherein, this longitudinal lockpin hole has the top being limited by a upper inside wall, and this integral type boss has carried a boss seal; And at least a portion of this integral type boss extends in this top of this longitudinal lockpin hole, and this boss seal is sealed in this upper inside wall thus, thereby has formed a kind of fluid-tight sealing between this commutator plate and this lock pin.

7. cutter assembly according to claim 1, wherein, this commutator plate comprises second inner passage being communicated with this central boss hole, and cooling agent flows in this central boss hole and arrives this second inner passage, leaves this second inner passage and towards this cutting insert thus.

8. cutter assembly according to claim 7, wherein, this inner passage and this second inner passage are assembled toward each other.

9. cutting insert according to claim 7, wherein, this inner passage and this second inner passage differ from one another.

10. cutting insert assembly according to claim 1, wherein this commutator plate further comprises a recess, and this inner passage is open in this indent.

11. cutting insert assemblies according to claim 1, wherein, this integral type boss extends at least a portion of this longitudinal lockpin hole, this integral type boss has carried an elastic sealing element, and this elastic sealing element provides a kind of fluid-tight sealing between this commutator plate and this lock pin.

12. 1 kinds of lock pin-commutator board components that use together with thering is cooling agent and send the clamper of passage, cutting insert and fixture, this lock pin-commutator board component comprises:

Have a lock pin of a longitudinal lockpin hole, this longitudinal lockpin hole has a coolant entrance and a coolant outlet, and this longitudinal lockpin hole has the top being limited by a upper inside wall;

A commutator plate, this commutator plate has a basal surface and an integral type boss hangs down from this basal surface of this commutator plate, and this integral type boss has a central boss hole, and this commutator plate comprises the inner passage being communicated with this central boss hole; And

This longitudinal lockpin hole is open towards this commutator plate, and cooling agent flows in this central boss hole and arrives this inner passage, leaves this inner passage and towards this cutting insert thus.

13. lock pin-commutator board components according to claim 12, wherein, this longitudinal lockpin hole has the top being limited by a upper inside wall, and this integral type boss has carried a boss seal; And at least a portion of this integral type boss extends in this top of this longitudinal lockpin hole, and this boss seal is sealed in this upper inside wall thus, thereby has formed a kind of fluid-tight sealing between this commutator plate and this lock pin.

14. lock pin-commutator board components according to claim 12, wherein, this commutator plate comprises second inner passage being communicated with this central boss hole, and cooling agent flows in this central boss hole and arrives this second inner passage, leaves this second inner passage and towards this cutting insert thus.

15. lock pin-commutator board components according to claim 14, wherein, this inner passage and this second inner passage are assembled toward each other.

16. 1 kinds be used in from workpiece form smear metal material remove operation in cutter assembly, this cutter assembly comprises:

A clamper, this clamper has a seat and comprises a cooling agent sends passage;

A lock pin, this lock pin has a longitudinal lockpin hole sending channel connection with this cooling agent;

A cutting insert;

A clamp assembly, this clamp assembly is attached on this clamper and engages this cutting insert, and this clamp assembly has a commutator plate, this commutator plate has an integral type boss, this integral type boss comprises a central boss hole, this commutator plate comprises an inner passage, and wherein this Shi Yugai inner passage, central boss hole is communicated with; And

This integral type boss extends at least a portion of this longitudinal lockpin hole, this integral type boss has carried an elastic sealing element, and this elastic sealing element provides a kind of fluid-tight sealing between this commutator plate and this lock pin, this longitudinal lockpin hole is open towards this central boss hole, and cooling agent flows in this central boss hole and arrives this inner passage, leaves this inner passage and towards this cutting insert thus.

17. cutter assemblies according to claim 16, further comprise a pad being received within this, and this lock pin engages to this pad is fixed on this clamper at this place with this pad.

18. cutter assemblies according to claim 17, wherein this lock pin has carried an O-ring packing, and this O-ring packing provides a kind of fluid-tight sealing between this lock pin and this pad.