CN202106568U - Device for continuous producing rod being infinite in length and having multiple inner spiral cooling holes - Google Patents
Device for continuous producing rod being infinite in length and having multiple inner spiral cooling holes Download PDFInfo
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- CN202106568U CN202106568U CN2010206254244U CN201020625424U CN202106568U CN 202106568 U CN202106568 U CN 202106568U CN 2010206254244 U CN2010206254244 U CN 2010206254244U CN 201020625424 U CN201020625424 U CN 201020625424U CN 202106568 U CN202106568 U CN 202106568U
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Abstract
The utility model relates to a device for continuous producing rods being infinite in length and having multiple inner spiral cooling holes, especially to a device for continuous producing cemented carbide rods or ceramic rods being infinite in length and having single (multiple) inner spiral cooling holes. The device is characterized in that a combined die is formed by a die cavity, a male die base, a rigid spiral male die and a female die, a feeding inlet is connected with a dual-screw-rod extruder, a transmission handle is fixed in the die cavity, and a speed detector is fixed on the die cavity and connected to a computer. The computer automatically controls the rotating speed of a motor by adjusts speed-adjusting control box based on feedback information of the speed detector. The motor drives the rigid spiral male die to rotate through the transmission handle, and materials are extruded out from a gap between the rigid spiral male die and the female die through the die cavity by the dual-screw-rod extruder. A material bearing and conveying device is erected near the female die. Since die embedded in the device is a combined die, the female and male dies are changeable. The number of the inner spiral holes, hole diameters, lead angles, distances between holes of rods produced can be adjusted according to product requirements.
Description
Technical field
The utility model relates to a kind of equipment of continuous many inside spins of production endless cooling holes bar, particularly can produce the equipment of endless list (many) inside spin cooling holes hard alloy bar or ceramic round bar continuously.
Background technology
Along with the continuous development of machining industry, to the machining accuracy of high-speed milling instrument with higher requirement is arranged service life; Because during Drilling Operations, resistance of deformation is big, the cutting heat is high, and the thermal conductivity factor of alloy is generally lower, and blade is prone to weldbonding, and coating is prone to peel off rust, and high temperature has increased the diffusive wear of instrument.Hard alloy bar with the production of prior powder metallurgy method; The milling tool of its processing can only adopt external refrigeration; Operating rate is slow; Machining accuracy is poor, and service life is short, and the carbide alloy milling tool of band inside spin cooling holes can adopt the interior type of cooling; Under the effect of certain pressure cooling fluid or lubricant, can accelerate cooling velocity and chip removal speed, thereby improve milling tool rotating speed, machining accuracy and service life [Zhou Jicheng etc. Development of Powder Extrusion Molding [J] material Leader .1997.11 (6); Xiao Zhiyu etc. machine components powder metallurgy forming method metal forming technology .1997.16 (1); Jean M.Dasch et.al.Lubricants in Cutting Tool for Dry Machining.Pub.No.:US 2005/0214082A1].
At present, the production technology of inside spin cooling holes bar has in the world:
1. inlaying process: a carbide alloy bar Surface Machining is become spiral grooves to overlap to be pressed in the carbide alloy tubing pressed compact sintering together again; But this method technology is numerous and diverse, adjustment of the alloy batch mixing coefficient of expansion and control difficulty, size Control difficulty.Also can processing spiral grooves and cover be pressed in one-shot forming in the extruding; But, being combination, mesospore is got over Bao Yuehao; Be rotation; The flank of tooth is wide more good more, so mould is made difficulty, and a cover only can make a kind of size bar [Sun Yi. the mould design experiment research of carbide alloy inside spin cooling holes bar. the Master's thesis .2001.5 of University Of Chongqing; Prakash K.Mirchandani et.al.Composite Article with Coolant Channels and Tool Fabrication Method.Pub.No.:US2006/0288820A1].
2. external spiral extrusion: method one, the die calibrating strap is provided with screw thread, and material is extruded with rotation mode; The cooling holes core bar is made with the die thread groove and must be cooperated; This technological mould design is comparatively complicated; Mould die and core bar must be synchronously; Otherwise will cause dimensional parameters overproof, the cooling holes hole partially or crackle [Sun Yi. the mould design experiment research of carbide alloy inside spin cooling holes bar. the Master's thesis .2001.5 of University Of Chongqing].Method two; The die active rotation drives the material rotation; Guide simultaneously nylon yarn be embedded in the material [Wu Enxi etc. make the equipment of band inside spin cooling fluid hole bar. the application for a patent for invention prospectus; Publication number: CN 1457940A.2003] or extruding formation band straight hole bar; Reverse bar simultaneously and form threaded hole [Arno Friedrichset.al.Method and Device for Producing a Sintered Metal Blank with InternallyDisposed Helical Recesses.USA Patent, 6699430B2,2004].Nylon yarn (soft core) needs guiding embedded, screw geomery control difficulty, and if the length of later stage burn off process technology limit inner spiral hole specification and bar; Its outer surface quality of mode that the bar rotation is advanced is difficult to control.The external spiral extrusion is to use more a kind of forming technique at present both at home and abroad.
3. inside spin extrusion: the special construction that utilizes double-screw extrusion machine; Core bar is extended to extruding screw; Utilize the rotation of screw drive core bar or drive elasticity pin rotation [Arno Friedrichs et al.Extrusion Tool forProducing a Hard Metal Rod or a Ceramic Rod with Twisted Internal Boreholes.USAPatent in the core bar; 5438858,1995], reach the effect of moulding inner spiral hole; This process mould design is comparatively simple, but strict to squeezing parameter, the extruded velocity of material and core bar rotating speed coupling in the time of must making extruding.Otherwise, will cause the dimensional parameters of product can't reach requirement.Because this technological difficulty is very big, only there are external several companies such as German konard friedrichs company to produce at present, domestic still do not have this type of technology.This technology is for satisfying speeds match, and the performance of the manufacturing of core bar, elasticity pin must be complementary with extruder extruded velocity and screw speed, has limited the versatility and the producible bar specification kind of same equipment.
Summary of the invention
The purpose of the utility model is to invent one and particularly is being raising carbide alloy milling tool operating rate; Machining accuracy; Service life; A kind of equipment of continuous many inside spins of production endless cooling holes bar is provided, particularly can produces list (many) the inside spin cooling holes hard alloy bar equipment of all size.
The utility model for the technical scheme that achieves the above object is: produce the equipment of many inside spins of endless cooling holes bar continuously, be characterised in that: this equipment comprises that die cavity (10) and transmission handle (9), convex mould base (11), rigidity helix punch (4), die (12) constitute assembling die; Charging aperture (6) is connected with double helix bar extruder (5); Transmission handle (9) is fixed in the die cavity (10); The equipment (8) that tests the speed is fixed on die cavity (10) and goes up and connect with computer (1); Through the equipment of testing the speed (8) feedback information, regulate speed regulating control case (2) control motor (3) rotating speed by computer (1) automatically; Motor (3) drives rigidity helical punch (4) rotation through transmission handle (9); Driving raw material by double helix bar extruder (5) extrudes from the rigidity helical punch (4) and the gap location of die (12) through die cavity (10); Set up bearing material conveying equipment (13) near the die place.
A, motor (3) are done laterally according to the rotation of initial setting speed and through transmission handle (9) driving rigidity helix punch (4) and are rotatablely moved;
B, simultaneously drive material and vertically extrude from rigidity helix punch (4) and die (12) gap location through die cavity (11) and form bar by double helix bar extruder (5); When extruded velocity is inhomogeneous, can gathers in real time material extruded velocity information and feed back by the equipment of testing the speed (8);
C, measure bar extruded velocity V1 by the equipment of testing the speed (8); And feed back to computer (1); Computer (1) is adjusted speed regulating control case (2) parameter with control motor (3) rotating speed automatically through feedback information; Promptly control the rotating speed of rigidity helix punch (4), the speed that punch rotary speed and material are vertically extruded from clearance between punch and die is mated in real time, the ascending motion of spinning of the relative moulding bar of punch; The relative punch of the moulding bar descending motion of spinning in like manner consequently forms the inner spiral hole that equates with punch pitch, diameter, lift angle, spacing in bar;
D, bearing material conveying equipment are delivered to diamond with the inner spiral hole bar.
Said rotating speed matching formula is following: if the bar extruded velocity is V1, rigidity helical punch pitch is L, and the punch rotating speed is N, then has in the unit interval: V1=NL is N=V1/L;
The data that computer (1) comes the equipment of testing the speed (2) feedback through special-purpose software carry out sending corresponding speed governing order to electric machine speed regulation control cabinet (2) after the computing; Control motor (3) rotating speed, the real-time coupling of realization rigidity helix punch (4) rotating speed and material extruded velocity.
Compare with prior art, the utility model has following advantage or good effect:
1. can produce endless list (many) inside spin cooling holes hard alloy bar continuously with this method and equipment.Embedded mould is a combination die; Punch-die all can freely be changed; Can be according to the structure that changes rigidity helix punch (like the single conchoid punch; The bifilar helix punch is that accompanying drawing shows, triple helical line punch etc.) adjust and control this bar inside spin cooling holes hole count, aperture, lift angle, pitch and pitch of holes etc. easily.Punch-die is rigidity, so various sizes can realize strict control;
2. the assembly of the embedded assembling die of this equipment is independent separately, and processing method is simple, and is with low cost, and die cavity can use with the assembling of plurality of specifications punch-die, and is compatible good, for convenience detach.
3. this device structure is simple, controls easyly, and volume is little, can realize continuous automated production in enormous quantities.
4. the bar by the band inside spin cooling holes of this method and device fabrication can be finish-machined to milling tools such as all kinds of slotting cutters, face milling cutters and various drill bits.Carbide alloy milling tool of this type of band inside spin cooling emptying aperture can adopt the interior type of cooling, under the effect of the cooling fluid of certain pressure, can accelerate cooling velocity and chip removal speed, thereby improve operating rate, machining accuracy and the service life of milling tool.
Description of drawings
Further specify the flesh and blood of the utility model below in conjunction with the accompanying drawing instance, but the content of the utility model is not limited thereto.
Fig. 1 produces the structural representation of endless list (many) inside spin cooling holes bar equipment continuously for the utility model.
Each label implication among Fig. 1: 1-computer; 2-speed regulating control case 3---motor; 4-rigidity helical punch; 5-double helix bar extruder; The 6-charging aperture; 7---the moulding bar; The 8-equipment that tests the speed; 9-transmission handle; The 10-die cavity; The 11-convex mould base; The 12-die; 13-bearing material conveying equipment.
The specific embodiment
The special equipment that can produce endless list (many) inside spin cooling holes hard alloy bar or ceramic round bar continuously of the utility model design is characterized in that: die cavity 10 constitutes assembling die with transmission handle 9, convex mould base 11, rigidity helical punch 4, die 12; Charging aperture 6 is connected with double helix bar extruder 5; Transmission handle 9 is fixed in the die cavity 10; The equipment 8 that tests the speed is fixed on the die cavity 10 and with computer 1 and connects; Automatically regulate speed regulating control case 2 control motors 3 rotating speeds by computer 1 through the equipment of testing the speed 8 feedback informations; Motor 3 drives 4 rotations of rigidity helical punch through transmission handle 9; Driving raw material by double helix bar extruder 5 extrudes from the rigidity helical punch 4 and the gap location of die 12 through die cavity 10; Set up bearing material conveying equipment 13 near the die place.
Fig. 1 has described the structure of continuous production endless list (many) inside spin cooling holes bar equipment.This equipment comprises the assembling die that is made up of die cavity 10 and transmission handle 9, convex mould base 11, rigidity helical punch 4, die 12; Charging aperture 6 is connected with double helix bar extruder 5; Transmission handle 9 is fixed in the die cavity 10; Tachymeter 8 is fixed on the die cavity 10 and with computer 1 and connects; Automatically regulate speed regulating control case 2 control motors 3 rotating speeds by computer 1 through the equipment of testing the speed 8 feedback informations; Motor 3 drives 4 rotations of rigidity helix punch through transmission handle 9; Driving raw material by double helix bar extruder 5 extrudes from the rigidity helix punch 4 and the gap location of die 12 through die cavity 10; Set up bearing material conveying equipment 13 near the die place.
Fig. 1 has also described the working condition of continuous production endless list (many) inside spin cooling holes bar equipment.
(1) motor 3 is done laterally according to the rotation of initial setting speed and through transmission handle 9 driving rigidity helix punch 4 and is rotatablely moved;
(2) simultaneously driving materials by double helix bar extruder 5 vertically extrudes from rigidity helix punch 4 and die 12 gap locations through die cavity 11 and forms bar (when extruded velocity is inhomogeneous, can is gathered in real time and fed back by 8 pairs of material extruded velocities of the equipment of testing the speed information).
(3) measure bar extruded velocity V1 by the equipment of testing the speed 8; And feed back to computer 1; Computer 1 is adjusted speed regulating control case 2 parameters with control motor 3 rotating speeds automatically through feedback information; Promptly control the rotating speed of rigidity helix punch 4, the speed that punch rotary speed and material are vertically extruded from clearance between punch and die is mated in real time, the ascending motion of spinning of the relative moulding bar of punch; The relative punch of the moulding bar descending motion of spinning in like manner consequently forms the inner spiral hole that equates with punch pitch, diameter, lift angle, spacing in bar.The rotating speed matching formula is following:
If the bar extruded velocity is V1, rigidity helical punch pitch is L, and the punch rotating speed is N, then has in the unit interval: V1=NL, i.e. N=V1/L.The data that computer 1 comes the equipment of testing the speed 2 feedbacks through special-purpose software carry out sending corresponding speed governing order to electric machine speed regulation control cabinet 2 after the computing, control motor 3 rotating speeds, realize the real-time coupling of rigidity helix punch 4 rotating speeds and material extruded velocity.
(4) the bearing material conveying equipment is delivered to diamond with the inner spiral hole bar.
The bar of the band inside spin cooling holes of the utility model device fabrication can be finish-machined to milling tools such as all kinds of slotting cutters, face milling cutters and various drill bits.Carbide alloy milling tool of this type of band inside spin cooling emptying aperture can adopt the interior type of cooling, under the effect of the cooling fluid of certain pressure, can accelerate cooling velocity and chip removal speed, thereby improve operating rate, machining accuracy and the service life of milling tool.
Claims (2)
1. equipment of producing continuously many inside spins of endless cooling holes bar, it is characterized in that: this equipment comprises that die cavity (10) and transmission handle (9), convex mould base (11), rigidity helix punch (4), die (12) constitute assembling die; Charging aperture (6) is connected with double helix bar extruder (5); Transmission handle (9) is fixed in the die cavity (10); The equipment (8) that tests the speed is fixed on die cavity (10) and goes up and connect with computer (1); Through the equipment of testing the speed (8) feedback information, regulate speed regulating control case (2) control motor (3) rotating speed by computer (1) automatically; Motor (3) drives rigidity helical punch (4) rotation through transmission handle (9); Driving raw material by double helix bar extruder (5) extrudes from the rigidity helical punch (4) and the gap location of die (12) through die cavity (10); Set up bearing material conveying equipment (13) near the die place.
2. the equipment of continuous many inside spins of production endless cooling holes bar according to claim 1; It is characterized in that: said rotating speed matching formula is following: if the bar extruded velocity is V1; Rigidity helical punch pitch is L, and the punch rotating speed is N, then has in the unit interval: V1=NL is N=V1/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206254244U CN202106568U (en) | 2010-11-26 | 2010-11-26 | Device for continuous producing rod being infinite in length and having multiple inner spiral cooling holes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206254244U CN202106568U (en) | 2010-11-26 | 2010-11-26 | Device for continuous producing rod being infinite in length and having multiple inner spiral cooling holes |
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| Publication Number | Publication Date |
|---|---|
| CN202106568U true CN202106568U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206254244U Expired - Fee Related CN202106568U (en) | 2010-11-26 | 2010-11-26 | Device for continuous producing rod being infinite in length and having multiple inner spiral cooling holes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152491A (en) * | 2010-11-26 | 2011-08-17 | 昆明理工大学 | Equipment and method for continuously producing indefinitely long bar with multiple internal spiral cooling holes |
| CN104279418A (en) * | 2014-09-15 | 2015-01-14 | 昆山长鹰硬质合金有限公司 | Hard alloy bar |
| CN111468732A (en) * | 2020-04-29 | 2020-07-31 | 江西耀升钨业股份有限公司 | Hard alloy cutter with internal spiral cooling liquid hole and production equipment thereof |
-
2010
- 2010-11-26 CN CN2010206254244U patent/CN202106568U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152491A (en) * | 2010-11-26 | 2011-08-17 | 昆明理工大学 | Equipment and method for continuously producing indefinitely long bar with multiple internal spiral cooling holes |
| CN104279418A (en) * | 2014-09-15 | 2015-01-14 | 昆山长鹰硬质合金有限公司 | Hard alloy bar |
| CN111468732A (en) * | 2020-04-29 | 2020-07-31 | 江西耀升钨业股份有限公司 | Hard alloy cutter with internal spiral cooling liquid hole and production equipment thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20131126 |