CN203380205U - Involute spline cemented carbide extrusion die - Google Patents

Involute spline cemented carbide extrusion die Download PDF

Info

Publication number
CN203380205U
CN203380205U CN201320421420.8U CN201320421420U CN203380205U CN 203380205 U CN203380205 U CN 203380205U CN 201320421420 U CN201320421420 U CN 201320421420U CN 203380205 U CN203380205 U CN 203380205U
Authority
CN
China
Prior art keywords
spline
carbide alloy
core rod
involute outer
extrusion die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320421420.8U
Other languages
Chinese (zh)
Inventor
陈子彦
陆有为
阳敏莉
何勤松
李振华
戴永军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EST TOOLS Co Ltd
Original Assignee
EST TOOLS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EST TOOLS Co Ltd filed Critical EST TOOLS Co Ltd
Priority to CN201320421420.8U priority Critical patent/CN203380205U/en
Application granted granted Critical
Publication of CN203380205U publication Critical patent/CN203380205U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Extrusion Of Metal (AREA)

Abstract

The utility model discloses an involute spline cemented carbide extrusion die. The involute spline cemented carbide extrusion die comprises a cemented carbide die core and a shell, wherein the shell is arranged outside the cemented carbide die core and is in interference fit with the cemented carbide die core; and the spline part of the cemented carbide die core comprises a spline precursor, a spline working segment and a spline return segment, which are connected continuously. The involute spline cemented carbide extrusion die provided by the utility model has the advantages of low processing cost, long service life, high processing efficiency and high processing precision, and is capable of simultaneously processing the spline for two ends of a long shaft.

Description

Involute outer spline carbide alloy extrusion die
Technical field
The utility model relates to a kind of mould, specifically a kind of carbide alloy extrusion die that is applicable to involute outer spline on the working shaft-like part.
Background technology
Involute spline is connecting mode important in machine driving, and traditional processing mode of involute splined shaft is gear hobbing processing and Milling Process, and not only production efficiency is low, and the spline precision is not high yet.Along with the develop rapidly of auto industry, increasing to the demand of involute splined shaft class part, required precision is also more and more higher, and traditional processing mode can not meet its production and required precision gradually.Although emerging gear rolling processing mode has the advantages that production efficiency is high, Product Precision is high in recent years, the price comparison of gear rolling machine and gear rolling knife is high, debugs this link most important, needs the professional to operate.And for a longaxones parts, while needing the involute spline of two ends processing different parameters, if only have a gear rolling machine, just can't meet the task that clamped one time, two ends spline are processed simultaneously, only, after processing an end spline, again gear rolling knife be carried out to dismounting, debugging, reprocessing other end spline, troublesome poeration not only, and if the spline two ends position degree requirement is arranged, twice clamping is very large to the position tolerances.
Summary of the invention
Technical problem to be solved in the utility model is to propose that a kind of processing cost is low, long service life, working (machining) efficiency and machining accuracy high, can realize major axis two ends are processed simultaneously the involute outer spline carbide alloy extrusion die of spline.
For solving the problems of the technologies described above, the utility model involute outer spline carbide alloy extrusion die comprises carbide alloy core rod and housing, described housing is located at the outside of described carbide alloy core rod and is connected with described carbide alloy core rod interference fit, and the splined section of described carbide alloy core rod comprises that continuous connected spline is leading, spline active section and spline reverse-running section.
Above-mentioned involute outer spline carbide alloy extrusion die, it also includes cushion block, and described cushion block is located at the following of described carbide alloy core rod and is connected with described housing interference fit.
Above-mentioned involute outer spline carbide alloy extrusion die, described carbide alloy core rod adopts the cold charge interference fit to be connected with described housing, and, through 400 ℃ of constant temperature 4~5 hours, eliminates stress; Described cushion block and described housing adopt the hot charging interference fit, to increase the bearing capacity of extrusion die, extend the service life of mould.
Above-mentioned involute outer spline carbide alloy extrusion die, the leading employing conical entrance of described spline, what occur when avoiding pushing spline enters the thick phenomenon of the local pier of die orifice.
Above-mentioned involute outer spline carbide alloy extrusion die, the working width of described spline active section is chosen with the product numerical value of processed spline length by 0.2, so that in extrusion process, metal flow is easy, and frictional force is controlled to relatively little scope.
Above-mentioned involute outer spline carbide alloy extrusion die, the corner angle of described sintered carbide die in-core and transition position adopt round-corner transition, so that in extrusion process, metal is smooth, flow.
Above-mentioned involute outer spline carbide alloy extrusion die, described spline reverse-running section is pressed the spline form design, and, with certain pattern draft, so that be extruded spline, facilitates depanning.
Above-mentioned involute outer spline carbide alloy extrusion die, the space width manufacturing tolerance of described spline active section is controlled in 0.004mm, with the ellipse of effectively controlling processed spline interrod spacing size and interrod spacing, changes.
Above-mentioned involute outer spline carbide alloy extrusion die, the Index tolerance of described spline active section require 0.005mm with interior, profile of tooth tolerance 0.005m with interior, teeth directional tolerance in 0.003mm, effectively to control each individual error of processed spline.
Above-mentioned involute outer spline carbide alloy extrusion die, the tooth-face roughness Ra value of described spline active section is not more than 0.1 μ m, effectively to control the tooth-face roughness of processed spline.
Above-mentioned involute outer spline carbide alloy extrusion die, described carbide alloy core rod scribbles coating, so that the extrusion die core rod produces low-friction coefficient more, better heat-resisting quantity, higher wearability in when work, can further increase the life-span of extrusion die.
The utility model is owing to having adopted technique scheme, its adopt have that hardness is high, wear-resisting, the carbide alloy class material of intensity and a series of premium properties such as toughness is better, heat-resisting, corrosion-resistant makes core rod, the extrusion die life-span can reach more than 100,000, and the gear rolling knife life-span formed than the manufacture of employing high-speed steel exceeds a lot.Be directly installed on during application on lathe and just can use, can not only realize the processing of involute outer spline on general axial workpiece, can realize that major axis two ends process external splines by coaxial two transmission press simultaneously simultaneously, working (machining) efficiency is high.Because itself precision is higher, thereby the precision of processed spline is also very high, 5 grades of spline requirements that the accuracy class that has guaranteed processed spline can be up to state standards in GB/T3478 and stipulate, and steady quality.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model extrusion die;
Fig. 2 is that A-A in Fig. 1 is to cutaway view.
The specific embodiment
As shown in Figure 1, the utility model involute outer spline carbide alloy extrusion die comprises carbide alloy core rod 1, cushion block 2 and housing 3, and carbide alloy core rod 1 carries out the coating processing, is the critical component of extruding spline.Corner angle in carbide alloy core rod 1 and transition position adopt round-corner transition, so that in extrusion process, metal is smooth, flow.Housing 3 and cushion block 2 can change profile and structure (sometimes also can not establish cushion block 3 according to actual needs) according to the actual conditions of lathe.Housing 3 is located at the outside of carbide alloy core rod 1, cushion block 2 be located at carbide alloy core rod 1 below, carbide alloy core rod 1 and housing 3 adopts the cold charge interference fit to be connected, and, through 400 ℃ of constant temperature 4~5 hours, eliminates stress.Cushion block 2 and housing 3 adopt the hot charging interference fit.The splined section of carbide alloy core rod 1 comprises that the leading 11(of spline also enters die orifice), spline active section 12 and spline reverse-running section 13(please consult Fig. 2 simultaneously), spline leading 11 adopts conical entrance, the working width of spline active section 12 is chosen with the product numerical value of processed spline length by 0.2, so that in extrusion process, metal flow is easy, and frictional force is controlled to relatively little scope.The space width manufacturing tolerance of spline active section 12 is controlled in 0.004mm, Index tolerance require 0.005mm with interior, profile of tooth tolerance 0.005m with interior, teeth directional tolerance in 0.003mm, tooth-face roughness Ra value should not be greater than 0.1 μ m.Spline reverse-running section 13 is pressed the spline form design, and adopts certain pattern draft (large footpath, path, space width all are with gradient), so that be extruded spline, facilitates depanning.

Claims (8)

1. involute outer spline carbide alloy extrusion die, it is characterized in that, it comprises carbide alloy core rod and housing, described housing is located at the outside of described carbide alloy core rod and is connected with described carbide alloy core rod interference fit, and the splined section of described carbide alloy core rod comprises that continuous connected spline is leading, spline active section and spline reverse-running section.
2. involute outer spline carbide alloy extrusion die as claimed in claim 1, is characterized in that, it also includes cushion block, and described cushion block is located at the following of described carbide alloy core rod and is connected with described housing interference fit.
3. involute outer spline carbide alloy extrusion die as claimed in claim 2, is characterized in that, described carbide alloy core rod adopts the cold charge interference fit to be connected with described housing, and described cushion block and described housing adopt the hot charging interference fit.
4. as claim 1,2 or 3 described involute outer spline carbide alloy extrusion dies, it is characterized in that the leading employing conical entrance of described spline.
5. as claim 1,2 or 3 described involute outer spline carbide alloy extrusion dies, it is characterized in that, the working width of described spline active section is chosen with the product numerical value of processed spline length by 0.2.
6. as claim 1,2 or 3 described involute outer spline carbide alloy extrusion dies, it is characterized in that, the corner angle of described sintered carbide die in-core and transition position adopt round-corner transition.
7. as claim 1,2 or 3 described involute outer spline carbide alloy extrusion dies, it is characterized in that, described spline reverse-running section is pressed the spline form design, and with certain pattern draft.
8. as claim 1,2 or 3 described involute outer spline carbide alloy extrusion dies, it is characterized in that, described carbide alloy core rod scribbles coating.
CN201320421420.8U 2013-07-16 2013-07-16 Involute spline cemented carbide extrusion die Expired - Fee Related CN203380205U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320421420.8U CN203380205U (en) 2013-07-16 2013-07-16 Involute spline cemented carbide extrusion die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320421420.8U CN203380205U (en) 2013-07-16 2013-07-16 Involute spline cemented carbide extrusion die

Publications (1)

Publication Number Publication Date
CN203380205U true CN203380205U (en) 2014-01-08

Family

ID=49868734

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320421420.8U Expired - Fee Related CN203380205U (en) 2013-07-16 2013-07-16 Involute spline cemented carbide extrusion die

Country Status (1)

Country Link
CN (1) CN203380205U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406384A (en) * 2013-07-16 2013-11-27 恒锋工具股份有限公司 Hard alloy extrusion die for involute external splines
CN103934296A (en) * 2014-04-14 2014-07-23 安徽省宁国市晨光汽车零部件有限公司 Cold extruding-forming mold for external spline
CN105642696A (en) * 2016-03-29 2016-06-08 西安交通大学 Wedge-shaped variable modulus multipore-lubricating spline shaft extrusion die with surface texture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406384A (en) * 2013-07-16 2013-11-27 恒锋工具股份有限公司 Hard alloy extrusion die for involute external splines
CN103406384B (en) * 2013-07-16 2015-07-08 恒锋工具股份有限公司 Hard alloy extrusion die for involute external splines
CN103934296A (en) * 2014-04-14 2014-07-23 安徽省宁国市晨光汽车零部件有限公司 Cold extruding-forming mold for external spline
CN105642696A (en) * 2016-03-29 2016-06-08 西安交通大学 Wedge-shaped variable modulus multipore-lubricating spline shaft extrusion die with surface texture
CN105642696B (en) * 2016-03-29 2017-12-26 西安交通大学 A kind of wedge shape with Surface Texture becomes the porous lubrication splined shaft extrusion die of modulus

Similar Documents

Publication Publication Date Title
CN101342566B (en) Integral cold forging technique for angular wheel shaft
CN101285520B (en) Tooth thickness variable cylinder profile modified gear and gearing device using same
CN101905250A (en) Chipless forming method for gear stick and section gear through hot extrusion
CN106670734B (en) A kind of processing method of worm-gear type pivoting support
CN203380205U (en) Involute spline cemented carbide extrusion die
CN104858285A (en) Spinning method
CN111318630B (en) Near-net composite rolling forming method for inner ring of tapered roller bearing
CN103111483A (en) High-modulus straight-tooth cylindrical gear cold extrusion technology and special die thereof
CN103742601A (en) Precise and heavy-load type involute beveloid gear-enveloping hourglass worm transmission
Wang et al. A forming technology of spur gear by warm extrusion and the defects control
CN110102589B (en) Method and apparatus for machining gear
CN104481719A (en) Cold-extruded high-precision gasoline engine piston pin
CN103121041A (en) Large-aperture wire-drawing die for metal wire forming
CN202555617U (en) Extrusion die for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections
CN103406384B (en) Hard alloy extrusion die for involute external splines
CN202790431U (en) Spiral bevel gear with wearing-resistant layer attached on surface
CN204628466U (en) Ball screw device and bearing housing assembly thereof
CN107297395A (en) A kind of original gap method of cold extrusion die
CN116393631A (en) Green forming manufacturing method of large-sized bearing ring based on cone roller end rolling blank
CN103627940B (en) Powder metallurgical molybdenum base material applied to hot extrusion die and method for forming die
CN211731535U (en) Gear of steering gear
CN202883144U (en) Novel piston pin
CN107952810B (en) Male splined shaft cold extrusion Accurate Shaping device and manufacturing process
CN103586642A (en) Plate hub core manufacturing technology
CN203356760U (en) Carborundum coated involute spline extrusion knife

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140108

Termination date: 20180716