CN201275588Y - Improved press forming mould of taper cone inner ring forgeable piece - Google Patents

Improved press forming mould of taper cone inner ring forgeable piece Download PDF

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Publication number
CN201275588Y
CN201275588Y CNU2008201743088U CN200820174308U CN201275588Y CN 201275588 Y CN201275588 Y CN 201275588Y CN U2008201743088 U CNU2008201743088 U CN U2008201743088U CN 200820174308 U CN200820174308 U CN 200820174308U CN 201275588 Y CN201275588 Y CN 201275588Y
Authority
CN
China
Prior art keywords
extrusion
die
cavity
extruding
cone
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
CNU2008201743088U
Other languages
Chinese (zh)
Inventor
谭进军
曹淑明
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CNU2008201743088U priority Critical patent/CN201275588Y/en
Application granted granted Critical
Publication of CN201275588Y publication Critical patent/CN201275588Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/64—Special methods of manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

The utility model discloses an improved extrusion molding mould for a cone inner-ring forged piece, which comprises a die body and an extrusion lower die cavity which is in the shape of a cone. The former extrusion procedure that the forward extrusion and the backward extrusion extrude a large side wall at a time is instead by the extrusion procedure of simple backward extrusion, that is, a blank is extruded into the shape of a cylinder and the large side wall is extruded by the forward extrusion when in punching. The cone-shaped cavity of the extrusion lower die not only has the advantages that the cavity can stand the pressure caused by extruding, little resistance and fine cracks are generated when the blanks are squeezed to flow, and the cavity has long service life, also has the characteristics of good positioning property, that is, the blanks are easy to put rightly in the lower die after heading.

Description

A kind of improved cone forging extrusion molding mould
Technical field
The utility model relates to a kind of mechanical forging mold, especially relates to a kind of improvement of mold for extruding and forming of taper roll bearing inner ring forging.
Background technology
General general knowledge, taper roll bearing inner ring forging is on the production line that several forcing presses are formed, adopt forging extruding-punching technology to finish, its shortcoming is a basic fatigue crack uniformly around (being Extruding die work die cavity R angular position) occurs at forging raceway place, Extruding die damages easily, and service life is low.Cause the main cause of Extruding die work die cavity R angular position fatigue crack to be, in forging extrusion process, if advocate forward extrusion and the simultaneous Force of Combined Backward-Forward Extrusion of backward extrusion that blank is suffered, its extruding force is compared much bigger with simple forward extrusion power or backward extrusion power, because suffered power is big, blank metal suffered resistance in extrusion process is just big, blank flows just big with the frictional force of die, cause the big reason of this resistance and frictional force to be because existing Extruding die die cavity is the step die cavity, because this step die cavity, resistance suffered when the extruding of suffered frictional force in R angle, forging raceway place and blank is flowed is all big, cause the fatigue crack phenomenon to occur, reduced the service life of Extruding die.
Summary of the invention
The purpose of this utility model is the step die cavity at existing Extruding die die cavity exactly, in R angular position, forging raceway place the fatigue crack phenomenon appears easily, influence the Extruding die problem in service life, a kind of improved Extruding die is provided, and this improved Extruding die has long service life, advantage of simple structure.
The purpose of this utility model is achieved through the following technical solutions, and this cone forging extrusion molding mould comprises die body, Extruding die chamber, and described Extruding die chamber is the circular cone die cavity.
Because the Extruding die chamber changes the circular cone die cavity into by the step die cavity, extrusion process once extrudes big shelves limit by original forward extrusion and backward extrusion, change the simple backward extrusion of extrusion process into, only blank is pressed into tubular, the forward extrusion when punching of big shelves limit extrudes, and still the technology with original is the same for the die work die cavity of piercing and shaping die.
The beneficial effects of the utility model: the conical die cavity of this Extruding die, except that have extruding the time bear pressure and blank extruding when flowing resistance little, crackle is light, outside the advantage of long service life, it is good also to have a polarization, and promptly the blank pier is put into die after thick and easily put positive characteristics.
Description of drawings
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 is a cutaway view of the present utility model
Among the figure: 1, die body 2, Extruding die chamber
The specific embodiment
As shown in Figure 1, this this cone forging extrusion molding mould comprises die body 1, Extruding die chamber 2, and described Extruding die chamber 2 is the circular cone die cavity.Because Extruding die chamber 2 changes the circular cone die cavity into by the step die cavity, extrusion process once extrudes big shelves limit by original forward extrusion and backward extrusion, change the simple backward extrusion of extrusion process into, only blank is pressed into tubular, the forward extrusion when punching of big shelves limit extrudes, and still the technology with original is the same for the die work die cavity of piercing and shaping die.

Claims (1)

1, a kind of improved cone forging extrusion molding mould, this cone forging extrusion molding mould comprises die body, Extruding die chamber, it is characterized in that described Extruding die chamber is the circular cone die cavity.
CNU2008201743088U 2008-10-29 2008-10-29 Improved press forming mould of taper cone inner ring forgeable piece Expired - Fee Related CN201275588Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201743088U CN201275588Y (en) 2008-10-29 2008-10-29 Improved press forming mould of taper cone inner ring forgeable piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201743088U CN201275588Y (en) 2008-10-29 2008-10-29 Improved press forming mould of taper cone inner ring forgeable piece

Publications (1)

Publication Number Publication Date
CN201275588Y true CN201275588Y (en) 2009-07-22

Family

ID=40893167

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201743088U Expired - Fee Related CN201275588Y (en) 2008-10-29 2008-10-29 Improved press forming mould of taper cone inner ring forgeable piece

Country Status (1)

Country Link
CN (1) CN201275588Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102397964A (en) * 2010-09-10 2012-04-04 江苏威鹰机械有限公司 Energy accumulator shell forging process
CN103415361A (en) * 2011-03-10 2013-11-27 谢夫勒科技股份两合公司 Method for producing a bearing ring, in particular for a tapered roller bearing
CN113414331A (en) * 2021-06-18 2021-09-21 临清宇联轴承科技有限公司 Narrow series thin-wall large-diameter bearing ring two-in-one blank forming process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102397964A (en) * 2010-09-10 2012-04-04 江苏威鹰机械有限公司 Energy accumulator shell forging process
CN102397964B (en) * 2010-09-10 2013-10-09 江苏威鹰机械有限公司 Energy accumulator shell forging process
CN103415361A (en) * 2011-03-10 2013-11-27 谢夫勒科技股份两合公司 Method for producing a bearing ring, in particular for a tapered roller bearing
CN113414331A (en) * 2021-06-18 2021-09-21 临清宇联轴承科技有限公司 Narrow series thin-wall large-diameter bearing ring two-in-one blank forming process

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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: 20090722

Termination date: 20091130