CN204122677U

CN204122677U - Roller bearing assembling die

Info

Publication number: CN204122677U
Application number: CN201420608538.6U
Authority: CN
Inventors: 张亚纳; 郭昊卿
Original assignee: LUOYANG WEICHUANG BEARING MOULD CO Ltd
Current assignee: HENAN WEICHUANG BEARING PRECISION TECHNOLOGY Co.,Ltd.
Priority date: 2014-10-21
Filing date: 2014-10-21
Publication date: 2015-01-28
Anticipated expiration: 2024-10-21

Abstract

Roller bearing assembling die, comprise outer die casing, along its central shaft to being provided with middle mould successively in outer die casing, bed die and supporting pad, core body is embedded with in the clear opening that bed die center is arranged, and the upper and lower end face of core body is mutually concordant with the upper and lower end face of bed die respectively, the bottom of middle mould is in from top to bottom external diameter is diminishing, thus make bed die upper surface have the region do not contacted with middle mould of an annular, the upper surface of core body contacts with the lower surface of middle mould completely, and core body top is provided with the groove that the through hole arranged with middle mould center docks formation work die cavity, the center of core body and supporting pad is provided with through introduction hole.In the utility model, core body is mutually concordant with the upper and lower end face of bed die, avoids because bed die hardness causes core body sinking or bed die to occur the problem of crackle; The bottom of middle mould is taper type, decreases the contact area of middle mould and bed die, is easy to fabrication design, and disintegrating slag thing can be avoided to be mixed in defect between middle mould and bed die.

Description

Roller bearing assembling die

Technical field

The utility model relates to the diel in machined, specifically a kind of roller bearing assembling die.

Background technology

Roller bearing is as the one of bearing, be widely used in the fields such as various big machinery, vehicle, roller in roller bearing utilizes pressing to produce in the prior art, the shape and size of mould are mated with roller to be processed, then use drift and die that material is squeezed into predetermined shape.

Roller die of the prior art is made up of middle mould and counterdie etc., and cold headers make roller or other products with cold-heading method, is widely used in machined manufacturing industry.In prior art, the counterdie edge core type counterdie that the alloy core in inside, housing upper end forms by housing and interference fit, according to the length of roller bearing to be processed in real work, adjustment alloy core bottom with counterdie bottom vertical range, and when roller bearing is longer, when molding rollers, easily there is crackle in the bottom of counterdie; Simultaneously, the top of counterdie is arranged on for realizing alloy core, need ensure that counterdie external shell has rational hardness, when housing hardness is too small, alloy core is easily sunk, and makes to there is gap between alloy core and middle mould, easily because slag inclusion phenomenon causes the Quality Down of roller, when housing hardness is excessive, easily there is crackle in the contact site bottom counterdie and alloy core, causes the fracture of counterdie to scrap.And, in order to the damage preventing the shearing force of cold headers when punching press from causing mould and product, in requirement, fit completely in the lower surface of mould and the upper surface of counterdie, this just require that the flatness of the two is higher, and actual machined is often difficult to reach such flatness in producing, the gap of the two contact surface is easily because slag inclusion phenomenon causes the Quality Down of roller.

Utility model content

Technical problem to be solved in the utility model overcomes existing roller bearing mould easily because slag inclusion phenomenon causes product quality to decline, and provides a kind of roller bearing assembling die.

The utility model for the adopted technical scheme that solves the problem is: roller bearing assembling die, comprise outer die casing, along its central shaft to being provided with middle mould successively in outer die casing, bed die and supporting pad, core body is embedded with in the clear opening that bed die center is arranged, and the upper and lower end face of core body is mutually concordant with the upper and lower end face of bed die respectively, the bottom of middle mould is in the from top to bottom diminishing taper type of external diameter, thus make bed die upper surface have the region do not contacted with middle mould of an annular, the upper surface of described core body contacts with the lower surface of middle mould completely, and core body top is provided with the groove that the through hole arranged with middle mould center docks formation work die cavity, the center of core body and supporting pad is provided with through introduction hole.

In the utility model, the lower surface of middle mould can not contact with the upper surface of bed die, now, contacts completely with core body upper surface in bottom mould in taper type; Or, the lower surface of middle mould on the basis contacted completely with core body upper surface, the lower surface of middle mould also with the upper surface part contact of bed die.Adopt above-mentioned set-up mode, the contact area of mould and bed die in can reducing, compared with prior art, reduce the requirement of the flatness for middle mould and bed die contact surface.

Be embedded with in described heelpiece and change plug, during its effect: the introduction hole arranged in heelpiece is convenient to the product ejection die by shaping, when projecting motion causes replacing plug inter deterioration, can change it, compared with prior art, avoid changing whole heelpiece, reduce costs.

The beneficial effects of the utility model: 1, in this assembling die, core body is mutually concordant with the upper and lower end face of bed die, compared with prior art, avoid because bed die hardness causes core body sinking or bed die to occur the problem of crackle, for meeting core body and bed die interference fit, the hardness of bed die is not easily too high, and the hardness of the supporting pad that bed die bottom is arranged is unrestricted, and supporting pad can as accessory for reducing the volume of bed die and the impulsive force suffered by dispersion bed die.

2, the through hole that bed die center is arranged is clear opening, is easy to processing and realizes, good manufacturability relative to stepped hole of the prior art; And the core body be arranged in this clear opening, be easy to upon wear change, increase work efficiency.

3, in this assembling die, the bottom of middle mould is in the from top to bottom diminishing taper type of external diameter, thus make bed die upper surface have the region do not contacted with middle mould of an annular, decrease the contact area of middle mould lower surface and bed die upper surface, avoid in traditional moulds because requiring that middle mould and bed die required contact surface of fitting completely reaches the flatness of high requirement, the taper type of middle mould bottom surface is easy to fabrication design, reduces mach difficulty; Due to the lower surface of middle mould to contact with core body or with bed die part contact, middle mould lower surface small size flatness is easy to machined and realizes, the disintegrating slag thing avoiding tradition to produce at work is easily mixed in the defect between middle mould and bed die, and then avoid the damage causing mould and roller during press work, reduce the percent defective of roller.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of embodiment 1;

Fig. 2 is the schematic diagram of embodiment 2.

Reference numeral: 1, outer die casing, 2, middle mould, 20, external mold, 21, internal mold, 3, bed die, 4, supporting pad, 5, change plug, 6, core body, 7, groove, 8, work die cavity, 9, introduction hole.

Detailed description of the invention

Below in conjunction with two embodiments, the utility model is described further, but not every can embodiment.

Embodiment 1

Roller bearing assembling die, comprise outer die casing 1, along its central shaft to being provided with middle mould 2, bed die 3 and supporting pad 4 successively in outer die casing 1, core body 6 is embedded with in the clear opening that bed die 3 center is arranged, and the upper and lower end face of core body 6 is mutually concordant with the upper and lower end face of bed die 3 respectively, be easy to change core body 6, save cost.

The bottom of described middle mould 2 is in the from top to bottom diminishing taper type of external diameter, thus make bed die 3 upper surface have the region do not contacted with middle mould 2 of an annular, the upper surface of described core body 6 contacts with the lower surface of middle mould 2 completely, the upper surface of bed die 3 does not contact with the lower surface of middle mould 2, reduce the contact area of middle mould 2 and bed die 3, reduce flatness requirement, avoid and cause slag inclusion not because of flatness and then destroy mould and increase the problem of product percent defective.Described core body 6 top is provided with the groove 7 that the through hole arranged with middle mould 2 center docks formation work die cavity 8, and the center of core body 6 and supporting pad 4 is provided with through introduction hole 9, is embedded with the replacing plug 5 of annular in supporting pad 4.

Embodiment 2

Roller bearing assembling die, comprise outer die casing 1, along its central shaft to being provided with middle mould 2, bed die 3 and supporting pad 4 successively in outer die casing 1, core body 6 is embedded with in the clear opening that bed die 3 center is arranged, and the upper and lower end face of core body 6 is mutually concordant with the upper and lower end face of bed die 3 respectively, the bottom of described middle mould 2 is in the from top to bottom diminishing taper type of external diameter, thus make bed die 3 upper surface have the region do not contacted with middle mould 2 of an annular, the upper surface of described core body 6 contacts with the lower surface of middle mould 2 completely, the upper surface of bed die 3 and the lower surface part contact of middle mould 2.Described core body 6 top is provided with the groove 7 that the through hole arranged with middle mould 2 center docks formation work die cavity 8, and the center of core body 6 and supporting pad 4 is provided with through introduction hole 9, is embedded with the replacing plug 5 of annular in supporting pad 4.

Claims

1. roller bearing assembling die, it is characterized in that: comprise outer die casing (1), along its central shaft to being provided with middle mould (2) successively in outer die casing (1), bed die (3) and supporting pad (4), core body (6) is embedded with in the clear opening that bed die (3) center is arranged, and the two ends up and down of core body (6) are mutually concordant with the upper and lower end face of bed die (3) respectively, the bottom of middle mould (2) is in the from top to bottom diminishing taper type of external diameter, thus make bed die (3) upper surface have the region do not contacted with middle mould (2) of an annular, the upper surface of described core body (6) contacts with middle mould (2) lower surface completely, and core body (6) top is provided with the groove (7) that the through hole arranged with middle mould (2) center docks formation work die cavity (8), the center of core body (6) and supporting pad (4) is provided with through introduction hole (9).

2. roller bearing assembling die according to claim 1, is characterized in that: the lower surface of described middle mould (2) does not contact with the upper surface of bed die (3).

3. roller bearing assembling die according to claim 1, is characterized in that: the lower surface of described middle mould (2) and the upper surface part contact of bed die (3).

4. roller bearing assembling die according to claim 1, is characterized in that: be embedded with in described supporting pad (4) and change plug (5).