CN205614004U

CN205614004U - Steel ball cold -heading mould improves structure

Info

Publication number: CN205614004U
Application number: CN201620380523.8U
Authority: CN
Inventors: 陈道义; 徐宜广
Original assignee: HUBEI QIANCHAO PRECISION PARTS Co Ltd
Current assignee: HUBEI QIANCHAO PRECISION PARTS Co Ltd
Priority date: 2016-04-28
Filing date: 2016-04-28
Publication date: 2016-10-05
Anticipated expiration: 2026-04-28

Abstract

The utility model relates to a steel ball cold -heading mould improves structure, including die block mold core and die mold core, die block mold core and die mold core all adopt the wolfram steel material to make, the die cavity section of this die block mold core and die mold core connects into semiellipse shape by two decentraction semicircles are smooth, amphitypy chamber section formation die cavity behind this die block mold core and the die mold core compound die, this die cavity is the ellipse, die block mold core and the die cavity section roughness of die mold core be 0.2 mu m, die block mold core and die mold core the profile is connected to the die cavity is 100 at the contained angle of utmost point post orientation 120 the beneficial effects of the utility model are that: through using this steel ball cold -heading mould improves structure, realize improving material utilization rate, improve the qualified level of product manufacture, reduce photosphere allowance, improve product interior tissue structure to improve mould life.

Description

Steel ball cold heading die improved structure

Technical field

This utility model belongs to technical field of mold, particularly relates to a kind of steel ball cold heading die improved structure.

Background technology

Original mould structure is to use cone cydariform or waist-drum-shaped (as shown in Figure 1), and core material uses mould steel, and during cold-heading, the two poles of the earth become Shape power is relatively big, causes following problem: steel-ball mill annulus thickness reaches 2.5mm, steel-ball mill annulus external diameter 2mm more than bigger than ball base, makes Become the serious waste of steel；Tack is more, causes domestic steel ball manufacturer qualification rate the lowest, and the market competitiveness is poor；Because adding spare time Amount is big, time-consumingly reaches 6-7 hour/dish in photosphere is processed, and causes power wastage, simultaneously too much, to environmental conservation because of grinding allowance Bring adverse effect；The two poles of the earth and annulus surplus are big, because after processing capacity, finished product steel ball surface fibrous tissue of appearing is more, have a strong impact on Crushing load and the steel ball of steel ball promote service life；Mould core many employings evanohm, deflection is big, and the life-span is short, inadaptable Requirements of mass production.

Summary of the invention

The purpose of this utility model is the deficiency overcoming prior art to exist, and provides a kind of steel ball cold heading die improved structure, Improve stock utilization, improve the qualified level of product manufacturing, reduce photosphere allowance, improve interiors of products histological structure, and Improve die life.

The purpose of this utility model completes by following technical solution, including bed die core rod and mold core of clicking die, the described end Mould core rod all uses wolfram steel material to make with mold core of clicking die, and the die cavity section of this bed die core rod and mold core of clicking die is by two the most not partly Circular arc is smoothly connected into half elliptic, and two die cavity sections after this bed die core rod and mold core of clicking die matched moulds form die cavity, and this die cavity is Oval.

As preferably, the die cavity cross-sectional face roughness of described bed die core rod and mold core of clicking die is 0.2 μm.

As preferably, the die cavity of described bed die core rod and mold core of clicking die connects the profile angle in pole direction and is 100-120 °.

The beneficial effects of the utility model are: by using this steel ball cold heading die improved structure, it is achieved improve stock utilization, Improve the qualified level of product manufacturing, reduce photosphere allowance, improve interiors of products histological structure, and improve die life.

Accompanying drawing explanation

Fig. 1 is existing steel ball cold heading die structural representation.

Fig. 2 is steel ball cold heading die structural representation of the present utility model.

Fig. 3 is die cavity structure for amplifying schematic diagram at the A of Fig. 2.

Label in accompanying drawing is respectively as follows: 1, bed die core rod；2, mold core of clicking die；3, die cavity section.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model done detailed introduction: as shown in accompanying drawing 2,3, this utility model includes bed die mould Core 1 and mold core of clicking die 2, described bed die core rod 1 and mold core of clicking die 2 all use wolfram steel material to make, this bed die core rod 1 He The die cavity section 3 of mold core of clicking die 2 is smoothly connected into half elliptic by two not concentric semi arches, this bed die core rod 1 and punch die mould Two die cavity sections 3 after the 2-in-1 mould of core form die cavity, and this die cavity is oval.

Die cavity section 3 surface roughness of described bed die core rod 1 and mold core of clicking die 2 is 0.2 μm.

The die cavity of described bed die core rod 1 and mold core of clicking die 2 connects the profile angle in pole direction and is 100-120 °.

Using method of the present utility model is: first bed die core rod 1 and mold core of clicking die 2 are respectively charged in die sleeve, then dress Part loads on cold headers, carries out cold-heading processing by normal procedure, just can get expected result.

This utility model is not limited to above-mentioned embodiment, no matter making any change, every employing on its shape or material are constituted Structure provided by the utility model designs, and is all a kind of deformation of the present utility model, is all considered as protecting model at this utility model Within enclosing.

Claims

1. a steel ball cold heading die improved structure, including bed die core rod (1) and mold core of clicking die (2), it is characterised in that: institute The bed die core rod (1) stated all uses wolfram steel material to make with mold core of clicking die (2), this bed die core rod (1) and mold core of clicking die (2) Die cavity section (3) by two with one heart semi arches be smoothly connected into half elliptic, this bed die core rod (1) and mold core of clicking die (2) Two die cavity sections (3) after matched moulds form die cavity, and this die cavity is oval.

Steel ball cold heading die improved structure the most according to claim 1, it is characterised in that: described bed die core rod (1) It is 0.2 μm with die cavity section (3) surface roughness of mold core of clicking die (2).

Steel ball cold heading die improved structure the most according to claim 1, it is characterised in that: described bed die core rod (1) Connect the profile angle in pole direction with the die cavity of mold core of clicking die (2) and be 100-120 °.