CN101347892A

CN101347892A - Technique for molding hardware fittings ball and socket

Info

Publication number: CN101347892A
Application number: CNA2008101245744A
Authority: CN
Inventors: 征大生
Original assignee: RUGAO DASHENG LINE EQUIPMENT CO Ltd
Current assignee: RUGAO DASHENG LINE EQUIPMENT CO Ltd
Priority date: 2008-08-26
Filing date: 2008-08-26
Publication date: 2009-01-21

Abstract

The invention discloses a molding technique of a hardware ball socket; round steel is firstly selected, the round steel is produced into a die forging blank of the ball socket, then die forging forming treatment of the ball socket and an orifice round angle of the inner cavity of the ball socket is carried out, and finally the inner cavity of the ball socket is hollowed. Forging forming technique is adopted for processing the orifice round angle of the inner cavity of the ball socket in the treatment of the ball socket; the forging blank of the ball socket which is molded by cross wedge rolling and still at high temperature is instantly placed in a die and treated with die forging at a certain temperature, and finally stands still and is cooled. The molded round angle is uniform, has smooth transition, does not need to be further processed and can save materials; the orifice round angle of the inner cavity of the ball socket has smooth transition and is easy to galvanize and the clad layer is not likely to drop off.

Description

A kind of moulding process of hardware fittings ball and socket

Technical field

The present invention relates to a kind of production method of line hardware, be specifically related to a kind of fillet evenly, transitions smooth, can one-time formed hardware fittings ball and socket inner chamber aperture fillet forging molding process.

Background technology

The moulding of hardware fittings ball and socket inner chamber aperture fillet generally has two kinds of methods, a kind ofly wears into type for artificial hand, another kind ofly is the machined moulding.The shortcoming of manually wearing into type is: time-consuming, effort, cost height, efficient are low, and fillet is inhomogeneous, moulding is poor, the emery wheel ash fouling working environment that incompatibility industrialized production and grinding produce; Though adopt the method for machined moulding to solve the uneven problem of fillet, it is time-consuming, effort, cost height, inefficient shortcoming still exist.

Summary of the invention

The invention provides a kind of fillet evenly, transitions smooth, can one-time formed hardware fittings ball and socket inner chamber aperture fillet forging molding process.

In order to solve above technical problem, the moulding process of a kind of hardware fittings ball and socket of the present invention is chosen round steel earlier, adopts cross wedge rolling to be rolled into ball-and-socket die forging forging stock in round steel, then ball-and-socket is carried out ball-and-socket inner chamber aperture fillet and handles, and at last ball-and-socket is carried out machined and empties.

For make ball-and-socket inner chamber aperture fillet can be evenly, transitions smooth and one-shot forming, ball-and-socket inner chamber aperture fillet during ball-and-socket of the present invention is handled adopts forging molding, the described ball-and-socket inner chamber of technology aperture fillet forging molding be specially die forging, step is as follows: cross wedge rolling is rolled into hot ball-and-socket die forging forging stock places mould, when temperature is 850 ℃-950 ℃, carry out die forging and forge, leave standstill at last, cool off.

The advantage of above technology is: 1, ball-and-socket inner chamber aperture fillet adopts forging molding process can disposablely make the fillet moulding of ball-and-socket inner chamber aperture, the fillet of institute's moulding evenly, transitions smooth, need not to reprocess; 2, the ball-and-socket inner chamber aperture round-corner transition of forging molding is level and smooth, be easy to zinc-plated, and coating difficult drop-off; 3, increased forging molding, saved rough turn crimping cylindrical, rough turn ball-and-socket, mill inner chamber aperture fillet; 4, save raw material, reduced the Vehicle Processing workload, improved the quality of inner chamber aperture fillet, do not needed to grind inner chamber aperture fillet.

The specific embodiment

Choose round steel earlier, to adopt cross wedge rolling to be rolled into ball-and-socket die forging forging stock forges and presses ball-and-socket inner chamber aperture fillet, concrete forging and pressing mode is die forging, step is as follows: the bulb of gold utensil round steel bar is partly heated, the ball-and-socket forge hot base ball-and-socket that adopts cross wedge rolling to be rolled into then also is at ball-and-socket forge hot base ball-and-socket and places mould under the hot situation immediately, carries out die forging and forge when temperature is 850 ℃-950 ℃, leave standstill at last, cool off, the fillet moulding of ball-and-socket aperture.

Then, on gold utensil partially the plane get length, drill centers, brill R pin-and-hole, finish turning crimping cylindrical, finish turning ball-and-socket, mill the ball-and-socket inner chamber, boring, become finished product at last.Get length, drill centers to the zinc-plated prior art that is, in this no longer repeat specification from inclined to one side plane on gold utensil.

Claims

1, a kind of moulding process of hardware fittings ball and socket is chosen round steel earlier, adopts cross wedge rolling to be rolled into ball-and-socket die forging forging stock in round steel, carries out ball-and-socket and ball-and-socket inner chamber aperture fillet die-forging forming then and handles, and at last the ball-and-socket inner chamber is milled processing and empties; It is characterized in that: the ball-and-socket inner chamber aperture fillet during described ball-and-socket is handled adopts forging molding process.

2, the moulding process of a kind of hardware fittings ball and socket according to claim 1, it is characterized in that: the concrete steps of described ball-and-socket inner chamber aperture fillet forging molding are as follows: the ball-and-socket forging stock that also is in high temperature of cross wedge rolling roll forming is placed mould immediately, when temperature is 850 ℃-950 ℃, carry out die forging and forge, leave standstill at last, cool off.