CN202951818U

CN202951818U - Rear passing-out device of cold heading machine

Info

Publication number: CN202951818U
Application number: CN 201220705716
Authority: CN
Inventors: 李忠明; 姜菊芳
Original assignee: NINGBO SIJIN MACHINERY Co Ltd
Current assignee: Sijin Intelligent Forming Machinery Co ltd
Priority date: 2012-12-19
Filing date: 2012-12-19
Publication date: 2013-05-29
Anticipated expiration: 2022-12-19

Abstract

The utility model discloses a part of a cold heading machine, and in particular relates to a rear passing-out device of a cold heading machine. The rear passing-out device comprises a dead axle, an oscillating bar and a cylinder, and further comprises a guide pipe and a reciprocating lever, wherein one end of the oscillating bar is sleeved on the dead axle; the cylinder is in transmission connection with the middle of the oscillating bar through a cylinder rod; the reciprocating lever is movably plugged in the guide pipe; the reciprocating lever is provided with a notch with an arched bottom surface; a through hole is formed in the pipe wall of the guide pipe; the other end of the oscillating bar is an arched convex surface, and is inserted in the notch of the reciprocating lever after penetrating the through hole; the oscillating bar is in clearance fit with the through hole; and the outer side end of the reciprocating lever is in transmission connection with a push rod of the cold heading machine. The rear passing-out device solves the technical problems of loud noise during working and short service life of the rear passing-out device of the existing cold heading machine which is in impact matching with the push rod. The rear passing-out device disclosed by the utility model is a conventional power part of the cold heading machine, and has advantages of no noise during working, good working stability and long service life.

Description

The rear passing out set of cold headers

Technical field

The utility model relates to the rear passing out set of a kind of parts of cold headers, particularly cold headers.

Background technology

Cold headers are the machines as metal upsetting at normal temperatures processing, have the advantages such as high-speed, high precision when the production and processing due to it, are widely used at present producing in batches the securing members such as nut, bolt.

Rear passing out set is the parts powered by conventional energy of cold headers, and it drives the push rod of cold headers to be moved back and forth, thereby product is carried out to upsetting processing.

But rear passing out set in the market, as shown in Figure 1, roughly comprise dead axle, fork and cylinder, when it provides power to push rod of cold headers, the upper end of fork is directly to beat on push rod, makes cold headers can emit the strike note of " bang bang " when operation, affect the working environment in workshop, and, because the fork of rear passing out set is to clash into to coordinate with the push rod of cold headers, therefore make the service life of push rod and rear passing out set all shorter, less economical.

The utility model content

The purpose of this utility model is that while in order to solve above-mentioned the deficiencies in the prior art, providing a kind of work, noiselessness produces, simultaneously the rear passing out set of the cold headers of long service life.

To achieve these goals, the rear passing out set of the cold headers that the utility model is designed, comprise dead axle, fork and cylinder, one end of fork is socketed on dead axle, cylinder is in transmission connection by the middle part of cylinder rod and fork, described rear passing out set also comprises guide pipe and reciprocating lever, the reciprocating lever motion stops is connected in guide pipe, described reciprocating lever is provided with the recess of a lower arcuate surface, the tube wall of described guide pipe is provided with a through hole, the curved convex surface in the other end of described fork, and be inserted in the recess of reciprocating lever after running through above-mentioned through hole, be the matched in clearance shape between described fork and through hole, the outboard end of reciprocating lever and the push rod of cold headers are in transmission connection.

In said structure, the crankmotion of fork is converted to the linear reciprocating motion of reciprocating lever, thereby drives push rod work, and product is carried out to upsetting processing, in whole production process without noises such as strike notes, long service life simultaneously.

In concrete the use, in order to promote job stability, the outboard end of reciprocating lever described in the utility model and the push rod of cold headers are in transmission connection and refer to: fix by intermediate mass between the outboard end of described reciprocating lever and push rod, make reciprocating lever and push rod be same rectilinear motion state.

The rear passing out set of the cold headers that the utility model obtains, the arc convex of its fork coordinates with the recess of reciprocating lever, when the air cylinder driven fork produces crankmotion, reciprocating lever will carry out linear reciprocating motion in guide pipe, while therefore working, noiselessness produces, traditional rear passing out set of comparing, and working stability of the present utility model is good, long service life, the upsetting machining accuracy of product is high.

The accompanying drawing explanation

Fig. 1 is the structural representation of the rear passing out set of existing cold headers;

Fig. 2 is the structural representation of embodiment 1;

Fig. 3 is the structural representation at A place in Fig. 2;

Fig. 4 is the structural representation that embodiment 1 coordinates with the push rod of cold headers;

Fig. 5 is the structural representation of embodiment 2.

In figure: dead axle 1, reciprocating lever 2, recess 2-1, guide pipe 3, through hole 3-1, cylinder 4, cylinder rod 4-1, fork 5, arc convex 5-1, push rod 6, intermediate mass 7.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Embodiment 1:

Described in Fig. 2 and Fig. 3, the rear passing out set of the cold headers that the present embodiment provides, comprise dead axle 1, fork 5 and cylinder 4, one end of fork 5 is socketed on dead axle 1, cylinder 4 is in transmission connection by the middle part of cylinder rod 4-1 and fork 5, certainly in concrete the use, above-mentioned cylinder 4 also can adopt hydraulic cylinder or other cam traditional mechanisms to replace, described rear passing out set also comprises guide pipe 3 and reciprocating lever 2, reciprocating lever 2 motion stops are connected in guide pipe 3, described reciprocating lever 2 is provided with the recess 2-1 of a lower arcuate surface, the tube wall of described guide pipe 3 is provided with a through hole 3-1, the internal diameter of described through hole 3-1 is 25 centimetres, the curved convex surface 5-1 in the other end of described fork 5, and be inserted in the recess 2-1 of reciprocating lever 2 after running through above-mentioned through hole 3-1, described fork 5 is 15 centimetres near the diameter at through hole 3-1 place, as described in Figure 4, in concrete the use, the outboard end of reciprocating lever 2 and the push rod of cold headers 6 are in transmission connection.

Embodiment 2:

As described in Figure 5, the rear passing out set of the cold headers that provide in the present embodiment, its general structure is consistent with embodiment 1, but in concrete the use, in order to promote job stability, fixing by intermediate mass 7 between the outboard end of reciprocating lever described in the present embodiment 2 and push rod 6, described fixing by intermediate mass 7 can be to connect by intermediate mass 7 dismountable types, also can be fixedly connected with, make reciprocating lever 2 and push rod 6 interlocks, and be same linearity.

Claims

1. the rear passing out set of cold headers, comprise dead axle (1), fork (5) and cylinder (4), one end of fork (5) is socketed on dead axle (1), cylinder (4) is in transmission connection by cylinder rod (4-1) and the middle part of fork (5), it is characterized in that: described rear passing out set also comprises guide pipe (3) and reciprocating lever (2), reciprocating lever (2) motion stops is connected in guide pipe (3), described reciprocating lever (2) is provided with the recess (2-1) of a lower arcuate surface, the tube wall of described guide pipe (3) is provided with a through hole (3-1), the curved convex surface in other end (5-1) of described fork (5), and be inserted in the recess (2-1) of reciprocating lever (2) after running through above-mentioned through hole (3-1), be the matched in clearance shape between described fork (5) and through hole (3-1), the push rod (6) of the outboard end of reciprocating lever (2) and cold headers is in transmission connection.

2. the rear passing out set of cold headers according to claim 1, its feature is in transmission connection and refers at the push rod (6) that is the outboard end of described reciprocating lever (2) and cold headers: fixing by intermediate mass (7) between the outboard end of described reciprocating lever (2) and push rod (6).