CN108941403A

CN108941403A - Ring-like inside groove class part cold-heading molding technique

Info

Publication number: CN108941403A
Application number: CN201811156746.6A
Authority: CN
Inventors: 张骏
Original assignee: Jiangsu Tianyi Cold Heading Ltd By Share Ltd
Current assignee: Jiangsu Tianyi Cold Heading Ltd By Share Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2018-12-07

Abstract

A kind of ring-like inside groove class part cold-heading molding technique, it is characterized in that linear raw material to be cut to cylindrical embryo material (6) by the material cutting mechanism of cold headers the following steps are included: step 1) is calculated according to the bulking value of final products determines the length and diameters of strands；Step 2) carries out integer using the blank (6) that the first station cold upsetting die of car obtains step 1, obtains blank radiused corner (7)；Blank (6) that step 3) is obtained step 2 using second station cold upsetting die of car carries out integer, and blank (6) are overturn after 180 degree integer again by the transport mechanism of cold headers.Production technology of the invention, whole process is with multistation metal cold-heading deformation molding Technology design, the highest forming technique means in cold-heading technology are used, a whole set of correct production mode of texturing of this metal parts metal fluid modification has been determined and has completed size, precision height and good product consistency, not by machining equipment.

Description

Ring-like inside groove class part cold-heading molding technique

Technical field

The present invention relates to technical fields of mechanical processing, are a kind of ring-like inside groove class part cold-heading molding technique.

Background technique

Shown in a, Fig. 2 b as shown in Figure 1, Figure 2, vehicle brake pipe joint is largely used in the brake system of automobile, in industry very More parts have the needs of grooving on inner bore of part wall, and especially disappear oil ring groove 2, such as the vehicle brake pipe joint of Fig. 1, manufacture Mode usually first processes the ball-type head such as Fig. 2 a, Fig. 2 b, and the internal oil ring groove that disappears is gone out by turnery processing.But this ring Slot is used only to connection oil circuit, and actual use Shang pair cross-section product requires and unrelated cross sectional shape.Present main producer Formula is to be respectively produced ball-type head 1, the oil ring groove 2 that disappears, bar portion 3, lining core 4 and tail sleeve 5, then various pieces are welded together, However the ball-type head 1 of the prior art, the oil ring groove 2 that disappears, bar portion 3, lining core 4 and tail sleeve 5 are machined components, and mutually it Between more demanding cooperation, be machined time-consuming and laborious, time cost and cost of labor are higher, and use a large amount of skiver Skill generates a large amount of waste material expense bits, and waste is serious, and matching requirements are high between several components, and a component is bad to will lead to entirety Part is inferior, relatively low at flat rate.High, the not high defect of precision that there is also work working hour expenses simultaneously.

Summary of the invention

The purpose of the present invention is to provide a kind of ring-like inside groove class part cold-heading molding technique, works of the invention of the invention Skill is in cold-heading deformation technique, and cold-heading goes out the special process of this annular groove, it is not necessary to which specially cutting obtains this annular groove again.This The ball joint that kind mode is produced, Vehicle Processing amount greatly reduce than traditional approach, save a large amount of raw material.

The technical scheme is that

A kind of ring-like inside groove class part cold-heading molding technique, it is characterized in that the following steps are included:

Step 1) calculates the length and diameter for determining strands according to the bulking value of final products, by the blank of cold headers Linear raw material are cut to cylindrical embryo material by mechanism；

Step 2) carries out integer using the blank that the first station cold upsetting die of car obtains step 1, obtains blank radiused corner；

Step 3) carries out integer, and the biography for passing through cold headers using the blank that second station cold upsetting die of car obtains step 2 Send mechanism that blank is overturn integer again after 180 degree；

Step 4) is squeezed the blank both ends that step 3 obtains using 3rd station cold upsetting die of car, forms 2 ends up and down Face, and the first preexisting hole and the second preexisting hole of two sides are formed on end face respectively；

First preexisting hole at the blank both ends that step 5) is obtained step 4 using the 4th station die of cold heading machine and second is in advance Pore-forming is pressed further by, and forms the first deep hole and the second deep hole；

Step 6) is penetrated through the first deep hole that step 5 obtains and the second deep hole using the 5th station die of cold heading machine, Inner hole is formed, and waste material is gone out；

Step 7) uses the 6th station die of cold heading machine, and punch die rushes stick and is introduced into intermediate inner hole, and then main mould and punch die close Hold together and the workpiece that step 6 obtains is flattened, workpiece outer wall enters the pre- cavity of punch die and the pre- cavity of main mould, and inside workpiece can nature Form the ring shaped slot of indent.

The pre- cavity of punch die is spherical or rectangular；The pre- cavity of main mould is spherical or rectangular.

The beneficial effects of the present invention are:

Production technology of the invention, whole process are to form Technology design with multistation metal cold-heading deformation, have been used cold Highest forming technique means in upsetting technology, it is determined that a whole set of correctly production change of this metal parts metal fluid modification Shape mode and completion size, precision height and good product consistency, not by the shadow of machining equipment, personnel and operating habit It rings.

Technique of the invention is in cold-heading deformation technique, and cold-heading goes out the special process of this annular groove, it is not necessary to specially cut again It cuts and obtains this annular groove, be still able to satisfy actual operation requirements.

The present invention realizes this metal parts technique that continuous production is processed on multistage cold former.

Cold upsetting production technique of the invention makes the production of the long sleeve metal parts of through-hole can be with:

1, high-volume efficiently production, reaches one second product, saves 95% or more manpower, save the time 95% with On；

2,80% or more raw material are saved；

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the vehicle brake pipe joint part using machining of the prior art.

Fig. 2 a is one of the structural schematic diagram of the vehicle brake pipe joint part using machining of the prior art.

Fig. 2 b is the second structural representation of the vehicle brake pipe joint part using machining of the prior art.

Fig. 3 is the structural schematic diagram of blank of the invention.

Fig. 4 is the structural schematic diagram of the workpiece of the invention after the processing of the first cold upsetting die of car.

Fig. 5 is the structural schematic diagram of the workpiece of the invention after the processing of the second cold upsetting die of car.

Fig. 6 is the structural schematic diagram of the workpiece of the invention after the processing of third cold upsetting die of car.

Fig. 7 is the structural schematic diagram of the workpiece of the invention after the processing of the 4th cold upsetting die of car.

Fig. 8 is the structural schematic diagram of the waste material of the workpiece of the invention after the processing of the 5th cold upsetting die of car and punching.

Fig. 9 is one of the finished product structure schematic diagram of the invention after the processing of the 6th cold upsetting die of car.

Figure 10 is the two of the finished product structure schematic diagram of the invention after the processing of the 6th cold upsetting die of car.

Figure 11 is the structural schematic diagram before the 6th cold upsetting die of car cold-heading of the invention.

Figure 12 be after the 6th cold upsetting die of car cold-heading of the invention before structural schematic diagram.

Specific embodiment

The invention will be further described below in conjunction with the accompanying drawings:

Such as Fig. 1 to Figure 12, a kind of ring-like inside groove class part cold-heading molding technique, comprising the following steps:

Step 1) such as Fig. 3, the length and diameter for determining strands is calculated according to the bulking value of final products, by cold headers Material cutting mechanism linear raw material are cut to cylindrical embryo material 6；

Step 2) such as Fig. 4 carries out integer using the blank 6 that the first station cold upsetting die of car obtains step 1, obtains blank circle Angle 7；

Step 3) such as Fig. 5 carries out integer using the blank 6 that second station cold upsetting die of car obtains step 2, and passes through cold-heading Blank 6 is overturn integer again after 180 degree by the transport mechanism of machine；

Step 4) such as Fig. 6, is squeezed 6 both ends of blank that step 3 obtains using 3rd station cold upsetting die of car, in formation Lower 2 end faces 10, and the first preexisting hole 9 and the second preexisting hole 11 of two sides are formed on end face 10 respectively；

Step 5) such as Fig. 7, uses first preexisting hole 9 at 6 both ends of blank that the 4th station die of cold heading machine obtains step 4 It is pressed further by with the second preexisting hole 11, forms the first deep hole 90 and the second deep hole 110；

Step 6) such as Fig. 8, the first deep hole 90 and the second deep hole for being obtained step 5 using the 5th station die of cold heading machine 110 are penetrated through, and form inner hole 13, and waste material is gone out；

Step 7), such as Fig. 9, using the 6th station die of cold heading machine, punch die rushes stick 14 and is introduced into intermediate inner hole 13, then leads Mould 17 and punch die 16, which close up, flattens the workpiece that step 6 obtains, and workpiece outer wall enters the pre- cavity 19 of punch die and main mould is pre- recessed Chamber 20, the ring shaped slot 21 of inside workpiece meeting self-assembling formation indent.

The pre- cavity 19 of punch die is spherical or rectangular；The pre- cavity 20 of main mould is spherical or rectangular.

It also include the process for the extra extruded stock polishing removal that squeezing action generates in above-mentioned steps.

The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention Think and range is defined, under the premise of not departing from design concept of the present invention, ordinary engineering and technical personnel is to this hair in this field The all variations and modifications that bright technical solution is made should all fall into protection scope of the present invention, the claimed skill of the present invention Art content is all described in the claims.

Claims

1. a kind of ring-like inside groove class part cold-heading molding technique, it is characterized in that the following steps are included:

Step 1) calculates the length and diameter for determining strands according to the bulking value of final products, by the material cutting mechanism of cold headers Linear raw material are cut to cylindrical embryo material (6)；

Step 2) carries out integer using the blank (6) that the first station cold upsetting die of car obtains step 1, obtains blank radiused corner (7)；

The blank (6) that step 3) is obtained step 2 using second station cold upsetting die of car carries out integer, and the transmission for passing through cold headers Blank (6) are overturn integer again after 180 degree by mechanism；

Step 4) is squeezed blank (6) both ends that step 3 obtains using 3rd station cold upsetting die of car, forms 2 ends up and down Face (10), and the first preexisting hole (9) and the second preexisting hole (11) of two sides are formed on end face (10) respectively；

First preexisting hole (9) and second at blank (6) both ends that step 5) is obtained step 4 using the 4th station die of cold heading machine Preexisting hole (11) is pressed further by, and forms the first deep hole (90) and the second deep hole (110)；

The first deep hole (90) and the second deep hole (110) that step 6) is obtained step 5 using the 5th station die of cold heading machine carry out Perforation forms inner hole (13), and waste material is gone out；

Step 7) uses the 6th station die of cold heading machine, and punch die rushes stick (14) and is introduced into intermediate inner hole (13), then main mould (17) Close up with punch die (16) and the workpiece that step 6 obtains is flattened, workpiece outer wall enters the pre- cavity of punch die (19) and main mould is pre- recessed Chamber (20), the ring shaped slot (21) of inside workpiece meeting self-assembling formation indent.

2. a kind of ring-like inside groove class part cold-heading molding technique according to claim 1, it is characterized in that the punch die is pre- recessed Chamber (19) is spherical or rectangular；The pre- cavity of main mould (20) is spherical or rectangular.