CN201316782Y

CN201316782Y - Hot heading separate-part combined-type hard alloy die

Info

Publication number: CN201316782Y
Application number: CNU2008200964929U
Authority: CN
Inventors: 严昉
Original assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Current assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Priority date: 2008-07-15
Filing date: 2008-07-15
Publication date: 2009-09-30
Anticipated expiration: 2018-07-15

Abstract

The utility model relates to a hot heading combined-type hard alloy die, which mainly comprises a template, a punch or an ejector rod, a lower ejector rod, a fixing seat, an upper backing plate, a lower backing plate, a female die, a guide sleeve, an outer casing, a cushion block and a die cushion. The hard alloy die is characterized in that the punch or the ejector rod adopts a split or combined structure, and the two parts are effectively connected in a welding manner; the die at the working part is made of a hard alloy material; and in the case of Type I, the punch is used for upsetting parts with perforated heads, and in the case of Type II, the ejector rod is used for upsetting parts with imperforated heads. The hot heading combined-type hard alloy die has the advantages of simple structure, convenient manufacture, slight cost increase, longer service life as well as higher product quality, qualification rate and productivity.

Description

A kind of hot rammer separate assembling sintered-carbide die

Technical field

The utility model belongs to the metal forming processed mould, hexagonal cylinder head bolt, screw in specifically a kind of employing rammer system method processing, interior hexagonal flower shape bolt, screw, a kind of hot rammer combined type sintered-carbide die of 12 spline bolts.

Background technology

For a long time, the production of securing member mainly is to adopt cold headers, punching press or the processing of machine adding method, part shape more complicated, and the shaping difficulty is bigger, adopts the method production of thermoforming.For those interior hexagonal cylinder head bolt, screws of making by special materials such as high temperature alloy, titanium alloy, stainless steels, interior hexagonal flower shape bolt, screw, parts such as 12 spline bolts, can (high temperature resistant, corrosion-resistant, high strength, antifatigue, anti-oxidant) owing to require to have specific characteristics, adopt the manufacturing of thermoforming processing method.Adding man-hour, used mould is generally the hot piercing mould, and mould is an integral form, and push rod generally adopts high speed steel material.This mould is because physical dimension is little, the part material resistance of deformation reaches the high reason of hot-forming temperature greatly, the red hardness of high-speed steel push rod can not meet the demands, easily softening and lost efficacy, therefore, mould particularly service life of drift or push rod too low, even be difficult to forming part, qualification rate is low, difficult quality guarantee.

Summary of the invention

The purpose of this utility model is at above problem, and a kind of hot rammer separate assembling sintered-carbide die structure is provided.

The technical solution adopted in the utility model is: it mainly is made up of template, mold and punching head or push rod, lower push rod, holder, upper padding plate, lower bolster, former, fairlead, overcoat, cushion block and die-cushion.Holder is contained on the template, and fairlead is loaded on the termination of holder.Upper padding plate is contained on the template in holder.Lower bolster and being placed in the holder outward.Mold and punching head or push rod make into split type, comprise working portion of making by Hardmetal materials (fuse) and the positioning supports part of making by medium carbon steel or steel alloy (positioning sleeve), the interference of alloy fuse is pressed into positioning sleeve and firmly is welded on one, drift or push rod place former, drift or the interference of push rod working portion are pressed into the positioning supports part and are welded on one, the front end of drift or push rod inserts in the forming cavity of former, and can move up and down.Lower push rod places the through hole of die-cushion, and die-cushion passes its end face of fairlead and contacts with former.The hole of die-cushion and the forming cavity of former constitute the global formation die cavity.Former, die-cushion are respectively on the slide block, workbench at punch press.

The advantage that the utility model compared with prior art has: 1,, adopted Hardmetal materials, improved die life, improved product quality, qualification rate and productivity ratio owing to the integral form structure that has changed drift or push rod is the split combining structure.2, simple in structure, easily manufactured, increase cost hardly.

Description of drawings

The drawing of accompanying drawing is described as follows:

Fig. 1 is a mould structure generalized section of the present utility model;

Fig. 2 is the cutaway view of mold and punching head (8);

Fig. 3 is the cutaway view of ejector pin of die set (8).

1. templates among the figure, 2. holder, 3. fairlead, 4. die-cushion, 5. cushion block, 6. upper padding plate, 7. lower bolster, 8. mold and punching head or push rod, 9. former, 10. overcoat, 11. forming cavities, 12. lower push rods.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 shows the utility model overall structure.Holder (2) is fixed on the template (1), and upper padding plate (6) is contained on the template (1) in holder (2).Fairlead (3) is loaded on the termination of holder (2).Former (9) places overcoat (10), and lower bolster (7) and overcoat (10) place holder (2).Cushion block (5) places upper padding plate (6) and lower bolster (7), drift or push rod (8) place former (9), the front end of drift or push rod (8) inserts in the forming cavity (11) of former (9), and drift or push rod (8) can move up and down in former (9) and forming cavity (11).Lower push rod (12) places the through hole of die-cushion (4), and die-cushion (4) passes its end face of fairlead (3) and former (9) joins, and the hole of die-cushion (4) and the forming cavity (11) of former (9) have constituted a global formation die cavity.

Fig. 2 is used to upset the cutaway view of mold and punching head (8) of system head drilling class part.

Fig. 3 is the cutaway view of ejector pin of die set (8) when being used for rammer system head atresia class part.

When concrete the use, alloy fuse (a) as working portion adopts Hardmetal materials to make, positioning sleeve (b) as the positioning supports part adopts medium carbon steel or steel alloy to make, alloy fuse (a) and positioning sleeve (b) coupling part interference fit, alloy fuse (a) is pressed into positioning sleeve (b) and firm welding.

Claims

1, a kind of hot rammer separate assembling sintered-carbide die, mainly form by template, mold and punching head or push rod, lower push rod, holder, upper padding plate, lower bolster, former, fairlead, overcoat, cushion block and die-cushion, it is characterized in that: mold and punching head or push rod (8) are for split type, working portion of being made by Hardmetal materials and the positioning supports of being made by medium carbon steel or steel alloy partly combine, and drift or the interference of push rod working portion are pressed into the positioning supports part and are welded on one.