CN202356561U

CN202356561U - Crank shaft upsetting die

Info

Publication number: CN202356561U
Application number: CN2011204959813U
Authority: CN
Inventors: 焉永才; 吴丽萍; 贺秀香; 邓军疆; 汤健; 胡艳萍
Original assignee: LIAONING 518 INTERNAL-COMBUSTION ENGINE FITTINGS Co Ltd
Current assignee: LIAONING 518 INTERNAL-COMBUSTION ENGINE FITTINGS Co Ltd
Priority date: 2011-12-03
Filing date: 2011-12-03
Publication date: 2012-08-01
Anticipated expiration: 2021-12-03

Abstract

The utility model relates to a crank shaft upsetting die, which comprises an upper movable block, a lower movable block, die sleeves respectively installed in cavities of the upper movable block and the lower movable block, an upper die and a lower die, wherein the upper movable block and the lower movable block are oppositely arranged, and the upper die and the lower die are fixedly installed on the cavities of an upper die sleeve and a lower die sleeve. The crank shaft upsetting die is characterized in that a pin rod hole is respectively arranged on the left sides and the right sides of the upper movable block and the lower movable block, a pin hole matched with the pin rod hole is arranged on the die sleeves and the die respectively, the front end of a pin rod extends in the pin hole on the die to enable the die, the die sleeves and the movable blocks to be locked, and a semi-opening ring type clamping board fixed on a hole opening of the pin rod hole on the movable blocks is matched with a clamping groove arranged on the head of the outer end of the pin rod to fix the pin rod. Users only need pull out or push in the locking pin rod to replace the die, and operation is convenient and safe.

Description

Bent axle upsetting mould

Technical field

The utility model relates to the bending and upsetting mould that uses in the bending and upsetting technology in the crankshaft forging processing, particularly to the improvement of the mould-locking structure of upsetting mould, with realize quick and convenient change the outfit mould with lock.

Background technology

The bending and upsetting method is a kind of processing method of producing bent axle; Its principle is earlier blank to be processed into multidiameter, and the small diameter part branch will form the main shaft diameter and the crank-pin of bent axle, and the particle size part then forms the crank arm of bent axle; Adopt the local heat mode during forging, crooked, jumping-up singly turns moulding simultaneously.

In bent axle upsetting production and processing, because bent axle has a large amount in variety, and each bent axle all has many crank throws, so every kind of product will carry out repeatedly upsetting according to what of crank throw.To with a collection of forging elder generation segmentation heating the same area, local upsetting crank throw, the mould that changes the outfit then to the local upsetting processing of next crank throw, is accomplished until a collection of crankshaft forging upsetting.In this course, the change the outfit speed of mould is very big to the influence of production efficiency.

Bent axle upsetting mould includes the upper and lower motion block of splitting, and is fixedly mounted on the die sleeve in the upper and lower motion block inner chamber respectively and is fixedly mounted on the mould composition in the upper and lower die sleeve inner chamber respectively.

Prior art is in order to install the locking mould, and a kind of mode is on the die joint of mould and die sleeve, to offer rectangular slot, in this groove, is provided with briquetting, is locked mould and die sleeve by briquetting through bolt.This method can be locked mould, but at every turn more during mold exchange, not only wants lift last motion block earlier, and the operator will stand on the very high following motion block of temperature and load and unload briquetting, and operation is that inconvenience is dangerous again, inefficiency.Another kind of mode is on the die sleeve die joint, to bore the top wire hole of attacking two inclinations, and the corresponding jackscrew groove of two inclinations that mills is locked mould and die sleeve with two jackscrews on relevant position, mould side.This method is simple to operate than briquette structure, but the shortcoming that exists is the easy flexural deformation of jackscrew, is difficult for taking out; When serious even mould need be destroyed and could take out jackscrew, influence production, and the screw thread on the jackscrew damages easily; Need often to change, promptly lose time and increase cost.

Summary of the invention

The purpose of the utility model is that the deficiency to prior art is improved, and a kind of mold-locked structure of bent axle upsetting mould, particularly bent axle upsetting mould is provided, with easily and fast, the mould that changes the outfit of safety.

The utility model bent axle upsetting mould includes the upper and lower motion block of splitting; Be fixedly mounted on the die sleeve in the upper and lower motion block inner chamber respectively; The upper and lower mould that is fixedly mounted on respectively on the upper and lower die sleeve inner chamber is formed, and it is characterized in that, offers the pin rod hole respectively in the and arranged on left and right sides of upper and lower motion block; To having the pin-and-hole that matches on the die sleeve He on the mould in the pin rod hole; In the pin rod hole, be slidingly matched and be coated with pin rod, the front end of pin rod extend in the pin-and-hole on the mould, and pin rod cooperates with pin-and-hole on the mould makes mould and die sleeve and motion block locking; On the aperture, pin rod hole of motion block, be fixed with half-open ring type clamp through screw, the draw-in groove of offering on this clamp and the pin rod outer end head cooperates to be fixed pin rod.

The utility model is simple in structure, and is easily manufactured, and the pin rod front end inserts in the pin-and-hole on the mould through the pin-and-hole on the die sleeve, makes the locking of mould and die sleeve.It is at side access of motion block locking pin rod, with half-open ring type clamp fixing and locking pin rod, when mold exchange more, only needs pull out and push and get final product locking pin rod, and it is very convenient to operate.Because the operator is the outside operation that stands in motion block, and is safe and convenient.

Description of drawings

Fig. 1-the 4th, the utility model example structure sketch map, wherein Fig. 1 is a front view, and Fig. 2 is the right view of Fig. 1, and Fig. 3 is the A-A cutaway view of Fig. 2, and Fig. 4 is the B-B cutaway view of Fig. 3.

The specific embodiment

The utility model bent axle upsetting mould includes the last motion block 1a that splits, following motion block 1b; Upper Die-sleeve 2a and lower die-sleeve 2b about being fixedly mounted on respectively in motion block 1a, the 1b inner chamber; Mold 3a about being fixedly mounted on respectively on die sleeve 2a, the 2b inner chamber and bed die 3b form; And arranged on left and right sides at upper and lower motion block 1a, 1b offers pin rod hole 4 respectively; To should pin rod hole 4 at die sleeve 2a, 2b is last and mould 3a, the last pin-and-

hole

20,30 that matches that has of 3b; In pin rod hole 4, being slidingly matched is coated with pin rod 5, and the front end of pin rod 5 extend in the last pin-and-hole 30 of

mould

3a, 3b, and pin rod 5 cooperates with mould 3a, the last pin-and-hole 30 of 3b makes

mould

3a, 3b and die sleeve 2a, 2b and motion block locking; On 4 apertures, pin rod hole of motion block, be fixed with half-open ring type clamp 6 through screw, the draw-in groove of offering on this clamp 6 and the pin rod 5 outer end heads 51 cooperates to be fixed pin rod 5.

Claims

1. bent axle upsetting mould; Include the upper and lower motion block of splitting, be fixedly mounted on the die sleeve in the upper and lower motion block inner chamber respectively and be fixedly mounted on the upper and lower mould composition on the upper and lower die sleeve inner chamber respectively; It is characterized in that; And arranged on left and right sides at upper and lower motion block offers the pin rod hole respectively, and to having the pin-and-hole that matches on the die sleeve He on the mould in the pin rod hole, in the pin rod hole, being slidingly matched is coated with pin rod; The front end of pin rod extend in the pin-and-hole on the mould; Pin rod cooperates with pin-and-hole on the mould makes mould and die sleeve and motion block locking, on the aperture, pin rod hole of motion block, is fixed with half-open ring type clamp through screw, and the draw-in groove of offering on this clamp and the pin rod outer end head cooperates to be fixed pin rod.