CN2721279Y

CN2721279Y - Cake forged tool for forging press

Info

Publication number: CN2721279Y
Application number: CN 200420082130
Authority: CN
Inventors: 杨磊
Original assignee: Shanghai No 5 Steel Co ltd Bao
Current assignee: Baosteel Special Steel Co Ltd
Priority date: 2004-08-24
Filing date: 2004-08-24
Publication date: 2005-08-31
Anticipated expiration: 2014-08-24

Abstract

The utility model relates to a cake forged tool for forging press which is used for the heat processing of large-scale metal cake elements. The cake forged tool for forging is characterized in that the cake forged tool of a right side work stake and a left side clamp handgrip is an 'integrated metal forging'; the work stake is a cuboid which has the notch of a groove and the length of L 1 = 1. 4 L, the width of B 1 = 0. 6 B and the thickness of H 1 = 0. 3 B; 'the notch of the groove of an oblong block' which is arranged at the thickness direction of the work stake in central distribution has the length of 0. 2 L 1, the width of H 1 and the depth of 30 mm; a cuboid clamp handgrip has the length of 0. 4 L 1, the width of B 1 and the thickness of H 1; L and B are respectively the length and the width of the lower surface of the upper work stake. When working, with the addition of the resistance of the cross section of a forging stock, the lower work stake is rotated, the forged forgings of the upper work stake (the upper work stake-> the wide side of the cake forged tool-> the narrow side) is changed, and simultaneously the notch of the groove is used for improving the concave center defects of cake elements. The cake forged tool for forging press has the characteristics of simple structure and easy fabrication, with convenient usage, and breaks through the technical barrier that 'heat processing forging deformation in central forging mode' must change the upper work stake in traditional 'cake element forming forging' technology, reducing production cost.

Description

A kind of forging press is forged the cake instrument

Technical field

The utility model relates to the hot-working of metallurgy industry metallic article, refers in particular to be used for the hot worked device of metal forging (instrument).

Background technology

The forging press forging and pressing, just adopt forging press that steel ingot is forged into qualified metal forging products (specifically, exactly steel ingot or steel billet are placed on the following work anvil of forging press, the work of the going up anvil of forging press depresses that---lifting---depressing---lifts again again ... so repeatedly, the steel ingot thermal processing distortion is become qualified forging.), it is the common mode of metallurgy industry metal material heat processing.

The metal forging products can relate to shapes such as roundwood, square bar, flat bar, axle class part, cake spare, ring.Cake spare goods are common metal forging products, its production procedure is: steel ingot pressure handle, steel ingot jumping-up, the pulling of jumping-up base, pulling base are sheared (hot shearing or cold cutting) and are become cylinder blank (height/diameter ≯ 2.5), at last circular blank are forged into the cake spare product (cake spare moulding just) of trimmed size.When the moulding of cake spare was forged: the following work anvil of forging press was circular flat anvil (upper surface of work anvil is a circular flat down), on the anvil of working be rectangle flat anvil (on work the lower surface of anvil be rectangular planes), the forging two sides forges distortion.

At present, the thermal processing distortion mode that the moulding of cake spare is forged has three kinds, the one, the eccentric forging (moved circular flat anvil, the rectangle flat anvil is progressively advanced) to the center along circular forging circumferential location, the 2nd, the center is forged and (is rotated circular flat anvil, make the rectangle flat anvil all the time at the center of circular forging), the 3rd, the eccentric forging and the combination of center forging.Eccentric characteristics of forging are: (tonnage of forging press is big more to cause the column of forging press to rock easily, column rocks serious more, ≤ 2000 tons forging press rocks smaller, 〉=3000 tons forging press rocks very serious), influence the normal use of forging press equipment, influence the service life of forging press equipment when serious; The shortcoming that forge at the center is: along with the increase of forging times, the drag in forging stock cross section increases gradually, must change the rectangle flat anvil (makes the rectangle lower surface width of rectangle flat anvil relatively carefully narrow, adapt to the forging stock that drag increases gradually), cause the increase of cake spare moulding forging times, increased the forging man-hour and the manufacturing cost of metal cake spare product.In addition, production practices prove: rectangle flat anvil (on work anvil) easily makes cake spare center produce recessed heart defective.

Development along with social science and technology, the demand of large-scale metal cake spare goods (the metal cake spare goods of large scale specification) increases year by year, the work tonnage of forging press is also increasing, and (dimensions of cake spare goods is big more, the drag of forging stock is also big more, the work tonnage of the forging press that needs is also big more), for avoiding the forging press column to rock the device damage that causes, when the moulding of large-scale metal cake spare goods was forged, thermal processing distortion should forge mode in the employing center.According to the existing weaponry and equipment situation, forging mode in employing center is carried out in the cake spare moulding forging process of thermal processing distortion, decline gradually along with hot processing temperature, the drag in forging cross section also increases gradually, must change the thin relatively narrow rectangle flat anvil of width (on work anvil), overcome the forging drag, and the swap time long (about 10～15 minutes) of the anvil of upward working, cause the increase of cake spare moulding forging times, cause the rising of forging man-hour, energy consumption increase and the cost of goods manufactured of metal cake spare product.

Summary of the invention

The utility model designs a kind of forging press and forges the cake instrument, be used for the forging production of metal cake spare goods, when the moulding of cake spare is forged, need not to change rectangle flat anvil (on work anvil), at last work anvil 3, down work anvil 5, forge under the effect of cake instrument, forging employing center forging mode is carried out hot-working forging and pressing distortion, avoided the increase of forging times, accelerate production procedure, saved the valuable energy, reduced manufacturing cost.

A kind of forging press that the utility model provides is forged the cake instrument, it is characterized in that: forging the cake instrument is one " the metal forging of cuboid ", and the right side is a work anvil 2, and the left side is to clamp 1, and work anvil 2 and pincers fuse 1; Work anvil 2 is one " cuboids of band groove breach ", the length L 1=of cuboid (1.1～1.5) L, width B 1=(0.5～0.7) B, thickness H1=(0.25～0.40) B; The groove breach that is " pane shape " is arranged on the thickness direction of work anvil 2, and central distribution along its length, the length L 3=of groove breach (0.15～0.25) L1, width B 3=H1, depth H 3=20～40mm; The pincers that fuse with work anvil 2 are 1 cuboids, length L 2=(0.2～0.5) L1, width B 2=(0.8～1.0) B1, thickness H2=(0.8～1.0) H1; L, B are respectively length, the width of going up work anvil 3 rectangle lower surfaces; Above-mentioned in conjunction with constituting the utility model.

Work anvil 2 and the cross section that clamps 1 are the curved rectangles in bight.

The material of forging the cake instrument is a steel alloy, and preferably (the structural steel cost is lower, and high-carbon steel is easy to crack for low carbon-structural steel.)

Compared with prior art, the utlity model has following advantage:

(1) modern design, simple in structure;

(2) make easily, easy to operate;

(3) avoid the transposing of last work anvil, striven for the valuable hot-working time, reduced the fire that the moulding of cake spare is forged, saved energy consumption;

(4) improve the moulding of cake spare and forged the central fovea heart defective that produces, improved the surface quality of metal cake spare goods, metal lumber recovery height;

(5) reduced the manufacturing cost of metal cake spare goods.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the A-A profile of Fig. 1

Fig. 3 is a work schematic diagram of the present utility model

Specific embodiments

Shanghai iron company implements the utility model in the forging and pressing workshop, and (work anvil 5 is circular flat anvils down, diameter 2200mm to utilize 4000 tons of (nominal pressure) forging presses; Last work anvil 3 is rectangle flat anvils, length L=2000mm, width B=600mm), in cake spare moulding forging process, the thermal processing distortion of mode is forged at the employing center, with cylinder blank one fire forge into large-scale metal cake spare goods (cake spare diameter of phi 1300mm～Φ 2000mm, weight is greater than 2.5 tons; Cylinder blank one fire as diameter 750mm, height 1450mm forges into the large-scale metal cake spare goods of diameter 1700mm, thickness 280mm).It is characterized in that: forging the cake instrument is one " the metal forging of cuboid ", the material of metal forging is a low carbon-structural steel, and the right side of forging the cake instrument is a work anvil 2, and the left side is that pincers are 1, work anvil 2 that fuses and pincers are 1, and the cross section bight is circular arc and measure-alike; Work anvil 2 is one " cuboids of band groove breach ", the length L 1=of cuboid (1.1～1.5) L=3000mm, width B 1=(0.5～0.7) B=400mm, thickness H1=(0.25～0.40) B=200mm, the groove breach that is " pane shape ", be arranged on the thickness direction of work anvil 2, and central distribution along its length, the length L 3=of groove breach (0.15～0.25) L1=500mm, width B 3=H1=200mm, depth H 3=20～40mm=30mm, the pincers that fuse with work anvil 2 are 1 cuboids, length L 2=(0.2～0.5) L1=1500mm, width B 2=(0.8～1.0) B1=B1=400mm, thickness H2=(0.8～1.0) H1=H1=200mm.

(moulding of cake spare is forged in work, the hot-working forging and pressing distortion of mode is forged at the employing center) time: prepare (1): move work anvil 5 down earlier, make work anvil 3 running orbits to the position, the center of circle of the anvil 5 of working under the quasi-cylindrical (when guaranteeing to forge, last work anvil 3 is in the center line of cylindrical forge piece blank reheating, just forging diametrical position all the time); Again forging (cylinder blank) is placed on down the rounded upper surface of work anvil 5; (2) forge main points: (A) during thermal processing distortion, rotate work anvil 5 down repeatedly, the anvil 3 of working cooperations in (or work anvil 2 of forging cake instrument) forges distortion to the forging two sides; When (B) forging, the phase I, the drag in forging stock cross section is less, on work that (width B=600mm) directly contact forging forges forging to anvil 3; Second stage, the drag in forging stock cross section increases to some extent, and the pincers that utilize forging manipulator clamp clamping forging cake instrument are placed on 1 the work anvil 2 wide (width B 1=400mm) of forging the cake instrument above the forging, forge forging; Phase III, the drag in forging stock cross section is bigger, utilizes work anvil 2 leptoprosopy (width H1=200mm), forges forging; When (C) forging, utilize the groove breach of work anvil 2 leptoprosopy of forging the cake instrument, forge forging, improve the moulding of cake spare and forge the central fovea heart defective that produces.

The utlity model has reasonable in design, simple in structure, make to be easy to characteristics, use easy to operate, Broken through " mode hot-working forging and pressing distortion is forged at the center " necessary accent in tradition " cake spare moulding forging " technology Change the technical barrier of rectangle flat anvil (on work anvil 3), striven for the valuable hot-working time, avoided forging Production procedure has been accelerated in the increase that fire is inferior, has saved the valuable energy, has reduced manufacturing cost. And The moulding of cake spare is forged the central fovea heart defective that produces and is obviously improved metal lumber recovery height.

Claims

1, a kind of forging press is forged the cake instrument, it is characterized in that: forging the cake instrument is one " the metal forging of cuboid ", and the right side is work anvil (2), and the left side is to clamp (1), and work anvil (2) and pincers fuse (1); Work anvil (2) is one " cuboid of band groove breach ", the length L 1=of cuboid (1.1～1.5) L, width B 1=(0.5～0.7) B, thickness H1=(0.25～0.40) B; The groove breach that is " pane shape " is arranged on the thickness direction of work anvil (2), and central distribution along its length, the length L 3=of groove breach (0.15～0.25) L1, width B 3=H1, depth H 3=20～40mm; The pincers that fuse with work anvil (2) are (1) cuboids, length L 2=(0.2～0.5) L1, width B 2=(0.8～1.0) B1, thickness H2=(0.8～1.0) H1; L, B are respectively length, the width of going up work anvil (3) rectangle lower surface; Above-mentioned in conjunction with constituting the utility model.

2, a kind of forging press according to claim 1 is forged the cake instrument, it is characterized in that: work anvil (2) and pincers are the cross section of (1) the curved rectangles in bight.

3, a kind of forging press according to claim 1 is forged the cake instrument, it is characterized in that: the material of forging the cake instrument is a steel alloy, preferably low carbon-structural steel.