A kind of large-scale hydraulic press use axle class upper and lower arc anvil frock for forging molding
The utility model relates to a kind of good in order to 2500 tons of above large-scale dydraulic forging moulding large axis forgings and forging roundness, axle class upper and lower arc anvil frock forging molding for for the little large-scale hydraulic press of machine-finish allowance, tooling device field is used in the manufacture of genus large axis forging.
1, CN202555754U, title " arc anvil ", it comprises two arc anvil bodies, arc anvil body comprises coattail strip, support section and working portion, coattail strip is arranged at the bottom of support section, working portion is arranged at the top of support section, the end face of working portion is to the recessed cambered surface of just working, and a side of working portion is the side work cambered surface concaving; The central angle of the cambered surface of just working is less than or equal to 180 °, and the central angle of side work cambered surface is less than or equal to 90 °; Two arc anvil bodies are opposed in vertical direction.See accompanying drawing 7.Its weak point: be only suitable for the small-sized forging enterprise in the following optical axis forging of professional production ￠ 400mm, and this arc anvil is for forging hammer, is fixed on anvil block, be inconvenient to load and unload, for also inapplicable on press.
2, in current forging industry, use upper and lower arc anvil to produce the producer of forged shaft, be mostly on forging hammer equipment or having 1600 tons of miniature water press or forging soon in the enterprise of formula hydraulic press and use, and the arc anvil specification using is all below ￠ 400mm～￠ 450mm.Meanwhile, upper arc anvil and lower arc anvil are made by steel plate fixingly utilizes both sides that the operation principle that dual spring is realized is installed respectively with Triangulum, not only service life short, and often need to change spring.For having 2500 tons with forging enterprise upper, large-scale hydraulic press, if adopt traditional upper and lower arc anvil to produce large axis forging, roundness is poor often for the product of not only manufacturing, and machine-finish allowance is large, waste of material is large, and cannot use.
Utility model content
Purpose of design: avoid the weak point in background technology, design one can be used on hydraulic press more than 2500 tons, dimensions, more than ￠ 450mm, has again long service life, the large-scale hydraulic press use axle class of flexible and convenient operation upper and lower arc anvil frock for forging molding.
Design: in order to realize above-mentioned purpose of design.The application's key is to solve the no longer simple upper and lower flat-anvils stretching that passes through of the above major diameter forged shaft of ￠ 450mm and produces, and makes product machine-finish allowance large, the problem that cylindrical roundness is inadequate.Design one can make the above forged shaft of ￠ 450mm produce by upper and lower arc anvil pulling with upper, large-scale hydraulic press at 2500 tons, better controls machine-finish allowance and circle product external roundness.The application is in structural design, 1, adopt and make the fixing Triangulum of using that upper and lower spring base forging has replaced steel plate to make, the object of design is like this: spring base forging is more firm than steel plate Triangulum, the pressure can bear is larger, particularly on large press, produce large axis forging and need not often change spring base, but steel plate Triangulum is not accomplished.2, the object that under design specialized, anvil block connects upper and lower arc anvil is: when forging large axis forging and forging other products, can not conflict, if need to use upper and lower flat anvil to forge time, only need lower anvil block and upper and lower arc anvil Integral lifting to go out workspace, rational in infrastructure, handling are flexible, greatly save the time of changing frock.
Technical scheme: a kind of large-scale hydraulic press use forged shaft upper and lower arc anvil for forging molding, it comprises arc anvil body and lower arc anvil body, lower anvil block is groove shape structure and lower arc anvil body bottom and is positioned at the groove of lower anvil block, upper arc anvil body and lower arc anvil body, be connected and go to upper and lower arc overall structure with alignment pin and high-strength spring by spring base guide pillar.
The utility model is compared with background technology, the one, the upper and lower arc anvil of the above major diameter specification of design ￠ 450mm is for the production of large axis forging, both reduce production material cost, reduced again machine-finish allowance, there are extremely considerable economic benefit and market prospects; The 2nd, designed special upper and lower spring base, make actual production more convenient operation flexible, efficiency is higher, longer service life, the more important thing is realized upper and lower arc anvil at 2500 tons with the application on upper, large-scale hydraulic press.
Brief description of the drawings
Fig. 1 is the perspective view of the upper and lower arc anvil of large-scale hydraulic press forged shaft forging molding.
Fig. 2-1st, the main TV structure schematic diagram of upper arc anvil body in Fig. 1.
Fig. 2-2nd, the side-looking structural representation of Fig. 2-1.
Fig. 3-1st, the main TV structure schematic diagram of lower arc anvil body in Fig. 1.
Fig. 3-2nd, the side-looking structural representation of Fig. 3-1.
Fig. 4-1st, the main TV structure schematic diagram of lower anvil block in Fig. 1.
Fig. 4-2nd, the side-looking structural representation of Fig. 4-1.
Fig. 5-1st, the main TV structure schematic diagram of upper spring seat in Fig. 1.
Fig. 5-2nd, the side-looking structural representation of Fig. 5-1.
Fig. 6-1st, the main TV structure schematic diagram of lower spring cup in Fig. 1.
Fig. 6-2nd, the side-looking structural representation of Fig. 6-1.
Fig. 7 is the structural representation of background technology.
Detailed description of the invention
Embodiment 1: with reference to accompanying drawing 1 to Fig. 6-2.A kind of large-scale hydraulic press use forged shaft upper and lower arc anvil for forging molding, it comprises arc anvil body 1 and lower arc anvil body 2, lower anvil block 8 is groove shape structure and lower arc anvil body 2 bottoms and is positioned at the groove of lower anvil block 8, upper arc anvil body 1 and lower arc anvil body 2, be connected and go to upper and lower arc overall structure with alignment pin 4 and high-strength spring 5 by spring base guide pillar 3.Upper arc anvil body 1 both sides are intrinsic upper spring seat 3 and formation half arc overall structure respectively, lower arc anvil body 2 both sides intrinsic lower spring cup 3 and half arc overall structure respectively, lower arc anvil body 2 is corresponding up and down with upper arc anvil body 1, and two groups of spring base guide pillars 5 lay respectively on upper spring seat 3 and lower spring cup 4 and two groups of spring base guide pillars and overlap and have spring 7 respectively.Every group of spring base guide pillar 5 is two.Every group of spring 7 is two.Upper spring seat 3 has two spring base guide pillar through holes 11.On half arc, arc anvil body 1 end, both sides has under alignment pin through hole 9, half arcs arc anvil body 2 ends, both sides from top to bottom and has on alignment pin counter sink 10 and half arc arc anvil body 2 under arc anvil body 1 and half arc from top to bottom and superpose up and down by alignment pin 6.The arc-shaped side lead angle of arc anvil body 2 under arc anvil body 1 and half arc on half arc.Its large-scale hydraulic press is used with forged shaft forging molding, lower arc anvil forges the method for forged shaft, first steel ingot is passed through upper, lower flat-anvils stretching forges the square cross section to required size specification, then from all directions, finally the blank in cross section, all directions is put into, in lower arc anvil frock, on its half arc, arc anvil body 1 is connected with hydraulic press heading, hydraulic press drives on half arc the arc anvil body 1 draw out position blank in the inner that pumps, when blank pulling is forged into when cylindrical, move forward, then forge again, so circulation, until axle pulling forging and molding completes.Hydraulic press drives on half arc arc anvil body 1 stroke range in the scope of spring 7 compression travels.
It is to be understood that: although the various embodiments described above are to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; instead of restriction to the utility model mentality of designing; any combination, increase or amendment that does not exceed the utility model mentality of designing, all falls in protection domain of the present utility model.