CN208408424U - A kind of mold for big specification straight bevel gear finish forge molding machine - Google Patents

A kind of mold for big specification straight bevel gear finish forge molding machine Download PDF

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Publication number
CN208408424U
CN208408424U CN201820545649.5U CN201820545649U CN208408424U CN 208408424 U CN208408424 U CN 208408424U CN 201820545649 U CN201820545649 U CN 201820545649U CN 208408424 U CN208408424 U CN 208408424U
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upper mold
warm forging
die
forging
warm
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倪俊芳
陈云
王德力
枚杰
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Suzhou University
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Suzhou University
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Abstract

The utility model discloses a kind of molds for big specification straight bevel gear finish forge molding machine, the mold is same straight bevel gear set of molds, and the same straight bevel gear set of molds includes that the flat mould used, warm forging shaping dies, warm forging shaping mould and cold forging finishing mold are respectively corresponded in gear difference process.The mold of the former of the utility model is suitable for the processing of big specification straight bevel gear, the difference of Forming Resistance when being shaped by gear different phase, by forming process again it is original it is once-forming on the basis of be divided into warm forging and cold forging and shape twice;Since Warm Forging Process different phase Forming Resistance changes greatly; in order to protect mold; Warm Forging Process is divided into and is forged and pressed three times; after improving processing technology; mold is improved; one set of die is changed to four molds, former is improved according to the motion conditions of mold different piece when processing after die improvement.

Description

A kind of mold for big specification straight bevel gear finish forge molding machine
Technical field
The utility model relates to a kind of molds for big specification straight bevel gear finish forge molding machine, belong to the skill of gear Art manufacturing field.
Background technique
Gear precision forging technology refers to that gear tooth directly obtains complete tooth form by finish forge by also expecting, and the flank of tooth is not required to cut Processing, or only need to finish i.e. workable Gear Manufacturing Technology a little.
For a long time, straight bevel gear uses metal cutting mode, technology maturation, process, but the root portion of gear Metallic fiber is cut off, so that the strength of gear teeth weakens, and machining low efficiency, at high cost, is not suitable for producing in enormous quantities.And Although the direct forging and molding method of tradition improves processing efficiency, reduce waste of material, but Product Precision is low, and mold is ground Damage is serious.Compared with traditional cutting technology, gear precision forging technique can improve gear tissue, improve mechanical property;It improves Stock utilization and production efficiency reduce production cost;Flank profil deformation when heat treatment is reduced, the wearability and engagement of tooth are improved When stationarity, improve service life.
A common forging process cannot shape drag according to gear different phase and carry out segmental machining, mold is caused to grind Cannot be to the gear finishing after forming when damaging seriously, and once forging and pressing, precision is not high, has overlap after causing gear to forge and press, and needs Increase by one of machining processes and improve precision, to reduce enterprises production efficiency.
For machining production efficiency, low, waste of material cannot seriously and during an excellent suitability for press forming go deburring and mould Has the problem of serious wear, it is necessary to mold and processing technology are improved, to avoid brought by machining and an excellent suitability for press forming Problem improves and improves the forming effect and quality of mold, reduces production cost, improves production efficiency, improves the forming of mold Technique.
Utility model content
The goal of the invention of the utility model is to provide a kind of mold for big specification straight bevel gear finish forge molding machine, To avoid problem brought by machining and an excellent suitability for press forming, the forming effect and quality of mold are improved and improved, reduces life Cost is produced, production efficiency is improved, improves the forming technology of mold.
To achieve the above object of the invention, the technical solution adopted in the utility model is: one kind boring tooth for big specification straight-tooth The mold of finish forge molding machine is taken turns, the mold is same straight bevel gear set of molds,
The same straight bevel gear set of molds includes respectively corresponding the flat-die used in gear difference process Mold, warm forging shaping dies, warm forging shaping mould and cold forging finishing mold,
The flat mould includes flat-die punch-pin and flat-die cavity plate, and the flat-die punch-pin includes the first flat-die upper mold, second Flat-die upper mold, the flat-die cavity plate include the first flat-die lower die, the second flat-die lower die,
The first flat-die upper mold is cylinder punch-pin, and the second flat-die upper mold is cylinder punch-pin, on first flat-die Mould clamping is set in the second flat-die upper mold,
The first flat-die lower die is solid cylinder, and the second flat-die lower die is cylinder, the first flat-die lower die It is plugged in the second flat-die lower die;
The warm forging shaping dies includes warm forging forming terrace die and warm forging female die for forming, and the warm forging forming terrace die includes same The first warm forging forming upper mold, the second warm forging forming upper mold, third warm forging forming upper mold and the 4th warm forging of axis setting shape upper mold, The warm forging female die for forming includes the first warm forging forming lower die, the second warm forging forming lower die and third the warm forging forming of coaxial arrangement Lower die,
The first warm forging forming upper mold is cylinder punch-pin, and diameter is equal to pinion mounting holes internal diameter at the model of lower end, The first warm forging forming upper mold clamping is set in the second warm forging forming upper mold,
The second warm forging forming upper mold is cylinder cavity plate, is equipped with tooth die, the tooth proportions of tooth die at external port For half-formed size, pinion mounting holes mould is equipped at inner port, the second warm forging forming upper mold clamping is set to third warm forging It shapes in upper mold,
The third warm forging forming upper mold is cylinder, and the second warm forging forming upper mold clamping is set in third warm forging forming In mould, the third warm forging forming upper mold clamping is set in the 4th warm forging forming upper mold,
The 4th warm forging forming upper mold is cylinder,
The first warm forging forming lower die is solid cylinder, is equipped with protrusion part, the protrusion part among end face thereon Diameter is equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative ground shape model, institute The first warm forging forming lower die is stated to be inserted in the second warm forging forming lower die,
The second warm forging forming lower die is cylinder, and there is chamfering in inner wall upper end endface, under the second warm forging forming Mould is inserted in third warm forging forming lower die,
The third warm forging forming lower die is cylinder;
The warm forging shaping mould includes warm forging shaping terrace die and warm forging correcting die, and the warm forging shaping terrace die includes same The first warm forging shaping upper mold, the second warm forging shaping upper mold, third warm forging shaping upper mold and the 4th warm forging shaping upper mold of axis setting, The warm forging correcting die includes the first warm forging shaping lower die, the second warm forging shaping lower die and the third warm forging shaping of coaxial arrangement Lower die,
The first warm forging shaping upper mold is cylinder punch-pin, and the diameter at the model of end is equal to pinion mounting holes internal diameter, The first warm forging shaping upper mold is inserted in the second warm forging shaping upper mold,
The second warm forging shaping upper mold is cylinder cavity plate, and model end is equipped with gear non-operative end mould, second temperature The clamping of shaping upper mold is forged to be set in third warm forging shaping upper mold,
The third warm forging shaping upper mold is cylinder, when model end and the second warm forging shaping upper mold model end work, two Person collectively forms gear non-operative end surface model, and the third warm forging shaping upper mold clamping is set in the 4th warm forging shaping upper mold,
The 4th warm forging shaping upper mold is cylinder, is moved synchronously during forging and stamping with third warm forging shaping upper mold, is protected Third warm forging shaping upper mold,
The first warm forging shaping lower die is solid cylinder, is equipped with the first protrusion part among end face thereon, protrudes part Diameter be equal to the straight bevel gear diameter of axle to be processed, first protrusion part periphery be additionally provided with the second protrusion part, second is convex Part is straight bevel gear inoperative ground shape model out,
The second warm forging shaping lower die is cylinder, and internal diameter is equal to the first warm forging shaping upper mold outer diameter, and the second warm forging is whole The size at the model end of shape lower die is identical as the theoretical size in working gear face to be processed, and the first warm forging shaping lower die is set to In the second warm forging shaping lower die,
The third warm forging shaping lower die is cylinder, and internal diameter is equal to the second warm forging shaping lower die outer diameter, second temperature Shaping lower die is forged to be set in third warm forging shaping lower die;
The cold forging finishing mold includes cold forging finishing punch-pin and cold forging finishing cavity plate, and the cold forging finishing punch-pin includes same The the first cold forging finishing upper mold and the second cold forging finishing upper mold of axis setting, the cold forging finishing cavity plate include the first of coaxial arrangement Cold forging finishing lower die, the second cold forging finishing lower die and third cold forging finishing lower die,
The first cold forging finishing upper mold is cylinder punch-pin, is equipped with gear non-operative end mould at the model end of end,
The second cold forging finishing upper mold is cylinder, and the first cold forging finishing upper mold clamping is set in the second cold forging finishing It in mould, is moved synchronously during forging and stamping with the first cold forging finishing upper mold, protects the first cold forging finishing upper mold,
The first cold forging finishing lower die is cylinder cavity plate, and protrusion part, protrusion are equipped among the upper surface of model end Diameter is divided to be equal to the gear diameter of axle to be processed, model end upper surface periphery is additionally provided with remaining protrusion part, remaining described protrusion part For straight bevel gear inoperative ground shape model,
Second cold forging finishing lower die is cylinder, internal diameter of the internal diameter less than the first cold forging finishing lower die, second cold forging Finishing lower die outer diameter is equal with the first cold forging finishing outer diameter, and is equal to third cold forging die finish internal diameter,
The third cold forging finishing lower die is cylinder, and internal diameter and the first, second cold forging die finish outer diameter are equal, described first Cold forging finishing lower die is set to above the second cold forging finishing lower die, and the first, second cold forging die finish is set to third cold forging finishing In lower die.
Preferably, the first flat-die upper mold, the second flat-die upper mold are mutually clamped setting by step.
Preferably, the first warm forging forming upper mold, the second warm forging forming upper mold, third warm forging forming upper mold and the 4th temperature It is swaged between shape upper mold and setting is mutually clamped by step.
Preferably, the first warm forging shaping upper mold, the second warm forging shaping upper mold, third warm forging shaping upper mold and the 4th temperature Setting is mutually clamped by step between forging shaping upper mold.
Preferably, the first cold forging finishing upper mold and the second cold forging finishing upper mold are mutually clamped setting by step.
The invention also discloses a kind of big specification straight bevel gear study on precision forging technology, using flat mould by raw material Jumping-up;Tooth form is processed using warm forging shaping dies;Tooth form is corrected using warm forging shaping mould;It goes to fly using cold forging finishing mold Side, finishing tooth form,
Specifically comprise the following steps:
(1), it will process raw material and be heated to 850 DEG C in electric furnace;
(2), flat mould is placed in precision forging equipment, according to required straight bevel gear size adjusting forging press Tonnage by raw material on flat-die jumping-up to required thickness;
(3), in the state that forging press is opened, upper and lower mold is heated to 350 DEG C;
(4), warm forging shaping dies is placed in precision forging equipment, warm forging forming terrace die moves down, when warm forging forming is convex When mould, the contact of warm forging female die for forming, the second warm forging forming lower die is contacted with third warm forging forming upper mold, while third warm forging shapes Lower die is contacted with the 4th warm forging forming upper mold, and continues to move downward, and according to straight bevel gear size, punching press tonnage is arranged, Obtain the gear of roughing tooth form;
(5), warm forging shaping mould is placed in precision forging equipment, warm forging shaping terrace die moves down, when warm forging shaping is convex When mould, the contact of warm forging correcting die, the second warm forging shaping lower die is contacted with third warm forging shaping upper mold, while third warm forging shaping Lower die is contacted with the 4th warm forging shaping upper mold, and continues to move downward, and according to straight bevel gear size, punching press tonnage is arranged, Obtain the gear for correcting tooth form.
(6), the gear after warm forging is placed on press machine, intermediate shaft hole is reopened, it is true according to the straight bevel gear diameter of axle Determine press machine and rushes shaft diameter;
(7), step (6) institute workpieces processing is first cooled to room temperature, then carries out Shot Blasting, later saponification process;
(7), cold forging finishing mold is placed in precision forging equipment, by step (7), treated that gear punch-pin moves down It is closed with cavity plate, completes cold forging finishing;
(8), by after the processed carburizing heat treatment of step (7), processing is completed.
Preferably, the flat mould is made of flat-die punch-pin and flat-die cavity plate, according to institute's machining straight bevel gear by adopting ruler It is very little, it adjusts forging press and forges and presses tonnage, by 850 DEG C of raw material jumping-ups to specified size.
Preferably, the warm forging shaping dies, is made of warm forging forming terrace die and warm forging female die for forming, the first warm forging forming Mode diameters are equal to straight bevel gear shaft hole diameter, and tooth die is that the second warm forging shapes upper mold;
Preferably, the warm forging shaping mould, is made of warm forging shaping terrace die and warm forging correcting die, the first warm forging shaping Mode diameter is equal to straight bevel gear shaft hole diameter under upper mold and the first warm forging shaping, and tooth die is the second warm forging shaping lower die;
Preferably, the cold forging finishing mold is made of cold forging finishing punch-pin and cold forging finishing cavity plate, flute profile in lower die, It is gear non-operative end mould at model end, internal diameter is equal to corresponding model gear non-operative end axis hole outer diameter, and model end is gear work When making, the size of gear non-working surface, the size carries out essence to semi-finished product gear non-working surface size cooling after warm forging finishing It is whole.The non-model end of outer diameter is greater than model end, forms ladder platform, and non-model end and model end outer diameter are equal in the second cold forging finishing Mould corresponds to internal diameter, and the two is coupled.Second cold forging finishing upper mold is cylinder, and internal diameter is equal to third cold forging finishing upper mold outer diameter, Height is consistent with third cold forging finishing upper mold, moves synchronously during forging and stamping with third cold forging finishing upper mold, protects third cold forging Finishing upper mold.First cold forging finishing lower die is cylinder cavity plate, and internal diameter is equal to mounting hole outer diameter in working gear requirement.The mould mould Working face correspondingly-sized when type end is working gear, the size are to carry out size finishing to the semi-finished product gear of warm forging shaping.On End face intermediate ledge divides diameter to be equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative Ground shape model.Second cold forging finishing lower die is cylinder, and internal diameter is slightly less than the first cold forging finishing lower die outer diameter, the mould outer diameter It is identical as the first cold forging finishing outer diameter, and it is equal to third cold forging die finish internal diameter.Third cold forging finishing lower die be cylinder, internal diameter and The one the second cold forging die finish outer diameters are equal.There is a ladder platform in outside, and when installation cooperates with corresponding component.
Since above-mentioned technical proposal is used, the utility model has the advantage that compared with prior art
The mold of the former of the utility model is suitable for the processing of big specification straight bevel gear, passes through gear not same order Section forming when Forming Resistance difference, by forming process again it is original it is once-forming on the basis of be divided into warm forging and cold forging twice at Shape;Since Warm Forging Process different phase Forming Resistance changes greatly, in order to protect mold, Warm Forging Process is divided into and is forged and pressed three times, After improving processing technology, mold is improved, one set of die is changed to four molds, die improvement is later according to processing When mold different piece motion conditions former is improved.Above to the improvement of former cooperate corresponding mold and Technique effectively improves in original processing method that burn failure is serious, has the problem of overlap.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the process equipment that the utility model embodiment one uses.
Fig. 2 is the flat mould figure of the utility model embodiment one.
Fig. 3 is the warm forging shaping dies figure of the utility model embodiment one.
Fig. 4 is the warm forging shaping mould figure of the utility model embodiment one.
Fig. 5 is the cold forging finishing mold figure of the utility model embodiment one.
Wherein: 1, big pressure block;2, lower die pressure block;3, spring;4, floating pressure block;5, lower die 1;6, guide post;7, under Mould 2;8, lower die 3;9, guide sleeve;10, upper mold 2;11, upper mold 3;12, upper mold 4;13, big nut;14, T-bolt;15, Upper Die-sleeve; 16, cope plate;17, upper mold pressure block;18, upper die plate;19, upper material returned pin;20, upper mold 1;21, model cavity;22, small guide post; 23, lower die-sleeve;24, general cylindrical pin A type;25, small guide post;26, floating template;27, gasket;28, guide sleeve;29, through type pressure Priming cup;30, compression ring;31, lower material returned pin;32, lower template;33, workbench backing plate;201, the first flat-die upper mold;202, Two flat-die upper molds;203, the first flat-die lower die;204, the second flat-die lower die;301, the first warm forging shapes upper mold;302, the second temperature It is swaged into shape upper mold;303, third warm forging shapes upper mold;304, the 4th warm forging shapes upper mold;305, the first warm forging forming lower die; 306, the second warm forging forming lower die;307, third warm forging forming lower die;401, the first warm forging shaping upper mold;402, the second warm forging is whole Shape upper mold;403, third warm forging shaping upper mold;404, the 4th warm forging shaping upper mold;405, the first warm forging shaping lower die;406, Two warm forging shaping lower dies;407, third warm forging shaping lower die;501, the first cold forging finishing upper mold;502, in the second cold forging finishing Mould;503, the first cold forging finishing lower die;504, the second cold forging finishing lower die;505, third cold forging finishing lower die.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment one: a kind of mold for big specification straight bevel gear finish forge molding machine, the mold are with always Bevel gear set of molds,
The same straight bevel gear set of molds include respectively corresponded in gear difference process the flat mould used, Warm forging shaping dies, warm forging shaping mould and cold forging finishing mold,
In actual production process, above-mentioned four mold can use in same process equipment, by processed Cheng Yici is replaced or the corresponding four sets of process equipments of four molds use, and can select according to the actual situation.
Shown in Figure 2, the flat mould includes flat-die punch-pin and flat-die cavity plate, and the flat-die punch-pin includes first flat Mould upper mold 201, the second flat-die upper mold 202, the flat-die cavity plate include the first flat-die lower die 203, the second flat-die lower die 204,
The first flat-die upper mold 201 be cylinder punch-pin, the second flat-die upper mold 202 be cylinder punch-pin, described first The clamping of flat-die upper mold 201 is set in the second flat-die upper mold 202,
The first flat-die lower die 203 is solid cylinder, and the second flat-die lower die 204 is cylinder, and described first is flat Mould lower die 203 is plugged in the second flat-die lower die 204;
Shown in Figure 3, the warm forging shaping dies includes warm forging forming terrace die and warm forging female die for forming, the warm forging at Shape punch-pin includes the first warm forging forming upper mold 301, the second warm forging forming upper mold 302, third warm forging forming upper mold of coaxial arrangement 303 and the 4th warm forging shape upper mold 304, the warm forging female die for forming includes the first warm forging forming lower die 305 of coaxial arrangement, the Two warm forging forming lower dies 306, third warm forging forming lower die 307,
The first warm forging forming upper mold 301 is cylinder punch-pin, and diameter is equal in pinion mounting holes at the model of lower end Diameter, the first warm forging forming upper mold clamping are set in the second warm forging forming upper mold,
The second warm forging forming upper mold 302 is cylinder cavity plate, is equipped with tooth die, the tooth form ruler of tooth die at external port Very little is half-formed size, and pinion mounting holes mould is equipped at inner port, and the second warm forging forming upper mold clamping is set to third temperature It is swaged into shape upper mold,
Third warm forging forming upper mold 303 is cylinder, the second warm forging forming upper mold clamping be set to third warm forging at In shape upper mold, the third warm forging forming upper mold clamping is set in the 4th warm forging forming upper mold,
The 4th warm forging forming upper mold 304 is cylinder,
The first warm forging forming lower die 305 is solid cylinder, is equipped with protrusion part, the protrusion among end face thereon Diameter is divided to be equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative ground shape model, The first warm forging forming lower die is inserted in the second warm forging forming lower die,
The second warm forging forming lower die 306 is cylinder, and there are chamfering, the second warm forging forming in inner wall upper end endface Lower die is inserted in third warm forging forming lower die,
The third warm forging forming lower die 307 is cylinder;
Referring to fig. 4, the warm forging shaping mould includes warm forging shaping terrace die and warm forging correcting die, and the warm forging shaping is convex Mould includes the first warm forging shaping upper mold 401 of coaxial arrangement, in the second warm forging shaping, 402,403 and of third warm forging shaping upper mold 4th warm forging shaping upper mold 404, the warm forging correcting die include first the 405, second temperature of warm forging shaping lower die of coaxial arrangement Shaping lower die 406 and third warm forging shaping lower die 407 are forged,
The first warm forging shaping upper mold 401 is cylinder punch-pin, and the diameter at the model of end is equal in pinion mounting holes Diameter, the first warm forging shaping upper mold are inserted in the second warm forging shaping upper mold,
The second warm forging shaping upper mold 402 be cylinder cavity plate, model end be equipped with gear non-operative end mould, described second The clamping of warm forging shaping upper mold is set in third warm forging shaping upper mold,
The third warm forging shaping upper mold 403 is cylinder, when model end and the second warm forging shaping upper mold model end work, The two collectively forms gear non-operative end surface model, and the third warm forging shaping upper mold clamping is set to the 4th warm forging shaping upper mold It is interior,
The 4th warm forging shaping upper mold 404 is cylinder, is moved synchronously during forging and stamping with third warm forging shaping upper mold, is protected Third warm forging shaping upper mold is protected,
The first warm forging shaping lower die 405 is solid cylinder, is equipped with the first protrusion part, protrusion among end face thereon Point diameter be equal to the straight bevel gear diameter of axle to be processed, be additionally provided with the second protrusion part in the periphery of the first protrusion part, second Protrusion is divided into straight bevel gear inoperative ground shape model,
The second warm forging shaping lower die 406 is cylinder, and internal diameter is equal to the first warm forging shaping upper mold outer diameter, the second warm forging The size at the model end of shaping lower die is identical as the theoretical size in working gear face to be processed, and the first warm forging shaping lower die is set In in the second warm forging shaping lower die,
The third warm forging shaping lower die 407 be cylinder, internal diameter be equal to the second warm forging shaping lower die outer diameter, described second Warm forging shaping lower die is set in third warm forging shaping lower die;
Referring to Fig. 5, the cold forging finishing mold includes cold forging finishing punch-pin and cold forging finishing cavity plate, and the cold forging finishing is convex Mould includes in the first cold forging finishing of coaxial arrangement, 501 and the second cold forging finishing upper mold 502, the cold forging finishing cavity plate include The first cold forging finishing lower die 503, the second cold forging finishing lower die 504 and the third cold forging finishing lower die 505 of coaxial arrangement,
The first cold forging finishing upper mold 501 is cylinder punch-pin, is equipped with gear non-operative end mould at the model end of end,
The second cold forging finishing upper mold 502 is cylinder, and the first cold forging finishing upper mold clamping is set to the second cold forging essence It in whole upper mold, is moved synchronously during forging and stamping with the first cold forging finishing upper mold, protects the first cold forging finishing upper mold,
The first cold forging finishing lower die 503 is cylinder cavity plate, and protrusion part, protrusion are equipped among the upper surface of model end Section diameter is equal to the gear diameter of axle to be processed, and model end upper surface periphery is additionally provided with remaining protrusion part, remaining described protrusion It is divided into straight bevel gear inoperative ground shape model,
Second cold forging finishing lower die 504 is cylinder, and for internal diameter less than the internal diameter of the first cold forging finishing lower die, described second is cold It is equal with the first cold forging finishing outer diameter to forge finishing lower die outer diameter, and is equal to third cold forging die finish internal diameter,
The third cold forging finishing lower die 505 is cylinder, and internal diameter and the first, second cold forging die finish outer diameter are equal, described First cold forging finishing lower die is set to above the second cold forging finishing lower die, and the first, second cold forging die finish is set to third cold forging In finishing lower die.
In the present embodiment, the first flat-die upper mold, the second flat-die upper mold are mutually clamped setting by step.
In the present embodiment, first warm forging forming upper mold, the second warm forging forming upper mold, third warm forging forming upper mold and the Setting is mutually clamped by step between four warm forgings forming upper mold.
In the present embodiment, the first warm forging shaping upper mold, the second warm forging shaping upper mold, third warm forging shaping upper mold and Setting is mutually clamped by step between four warm forging shaping upper molds.
In the present embodiment, the first cold forging finishing upper mold and the second cold forging finishing upper mold are mutually clamped by step and are set It sets.
The clamping being related in the present embodiment is it is preferable to use step clamping, and illustrate such as: the first warm forging shapes upper mold 301 Upper end be equipped with protrusion, the inside of corresponding second warm forging forming upper mold 302 is equipped in shape and the first warm forging forming upper mold 301 The recess that end convex shape matches;For example, the outer wall top of the second warm forging forming upper mold 302 is equipped with protrusion, third warm forging The upper inside wall of forming upper mold 303 is equipped with the recess that shape matches, and the two forms clamping.
Shown in Figure 1, a kind of process equipment is used cooperatively with the present invention, including upper die holder, lower die holder, same straight-tooth Bevel gear set of molds is placed between upper die holder and lower die holder.
Upper mold 1, upper mold 2, upper mold 3, upper mold 4, lower die 1, lower die 2, lower die 3 are a kind of upper address, such as upper mold in Fig. 1 1 can shape upper mold 301 or the first warm forging shaping upper mold 401 for the first warm forging.
The upper die holder includes cope plate 16 and the upper mold pressure block 17 that is co-axially located in cope plate.
The lower die holder includes big pressure block 1, lower die pressure block 2, floating template 26, compression ring 30, spring 3, pressure of floating Power block 4, lower template 32, workbench backing plate 33, coaxially clamping is set in lower template 32 the big pressure block 1, the compression ring 30 It is set on lower die pressure block 2, the floating template 26 is set to 30 sides on compression ring, and the floating template and compression ring pass through cunning Bar connects, and spring is arranged on the slide bar, and the floating pressure block is coaxially arranged with floating template, the floating pressure block 4 Outer diameter be equal to floating template installation place internal diameter.
It is additionally provided with mold protecting device, the mold protecting device includes Upper Die-sleeve 15, lower die-sleeve 23 and upper die plate 18, The fixed top with upper die holder of the upper die plate 18, the fixed lower section with upper die holder of the cope plate, the lower die-sleeve are fixed On the lower die seat, the upper and lower die sleeve is cylinder, and in different process, the Upper Die-sleeve is coaxially fixed at together The outermost of corresponding punch-pin in one straight bevel gear set of molds, the lower die-sleeve are coaxially fixed at same straight bevel gear The outermost of corresponding cavity plate in set of molds.
In the present embodiment, the upper material returned pin 19, lower material returned pin 31 are the open circles among upper and lower molding pressure block Column, material returned pin have some scrap and block into upper and lower mould in warm forging and cold forging processes, which can be used to clear up useless The foreign matters such as bits.In the present embodiment, the small guide post 25 is cylinder director element, and guide sleeve 28 is set on small guide post 25, the element It is connected with floating template 26, it is ensured that floating template is moved in vertical direction, and through type forced filling oil cup 29 is arranged in floating template The upper end of small guide post is arranged in 26 side, gasket 27.
In the present embodiment, the guide sleeve 9 that Fig. 1 is additionally provided with guide post 6, is arranged guide post 6, small guide post 22 is connect with lower die-sleeve 23, general Logical straight pin A type 24 is for fixing lower die-sleeve 23 and floating template 26, and Upper Die-sleeve 15 is set in upper mold outermost, with cope plate Fixed, big nut 13, T-bolt 14 are the fixture nut that the present embodiment uses.

Claims (5)

1. a kind of mold for big specification straight bevel gear finish forge molding machine, it is characterised in that: the mold is with always Bevel gear set of molds,
The same straight bevel gear set of molds includes respectively corresponding the flat mould used, warm forging in gear difference process Shaping dies, warm forging shaping mould and cold forging finishing mold,
The flat mould includes flat-die punch-pin and flat-die cavity plate, and the flat-die punch-pin includes the first flat-die upper mold, the second flat-die Upper mold, the flat-die cavity plate include the first flat-die lower die, the second flat-die lower die,
The first flat-die upper mold is cylinder punch-pin, and the second flat-die upper mold is cylinder punch-pin, the first flat-die upper mold card It is arranged in the second flat-die upper mold,
The first flat-die lower die is solid cylinder, and the second flat-die lower die is cylinder, and the first flat-die lower die plugs In the second flat-die lower die;
The warm forging shaping dies includes warm forging forming terrace die and warm forging female die for forming, and the warm forging forming terrace die includes coaxially setting The first warm forging forming upper mold, the second warm forging forming upper mold, third warm forging forming upper mold and the 4th warm forging forming upper mold set, it is described Warm forging female die for forming includes under the first warm forging forming lower die, the second warm forging forming lower die and third the warm forging forming of coaxial arrangement Mould,
The first warm forging forming upper mold is cylinder punch-pin, and diameter is equal to pinion mounting holes internal diameter at the model of lower end, described First warm forging shapes upper mold clamping and is set in the second warm forging forming upper mold,
The second warm forging forming upper mold is cylinder cavity plate, and tooth die is equipped at external port, and the tooth proportions of tooth die are half Compact dimensions, pinion mounting holes mould is equipped at inner port, and the second warm forging forming upper mold clamping is set to third warm forging and shapes In upper mold,
The third warm forging forming upper mold is cylinder, and the third warm forging forming upper mold clamping is set to the 4th warm forging and shapes upper mold It is interior,
The 4th warm forging forming upper mold is cylinder,
The first warm forging forming lower die is solid cylinder, is equipped with protrusion part, the protrusion section diameter among end face thereon Equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative ground shape model, and described the One warm forging forming lower die is inserted in the second warm forging forming lower die,
The second warm forging forming lower die is cylinder, and there is chamfering in inner wall upper end endface, and the second warm forging forming lower die is inserted In third warm forging forming lower die,
The third warm forging forming lower die is cylinder;
The warm forging shaping mould includes warm forging shaping terrace die and warm forging correcting die, and the warm forging shaping terrace die includes coaxially setting The first warm forging shaping upper mold, the second warm forging shaping upper mold, third warm forging shaping upper mold and the 4th warm forging shaping upper mold set, it is described Warm forging correcting die includes under the first warm forging shaping lower die, the second warm forging shaping lower die and third warm forging shaping of coaxial arrangement Mould,
The first warm forging shaping upper mold is cylinder punch-pin, and the diameter at the model of end is equal to pinion mounting holes internal diameter, described First warm forging shaping upper mold is inserted in the second warm forging shaping upper mold,
The second warm forging shaping upper mold is cylinder cavity plate, and model end is equipped with gear non-operative end mould, and second warm forging is whole The clamping of shape upper mold is set in third warm forging shaping upper mold,
The third warm forging shaping upper mold is cylinder, and when model end and the second warm forging shaping upper mold model end work, the two is total With gear non-operative end surface model is constituted, the third warm forging shaping upper mold clamping is set in the 4th warm forging shaping upper mold,
The 4th warm forging shaping upper mold is cylinder, is moved synchronously during forging and stamping with third warm forging shaping upper mold, and third is protected Warm forging shaping upper mold,
The first warm forging shaping lower die is solid cylinder, is equipped with the first protrusion part among end face thereon, protrudes the straight of part Diameter is equal to the straight bevel gear diameter of axle to be processed, is additionally provided with the second protrusion part, the second protrusion in the periphery of the first protrusion part It is divided into straight bevel gear inoperative ground shape model,
The second warm forging shaping lower die is cylinder, and internal diameter is equal to the first warm forging shaping upper mold outer diameter, under the second warm forging shaping The size at the model end of mould is identical as the theoretical size in working gear face to be processed, and the first warm forging shaping lower die is set to described In second warm forging shaping lower die,
The third warm forging shaping lower die is cylinder, and internal diameter is equal to the second warm forging shaping lower die outer diameter, and second warm forging is whole Shape lower die is set in third warm forging shaping lower die;
The cold forging finishing mold includes cold forging finishing punch-pin and cold forging finishing cavity plate, and the cold forging finishing punch-pin includes coaxially setting The the first cold forging finishing upper mold and the second cold forging finishing upper mold set, the cold forging finishing cavity plate include the first cold forging of coaxial arrangement Finishing lower die, the second cold forging finishing lower die and third cold forging finishing lower die,
The first cold forging finishing upper mold is cylinder punch-pin, is equipped with gear non-operative end mould at the model end of end,
The second cold forging finishing upper mold is cylinder, and the first cold forging finishing upper mold clamping is set to the second cold forging finishing upper mold It is interior, it is moved synchronously during forging and stamping with the first cold forging finishing upper mold, protects the first cold forging finishing upper mold,
The first cold forging finishing lower die is cylinder cavity plate, and protrusion part is equipped among the upper surface of model end, and protrusion part is straight Diameter is equal to the gear diameter of axle to be processed, and model end upper surface periphery is additionally provided with remaining protrusion part, remaining described protrusion is divided into directly Bevel gear inoperative ground shape model,
Second cold forging finishing lower die is cylinder, internal diameter of the internal diameter less than the first cold forging finishing lower die, the second cold forging finishing Lower die outer diameter is equal with the first cold forging finishing outer diameter, and is equal to third cold forging die finish internal diameter,
The third cold forging finishing lower die is cylinder, and internal diameter and the first, second cold forging die finish outer diameter are equal, first cold forging Finishing lower die is set to above the second cold forging finishing lower die, and the first, second cold forging die finish is set to third cold forging finishing lower die It is interior.
2. the mold according to claim 1 for big specification straight bevel gear finish forge molding machine, it is characterised in that: institute It states the first flat-die upper mold, the second flat-die upper mold and setting is mutually clamped by step.
3. the mold according to claim 1 for big specification straight bevel gear finish forge molding machine, it is characterised in that: institute It states and leads between the first warm forging forming upper mold, the second warm forging forming upper mold, third warm forging forming upper mold and the 4th warm forging forming upper mold It crosses step and is mutually clamped setting.
4. the mold according to claim 1 for big specification straight bevel gear finish forge molding machine, it is characterised in that: institute It states and leads between the first warm forging shaping upper mold, the second warm forging shaping upper mold, third warm forging shaping upper mold and the 4th warm forging shaping upper mold It crosses step and is mutually clamped setting.
5. the mold according to claim 1 for big specification straight bevel gear finish forge molding machine, it is characterised in that: institute It states the first cold forging finishing upper mold and the second cold forging finishing upper mold and setting is mutually clamped by step.
CN201820545649.5U 2018-04-17 2018-04-17 A kind of mold for big specification straight bevel gear finish forge molding machine Active CN208408424U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021238307A1 (en) * 2020-05-24 2021-12-02 江苏飞船股份有限公司 Precision forming die for warm forging of straight bevel gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021238307A1 (en) * 2020-05-24 2021-12-02 江苏飞船股份有限公司 Precision forming die for warm forging of straight bevel gear

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