CN214442736U - Flange finish forging upper die and mounting structure thereof - Google Patents

Flange finish forging upper die and mounting structure thereof Download PDF

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Publication number
CN214442736U
CN214442736U CN202120232550.1U CN202120232550U CN214442736U CN 214442736 U CN214442736 U CN 214442736U CN 202120232550 U CN202120232550 U CN 202120232550U CN 214442736 U CN214442736 U CN 214442736U
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China
Prior art keywords
die
forging
rod
hammer
forging hammer
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Expired - Fee Related
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CN202120232550.1U
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Chinese (zh)
Inventor
彭玉香
何庆桥
彭小庆
程天贵
徐兵
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Jinan Haote Industry And Trade Co ltd
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Jinan Haote Industry And Trade Co ltd
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Priority to CN202120232550.1U priority Critical patent/CN214442736U/en
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Abstract

The application relates to a flange finish forging upper die and an installation structure thereof, relating to the technical field of metal processing equipment, wherein the upper die comprises an outer die and an inner die, the outer die is sleeved outside the inner die, the inner die and the outer die are arranged in a split manner, and one end of the inner die extends out of the outer die to form a boss; the mounting structure comprises a forging hammer and the upper die, the outer die of the upper die and the inner die of the upper die are fixedly connected to the forging hammer, an upper push rod is fixedly connected to the forging hammer, and the upper push rod is connected with an ejector rod of the upper die. When the inner die is worn and damaged, the inner die can be pulled out of the outer die, and a new inner die is arranged in the outer die in a penetrating mode, so that the whole upper die does not need to be replaced, and materials are saved.

Description

Flange finish forging upper die and mounting structure thereof
Technical Field
The application relates to the field of metal processing equipment, in particular to a flange finish forging upper die and a mounting structure thereof.
Background
A Flange (Flange), also known as a Flange collar or Flange. The flange is a part for connecting the shafts and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the equipment for the connection between two pieces of equipment, such as reducer flanges. The production process of the flange mainly comprises four processes of forging, casting, cutting and rolling, wherein the number of the cast flange and the forged flange is large. The cast flange has the advantages of accurate blank shape and size, small processing amount and low cost, but has casting defects (air holes, cracks and inclusions); the internal structure of the casting is poor in streamline (if the casting is a cutting piece, the streamline is poor); the forged flange generally has lower carbon content than the cast flange and is not easy to rust, the forged piece has good streamline shape and compact structure, and the mechanical property of the forged flange is superior to that of the cast flange.
The flange forging process mostly comprises the following process steps:
s1: blanking, cutting the steel material into blanks according to the weight;
s2: calcining, namely heating the blank to facilitate subsequent forging and pressing;
s3: forging, wherein the blank is forged into a blank by a forging press, and the forging comprises the following three steps:
s31: preliminary forging, performing preliminary forging on the blank to enable the blank to be close to the shape of a blank;
s32: final forging, namely forging and pressing the blank again to ensure that the outer contour of the blank is the same as that of the blank, but the central part of the blank is provided with a connecting skin;
s33: cutting the skin, namely cutting the skin of the blank to enable the blank to become a blank;
s4: cooling, namely cooling the blank to room temperature;
s5: and machining, namely machining the blank into a finished flange.
At S32: the forging press is required to be used in the finish forging process, the upper die is detachably and fixedly connected to the forging hammer of the forging press and comprises a die body, and a boss is integrally formed at one end, far away from the forging hammer, of the die body. When the blank is forged and pressed, the boss is firstly contacted with the blank, then the boss gradually extrudes the blank, and a groove is formed at one end face of the blank close to the upper die, so that the thickness of the axle center of the blank is reduced, and the subsequent skin cutting step is convenient to carry out.
In view of the above-mentioned related technologies, the inventor believes that, during forging and pressing, the boss always contacts with the blank first, so that the boss is seriously worn, and when the precision of the boss cannot reach the processing precision, the whole upper die needs to be replaced, which causes material waste.
SUMMERY OF THE UTILITY MODEL
In order to reduce the waste of materials, the application provides a flange finish forging upper die and a mounting structure thereof.
In a first aspect, the application provides a flange finish forging upper die, which adopts the following technical scheme:
the flange finish forging upper die comprises an outer die and an inner die, wherein the outer die is sleeved outside the inner die, the inner die and the outer die are arranged in a split mode, and one end of the inner die extends out of the outer die to form a boss.
By adopting the technical scheme, the inner mold and the outer mold can be made of different materials, so that the strength of the inner mold is greater than that of the outer mold, and the cost for manufacturing the upper mold is saved; when the blank is forged and pressed, the boss of the inner die is firstly contacted with the blank, and then the outer die is contacted with the blank, so that the blank is extruded; when the inner mold is worn and damaged, the inner mold can be drawn out from the outer mold, and a new inner mold is arranged in the outer mold in a penetrating way, so that the whole upper mold does not need to be replaced, and the material is saved.
Optionally, the boss of the inner die is arranged in a circular truncated cone shape, and the diameter of one end, far away from the outer die, of the boss is smaller than the diameter of the boss close to the outer die.
By adopting the technical scheme, when the upper die is assembled, the outer die is sleeved on the inner die from the end of the inner die provided with the boss, and the end of the boss extending out of the outer die is convenient to penetrate through the outer die due to the fact that the diameter of the end of the boss extending out of the outer die is smaller than the diameter of the part of the outer die not extending out of the outer die, so that the upper die is convenient to assemble.
Optionally, a mandril hole is coaxially formed in the inner die, a mandril coaxially penetrates through the mandril hole, the mandril is connected with the inner die in a sliding manner along the axis of the mandril, and the end part of the mandril is flush with the end part of the boss.
By adopting the technical scheme, when the blank is forged and pressed, the blank is easy to adhere to the boss of the inner die after being pressed and extended, when the forging and pressing are finished, the ejector rod and the inner die slide relatively, the ejector rod extends out of the boss, so that the blank can be ejected from the boss, and the probability of adhering the blank to the upper die after the forging and pressing are finished is reduced.
Optionally, the ejector rod includes a rod portion and a table portion, the ejector rod hole includes a guide portion and a positioning portion, the rod portion is inserted into the guide portion, an outer peripheral surface of the rod portion is attached to an inner peripheral surface of the guide portion, the table portion is inserted into the positioning portion, the table portion is attached to the positioning portion, and a diameter of the table portion is greater than a diameter of the rod portion.
By adopting the technical scheme, when the blank is forged and pressed, the blank can apply the reaction force to the ejector rod, and the ejector rod is difficult to slide towards the direction away from the blank due to the arrangement of the bench part, so that the blank is difficult to flow into the ejector rod hole, the yield of the blank is improved, and the material is saved.
Optionally, the table portion is arranged in a circular table shape, a diameter of one end of the table portion, which is far away from the rod portion, is larger than a diameter of one end of the table portion, which is close to the rod portion, and an outer peripheral surface of the table portion is attached to an inner peripheral surface of the positioning portion.
By adopting the technical scheme, when the blank is forged and pressed, the blank can apply the counterforce to the ejector rod, so that the outer peripheral surface of the table part is tightly propped against the inner peripheral surface of the positioning part, the blank is not easy to flow between the table part and the positioning part when deformed, and the material is saved; meanwhile, the probability that the ejector rod hole is blocked by the blank is reduced, and the reliability of the ejector rod during sliding is improved.
In a second aspect, the present application provides a mounting structure of a flange finish forging upper die, which adopts the following technical scheme:
the utility model provides a mounting structure of mould on flange finish forging, includes forging hammer and as the first aspect last mould, the external mold of going up the mould with the equal fixed connection of centre form of last mould is in on the forging hammer, slide on the forging hammer and be connected with the push rod, the push rod with the ejector pin of last mould is connected.
By adopting the technical scheme, when the boss extrudes a blank, the inner die directly transmits force to the forging hammer, so that the outer die can reduce stress and prolong the service life of the outer die; when the inner mold is damaged, the inner mold can be drawn out of the outer mold, and a new inner mold is arranged in the outer mold in a penetrating way, so that the whole upper mold does not need to be replaced, and the material is saved.
Optionally, one end of the rod part, which is far away from the table part, is connected with a pressure-bearing nut in a threaded manner, a compression spring is sleeved on the rod part, a spring groove is formed in one end, which is close to the forging hammer, of the inner die, the compression spring is arranged in the spring groove, one end of the compression spring is abutted to the groove bottom of the spring groove, the other end of the compression spring is abutted to the pressure-bearing nut, and one end, which is far away from the table part, of the rod part is abutted to the upper push rod.
By adopting the technical scheme, the rod part is abutted against the upper push rod, so that the connecting difficulty between the rod part and the upper push rod is reduced, and the inner die is convenient to disassemble, assemble and replace; when the forging and pressing are finished, the upper push rod pushes the ejector rod and the inner die to slide relatively, so that the ejector rod extends out of the boss, the blank can be ejected from the boss, and when the upper push rod is retracted, the compression spring can push the ejector rod to reset, so that the next forging and pressing are facilitated.
Optionally, the outer die is coaxially and fixedly connected with a connecting portion, the diameter of the connecting portion, which is close to one end of the forging hammer, is larger than the diameter of the connecting portion, which is far away from one end of the forging hammer, a connecting member is coaxially sleeved outside the connecting portion, the inner circumferential surface of the connecting member abuts against the outer circumferential surface of the connecting portion, a plurality of through holes are formed in the connecting member, a fastening bolt penetrates through each through hole, and the fastening bolt penetrates through the through holes and then is in threaded connection with the forging hammer.
By adopting the technical scheme, when the outer die is installed, the connecting piece is sleeved outside the connecting part, then the fastening bolt penetrates through the through hole and is in threaded connection with the forging hammer, and the bolt head of the fastening bolt is tightly pressed on one end face, far away from the forging hammer, of the connecting piece, so that the outer die can be tightly pressed on the forging hammer; when the outer die is replaced, the connecting piece can be used for multiple times, so that the material consumption of the outer die is reduced, the resources are saved, and the processing cost of the outer die is reduced.
Optionally, a clamping groove is further formed in one end, close to the forging hammer, of the outer die, a clamping block is fixedly connected to the outer peripheral surface of one end, close to the forging hammer, of the inner die, and the clamping block is clamped in the clamping groove.
By adopting the technical scheme, before the outer die is installed, the inner die is firstly penetrated in the outer die, and then the outer die is installed on the forging hammer; after the outer die is installed on the forging hammer, the outer die can tightly press the inner die on the forging hammer, so that the installation difficulty of the inner die is reduced, and the installation efficiency is improved.
Optionally, a positioning groove is formed in the forging hammer, the clamping block is further clamped in the positioning groove, and the outer peripheral surface of the clamping block abuts against the inner peripheral surface of the positioning groove.
When the contact surface of centre form and blank is not perpendicular to the moving direction of centre form, the component force of a perpendicular to centre form moving direction can be applied for the centre form to the blank, through adopting above-mentioned technical scheme, the outer peripheral face of fixture block supports tightly with the inner peripheral surface of constant head tank, and then provides reaction force, and the radial force that so fastening bolt need bear just can reduce, has reduced the probability of fastening bolt last screw thread deformation, and then the dismantlement of the last mould of being convenient for.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the split arrangement of the inner mold and the outer mold, when the inner mold is damaged, the inner mold can be pulled out of the outer mold, and a new inner mold is arranged in the outer mold in a penetrating manner, so that the whole upper mold does not need to be replaced, the material is saved, and the service life of the outer mold is prolonged.
2. Through the arrangement of the ejector rod, when forging and pressing are finished, the ejector rod and the inner die slide relatively, and the ejector rod extends out of the boss, so that the blank can be ejected from the boss, and the probability that the blank is adhered to the upper die after forging and pressing are reduced.
3. The platform part is arranged to be in a circular platform shape, so that the blank is not easy to flow between the platform part and the positioning part when deformed, and materials are saved; meanwhile, the probability that the ejector rod hole is blocked by the blank is reduced, and the reliability of the ejector rod during sliding is improved.
4. Through compression spring's setting, and the one end that stage portion was kept away from in pole portion with the push up rod butt has reduced the degree of difficulty of being connected between pole portion and the push up rod, and then the dismouting of the centre form of being convenient for is changed.
Drawings
Fig. 1 is an overall structural view of the related art;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view illustrating an installation structure of the inner mold and the mandrel according to an embodiment of the present application;
fig. 4 is a schematic view of a mounting structure between the inner die, the outer die and the forging hammer according to the embodiment of the application.
Description of reference numerals: 110. forging a hammer; 111. a push rod is arranged; 112. positioning a groove; 200. an upper die; 210. a mold body; 220. a boss; 300. an outer mold; 310. a connecting portion; 320. a card slot; 400. an inner mold; 410. a jack rod hole; 411. a guide portion; 412. a positioning part; 420. a spring slot; 430. a clamping block; 500. a top rod; 510. a rod portion; 520. a table section; 530. a pressure-bearing nut; 540. a compression spring; 600. a connecting member; 610. and fastening the bolt.
Detailed Description
The present application is described in further detail below with reference to figures 2-4.
The embodiment of the present application provides a flange finish forging upper die and a mounting structure thereof, and referring to fig. 1, the flange finish forging upper die and the mounting structure thereof include an upper die 200 for shaping a blank and a forging hammer 110 for driving the upper die 200 to move. The upper die 200 includes an inner die 400 for extruding the billet to be deformed, an outer die 300 for assisting in the extrusion of the billet to be deformed, and a lift pin 500 for removing the billet from the upper die 200.
Referring to fig. 3, the inner mold 400 is cylindrically configured, and a ejector rod hole 410 is coaxially formed on the inner mold 400, the ejector rod 500 coaxially penetrates through the ejector rod hole 410, and the ejector rod 500 slides in the ejector rod hole 410 along the axial direction thereof. The stem 500 includes a stem portion 510 and a table portion 520, and the stem hole 410 includes a guide portion 411 and a positioning portion 412. The rod portion 510 is arranged in a cylindrical shape, and the rod portion 510 is inserted into the guide portion 411; the terrace 520 is provided in a circular terrace shape, and a diameter of an end of the terrace 520 far from the rod part 510 is larger than that of an end near the rod part 510, and a diameter of an end of the terrace 520 near the rod part 510 is equal to that of the rod part 510. The positioning portion 412 has the same shape as the terrace 520, and the outer peripheral surface of the terrace 520 is in contact with the inner peripheral surface of the positioning portion 412 in the initial state.
Referring to fig. 3, a compression spring 540 is sleeved on an outer circumferential surface of one end of the rod portion 510 away from the table portion 520, a spring groove 420 for placing the spring is further opened on the inner mold 400, the spring groove 420 is coaxially disposed at one end of the guide portion 411 away from the positioning portion 412, and a diameter of the spring groove 420 is larger than a diameter of the guide portion 411. When the compression spring 540 is sleeved on the rod portion 510, the compression spring 540 is also inserted into the spring groove 420. A pressure-bearing nut 530 is threadedly coupled to an end of the rod portion 510 remote from the stage 520, and after the compression spring 540 and the pressure-bearing nut 530 are mounted, one end of the compression spring 540 abuts against a groove bottom of the spring groove 420, and the other end of the compression spring 540 abuts against the pressure-bearing nut 530. The compression spring 540 thus always applies a force to the lift rod 500, so that the land 520 always tends to be caught in the positioning portion 412.
Referring to fig. 2 and 4, the outer mold 300 is cylindrically configured, the outer mold 300 is coaxially sleeved outside the inner mold 400, and the outer circumferential surface of the inner mold 400 abuts against the inner circumferential surface of the outer mold 300. The outer peripheral surface of the outer mold 300 is coaxially and integrally formed with a connecting portion 310, the diameter of one end of the connecting portion 310 in the axial direction is larger than that of the other end, and the diameter of the end of the connecting portion 310 with the smaller diameter is the same as the outer diameter of the outer mold 300. When the outer die 300 is mounted to the hammer 110, the end of the web having the larger diameter faces the hammer 110.
Referring to fig. 2 and 4, the connecting portion 310 is coaxially sleeved with a connecting member 600, an inner circumferential surface of the connecting member 600 abuts against an outer circumferential surface of the connecting portion 310, a plurality of through holes are uniformly formed in the connecting member 600 along the circumferential direction of the connecting member, a fastening bolt 610 penetrates through each through hole, and the axis of each through hole is parallel to the axis of the connecting member 600. The fastening bolt 610 penetrates through the through hole and then is in threaded connection with the forging hammer 110, so that the connecting piece 600 is fixedly connected to the forging hammer 110; the outer die 300 is pressed against the hammer 110 by the connector 600.
Referring to fig. 2 and 4, the inner diameter of the end of the connecting member 600 close to the hammer 110 is smaller than the diameter of the end of the connecting part 310 close to the hammer 110, and the inner diameter of the end of the connecting member 600 remote from the hammer 110 is larger than the diameter of the end of the connecting part 310 remote from the hammer 110. When the connecting member 600 is sleeved on the connecting portion 310, the connecting member 600 is firstly sleeved on the outer die 300, and since the inner diameter of the end of the connecting member 600 far away from the forging hammer 110 is larger than the diameter of the end of the connecting portion 310 far away from the forging hammer 110 and larger than the diameter of the outer die 300, when the connecting member 600 is sleeved on the connecting portion 310, the connecting member 600 is not easily clamped on the outer die 300, thereby facilitating the disassembly and assembly of the upper die 200. When the inner circumferential surface of the connecting member 600 is pressed against the outer circumferential surface of the connecting portion 310, a gap is still left between the connecting member 600 and the forging hammer 110, and the connecting member 600 is slightly deformed when the fastening bolt 610 is tightened, so that the outer die 300 and the inner die 400 are less likely to move relative to the forging hammer 110, and the forging precision is improved.
Referring to fig. 3 and 4, when the inner die 400 is pressed against the hammer 110 by the outer die 300, an end of the inner die 400 remote from the hammer 110 extends out of the outer die 300, thereby forming the boss 220. The boss 220 of the inner die 400 is arranged in a circular truncated cone shape, and the diameter of one end of the boss 220 far away from the forging hammer 110 is smaller than that of the end close to the outer die 300. When the blank is extruded by the inner die 400, the blank is not easy to adhere to the boss 220 of the inner die 400, so that the safety is improved; when the outer mold 300 is sleeved on the inner mold 400, the inner mold 400 is easier to penetrate into the outer mold 300, and the difficulty in installing the inner mold 400 is reduced. The end of the table part 520 far away from the rod part 510 is flush with the end of the inner die 400 far away from the forging hammer 110, so that the rod part 510 blank is not easy to coat the table part 520 when being extruded and deformed, and the blank is convenient to take down from the inner die 400, thereby reducing the labor intensity of operators and improving the safety.
Referring to fig. 3 and 4, a clamping groove 320 is further formed in an inner circumferential surface of the outer mold 300 at an end close to the hammer 110, a clamping block 430 is coaxially and integrally formed on an outer circumferential surface of the inner mold 400, the clamping block 430 is disposed at an end of the inner mold 400 far away from the positioning portion 412, the clamping block 430 is clamped in the clamping groove 320, and an outer circumferential surface of the clamping block 430 abuts against the inner circumferential surface of the clamping groove 320. Thus, when the outer die 300 is pressed against the hammer 110 by the fastening bolts 610, the inner die 400 is pressed against the hammer 110 by the outer die 300.
Referring to fig. 2 and 4, the hammer 110 is provided with a positioning groove 112, and when the inner die 400 is pressed against the hammer 110 by the outer die 300, the latch 430 is further latched in the positioning groove 112, and an outer circumferential surface of the latch 430 abuts against an inner circumferential surface of the positioning groove 112. Since the inner die 400 extrudes the billet, the billet will exert a reaction force on the inner die 400; when the reaction force applied to the inner mold 400 by the blank is perpendicular to the axis of the inner mold 400, the positioning groove 112 restricts the movement of the inner mold 400, so as to reduce the stress of the fastening bolt 610, make the fastening bolt 610 not easy to bend, and further facilitate the detachment of the fastening bolt 610.
Referring to fig. 3 and 4, the forging hammer 110 is provided with an upper push rod 111, an axial center of the upper push rod 111 is coaxial with an axial center of the inner die 400, and the upper push rod 111 is connected to the upper push rod 111 in a sliding manner along the axial center thereof. When the inner die 400 is pressed against the hammer 110, the upper push rod 111 abuts on one end of the rod portion 510 away from the table portion 520. When the billet is adhered to the upper die 200, the push-up rod 111 can push the push rod 500 to slide, so that the platform part 520 extends out of the positioning part 412, the billet can be pushed up and down from the upper die 200, and the probability of the billet adhering to the upper die 200 after forging is reduced.
The implementation principle of the flange finish forging upper die and the installation structure thereof in the embodiment of the application is as follows:
when the upper die 200 is installed on the forging hammer 110, the ejector rod 500 is first inserted into the ejector rod hole 410, then the compression spring 540 is sleeved on the ejector rod 500, and then the pressure-bearing nut 530 is screwed on the ejector rod 500, so that the installation of the inner die 400 and the ejector rod 500 can be completed. Then, the inner die 400 is inserted into the outer die 300, then the connecting piece 600 is sleeved on the outer die 300, and then the fastening bolt 610 is screwed on the forging hammer 110, so that the installation of the outer die 300 and the inner die 400 can be completed. Because the inner mold 400 and the outer mold 300 are arranged in a split manner, the inner mold 400 and the outer mold 300 can be made of different materials, so that the strength of the inner mold 400 is greater than that of the outer mold 300, and the cost for manufacturing the upper mold 200 is saved; when the blank is forged, the boss 220 of the inner die 400 is firstly contacted with the blank, and then the outer die 300 is contacted with the blank, so that the blank is extruded; when the inner mold 400 is worn and damaged, the inner mold 400 can be pulled out from the outer mold 300, and a new inner mold 400 is inserted into the outer mold 300, so that the whole upper mold 200 does not need to be replaced, and the material is saved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The flange finish forging upper die is characterized by comprising an outer die (300) and an inner die (400), wherein the outer die (300) is sleeved outside the inner die (400), the inner die (400) and the outer die (300) are arranged in a split mode, and one end of the inner die (400) extends out of the outer die (300) to form a boss (220).
2. A flange finish forging die set forth in claim 1, wherein: the boss (220) of the inner die (400) is arranged in a circular truncated cone shape, and the diameter of one end, far away from the outer die (300), of the boss (220) is smaller than that of the end, close to the outer die (300).
3. A flange finish forging die set forth in claim 1 or 2, wherein: the inner die (400) is coaxially provided with a mandril hole (410), a mandril (500) coaxially penetrates through the mandril hole (410), the mandril (500) is connected with the inner die (400) in a sliding manner along the axis of the mandril (500), and the end part of the mandril (500) is flush with the end part of the boss (220).
4. A flange finish forging die set forth in claim 3, wherein: the ejector rod (500) comprises a rod part (510) and a platform part (520), the ejector rod hole (410) comprises a guide part (411) and a positioning part (412), the rod part (510) penetrates through the guide part (411), the outer peripheral surface of the rod part (510) is attached to the inner peripheral surface of the guide part (411), the platform part (520) penetrates through the positioning part (412), the platform part (520) is attached to the positioning part (412), and the diameter of the platform part (520) is larger than that of the rod part (510).
5. A flange finish forging die set forth in claim 4, wherein: the terrace part (520) is arranged in a circular truncated cone shape, the diameter of one end, far away from the rod part (510), of the terrace part (520) is larger than that of one end, close to the rod part (510), of the terrace part, and the outer peripheral surface of the terrace part (520) is attached to the inner peripheral surface of the positioning part (412).
6. The utility model provides a flange finish forge mounting structure of mould which characterized in that: the die comprises a forging hammer (110) and the upper die (200) as claimed in claim 4 or 5, wherein the outer die (300) of the upper die (200) and the inner die (400) of the upper die (200) are both fixedly connected onto the forging hammer (110), an upper push rod (111) is connected onto the forging hammer (110) in a sliding manner, and the upper push rod (111) is connected with an ejector rod (500) of the upper die (200).
7. A flange finish forging die attachment structure according to claim 6, wherein: one end of the rod portion (510) far away from the table portion (520) is connected with a pressure-bearing nut (530) in a threaded mode, a compression spring (540) is sleeved on the rod portion (510), one end of the inner die (400) close to the forging hammer (110) is provided with a spring groove (420), the compression spring (540) is arranged in the spring groove (420), one end of the compression spring (540) is abutted to the groove bottom of the spring groove (420), the other end of the compression spring (540) is abutted to the pressure-bearing nut (530), and one end of the rod portion (510) far away from the table portion (520) is abutted to the upper push rod (111).
8. A flange finish forging die attachment structure according to claim 6 or 7, wherein: coaxial fixedly connected with connecting portion (310) on external mold (300), connecting portion (310) are close to the diameter of forging hammer (110) one end is greater than and keeps away from the diameter of forging hammer (110) one end, the outer coaxial cover of connecting portion (310) is equipped with connecting piece (600), the inner peripheral surface of connecting piece (600) with the outer peripheral face butt of connecting portion (310), a plurality of through-holes have been seted up on connecting piece (600), every fastening bolt (610) all wear to be equipped with in the through-hole, fastening bolt (610) pass behind the through-hole with forging hammer (110) threaded connection.
9. A flange finish forging die attachment structure according to claim 8, wherein: a clamping groove (320) is further formed in one end, close to the forging hammer (110), of the outer die (300), a clamping block (430) is fixedly connected to the outer peripheral surface of one end, close to the forging hammer (110), of the inner die (400), and the clamping block (430) is clamped in the clamping groove (320).
10. A flange finish forging die attachment structure according to claim 9, wherein: the forging hammer (110) is provided with a positioning groove (112), the clamping block (430) is clamped in the positioning groove (112), and the outer peripheral surface of the clamping block (430) is abutted to the inner peripheral surface of the positioning groove (112).
CN202120232550.1U 2021-01-26 2021-01-26 Flange finish forging upper die and mounting structure thereof Expired - Fee Related CN214442736U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120232550.1U CN214442736U (en) 2021-01-26 2021-01-26 Flange finish forging upper die and mounting structure thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120232550.1U CN214442736U (en) 2021-01-26 2021-01-26 Flange finish forging upper die and mounting structure thereof

Publications (1)

Publication Number Publication Date
CN214442736U true CN214442736U (en) 2021-10-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120232550.1U Expired - Fee Related CN214442736U (en) 2021-01-26 2021-01-26 Flange finish forging upper die and mounting structure thereof

Country Status (1)

Country Link
CN (1) CN214442736U (en)

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Granted publication date: 20211022