CN112935164A - One-die multi-part and multi-station forging method for long joint blank for textile machinery - Google Patents
One-die multi-part and multi-station forging method for long joint blank for textile machinery Download PDFInfo
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- CN112935164A CN112935164A CN202110274369.1A CN202110274369A CN112935164A CN 112935164 A CN112935164 A CN 112935164A CN 202110274369 A CN202110274369 A CN 202110274369A CN 112935164 A CN112935164 A CN 112935164A
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- 238000005242 forging Methods 0.000 title claims abstract description 302
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000004753 textile Substances 0.000 title claims abstract description 16
- 238000004080 punching Methods 0.000 claims abstract description 209
- 238000009966 trimming Methods 0.000 claims abstract description 154
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000009940 knitting Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000007723 die pressing method Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a one-die multi-part and multi-station forging method of a long joint blank for textile machinery, which is characterized in that a plurality of blanks are continuously transferred among a plurality of processing stations to finish synchronous continuous processing of the plurality of blanks among the plurality of stations; the multiple processing stations comprise a final forging station arranged in a main stamping area in the middle of the master die frame according to the required stamping force, and a punching station and an edge cutting station positioned in secondary stamping areas on two sides of the master die frame; the forging die, the punching die and the trimming die are placed into a pair of devices, so that the original three processes of forging, punching and trimming which need to be completed independently by three devices can be completed by only one device, and the left and right positions of the forging die on the main die frame are quickly adjusted by installing the positioning wedge blocks in the pressing block grooves and fixing the pressing blocks by the forging die, wherein the pressing block grooves and the pressing block grooves are symmetrically distributed on the main die frame along the transverse and longitudinal central axes.
Description
Technical Field
The invention relates to the technical field of long joint forming of weaving machinery, in particular to a method for forging a long joint blank for textile machinery in a mode of multiple pieces and multiple stations.
Background
The long joint is used as an important connecting mechanism of the whole warp knitting machine and plays a significant role in the whole warp knitting machine, the long joint is always in a working environment with strong impact, large abrasion and high stress, various defects such as cracks, depressions and the like are easily generated due to large acting force, various failure conditions of the device are generated, the use stability of the machine is seriously influenced, and the long joint of the warp knitting machine is required to have performances such as large strength, fatigue resistance, toughness and the like.
At present, most of guide bar hanger bases of warp knitting machines adopt forming modes such as casting, forging and welding, wherein the forming mode of forging has the advantages of stable casting quality, few defects, fine and smooth structure, good mechanical property and the like compared with casting and welding, but the conventional forging process comprises the working procedures of blanking, heating, forging and trimming, more equipment, complex working procedures and long time consumption, the efficiency is low, meanwhile, the utilization rate of materials is low, and the aims of energy conservation and emission reduction which are vigorously advocated by the state at the present stage cannot be met.
In addition, before the installation forging mould, need earlier carry out the location installation on press or press external device respectively with the upper and lower mould of forging mould to current forging mould's location installation process is comparatively loaded down with trivial details, when needs change forging mould specification and be used for processing different stocks, complex operation and consuming time longer, and install the upper and lower mould precision of coincideing that is difficult to ensure the forging mould.
Disclosure of Invention
The invention aims to provide a one-die multi-part and multi-station forging method for a long joint blank for textile machinery, which aims to solve the problems that the operation of replacing a forging die is complicated, the time consumption is long and the fit precision is difficult to guarantee in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a long joint blank forging method for textile machinery uses one mould multiple pieces and multiple working positions, continuously transfers multiple blanks among multiple working positions, completes synchronous continuous processing of multiple blanks among multiple working positions; wherein,
a plurality of processing stations are arranged in the master die set and used for providing blank final forging, forge piece punching and forge piece trimming, and the plurality of processing stations comprise a final forging station arranged in a main punching area in the middle of the master die set according to the required punching force, and punching stations and trimming stations positioned in secondary punching areas on two sides of the master die set;
the finish forging station is used for stamping and forging the blank into a set shape of the inner cavity of the die, the punching station is used for punching at a corresponding position on a forged workpiece, the trimming station is used for trimming the redundant parts of the punched forged workpiece, and the total die frame synchronously and continuously carries with the finish forging station, the punching station and the trimming station for simultaneous continuous stamping processing.
As a preferred scheme of the invention, the master die frame comprises an upper die frame and a lower die frame which have the same structure, the upper die frame and the lower die frame are both used for connecting a die frame press through being provided with die frame hoisting holes, the side surface of the upper die frame is used for being fixed on the die frame press through being provided with an upper die frame positioning groove, the side surface of the lower die frame is used for being fixed on the die frame press through being provided with a lower die frame positioning groove, and a plurality of positioning holes are arranged in the upper die frame positioning groove and the lower die frame positioning groove and used for connecting bolts for fixing;
the forging upper die is provided with an upper die hoisting hole for fixedly connecting a mounting bolt with the upper die frame, and the forging lower die is provided with a lower die hoisting hole for fixedly connecting the mounting bolt with the lower die frame;
go up being equipped with in the die carrier and being used for inserting the heat pipe and carrying out the last die carrier heated hole that heats, be equipped with in the die carrier down and be used for inserting the heat pipe and carry out the lower die carrier heated hole that heats, be equipped with in the forging of finish forging station and be used for inserting the heat pipe and carry out the forging mould heated hole that heats, be equipped with in the forging lower mould of finish forging station and be used for inserting the heat pipe and carry out the forging lower mould heated hole that heats, go up die carrier, lower die carrier, forge and insert the heating device formula synchronous heating as an organic whole of heat pipe in the mould.
As a preferred scheme of the invention, at least two through holes which are symmetrically distributed about the front central axis and the rear central axis of the upper die frame and the lower die frame are arranged at the central positions of the upper die frame and the lower die frame, and the upper die and the lower die of the finish forging station are respectively positioned in the hoisting holes on the upper die frame and the lower die frame by screwing bolts;
the left side of the bottom end of the upper die frame is provided with at least two punching die slide rails which are symmetrically distributed about the front central axis and the rear central axis of the upper die frame, and the upper die frame and the lower die frame are respectively positioned and fixed on an upper die and a lower die of a punching station through the corresponding punching die slide rails;
the upper die frame and the lower die frame are respectively positioned and fix an upper die and a lower die of a trimming station through the at least two upper trimming die slide rails and the two lower trimming die slide rails;
and a blanking groove for a finished product forge piece to fall down is arranged between the two lower trimming die slide rails on the upper right side of the lower die frame.
As a preferred scheme of the invention, a plurality of pressing block grooves distributed around the periphery of a finish forging station die are arranged on opposite surfaces of the upper die frame and the lower die frame, pressing blocks and wedge blocks are arranged in the plurality of pressing block grooves of the upper die frame and the lower die frame and are used for fixing a forging upper die and a forging lower die of the finish forging station respectively, a forging die base plate is arranged between the plurality of pressing block grooves on the lower die frame, and the height of the forging lower die is adjusted by the forging die base plate through adjusting the height;
the left side and the right side of the forging upper die and the forging lower die are distributed with at least two clamping blocks which are symmetrically distributed about the front central axis and the rear central axis of the forging upper die and the forging lower die, and the front side and the rear side of the forging upper die and the forging lower die are distributed with at least two wedge blocks which are symmetrically distributed about the left central axis and the right central axis of the forging upper die and;
the wedge block is used for positioning the forging upper die and the forging lower die, the pressing block is used for pressing and fixing the forging upper die and the forging lower die, and the installation sequence of the wedge block is superior to that of the pressing block.
As a preferred scheme of the invention, four corners of the forging upper die are provided with vertically and downwardly extending integrated latches, the latches are integrally rectangular, corners of the latches facing the inner side of the forging upper die are provided with chamfers, and four corners of the forging lower die are provided with latch grooves matched with the four corners of the forging upper die in a latch manner.
As a preferred scheme of the invention, a plurality of forging upper die cavities which have the shape of a forge piece and are arranged at equal intervals are arranged at the center of the bottom end of the forging upper die, an upper die flash groove bridge opening which is distributed around the periphery of the plurality of forging upper die cavities and is concave inwards is arranged on the forging upper die, and an upper die flash groove bin part which is concave inwards is arranged on the periphery of the forging upper die, which is positioned at the upper die flash groove bridge opening;
the forging die is characterized in that a plurality of lower forging die cavities with forging shapes and arranged at equal intervals are arranged at the center of the top end of the lower forging die, the lower forging die is provided with a plurality of lower die flash groove bridge openings distributed on the periphery of the lower forging die cavities and arranged inwards, and the periphery of the lower die flash groove bridge openings on the lower forging die is provided with an inwards-sunken lower die flash groove bin portion.
As a preferable scheme of the present invention, the plurality of die-shaped cavities are all arranged equidistantly on a central axis of the upper forging die and the lower forging die, and the plurality of die-shaped cavities are matched to position a blank.
As a preferred scheme of the invention, the upper punching die of the punching station consists of an upper punching die base plate, a punching die punch and a punching die pull plate, the upper punching die is fixedly connected with a plurality of punching die slide rails on the upper die frame in a positioning manner through the upper punching die base plate, and the punching die pull plate slides upwards along the punching die punch in an elastic manner;
the punching lower die is composed of a punching die lower backing plate, punching die pads and punching die edges, the punching lower die is fixedly connected with a plurality of punching die slide rails on a lower die frame in a positioning mode through the punching die lower backing plate, the bottom end of the punching die lower backing plate is lifted through at least two punching die pads to facilitate punching and blanking, a punching positioning cavity matched with the forged piece with the flash and without punching holes machined by the finish forging station is arranged in the center of the upper surface of each punching die edge, and the punching die punch head is continuously lowered in the punching positioning cavity on each punching die edge;
the upper die frame descends and the upper punching die punches the lower punching die, the upper punching die is matched with a punching die knife edge of the lower punching die through the punching die pulling plate to compress a forged piece with flash and without punching, and the punching die punch continuously descends and punches the position of the forged piece to be punched.
As a preferred scheme of the invention, the trimming upper die of the trimming station consists of a trimming die upper die base plate, a trimming die punch and a trimming die stripper plate, the trimming upper die is fixedly connected with a plurality of upper trimming die slide rails on the upper die frame in a positioning manner through the trimming die upper die base plate, and the trimming die stripper plate slides upwards along the trimming die punch elastically;
the lower trimming die of the trimming station consists of a lower trimming die base plate and a trimming die knife edge, the lower trimming die is fixedly connected with a plurality of lower trimming die slide rails on the lower die frame in a positioning manner through the lower trimming die base plate, and a trimming positioning cavity matched with the forged piece with the flash processed by the punching station is arranged at the center of the upper surface of the trimming die knife edge;
the upper die frame descends and is connected with the trimming upper die for punching the trimming lower die, the trimming upper die compresses the forged piece with the flash through the trimming die pull plate and the trimming die knife edge, and the trimming die punch continuously descends and punches and shears the redundant flash part of the forged piece with the flash.
As a preferred embodiment of the present invention, the processing of the plurality of blanks includes:
s100, before forming, firstly, placing an electric heating pipe into heating holes of an upper die, a lower die and an upper die frame and a lower die frame, heating the dies and the die frames until the dies and the die frames are heated to a preset temperature, then heating a rod-shaped aluminum alloy blank in a heating furnace to a preset temperature, and clamping and placing the rod-shaped aluminum alloy blank into a preset position of a forging die;
s200, starting a press, closing a forging upper die and a forging lower die under the action of the press, forging and pressing the blank in the die cavity, and performing regular forming flow on the blank according to the shape of the die cavity to finally form a long joint blank with flash and without punching;
s300, placing the forged piece with the flash and without the punched hole generated in the first step into a punching station to perform second step punching, and simultaneously repeating the first step forging process, so that after the main die finishes punching, a punched long joint blank with the flash is formed in the punching station, and a punched long joint blank with the flash and without the punched hole is formed in a finish forging station;
s400, placing the punched long joint blank with the flange generated in the first step into a trimming station to perform third step trimming, repeatedly starting the second step forging procedure to place the long joint blank with the flange and without the punched hole formed in the final forging station into a punching station to perform second step punching, repeatedly starting the first step forging procedure, generating a plurality of forged finished products in the trimming station after the main die completes the punching, and sequentially operating the steps to continuously and repeatedly process the three procedures.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the forging die, the punching die and the trimming die are arranged in one device, so that the three processes of forging, punching and trimming which are originally completed by three devices independently can be completed by only one device, the integration level of the device is improved, and the space occupied by the device is effectively saved;
in addition, the main die frame can synchronously complete three processes with three dies by single stamping, thereby greatly improving the production efficiency, reducing the energy consumption of equipment and improving the economic benefit;
(2) according to the invention, the positioning wedge blocks and the forging die fixing pressing blocks are arranged on the main die frame through the pressing block grooves which are symmetrically distributed along the transverse central axis and the longitudinal central axis, the forging die is quickly positioned at the front and rear positions on the main die frame through the positioning wedge blocks, and then the left and right positions of the forging die on the main die frame are adjusted through the forging die fixing pressing blocks, so that the relative positions of the upper die and the lower die of the die are quickly positioned and fixed, and the matching accuracy of the upper die and the lower die of the forging die after installation is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic view of the overall structure of a forging apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an upper mold frame according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a lower mold frame according to an embodiment of the present invention.
FIG. 4 is a schematic view of a wedge connection according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of a connection of pressure blocks provided by an embodiment of the present invention.
FIG. 6 is a schematic structural diagram of a forging upper die according to an embodiment of the present invention.
FIG. 7 is a schematic structural diagram of a forging lower die according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a stamping upper die according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of a trimming upper die according to an embodiment of the present invention.
FIG. 10 provides an overall flow chart for an embodiment of the present invention.
FIG. 11 is a flow chart of a process for manufacturing a blank according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-mounting a mould frame; 2-punching the upper backing plate of the die; 3-punching die punch; 4-drawing a punching die; 5-punching die cutting edges; 6-punching a lower backing plate of the die; 7-punching die cushion; 8-briquetting; 9-forging an upper die; 10-wedge block; 11-forging a lower die; 12-lower die carrier; 13-trimming die lower die backing plate; 14-trimming die edge; 15-removing the material plate by the trimming die; 16-a trimming die punch; 17-trimming die upper die backing plate; 18-upper mold frame positioning groove; 19-a through hole; 20-heating holes of the upper mold frame; 21-upper trimming die slide rail; 22-formwork hoisting holes; 23-positioning holes; 24-lower die holder positioning groove; 25-lower trimming die slide rail; 26-a charging chute; 27-a briquette groove; 28-forging a die backing plate; 29-punching die slide rail; 30-lower die frame heating holes; 31-hoisting holes of the upper die; 32-forging the upper die heating hole; 33-an integral latch; 34-upper mould flash groove bin part; 35-upper die flash groove bridge opening; 36-forging the upper die cavity; 37-lower die flash groove bin part; 38-the bridge opening of the lower die flash groove; 39-locking groove; 40-forging the lower die heating hole; 41-hoisting holes of the lower die; 42-forging the lower die mold cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to fig. 11, the present invention provides a method for forging a long joint blank for a textile machine with multiple work stations, wherein multiple blanks are continuously transferred between multiple work stations to complete synchronous and continuous processing of multiple blanks between multiple work stations; wherein,
a plurality of processing stations are arranged in the master die set and used for providing blank final forging, forge piece punching and forge piece trimming, and the plurality of processing stations comprise a final forging station arranged in a main punching area in the middle of the master die set according to the required punching force, and punching stations and trimming stations positioned in secondary punching areas on two sides of the master die set;
the finish forging station is used for stamping and forging the blank into a set shape of the inner cavity of the die, the punching station is used for punching at a corresponding position on a forged workpiece, the trimming station is used for trimming the redundant parts of the punched forged workpiece, and the total die frame synchronously and continuously carries with the finish forging station, the punching station and the trimming station for simultaneous continuous stamping processing.
The main die frame comprises an upper die frame 1 and a lower die frame 12 which are the same in structure, the upper die frame 1 and the lower die frame 12 are connected with a die frame press through die frame hoisting holes 22, the side face of the upper die frame 1 is used for being fixed on the die frame press through the die frame positioning groove 18, the side face of the lower die frame 12 is used for being fixed on the die frame press through the lower die frame positioning groove 24, and the upper die frame positioning groove 18 and the lower die frame positioning groove 24 are internally provided with a plurality of positioning holes for being connected with bolts used for fixing. The forging upper die 9 is provided with an upper die hoisting hole 31 for installing a bolt and is fixedly connected with the upper die frame 1, and the forging lower die 11 is provided with a lower die hoisting hole 41 for installing a bolt and is fixedly connected with the lower die frame 12.
Go up be equipped with in the die carrier 1 and be used for inserting the heat pipe and carry out the last die carrier heated hole 20 that heats, be equipped with in the die carrier 12 down and be used for inserting the heat pipe and carry out the lower die carrier heated hole 30 that heats, be equipped with in the forging of finish forging station in the mould 9 and be used for inserting the heat pipe and carry out the forging of heating and go up die heated hole 32, be equipped with in the forging lower mould 11 of finish forging station and be used for inserting the heat pipe and carry out the forging lower mould heated hole 40 that heats, go up die carrier 1, lower die carrier 12, forge and go up the mould 9 and forge the heating device formula synchronous heating.
At least two through holes 19 which are symmetrically distributed about the front central axis and the rear central axis of the upper die frame 1 and the lower die frame 12 are arranged at the central positions of the upper die frame 1 and the lower die frame 12, and bolts are screwed into the hoisting holes on the upper die frame 1 and the lower die frame 12 to respectively position an upper die and a lower die of the finish forging station;
the left side of the bottom end of the upper die frame 1 is provided with at least two punching die slide rails 29 which are symmetrically distributed about the front central axis and the rear central axis of the upper die frame 1, and the upper die frame 1 and the lower die frame 12 are respectively positioned and fixed on an upper die and a lower die of a punching station through the corresponding punching die slide rails 29;
the right side of the upper die carrier 1 is provided with at least two upper trimming die slide rails 21 which are symmetrically distributed about the front central axis and the rear central axis of the upper die carrier, the right side of the lower die carrier 12 is provided with two lower trimming die slide rails 25 which are symmetrically distributed about the front central axis and the rear central axis of the lower die carrier, and the upper die carrier 1 and the lower die carrier 12 are respectively positioned and fixed on an upper die and a lower die of a trimming station through the at least two upper trimming die slide rails 21 and the two lower trimming die slide rails 25;
and a blanking groove 26 for a finished product forge piece to fall is arranged between the two lower trimming die slide rails 25 on the upper right side of the lower die carrier 12.
A plurality of pressing block grooves 27 distributed around the periphery of a finish forging station die are formed in opposite surfaces of the upper die frame 1 and the lower die frame 12, pressing blocks 8 and wedge blocks 10 are installed in the pressing block grooves 27 to fix a forging upper die 9 and a forging lower die 11 of the finish forging station respectively, a forging die base plate 28 is arranged between the pressing block grooves 27 on the lower die frame 12, and the height of the forging lower die is adjusted by the forging die base plate 28 through adjusting the height;
at least two clamping blocks which are symmetrically distributed about the front central axis and the rear central axis of the forging upper die 9 and the forging lower die 11 are distributed on the left side and the right side of the forging upper die 9 and the forging lower die 11, and at least two wedge blocks 10 which are symmetrically distributed about the left central axis and the right central axis of the forging upper die 9 and the forging lower die 11 are distributed on the front side and the rear side of the forging lower;
the wedge 10 is used for positioning the forging upper die 9 and the forging lower die 11, the pressing block 8 is used for pressing and fixing the forging upper die 9 and the forging lower die 11, and the installation sequence of the wedge 10 is superior to that of the pressing block 8.
Forge the integral type hasp 33 that mould 9's four corners was equipped with vertical downwardly extending, the hasp is whole to be the rectangle structure, and the orientation of hasp forge the corner play of mould 9 inboard and be equipped with the chamfer, forge the four corners department of lower mould 11 be equipped with forge the anastomotic hasp groove 39 of mould 9 four corners hasp on the forging.
A plurality of upper forging die cavities 36 which have the shapes of forgings and are arranged at equal intervals are arranged at the center of the bottom end of the upper forging die 9, upper die flash groove bridge openings 35 which are distributed around the peripheries of the plurality of upper forging die cavities 36 and are concave inwards are arranged on the upper forging die 9, and upper die flash groove bin portions 34 which are concave inwards are arranged on the peripheries of the upper die flash groove bridge openings 35 on the upper forging die 9;
a plurality of forging lower die cavities 42 which have the shapes of forgings and are arranged at equal intervals are arranged at the center of the top end of the forging lower die 11, lower die flash groove bridge openings 38 which are distributed around the peripheries of the plurality of forging lower die cavities 42 and are recessed inwards are arranged on the forging lower die 11, and lower die flash groove bin portions 37 which are recessed inwards are arranged on the peripheries of the lower die flash groove bridge openings 38 on the forging lower die 11;
the plurality of die-shaped cavities are arranged on the central axis of the upper forging die 9 and the lower forging die 11 at equal intervals, and are matched with each other to position blanks.
The upper punching die of the punching station consists of an upper punching die base plate 2, a punching die punch 3 and a punching die pull plate 4, the upper punching die is fixedly connected with a plurality of punching die slide rails 29 on the upper die frame 1 in a positioning manner through the upper punching die base plate 2, and the punching die pull plate 4 elastically slides upwards along the punching die punch 3;
the punching lower die is composed of a punching die lower backing plate 6, a punching die pad block 7 and a punching die knife edge 5, the punching lower die is fixedly connected with a plurality of punching die slide rails 29 on a lower die frame 12 in a positioning mode through the punching die lower backing plate 6, the bottom end of the punching die lower backing plate 6 is lifted through at least two punching die pad blocks 7 to facilitate punching and blanking, a punching positioning cavity matched with the forged piece with the flash and without punching processed by the finish forging station is arranged at the center of the upper surface of the punching die knife edge 5, and the punching die punch 3 is continuously lowered in the punching positioning cavity of the punching die knife edge 5;
the upper die frame 1 descends and is connected with the punching upper die to punch the punching lower die, the punching upper die is matched with a punching die knife edge 5 of the punching lower die through the punching die pull plate 4 to compress a forged piece with flash and without punching, and the punching die punch 3 continuously descends and punches the position of the forged piece to be punched.
The trimming upper die of the trimming station consists of a trimming die upper die base plate 17, a trimming die punch 16 and a trimming die stripper plate 15, the trimming upper die is fixedly connected with a plurality of trimming die slide rails 21 on the upper die frame 1 through the trimming die upper die base plate 17, and the trimming die stripper plate 15 elastically slides upwards along the trimming die punch 16;
the lower trimming die of the trimming station consists of a lower trimming die base plate 13 and a trimming die knife edge 14, the lower trimming die is fixedly connected with a plurality of lower trimming die slide rails 25 on the lower die frame 12 in a positioning manner through the lower trimming die base plate 13, and the center of the upper surface of the trimming die knife edge 14 is provided with a trimming positioning cavity matched with the forged piece with the flash processed by the punching station;
the upper die frame 1 descends and carries the trimming upper die to punch the trimming lower die, the trimming upper die compresses the forged piece with the flash through the trimming die pull plate and the trimming die knife edge 14, and the trimming die punch 16 descends continuously to punch and shear the redundant flash of the forged piece with the flash.
When installing the die, the upper die and the lower die of the main die frame 1 are installed on the press, then the upper die and the lower die of the forging die 2 are installed in the middle of the main die frame 1, and finally the upper die and the lower die of the punching die 3 and the trimming die 4 are installed on two sides of the main die frame 1.
After the die is installed, a blank is firstly placed into a forging die 2 for forging according to a machining sequence, a forged piece formed in the forging die 2 through stamping is placed into a punching die 3 for punching, a second blank is placed into the forging die 2, the forging die 2 and the punching die 3 can be simultaneously driven to be machined when the main die frame 1 is punched again, a forged piece machined through the punching die 3 is placed into a trimming die 4 for trimming through a third portion, the steps are repeated, the forging die 2, the punching die 3 and the trimming die 4 can be simultaneously driven to be synchronously machined through three procedures when the main die frame 1 is punched again, and machining efficiency is improved.
After the total die carrier is installed, need install forging die, punching die and cut off die in proper order:
wherein, when forging the mould, need to install forging die 11 in the forging die backing plate 28 on the die carrier 12, later correct the position that forging die 11 is on forging die backing plate 28, put into a plurality of briquetting grooves 27 that are in the front and back sides of forging die backing plate 28 first a plurality of voussoirs 10, through the front and back sides voussoirs 10 laminating forging die 11, make forging die 11 can be through the front and back sides voussoirs 10 along the front and back central axis of forging die backing plate 28 on the side-to-side, later place a plurality of briquetting 8 in the briquetting groove 27 of the left and right sides of forging die backing plate 28, until a plurality of briquetting 8 laminating forging die 11 left and right sides, so as to correct the left and right position that forging die 11 is on forging die backing plate 28, finally fix voussoirs 10 and briquetting 8 in proper order, so as to restrict forging die 11 to be in the central point on forging die backing plate 28, and the forging upper die 9 is arranged at the center of the forging die base plate 28 on the upper die frame 1 according to the steps.
In addition, the wedge 10 is composed of a lower embedded part and an upper clamping part, and the concrete steps of the wedge 10 for limiting the forward and backward movement of the forging lower die 11 are as follows:
100, firstly, arranging transverse die sliding grooves for horizontally clamping a wedge block 10 at the front and rear ends of an upper forging die 9 and a lower forging die 11 of a forging die, and arranging die pressing grooves for fixing a pressing block 8 at the left and right ends of the upper forging die 9 and the lower forging die 11;
step 200, when installing the wedge blocks 10, the lower embedded parts need to be placed in the pressing block grooves 27 on the front and rear sides of the forging die backing plate 28, at this time, the lower parts of the wedge blocks 10 limit the forging lower die 11 to be positioned on the front and rear central axes of the forging die backing plate 28, and the forging lower die 11 can slide along the central axis of the forging die backing plate 28 through the limiting action of the lower parts of the wedge blocks 10;
step 300, after the forging lower die 11 is located on the forging die backing plate 28 and fixedly connected with the pressing block groove 27 by using the plurality of pressing blocks 8, the upper part of the wedge 10 can be inserted into the die pressing transverse grooves on the front and rear sides of the forging lower die 11, then the upper part of the wedge 10 and the wedge 10 are inserted into the lower part of the wedge 10 inside the punching die edge 5, finally, the fixing bolts are sequentially inserted into the holes on the upper part of the wedge 10 and the lower part of the wedge 10 and screwed into the screw holes at the bottom end of the pressing block groove 27, so that the upper part of the wedge 10 and the lower part of the wedge 10 are fixed by the fixing bolts, at this time, the upper part of the wedge 10 is pressed into the die pressing transverse grooves on the front and rear sides of the forging lower die 11, and the forging lower die 11 is jointly.
The wedge blocks 10 and the pressing blocks 8 are installed through the pressing block grooves 27 which are symmetrically distributed on the transverse and longitudinal central axes on the main die frame, the forging die is located at the front and rear positions on the main die frame through the wedge blocks 10, the left and right positions of the forging die on the main die frame are adjusted through the pressing blocks 8, the relative positions of the upper die and the lower die of the die are quickly located and fixed, and the matching accuracy of the upper die and the lower die of the forging die after installation is guaranteed.
When the punching die is installed, the lower punching die base plate 6 needs to be positioned and installed on the left side of the lower die frame 12 through the two punching die pad blocks 7 and the two punching die slide rails 29 at the bottom end of the lower punching die base plate, the punching die knife edge 5 needs to be positioned and installed at the top end of the punching die pad blocks 7, then the upper punching die base plate 2 is positioned and installed on the left side of the upper die frame 1 through the two punching die slide rails 29, the punching die punch 3 is positioned and installed at the bottom end of the upper punching die base plate 2, and when the upper die frame 1 and the lower die frame 12 are combined, the punching die punch 3 and the punching die pull plate 4 are matched to punch a forge piece.
And in the process of combining and stamping the upper forging die 9 and the lower forging die 11, the upper forging die 9 is matched with the lock catch grooves 39 arranged at the four corners of the lower forging die 11 through the integrated lock catches 33 arranged at the four corners of the upper forging die 9, and the upper forging die 9 and the lower forging die 11 are guided to be fully butted and matched until the upper forging die cavity 36 and the upper die flash groove bridge opening 35 inside the upper forging die 9 are contacted with a blank placed in the lower forging die 11, and in the process of continuously descending the upper forging die 9, the upper forging die cavity 36, the upper die flash groove bridge opening 35 and the upper die flash groove bin portion 34 are respectively matched with the lower forging die cavity 42, the lower die flash groove bridge opening 38 and the lower die flash groove bin portion 37, so that the blank is driven to form a flash forging piece with a corresponding composite shape under the stamping effect.
When the trimming die is installed, the trimming die lower die base plate 13 needs to be positioned and installed on the right side of the lower die base 12 through the two trimming die stripper plates 15, the trimming die cutting edge 14 needs to be positioned and installed on the trimming die lower die base plate 13, then the trimming die upper die base plate 17 is positioned and installed on the right side of the forging upper die 9 through the two upper trimming die slide rails 21, the trimming die punch 16 is positioned and installed at the bottom end of the trimming die upper die base plate 17, the trimming die stripper plates 15 which elastically slide up and down along the trimming die punch 16 are installed on the trimming die punch 16, when the upper die base 1 and the lower die base 12 are combined, the trimming die punch 16 and the trimming die stripper plates 15 move towards the trimming die cutting edge 14 until the trimming die stripper plates 15 are in press fit with the periphery of a forging piece needing trimming, and then the trimming die punch 16 continuously descends to cooperate with the trimming die cutting edge 14 to remove redundant flash of the forging piece.
The processing process of the multiple blanks comprises the following steps:
s100, before forming, firstly putting an electric heating pipe into heating holes of an upper die, a lower die and an upper die frame 12, heating the dies and the die frames until the dies and the die frames are heated to a preset temperature, then heating a rod-shaped aluminum alloy blank in a heating furnace to a preset temperature, and clamping and putting the blank into a preset position of a forging die;
the blank is located on a plurality of die cavities of forging lower die 11 this moment, and the structure that a plurality of die cavities inwards cave in guides the blank to be located directly over a plurality of die cavities, heats main die carrier and forging mould through heating device, thereby prevents that the blank that is in the austenite state from leading to unable formation corresponding shape because of rapid cooling in stamping forming's in-process.
S200, starting a press, closing a forging upper die and a forging lower die under the action of the press, forging and pressing the blank in the die cavity, and performing regular forming flow on the blank according to the shape of the die cavity to finally form a long joint blank with flash and without punching;
when the upper die frame 1 and the upper forging die 9 move downwards, the blank cavity of the upper forging die 9 is matched with the blank cavity of the lower forging die 11 to extrude a blank, so that the heated blank which is austenite flows regularly according to the shape of the blank cavity under the action of stamping, part of the blank is matched with the die cavity to form a forge piece, and the rest of the blank flows to the flash tank bin part along the flash tank bridge openings in the upper forging die 9 and the lower forging die 11, and finally a plurality of forged blank with flash is formed under the combined action of the two die cavities.
S300, placing the forged piece with the flash and without the punched hole generated in the first step into a punching station to perform second step punching, and repeating the first step forging process, so that after the main die completes punching, a punched long joint blank with the flash is formed in the punching station, and a punched long joint blank with the flash and without the punched hole is formed in the finish forging station.
When the long joint blank with the flash and without the punched hole processed at the finish forging station in the step S200 is taken out and put into the punching station, a second heating blank is put into the finish forging station, so that the finish forging station and the punching station can be simultaneously processed when the press is connected with the main die frame for punching, and thus a long joint blank with the flash and without the punched hole and a long joint blank with the flash can be obtained after the step is finished.
S400, placing the punched long joint blank with the flange generated in the first step into a trimming station to perform third step trimming, repeatedly starting the second step forging procedure to place the long joint blank with the flange and without the punched hole formed in the final forging station into a punching station to perform second step punching, repeatedly starting the first step forging procedure, generating a plurality of forged finished products in the trimming station after the main die completes the punching, and sequentially operating the steps to continuously and repeatedly process the three procedures.
When the long joint blank with the flash processed at the punching station in the step S300 is taken out and placed into the trimming station, the long joint blank with the flash and without punching processed at the finish forging station in the step S300 needs to be taken out and placed into the punching station, and the third heating blank is placed into the finish forging station, so that the finish forging station, the punching station and the trimming station can be simultaneously processed when the press is connected with the main die frame for punching, and thus, after the step is finished, one long joint blank with the flash and without punching, one long joint blank with the flash and a plurality of forged piece finished products can be obtained, and the plurality of forged piece finished products can fall from the blanking slot 26 on the lower die frame 12, so that a container can be placed in advance for collection.
According to the invention, the forging die, the punching die and the trimming die are arranged in one device, so that the three processes of forging, punching and trimming which are originally completed by three devices independently can be completed by only one device, the integration level of the device is improved, and the space occupied by the device is effectively saved;
and the main die frame can synchronously complete three processes with three dies by single stamping, thereby greatly improving the production efficiency, reducing the energy consumption of equipment and improving the economic benefit.
In addition, the slide rails and the positioning grooves on the die frame are arranged to be detachable, and a bending die, a upsetting die and a flat beating die can be additionally installed according to requirements, so that the die device integrating bending, upsetting, flat beating, forging, punching and trimming multi-station integration and combining a die and multiple dies is realized, and the application range of the device is widened.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. A one-die multi-part and multi-station forging method of a long joint blank for textile machinery is characterized by comprising the following steps: continuously transferring a plurality of blanks among a plurality of processing stations to finish synchronous continuous processing of the blanks among the stations; wherein,
a plurality of processing stations are arranged in the master die set and used for providing blank final forging, forge piece punching and forge piece trimming, and the plurality of processing stations comprise a final forging station arranged in a main punching area in the middle of the master die set according to the required punching force, and punching stations and trimming stations positioned in secondary punching areas on two sides of the master die set;
the finish forging station is used for stamping and forging the blank into a set shape of the inner cavity of the die, the punching station is used for punching at a corresponding position on a forged workpiece, the trimming station is used for trimming the redundant parts of the punched forged workpiece, and the total die frame synchronously and continuously carries with the finish forging station, the punching station and the trimming station for simultaneous continuous stamping processing.
2. The one-die multi-part and multi-station forging method for the long joint blank of the textile machine is characterized in that the main die frame comprises an upper die frame and a lower die frame which have the same structure, the upper die frame and the lower die frame are both provided with die frame hoisting holes for connecting a die frame press, the side surface of the upper die frame is provided with an upper die frame positioning groove for fixing on the die frame press, the side surface of the lower die frame is provided with a lower die frame positioning groove for fixing on the die frame press, and a plurality of positioning holes are arranged in the upper die frame positioning groove and the lower die frame positioning groove for connecting bolts for fixing;
the forging upper die is provided with an upper die hoisting hole for fixedly connecting a mounting bolt with the upper die frame, and the forging lower die is provided with a lower die hoisting hole for fixedly connecting the mounting bolt with the lower die frame;
go up being equipped with in the die carrier and being used for inserting the heat pipe and carrying out the last die carrier heated hole that heats, be equipped with in the die carrier down and be used for inserting the heat pipe and carry out the lower die carrier heated hole that heats, be equipped with in the forging of finish forging station and be used for inserting the heat pipe and carry out the forging mould heated hole that heats, be equipped with in the forging lower mould of finish forging station and be used for inserting the heat pipe and carry out the forging lower mould heated hole that heats, go up die carrier, lower die carrier, forge and insert the heating device formula synchronous heating as an organic whole of heat pipe in the mould.
3. The one-die multi-piece and multi-station forging method of the long joint blank for the textile machine, as claimed in claim, wherein: the center positions of the upper die frame and the lower die frame are provided with at least two through holes which are symmetrically distributed about the front central axis and the rear central axis of the upper die frame and the lower die frame, and the hoisting holes on the upper die frame and the lower die frame are internally provided with an upper die and a lower die which are respectively positioned at the finish forging station by screwing bolts;
the left side of the bottom end of the upper die frame is provided with at least two punching die slide rails which are symmetrically distributed about the front central axis and the rear central axis of the upper die frame, and the upper die frame and the lower die frame are respectively positioned and fixed on an upper die and a lower die of a punching station through the corresponding punching die slide rails;
the upper die frame and the lower die frame are respectively positioned and fix an upper die and a lower die of a trimming station through the at least two upper trimming die slide rails and the two lower trimming die slide rails;
and a blanking groove for a finished product forge piece to fall down is arranged between the two lower trimming die slide rails on the upper right side of the lower die frame.
4. The one-die multi-part and multi-station forging method of the long joint blank for the textile machine is characterized in that a plurality of briquetting grooves distributed around the periphery of a finish forging station die are formed in opposite surfaces of the upper die frame and the lower die frame, the upper die frame and the lower die frame are used for fixing a forging upper die and a forging lower die of the finish forging station respectively by installing briquetting blocks and wedge blocks in the plurality of briquetting grooves, a forging die base plate is arranged on the lower die frame between the plurality of briquetting grooves, and the forging die base plate is used for adjusting the height of the forging lower die by adjusting the height;
the left side and the right side of the forging upper die and the forging lower die are distributed with at least two clamping blocks which are symmetrically distributed about the front central axis and the rear central axis of the forging upper die and the forging lower die, and the front side and the rear side of the forging upper die and the forging lower die are distributed with at least two wedge blocks which are symmetrically distributed about the left central axis and the right central axis of the forging upper die and;
the wedge block is used for positioning the forging upper die and the forging lower die, the pressing block is used for pressing and fixing the forging upper die and the forging lower die, and the installation sequence of the wedge block is superior to that of the pressing block.
5. The one-die multi-part and multi-station forging method for the long joint blank of the textile machine as claimed in claim, wherein the four corners of the upper forging die are provided with vertically downward extending integrated latches, the latches are integrally rectangular, the corners of the latches facing the inner side of the upper forging die are chamfered, and the four corners of the lower forging die are provided with latch grooves matched with the four corners of the upper forging die.
6. The one-die multi-piece and multi-station forging method of the long joint blank for the textile machine, as claimed in claim, wherein: the forging upper die is provided with a plurality of upper die cavities which have the shapes of forgings and are arranged at equal intervals, the forging upper die is provided with upper die flash groove bridge openings which are distributed around the peripheries of the plurality of upper die cavities and are sunken inwards, and the periphery of the forging upper die, which is positioned at the upper die flash groove bridge openings, is provided with an upper die flash groove bin part which is sunken inwards;
the forging die is characterized in that a plurality of lower forging die cavities with forging shapes and arranged at equal intervals are arranged at the center of the top end of the lower forging die, the lower forging die is provided with a plurality of lower die flash groove bridge openings distributed on the periphery of the lower forging die cavities and arranged inwards, and the periphery of the lower die flash groove bridge openings on the lower forging die is provided with an inwards-sunken lower die flash groove bin portion.
7. The one-die multi-piece and multi-station forging method of the long joint blank for the textile machine, as claimed in claim, wherein: the plurality of die cavities are arranged on the central axis of the forging upper die and the central axis of the forging lower die at equal intervals, and the plurality of die cavities are matched with each other to position blanks.
8. The one-die multi-piece and multi-station forging method of the long joint blank for the textile machine, as claimed in claim, wherein: the punching upper die of the punching station consists of a punching die upper backing plate, a punching die punch and a punching die pull plate, the punching upper die is fixedly connected with a plurality of punching die slide rails on the upper die frame in a positioning manner through the punching die upper backing plate, and the punching die pull plate slides upwards along the punching die punch in an elastic manner;
the punching lower die is composed of a punching die lower backing plate, punching die pads and punching die edges, the punching lower die is fixedly connected with a plurality of punching die slide rails on a lower die frame in a positioning mode through the punching die lower backing plate, the bottom end of the punching die lower backing plate is lifted through at least two punching die pads to facilitate punching and blanking, a punching positioning cavity matched with the forged piece with the flash and without punching holes machined by the finish forging station is arranged in the center of the upper surface of each punching die edge, and the punching die punch head is continuously lowered in the punching positioning cavity on each punching die edge;
the upper die frame descends and the upper punching die punches the lower punching die, the upper punching die is matched with a punching die knife edge of the lower punching die through the punching die pulling plate to compress a forged piece with flash and without punching, and the punching die punch continuously descends and punches the position of the forged piece to be punched.
9. The one-die multi-piece and multi-station forging method of the long joint blank for the textile machine, as claimed in claim, wherein: the trimming upper die of the trimming station consists of a trimming die upper die base plate, a trimming die punch and a trimming die stripper plate, the trimming upper die is fixedly connected with a plurality of upper trimming die slide rails on the upper die frame in a positioning manner through the trimming die upper die base plate, and the trimming die stripper plate slides upwards elastically along the trimming die punch;
the lower trimming die of the trimming station consists of a lower trimming die base plate and a trimming die knife edge, the lower trimming die is fixedly connected with a plurality of lower trimming die slide rails on the lower die frame in a positioning manner through the lower trimming die base plate, and a trimming positioning cavity matched with the forged piece with the flash processed by the punching station is arranged at the center of the upper surface of the trimming die knife edge;
the upper die frame descends and is connected with the trimming upper die for punching the trimming lower die, the trimming upper die compresses the forged piece with the flash through the trimming die pull plate and the trimming die knife edge, and the trimming die punch continuously descends and punches and shears the redundant flash part of the forged piece with the flash.
10. A multi-die and multi-station forging method as claimed in any one of claims 1 to 9, wherein the plurality of blanks are processed by a process comprising:
s100, before forming, firstly, placing an electric heating pipe into heating holes of an upper die, a lower die and an upper die frame and a lower die frame, heating the dies and the die frames until the dies and the die frames are heated to a preset temperature, then heating a rod-shaped aluminum alloy blank in a heating furnace to a preset temperature, and clamping and placing the rod-shaped aluminum alloy blank into a preset position of a forging die;
s200, starting a press, closing a forging upper die and a forging lower die under the action of the press, forging and pressing the blank in the die cavity, and performing regular forming flow on the blank according to the shape of the die cavity to finally form a long joint blank with flash and without punching;
s300, placing the forged piece with the flash and without the punched hole generated in the first step into a punching station to perform second step punching, and simultaneously repeating the first step forging process, so that after the main die finishes punching, a punched long joint blank with the flash is formed in the punching station, and a punched long joint blank with the flash and without the punched hole is formed in a finish forging station;
s400, placing the punched long joint blank with the flange generated in the first step into a trimming station to perform third step trimming, repeatedly starting the second step forging procedure to place the long joint blank with the flange and without the punched hole formed in the final forging station into a punching station to perform second step punching, repeatedly starting the first step forging procedure, generating a plurality of forged finished products in the trimming station after the main die completes the punching, and sequentially operating the steps to continuously and repeatedly process the three procedures.
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| CN202110274369.1A CN112935164A (en) | 2021-03-15 | 2021-03-15 | One-die multi-part and multi-station forging method for long joint blank for textile machinery |
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| CN202110274369.1A CN112935164A (en) | 2021-03-15 | 2021-03-15 | One-die multi-part and multi-station forging method for long joint blank for textile machinery |
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| CN210848158U (en) * | 2019-08-22 | 2020-06-26 | 江阴燎原装备制造有限公司 | End plate splayed forging die |
| CN112122532A (en) * | 2020-09-07 | 2020-12-25 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Multi-station forging method for inner buckle type fire fighting connector |
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Application publication date: 20210611 |