CN106141061A - A kind of cold-heading molding technique for manufacturing positioning and guiding nut and cold-heading module - Google Patents
A kind of cold-heading molding technique for manufacturing positioning and guiding nut and cold-heading module Download PDFInfo
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- CN106141061A CN106141061A CN201610717459.2A CN201610717459A CN106141061A CN 106141061 A CN106141061 A CN 106141061A CN 201610717459 A CN201610717459 A CN 201610717459A CN 106141061 A CN106141061 A CN 106141061A
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- main mould
- mould
- die
- thimble
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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
-
- 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
-
- 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
-
- 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
- B21K1/00—Making machine elements
- B21K1/64—Making machine elements nuts
- B21K1/70—Making machine elements nuts of special shape, e.g. self-locking nuts, wing nuts
Abstract
The invention discloses a kind of cold-heading molding technique for manufacturing positioning and guiding nut and cold-heading module.The step of this cold-heading molding technique is: shear wire rod；Jumping-up extrudes；Anti-crowded macropore；Anti-crowded aperture；Perforation processing；Trimming and chamfer machining.This cold-heading module includes: for wire rod carrying out the first mould of jumping-up extrusion process, for the first semi-finished product carrying out instead squeezing the second mould of big hole machined, for the second semi-finished product carrying out instead squeezing the 3rd mould of little hole machined, for the 4th semi-finished product carrying out the 4th mould of perforation processing, for the 5th semi-finished product carry out the 5th mould of trimming and chamfer machining.The present invention carries out progressively cold-heading by five moulds to wire rod and processes, it is ensured that the metal streamline integrity of positioning and guiding nut structure, improves intensity and production efficiency, reduces production cost.
Description
Technical field
The present invention relates to Machining Technology field, particularly to a kind of cold-heading molding for manufacturing positioning and guiding nut
Technique and cold-heading module.
Background technology
In prior art, nut is usually and processes on CNC Digit Control Machine Tool, is processed by machining or milling pin process
Mold the structure of nut.But, the positioning and guiding nut interior streamline processed by CNC is imperfect, and mechanical performance cannot
Reaching standard, insufficient strength, manufacturing procedure is complicated, and CNC working (machining) efficiency is low, and the production cycle is long, and the waste material that milling pin falls is more, wave
Take material, increase production cost.And, for having the processing of the nut of perforation, CNC processing mode is more not easy to meet
Processing request and processing quality.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of cold-heading for manufacturing positioning and guiding nut
Moulding process and cold-heading module, it is ensured that the streamline of positioning and guiding nut structure is complete, improve the intensity of positioning and guiding nut
And production efficiency.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions: Yi Zhongyong
In the cold-heading molding technique of manufacture positioning and guiding nut, comprise the steps:
S0, is cut out making the wire rod of positioning and guiding nut；
S1, carries out jumping-up extrusion process to the wire rod in step S0 so that wire rod forms the T-shaped structure with head and bar portion,
Obtain the first semi-finished product；
First semi-finished product are carried out instead squeezing big hole machined, squeeze out the most vertically in the bar portion of the first semi-finished product by S2
One large diameter hole, obtains the second semi-finished product；
Second semi-finished product are carried out instead squeezing little hole machined, squeeze out small diameter bore, obtain the 3rd half above large diameter hole by S3
Finished product；
3rd semi-finished product are carried out perforation processing by S4, continue extruding along small diameter bore to head and punch, ultimately form one and run through
Head and the perforation in bar portion, remove the waste material squeezed out, obtain the 4th semi-finished product；
4th semi-finished product are carried out trimming and chamfer machining by S5 so that the head of the 4th semi-finished product forms hexagon, fixed to complete
The cold-heading course of processing of position spigot nut.
Present invention also offers a kind of cold-heading module for manufacturing positioning and guiding nut, this cold-heading module includes:
First mould, for carrying out jumping-up extrusion process to the wire rod making positioning and guiding nut so that wire rod is formed has head
The T-shaped structure in portion and bar portion, to obtain the first semi-finished product；
Second mould, for carrying out instead squeezing big hole machined to the first semi-finished product, edge from outside to inside in the bar portion of the first semi-finished product
Compress axially out a large diameter hole, to obtain the second semi-finished product；
3rd mould, for carrying out instead squeezing little hole machined to the second semi-finished product, squeezes out small diameter bore above large diameter hole,
To obtain the 3rd semi-finished product；
4th mould, for the 3rd semi-finished product carry out perforation processing, continues extruding along small diameter bore to head and punches, form one
The individual perforation running through head and bar portion, removes the waste material squeezed out, to obtain the 4th semi-finished product；
5th mould, for carrying out trimming and chamfer machining to the 4th semi-finished product so that the head of the 4th semi-finished product forms hexagonal
Shape, to complete the cold-heading course of processing of positioning and guiding nut；
5th mould includes that trim die and the main mould of trimming, the main mould of trimming include mould, the main mould of trimming in the main die sleeve of trimming, trimming
Ejector sleeve, trimming main mould thimble, trimming main mould ejector sleeve cushion block and trimming main mould ejector sleeve thimble, in trimming, mould is arranged at the main die sleeve of trimming
In, mould is provided with in trimming trimming die, trimming main mould ejector sleeve is set on trimming main mould thimble, and trimming main mould ejector sleeve is arranged at
On trimming main mould ejector sleeve cushion block, trimming main mould ejector sleeve thimble acts on trimming main mould ejector sleeve cushion block, is provided with trimming in trimming die
Die cavity, trimming main mould thimble and trimming main mould ejector sleeve stretch in the trimming die cavity of trimming die, and this trim die includes that trimming is rushed
Die sleeve and trimming module, this trimming module is arranged in trim die set.
Further, described trimming main mould thimble is arranged on trimming main mould thimble cushion block.
Further, it is provided with two trimming masters being symmetrical set between mould in described trimming main mould thimble cushion block and trimming
Mould pogo barrel, is provided with spring in each trimming main mould pogo barrel.
Further, this first mould includes the first punch die and the first main mould, and the first punch die includes the first punch die set and sets
Be placed in the first punch die core in the first punch die set, this first main mould includes the first main die sleeve, on first in mould, the first core insert,
First main mould thimble and the first main die, the first main die has the first die cavity, and on first, interior mould and the first core insert are arranged at
In first main die sleeve, the first main die is arranged at this Nei Monei on first, the first main mould thimble sequentially pass through the first core insert and
In on first after mould, stretch in the first die cavity of the first main die.
Further, this second mould includes the second punch die and the second main mould, and the second punch die includes the second punch die set and sets
Be placed in the second punch die core in the second punch die set, this second main mould include the second main die sleeve, mould in second, the second main mould thimble,
Second main mould thimble cushion block, the second main mould ejector sleeve, the second main mould ejector sleeve cushion block, the second main mould ejector sleeve thimble, the second main die and
Two the second main mould pogo barrels, the second main die has the second die cavity, and in second, mould and the second main mould thimble cushion block are arranged at
In second main die sleeve, two the second main mould pogo barrels be symmetricly set in second between mould and the second main mould thimble cushion block,
Being provided with spring in two main mould pogo barrels, the second main mould thimble is arranged on the second main mould thimble cushion block, the second main mould ejector sleeve pad
Block is arranged between two the second main mould pogo barrels, and the second main mould ejector sleeve is arranged on the second main mould ejector sleeve cushion block, and this
Two main mould ejector sleeves are set on the second main mould thimble, the second main mould ejector sleeve thimble pass the second main mould thimble cushion block, and this second
Main mould ejector sleeve thimble acts on the second main mould ejector sleeve cushion block, and the second main die is arranged at this bis-Nei Monei, the second main mould ejector sleeve
With the Second-Type intracavity that the second main mould thimble stretches into the second main die.
Further, the 3rd mould includes the 3rd punch die and the 3rd main mould, and the 3rd punch die includes the 3rd punch die set and sets
Be placed in the 3rd punch die core in the 3rd punch die set, the 3rd main mould include the 3rd main die sleeve, mould in the 3rd, the 3rd main mould thimble,
3rd main mould thimble cushion block, the 3rd main mould ejector sleeve, the 3rd main mould ejector sleeve cushion block, the 3rd main mould ejector sleeve thimble, the 3rd main die and
Two the 3rd main mould pogo barrels, the 3rd main die has the 3rd die cavity, and in the 3rd, mould and the 3rd main mould thimble cushion block are arranged at
In 3rd main die sleeve, two the 3rd main mould pogo barrels be symmetricly set in the 3rd between mould and the 3rd main mould thimble cushion block,
Being provided with spring in three main mould pogo barrels, the 3rd main mould thimble is arranged on the 3rd main mould thimble cushion block, the 3rd main mould ejector sleeve pad
Block is arranged between two the 3rd main mould pogo barrels, and the 3rd main mould ejector sleeve is arranged on the 3rd main mould ejector sleeve cushion block, and this
Three main mould ejector sleeves are set on the 3rd main mould thimble, and the 3rd main mould ejector sleeve thimble passes the 3rd main mould thimble cushion block, and the 3rd
Main mould ejector sleeve thimble acts on the 3rd main mould ejector sleeve cushion block, and the 3rd main die is arranged at the 3rd Nei Monei, the 3rd main mould ejector sleeve
With in the 3rd die cavity that the 3rd main mould thimble stretches into the 3rd main die.
Further, the 4th mould includes the 4th punch die and the 4th main mould, and the 4th punch die includes the 4th punch die set and sets
It is placed in the punch die stripping pipe in the 4th punch die set end, and the end of punch die stripping pipe stretches out in the end face of the 4th punch die set, punching
Being provided with de-material passage in mould stripping pipe, the 4th main mould includes the 4th main die sleeve, mould in the 4th, the 4th main mould thimble, the 4th main
Mould thimble cushion block, the 4th main mould ejector sleeve, the 4th main mould ejector sleeve cushion block, the 4th main mould ejector sleeve thimble, the 4th main die and two
Four main mould pogo barrels, the 4th main die has the 4th die cavity, and in the 4th, mould and the 4th main mould thimble cushion block are arranged at the 4th master
In die sleeve, two the 4th main mould pogo barrels be symmetricly set in the 4th between mould and the 4th main mould thimble cushion block, the 4th main mould
Being provided with spring in pogo barrel, the 4th main mould thimble is arranged on the 4th main mould thimble cushion block, and the 4th main mould ejector sleeve cushion block is arranged
Between two the 4th main mould pogo barrels, the 4th main mould ejector sleeve is arranged on the 4th main mould ejector sleeve cushion block, and the 4th main mould
Ejector sleeve is set on the 4th main mould thimble, and the 4th main mould ejector sleeve thimble passes the 4th main mould thimble cushion block, and the 4th main mould pushes away
Pipe thimble acts on the 4th main mould ejector sleeve cushion block, and the 4th main die is arranged at the 4th Nei Monei, the 4th main mould ejector sleeve and the 4th
Main mould thimble stretches in the 4th die cavity of the 4th main die.
The invention has the beneficial effects as follows: wire rod is entered according to the cold-heading molding technique of the present invention by the present invention by five moulds
Row progressively cold-heading processing, eventually forms the positioning and guiding nut of the head with perforation and hexagonal configuration, adds not in use by CNC
Work, it is ensured that the perforation of positioning and guiding nut interior and the metal streamline integrity of hexagonal head, improves intensity, machinery
Performance conformance with standard, with short production cycle, improve production efficiency, stock utilization is high, reduces production cost.
Accompanying drawing explanation
Fig. 1 is the moulding process flow chart of the present invention.
Fig. 2 is the structural representation of the cold-heading module of the present invention.
Fig. 3 is the structural representation of the first mould in the cold-heading module of the present invention.
Fig. 4 is the structural representation of the second mould in the cold-heading module of the present invention.
Fig. 5 is the structural representation of the 3rd mould in the cold-heading module of the present invention.
Fig. 6 is the structural representation of the 4th mould in the cold-heading module of the present invention.
Fig. 7 is the structural representation of the 5th mould in the cold-heading module of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
As it is shown in figure 1, a kind of cold-heading molding technique for manufacturing positioning and guiding nut, comprise the steps:
S0, is cut out making the wire rod of positioning and guiding nut；
S1, carries out jumping-up extrusion process to the wire rod in step S0 so that wire rod forms the T-shaped structure with head and bar portion,
Obtain the first semi-finished product；
First semi-finished product are carried out instead squeezing big hole machined, squeeze out the most vertically in the bar portion of the first semi-finished product by S2
One large diameter hole, obtains the second semi-finished product；
Second semi-finished product are carried out instead squeezing little hole machined, squeeze out small diameter bore, obtain the 3rd half above large diameter hole by S3
Finished product；
3rd semi-finished product are carried out perforation processing by S4, continue extruding along small diameter bore to head and punch, form one and run through head
With the perforation in bar portion, remove the waste material squeezed out, obtain the 4th semi-finished product；
4th semi-finished product are carried out trimming and chamfer machining by S5 so that the head of the 4th semi-finished product forms hexagon, fixed to complete
The cold-heading course of processing of position spigot nut.
As shown in Figures 2 to 7, the invention also discloses a kind of cold-heading module for manufacturing positioning and guiding nut, this is cold
Upsetting module includes:
First mould 1, for carrying out jumping-up extrusion process to the wire rod making positioning and guiding nut so that wire rod is formed has head
The T-shaped structure in portion and bar portion, to obtain the first semi-finished product；
Second mould 2, for carrying out instead squeezing big hole machined to the first semi-finished product, edge from outside to inside in the bar portion of the first semi-finished product
Compress axially out a large diameter hole, to obtain the second semi-finished product；
3rd mould 3, for carrying out instead squeezing little hole machined to the second semi-finished product, squeezes out minor diameter above large diameter hole
Hole, to obtain the 3rd semi-finished product；
4th mould 4, for the 3rd semi-finished product carry out perforation processing, continues extruding along small diameter bore to head and punches, formed
One perforation running through head and bar portion, removes the waste material squeezed out, to obtain the 4th semi-finished product；
5th mould 5, for carrying out trimming and chamfer machining to the 4th semi-finished product so that the head of the 4th semi-finished product forms hexagonal
Shape, to complete the cold-heading course of processing of positioning and guiding nut；
As it is shown in fig. 7, the 5th mould 5 includes that trim die 51 and the main mould of trimming 52, the main mould of trimming 52 include the main die sleeve of trimming
521, mould 522, trimming main mould ejector sleeve 523, trimming main mould thimble 524, trimming main mould ejector sleeve cushion block 525 and the main mould of trimming in trimming
Ejector sleeve thimble 526, during mould 522 is arranged at the main die sleeve of trimming 521 in trimming, is provided with trimming die 528, cuts in mould 522 in trimming
Limit main mould ejector sleeve 523 is set on trimming main mould thimble 524, and trimming main mould ejector sleeve 523 is arranged at trimming main mould ejector sleeve cushion block 525
On, trimming main mould ejector sleeve thimble 526 acts on trimming main mould ejector sleeve cushion block 525, is provided with trimming die cavity, cuts in trimming die 528
Limit main mould thimble 524 and trimming main mould ejector sleeve 523 stretch in the trimming die cavity of trimming die 528, and this trim die 51 includes cutting
Limit punch die set 511 and trimming module 512, this trimming module 512 is arranged in trim die set 511.Furtherly, described trimming
Main mould thimble 524 is arranged on trimming main mould thimble cushion block 527.Set between mould 522 in trimming main mould thimble cushion block 527 and trimming
There are two trimming being symmetrical set main mould pogo barrels 529, in each trimming main mould pogo barrel 529, are provided with spring 5291.
As it is shown on figure 3, this first mould includes the first punch die 11 and the first main mould 12, the first punch die 11 includes the first punch die
Set 111 and the first punch die core 112 being arranged in the first punch die set 111, this first main mould 12 include the first main die sleeve 121, the
Mould the 122, first core insert the 123, first main mould thimble 124 and the first main die 125 on one, the first main die 125 has the
One die cavity, on first, interior mould 122 and the first core insert 123 are arranged in the first main die sleeve 121, and the first main die 125 is arranged at
This on first in mould 122, the first main mould thimble 124 sequentially passes through on the first core insert 123 and first after mould 122, stretches into
In first die cavity of the first main die 125.
As shown in Figure 4, this second mould includes the second punch die 21 and the second main mould 22, and the second punch die includes the second punch die set
211 overlap the second punch die core 212 in 211 with being arranged at the second punch die, and this second main mould 22 includes the second main die sleeve 221, second
Interior mould 222, second main mould thimble 223, second main mould thimble cushion block 224, second main mould ejector sleeve the 225, second main mould ejector sleeve cushion block
226, the second main mould ejector sleeve thimble the 227, second main die 228 and two the second main mould pogo barrels 229, the second main die 228
Having the second die cavity, in second, mould 222 and the second main mould thimble cushion block 224 are arranged in the second main die sleeve 221, two second masters
Mould pogo barrel 229 be symmetricly set in second between mould 222 and the second main mould thimble cushion block 224, the second main mould pogo barrel
Being provided with the second main mould spring 2291 in 229, the second main mould thimble 223 is arranged on the second main mould thimble cushion block 224, the second main mould
Ejector sleeve cushion block 226 is arranged between two the second main mould pogo barrels 229, and the second main mould ejector sleeve 225 is arranged at the second main mould and pushes away
On pipe pad block 226, and this second main mould ejector sleeve 225 is set on the second main mould thimble 223, and the second main mould ejector sleeve thimble 227 is worn
Crossing the second main mould thimble cushion block 224, and this second main mould ejector sleeve thimble 227 acts on the second main mould ejector sleeve cushion block 226, second is main
Die 228 is arranged at this in second in mould 222, and the second main mould ejector sleeve 225 and the second main mould thimble 223 stretch into the second main die
The Second-Type intracavity of 228.
As it is shown in figure 5, the 3rd mould includes the 3rd punch die 31 and the 3rd main mould 32, the second punch die includes the second punch die set
311 overlap the second punch die core 312 in 311 with being arranged at the second punch die, and the 3rd main mould 32 includes the 3rd main die sleeve the 321, the 3rd
Interior mould the 322, the 3rd main mould thimble cushion block the 324, the 3rd main mould ejector sleeve cushion block of main mould ejector sleeve the 325, the 3rd of main mould thimble the 323, the 3rd
326, the 3rd main mould ejector sleeve thimble the 327, the 3rd main die 328 and two the 3rd main mould pogo barrels 329, the 3rd main die 328
Having the 3rd die cavity, in the 3rd, mould 322 and the 3rd main mould thimble cushion block 324 are arranged in the 3rd main die sleeve 321, two the 3rd masters
Mould pogo barrel 329 be symmetricly set in the 3rd between mould 322 and the 3rd main mould thimble cushion block 324, the 3rd main mould pogo barrel
Being provided with the 3rd main mould spring 3291 in 329, the 3rd main mould thimble 323 is arranged on the 3rd main mould thimble cushion block 324, the 3rd main mould
Ejector sleeve cushion block 326 is arranged between two the 3rd main mould pogo barrels 329, and the 3rd main mould ejector sleeve 325 is arranged at the 3rd main mould and pushes away
On pipe pad block 326, and the 3rd main mould ejector sleeve 325 is set on the 3rd main mould thimble 323, and the 3rd main mould ejector sleeve thimble 327 is worn
Crossing the 3rd main mould thimble cushion block 324, and the 3rd main mould ejector sleeve thimble 327 acts on the 3rd main mould ejector sleeve cushion block 326, the 3rd is main
Die 328 be arranged at the 3rd in mould 322, the 3rd main mould ejector sleeve 325 and the 3rd main mould thimble 323 stretch into the 3rd main die
In 3rd die cavity of 328.
As shown in Figure 6, the 4th mould includes the 4th punch die 41 and the 4th main mould 42, and the 4th punch die 41 includes the 4th punch die
Set 411 and be arranged at the punch die stripping pipe 412 that the 4th punch die overlaps in 411 ends, and the end of punch die stripping pipe 412 stretches out in the
The end face of four punch die sets 411, is provided with de-material passage 4121 in punch die stripping pipe 412, the 4th main mould 42 includes the 4th main die sleeve
421, mould the 422, the 4th main mould thimble cushion block the 424, the 4th main mould of main mould ejector sleeve the 425, the 4th of main mould thimble the 423, the 4th in the 4th
Ejector sleeve cushion block the 426, the 4th main mould ejector sleeve thimble the 427, the 4th main die 428 and two the 4th main mould pogo barrels 429, the 4th is main
Die 428 has the 4th die cavity, and in the 4th, mould 422 and the 4th main mould thimble cushion block 424 are arranged in the 4th main die sleeve 421, and two
Individual 4th main mould pogo barrel 429 be symmetricly set in the 4th between mould 422 and the 4th main mould thimble cushion block 424, the 4th main mould
Being provided with the 4th main mould spring 4291 in pogo barrel 429, the 4th main mould thimble 423 is arranged on the 4th main mould thimble cushion block 424,
4th main mould ejector sleeve cushion block 426 is arranged between two the 4th main mould pogo barrels 429, and the 4th main mould ejector sleeve 425 is arranged at
On four main mould ejector sleeve cushion blocks 426, and the 4th main mould ejector sleeve 425 is set on the 4th main mould thimble 423, the 4th main mould ejector sleeve top
Pin 427 is through the 4th main mould thimble cushion block 424, and the 4th main mould ejector sleeve thimble 427 acts on the 4th main mould ejector sleeve cushion block
426, the 4th main die 428 be arranged at the 4th in mould 422, the 4th main mould ejector sleeve 425 and the 4th main mould thimble 423 stretch into
In 4th die cavity of four main dies 428.
The lower end of first main die sleeve the 1, second main die sleeve the 2, the 3rd main die sleeve 4 of main die sleeve the 3, the 4th and the 5th main die sleeve 5 is divided
Lock after not being provided with main mould, and first main die sleeve the 1, second main die sleeve the 2, the 3rd main die sleeve the 3, the 4th main die sleeve 4 and the 5th main die sleeve 5
Inside further respectively have and be positioned at the main mould ejector sleeve thimble cushion block of the side of locking after main mould.
Five moulds are all contained on cold headers.During work, on the first main mould 12 that wire rod is placed in the first mould 1, first
First punch die 11 of mould 1 moves, and is headed into by wire rod in the first die cavity of the first main die 125, the first punch die core 112, first
Main die 125 and the first main mould thimble 124 coordinate, and complete the jumping-up extrusion process to wire rod so that wire rod is formed has head
With the T-shaped structure in bar portion, obtain the first semi-finished product；After first semi-finished product eject, the connecting gear on cold headers is by first half one-tenth
Product are transferred on the second mould 2, and the first semi-finished product are pressed into the of the second main die 228 by the second punch die 21 in the second mould 2
In two die cavities, under the squeezing action of the second main mould thimble 223, carry out the first semi-finished product instead squeezing big hole machined, the first half
Squeeze out a large diameter hole in the bar portion of finished product the most vertically, obtain the second semi-finished product, the second main mould ejector sleeve thimble
227 pushing tow second main mould ejector sleeve cushion block 226, the second main mould ejector sleeve 225 is ejected by the second main mould ejector sleeve cushion block 226, thus second
Second semi-finished product are ejected the second main mould 2 by main mould ejector sleeve 225；Second semi-finished product are transferred on the 3rd mould 3 by connecting gear,
Under the squeezing action of the 3rd main mould thimble 323, carry out the second semi-finished product instead squeezing little hole machined, extrude above large diameter hole
Going out small diameter bore, obtain the 3rd semi-finished product, the 3rd main mould ejector sleeve 325 is at the 3rd main mould ejector sleeve thimble 327 and the 3rd main mould ejector sleeve
Under the effect of cushion block 326, the 3rd semi-finished product are ejected the 3rd main mould 3；3rd semi-finished product are transferred to the 4th mould by connecting gear again
On tool 4, under the effect of the 4th main mould thimble 423, the 3rd semi-finished product are carried out perforation processing, continues to head along small diameter bore
Extruding is punched, and forms a perforation running through head and bar portion, washes out the waste material squeezed out, and waste material is from punch die stripping pipe 412
Deviating from de-material passage 4121, obtain the 4th semi-finished product, the 4th main mould ejector sleeve 425 is at the 4th main mould ejector sleeve thimble 427 and the 4th
Under the effect of main mould ejector sleeve cushion block 426, the 4th semi-finished product are ejected the 4th main mould 4；4th semi-finished product are transferred to by connecting gear
On 5th mould 5, the trimming module 512 in trim die 51 carries out trimming and chamfer machining to the 4th semi-finished product so that the 4th
The head of semi-finished product forms hexagon, obtains positioning and guiding nut blank part, and trimming main mould ejector sleeve 523 is by positioning and guiding nut hair
Blank ejects, and completes the cold-heading course of processing of positioning and guiding nut.
The present invention carries out progressively cold-heading according to the cold-heading molding technique of the present invention to wire rod by five moulds and processes, finally
Form the positioning and guiding nut of the head with perforation and hexagonal configuration, process not in use by CNC, it is ensured that positioning and guiding spiral shell
Perforation within Mu and the metal streamline integrity of hexagonal head, improve intensity, mechanical performance conformance with standard, produce week
Phase is short, improves production efficiency, and stock utilization is high, reduces production cost.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (8)
1. the cold-heading molding technique being used for manufacturing positioning and guiding nut, it is characterised in that comprise the steps:
S0, is cut out making the wire rod of positioning and guiding nut；
S1, carries out jumping-up extrusion process to the wire rod in step S0 so that wire rod forms the T-shaped structure with head and bar portion,
Obtain the first semi-finished product；
First semi-finished product are carried out instead squeezing big hole machined, squeeze out the most vertically in the bar portion of the first semi-finished product by S2
One large diameter hole, obtains the second semi-finished product；
Second semi-finished product are carried out instead squeezing little hole machined, squeeze out small diameter bore, obtain the 3rd half above large diameter hole by S3
Finished product；
3rd semi-finished product are carried out perforation processing by S4, continue extruding along small diameter bore to head and punch, ultimately form one and run through
Head and the perforation in bar portion, remove the waste material squeezed out, obtain the 4th semi-finished product；
4th semi-finished product are carried out trimming and chamfer machining by S5 so that the head of the 4th semi-finished product forms hexagon, fixed to complete
The cold-heading course of processing of position spigot nut.
2. the cold-heading module being used for manufacturing positioning and guiding nut, it is characterised in that this cold-heading module includes:
First mould, for carrying out jumping-up extrusion process to the wire rod making positioning and guiding nut so that wire rod is formed has head
The T-shaped structure in portion and bar portion, to obtain the first semi-finished product；
Second mould, for carrying out instead squeezing big hole machined to the first semi-finished product, edge from outside to inside in the bar portion of the first semi-finished product
Compress axially out a large diameter hole, to obtain the second semi-finished product；
3rd mould, for carrying out instead squeezing little hole machined to the second semi-finished product, squeezes out small diameter bore above large diameter hole,
To obtain the 3rd semi-finished product；
4th mould, for the 3rd semi-finished product carry out perforation processing, continues extruding along small diameter bore to head and punches, form one
The individual perforation running through head and bar portion, removes the waste material squeezed out, to obtain the 4th semi-finished product；
5th mould, for carrying out trimming and chamfer machining to the 4th semi-finished product so that the head of the 4th semi-finished product forms hexagonal
Shape, to complete the cold-heading course of processing of positioning and guiding nut；
5th mould includes that trim die and the main mould of trimming, the main mould of trimming include mould, the main mould of trimming in the main die sleeve of trimming, trimming
Ejector sleeve, trimming main mould thimble, trimming main mould ejector sleeve cushion block and trimming main mould ejector sleeve thimble, in trimming, mould is arranged at the main die sleeve of trimming
In, mould is provided with in trimming trimming die, trimming main mould ejector sleeve is set on trimming main mould thimble, and trimming main mould ejector sleeve is arranged at
On trimming main mould ejector sleeve cushion block, trimming main mould ejector sleeve thimble acts on trimming main mould ejector sleeve cushion block, is provided with trimming in trimming die
Die cavity, trimming main mould thimble and trimming main mould ejector sleeve stretch in the trimming die cavity of trimming die, and this trim die includes that trimming is rushed
Die sleeve and trimming module, this trimming module is arranged in trim die set.
A kind of cold-heading module for manufacturing positioning and guiding nut the most according to claim 2, it is characterised in that described in cut
Limit main mould thimble is arranged on trimming main mould thimble cushion block.
A kind of cold-heading module for manufacturing positioning and guiding nut the most according to claim 3, it is characterised in that described in cut
Two trimming being symmetrical set main mould pogo barrels, the main mould of each trimming it is provided with between mould in limit main mould thimble cushion block and trimming
Spring it is provided with in pogo barrel.
A kind of cold-heading module for manufacturing positioning and guiding nut the most according to claim 2, it is characterised in that this is first years old
Mould includes the first punch die and the first main mould, and the first punch die includes the first punch die set and the first punching being arranged in the first punch die set
Die, this first main mould includes the first main die sleeve, on first in mould, the first core insert, the first main mould thimble and the first main die,
First main die has the first die cavity, and on first, interior mould and the first core insert are arranged in the first main die sleeve, and the first main die sets
Being placed in this Nei Monei on first, the first main mould thimble sequentially passes through on the first core insert and first after mould, stretches into the first main mould
In first die cavity of core.
A kind of cold-heading module for manufacturing positioning and guiding nut the most according to claim 2, it is characterised in that this is second years old
Mould includes the second punch die and the second main mould, and the second punch die includes the second punch die set and the second punching being arranged in the second punch die set
Die, this second main mould includes the second main die sleeve, mould, the second main mould thimble, the second main mould thimble cushion block, the second main mould in second
Ejector sleeve, the second main mould ejector sleeve cushion block, the second main mould ejector sleeve thimble, the second main die and two the second main mould pogo barrels, second
Main die has the second die cavity, and in second, mould and the second main mould thimble cushion block are arranged in the second main die sleeve, two the second main moulds
Pogo barrel be symmetricly set in second between mould and the second main mould thimble cushion block, the second main mould pogo barrel is provided with spring,
Second main mould thimble is arranged on the second main mould thimble cushion block, and the second main mould ejector sleeve cushion block is arranged at two the second main mould spring housings
Between pipe, the second main mould ejector sleeve is arranged on the second main mould ejector sleeve cushion block, and this second main mould ejector sleeve is set in the second main mould top
On pin, the second main mould ejector sleeve thimble passes the second main mould thimble cushion block, and this second main mould ejector sleeve thimble acts on the second main mould
Ejector sleeve cushion block, the second main die is arranged at this bis-Nei Monei, the second main mould ejector sleeve and the second main mould thimble and stretches into the second main mould
The Second-Type intracavity of core.
A kind of cold-heading module for manufacturing positioning and guiding nut the most according to claim 2, it is characterised in that the 3rd
Mould includes that the 3rd punch die and the 3rd main mould, the 3rd punch die include the 3rd punch die set and the 3rd punching being arranged in the 3rd punch die set
Die, the 3rd main mould includes the 3rd main die sleeve, mould, the 3rd main mould thimble, the 3rd main mould thimble cushion block, the 3rd main mould in the 3rd
Ejector sleeve, the 3rd main mould ejector sleeve cushion block, the 3rd main mould ejector sleeve thimble, the 3rd main die and two the 3rd main mould pogo barrels, the 3rd
Main die has the 3rd die cavity, and in the 3rd, mould and the 3rd main mould thimble cushion block are arranged in the 3rd main die sleeve, two the 3rd main moulds
Pogo barrel be symmetricly set in the 3rd between mould and the 3rd main mould thimble cushion block, the 3rd main mould pogo barrel is provided with spring,
3rd main mould thimble is arranged on the 3rd main mould thimble cushion block, and the 3rd main mould ejector sleeve cushion block is arranged at two the 3rd main mould spring housings
Between pipe, the 3rd main mould ejector sleeve is arranged on the 3rd main mould ejector sleeve cushion block, and the 3rd main mould ejector sleeve is set in the 3rd main mould top
On pin, the 3rd main mould ejector sleeve thimble passes the 3rd main mould thimble cushion block, and the 3rd main mould ejector sleeve thimble acts on the 3rd main mould
Ejector sleeve cushion block, the 3rd main die is arranged at the 3rd Nei Monei, and the 3rd main mould ejector sleeve and the 3rd main mould thimble stretch into the 3rd main mould
In 3rd die cavity of core.
A kind of cold-heading module for manufacturing positioning and guiding nut the most according to claim 2, it is characterised in that the 4th
Mould includes that the 4th punch die and the 4th main mould, the 4th punch die include the 4th punch die set and be arranged at rushing in the 4th punch die set end
Mould stripping pipe, and the end of punch die stripping pipe stretches out in the end face of the 4th punch die set, is provided with de-material passage in punch die stripping pipe, should
4th main mould include the 4th main die sleeve, mould in the 4th, the 4th main mould thimble, the 4th main mould thimble cushion block, the 4th main mould ejector sleeve,
Four main mould ejector sleeve cushion blocks, the 4th main mould ejector sleeve thimble, the 4th main die and two the 4th main mould pogo barrels, the 4th main die tool
Having the 4th die cavity, in the 4th, mould and the 4th main mould thimble cushion block are arranged in the 4th main die sleeve, two the 4th main mould pogo barrels
In being symmetricly set in the 4th between mould and the 4th main mould thimble cushion block, the 4th main mould pogo barrel is provided with spring, the 4th main mould
Thimble is arranged on the 4th main mould thimble cushion block, and the 4th main mould ejector sleeve cushion block is arranged between two the 4th main mould pogo barrels,
4th main mould ejector sleeve is arranged on the 4th main mould ejector sleeve cushion block, and the 4th main mould ejector sleeve is set on the 4th main mould thimble, the
Four main mould ejector sleeve thimbles pass the 4th main mould thimble cushion block, and the 4th main mould ejector sleeve thimble acts on the 4th main mould ejector sleeve pad
Block, the 4th main die is arranged at the 4th Nei Monei, and the 4th main mould ejector sleeve and the 4th main mould thimble stretch into the of the 4th main die
In four die cavities.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717459.2A CN106141061A (en) | 2016-08-25 | 2016-08-25 | A kind of cold-heading molding technique for manufacturing positioning and guiding nut and cold-heading module |
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|---|---|---|---|
| CN201610717459.2A CN106141061A (en) | 2016-08-25 | 2016-08-25 | A kind of cold-heading molding technique for manufacturing positioning and guiding nut and cold-heading module |
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| CN201610717459.2A Pending CN106141061A (en) | 2016-08-25 | 2016-08-25 | A kind of cold-heading molding technique for manufacturing positioning and guiding nut and cold-heading module |
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| CN107584059A (en) * | 2017-08-30 | 2018-01-16 | 鹏驰五金制品（昆山）有限公司 | One kind equals quick-fried shell processing technology |
| CN108057839A (en) * | 2017-12-14 | 2018-05-22 | 苏州工业园区新凯精密五金有限公司 | It is a kind of for the cold-heading molding technique of automobile steering system casing and cold-heading module |
| CN108262437A (en) * | 2018-01-18 | 2018-07-10 | 苏州工业园区新凯精密五金有限公司 | It is a kind of for the cold-heading molding technique of the bolt with thin-walled washer and cold-heading module |
| CN108580769A (en) * | 2018-05-04 | 2018-09-28 | 广东世力科技有限公司 | A kind of cold-forge forming method of the small size part of the substrate containing polygon |
| CN109175919A (en) * | 2018-11-02 | 2019-01-11 | 思进智能成形装备股份有限公司 | A kind of cold-heading processing method of wing screw |
| CN110280704A (en) * | 2019-07-08 | 2019-09-27 | 苏州孚莱博精密金属科技有限公司 | It is a kind of for manufacturing the cold heading die group and cold heading technique of dampener sleeve |
| CN112207221A (en) * | 2020-09-14 | 2021-01-12 | 苏州工业园区君力精工有限公司 | New energy automobile battery pole cold heading forming process |
| CN112719189A (en) * | 2020-12-29 | 2021-04-30 | 苏州工业园区新凯精密五金有限公司 | Nut cold heading die and forming process |
| CN113020535A (en) * | 2021-03-19 | 2021-06-25 | 浙江纳特汽车标准件有限公司 | Cold heading forming module and cold heading forming method of rivet nut |
| CN113617924A (en) * | 2021-07-16 | 2021-11-09 | 卓越紧固系统（上海）有限公司 | Processing technology and cold heading die for 316Ti nut of high-temperature-resistant sensor |
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| CN107584059A (en) * | 2017-08-30 | 2018-01-16 | 鹏驰五金制品（昆山）有限公司 | One kind equals quick-fried shell processing technology |
| CN108057839B (en) * | 2017-12-14 | 2024-01-12 | 苏州新凯紧固系统有限公司 | Cold heading forming process and cold heading module for automobile steering system sleeve |
| CN108057839A (en) * | 2017-12-14 | 2018-05-22 | 苏州工业园区新凯精密五金有限公司 | It is a kind of for the cold-heading molding technique of automobile steering system casing and cold-heading module |
| CN108262437A (en) * | 2018-01-18 | 2018-07-10 | 苏州工业园区新凯精密五金有限公司 | It is a kind of for the cold-heading molding technique of the bolt with thin-walled washer and cold-heading module |
| CN108262437B (en) * | 2018-01-18 | 2024-03-29 | 苏州新凯紧固系统有限公司 | Cold heading forming process and cold heading module for bolt with thin-wall washer |
| CN108580769A (en) * | 2018-05-04 | 2018-09-28 | 广东世力科技有限公司 | A kind of cold-forge forming method of the small size part of the substrate containing polygon |
| CN109175919A (en) * | 2018-11-02 | 2019-01-11 | 思进智能成形装备股份有限公司 | A kind of cold-heading processing method of wing screw |
| CN110280704A (en) * | 2019-07-08 | 2019-09-27 | 苏州孚莱博精密金属科技有限公司 | It is a kind of for manufacturing the cold heading die group and cold heading technique of dampener sleeve |
| CN112207221A (en) * | 2020-09-14 | 2021-01-12 | 苏州工业园区君力精工有限公司 | New energy automobile battery pole cold heading forming process |
| CN112719189A (en) * | 2020-12-29 | 2021-04-30 | 苏州工业园区新凯精密五金有限公司 | Nut cold heading die and forming process |
| CN113020535B (en) * | 2021-03-19 | 2023-02-07 | 浙江纳特汽车标准件有限公司 | Cold heading forming module and cold heading forming method of rivet nut |
| CN113020535A (en) * | 2021-03-19 | 2021-06-25 | 浙江纳特汽车标准件有限公司 | Cold heading forming module and cold heading forming method of rivet nut |
| CN113617924A (en) * | 2021-07-16 | 2021-11-09 | 卓越紧固系统（上海）有限公司 | Processing technology and cold heading die for 316Ti nut of high-temperature-resistant sensor |
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Application publication date: 20161123 |