CN109175186A - A kind of method that molding die and processing bolt are used in interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing - Google Patents
A kind of method that molding die and processing bolt are used in interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing Download PDFInfo
- Publication number
- CN109175186A CN109175186A CN201810956311.3A CN201810956311A CN109175186A CN 109175186 A CN109175186 A CN 109175186A CN 201810956311 A CN201810956311 A CN 201810956311A CN 109175186 A CN109175186 A CN 109175186A
- Authority
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- Prior art keywords
- matrix
- bolt
- tooth
- screw rod
- flower tooth
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Classifications
-
- 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
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
-
- 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
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
- B21K1/50—Trimming or shearing formed heads, e.g. working with dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing molding dies, including mold shell, the mold shell it is interior it is intracavitary be removably installed with colored tooth matrix and screw rod matrix, the shape of cavity shape and the interior hexagonal cylindrical headdress flower tooth bolt after the colored tooth matrix and the combination of screw rod matrix matches.The present invention also provides a kind of methods of above-mentioned interior hexagonal cylindrical headdress flower tooth bolt forming die processing bolt.In molding die of the invention, flower tooth matrix and screw rod matrix are not an entirety, and not only assembly and disassembly is convenient, but also when some matrix is impaired, is not necessarily to integral replacing mold, only needs to change impaired matrix, can greatly reduce production cost.In addition, various matrixs can be used in any combination in the present invention, using various forms of bolts can be processed after different matrix simple combinations, the use scope of molding die of the present invention can be expanded significantly.
Description
Technical field
The invention belongs to a kind of methods of bolt manufacture field more particularly to bolt forming die and processing bolt.
Background technique
Bolt in daily life and industrial production and manufacturing, be it is essential, bolt is also referred to as rice of industry.Bolt
Operation strategies include electronic product, engineering goods, digital product, power equipment, electromechanical engineering goods etc..
Interior hexagonal cylindrical headdress flower tooth bolt is as one of common bolt, and flower tooth processing method is generally in bolt hair
Cylindrical die roll on base using screw-rolling machine is processed on polished rod to be obtained spending tooth, but the size of colored tooth obtained by the above method is uneven,
The size and number of tooth is difficult to control accurately.In addition, also have the technique that flower tooth bolt is produced using flower tooth mold in the prior art,
But the flower tooth die bolt generally used in above-mentioned technique is difficult to be subjected to repeatedly to squeeze, and die life is short, and when more mold exchange needs
Integral replacing, production cost are higher.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, one kind is provided
Machining accuracy is high, being easy to disassembling, assembling and replacing, production cost, low interior hexagonal cylindrical headdress flower tooth bolt spends tooth processing molding die, and
The corresponding method provided using above-mentioned mold processing bolt.In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing molding die, including mold shell, the mold shell
It is interior it is intracavitary be removably installed with colored tooth matrix and screw rod matrix, the inner cavity shape after the colored tooth matrix and the combination of screw rod matrix
The shape of shape and the interior hexagonal cylindrical headdress flower tooth bolt matches.
In above-mentioned molding die, it is preferred that the mold shell includes upper shell and lower casing, the upper shell and lower outer
Shell is detachably connected by screw thread；The inner cavity internal diameter of the lower casing is less than the inner cavity internal diameter of the upper shell, the screw rod mould
The top half of piece is located at the interior intracavitary of the upper shell, and the lower half portion of the screw rod matrix is located at the inner cavity of the lower casing
It is interior.It, on the one hand can be by flower tooth matrix and screw rod die attachment in the inner cavity of mold shell, separately using the design of upper lower casing
On the one hand it is also convenient for replacing colored tooth matrix and/or screw rod matrix, dismount more convenient.
In above-mentioned molding die, it is preferred that the top of the upper shell is in back taper, and the colored tooth matrix passes through screw rod mould
Piece pressure is set in the back taper chamber.Flower tooth matrix can be fixed under the action of shell on screw rod matrix and back taper
In back taper chamber.
In above-mentioned molding die, it is preferred that the colored tooth matrix includes that wolfram steel flower tooth nest plate is spent with the wolfram steel is sheathed on
Steel flower tooth outside tooth nest plate covers loop；The screw rod matrix includes wolfram steel mold core and the steel that is sheathed on outside the wolfram steel mold core
Mold core ring.Wolfram steel flower tooth nest plate is externally provided with steel flower tooth set loop, wolfram steel mold core is externally provided with steel mandrel ring and can reduce stress,
Extend the service life of wolfram steel flower tooth nest plate and wolfram steel mold core.
In above-mentioned molding die, it is preferred that the lumen centers axis phase of the mold shell, flower tooth matrix and screw rod matrix
Mutually overlapping.Each lumen centers axis is overlapped can to guarantee that entire molding die stress is more balanced, and each component uses the longevity
It orders longer.
In above-mentioned molding die, it is preferred that the screw rod matrix is split type structure, by least two combination matrix edges
The axial direction of mold shell inner cavity is overlapped mutually.In processing bolt, the stress condition of screw rod matrix different parts is often deposited
Difference (axial direction usually along mold shell inner cavity has differences), breakage occurs in screw rod matrix, and to be frequently experienced in stress bigger
Position, when using monoblock type screw rod matrix, when a certain small position is impaired, that is, need integral replacing.Using split type screw rod
Matrix only needs to change an impaired combination matrix, is not necessarily to integral replacing, generate processing when some combination matrix is impaired
Cost is lower.
In above-mentioned molding die, it is preferred that the inner cavity of the screw rod matrix is in the outer of side adjacent with interior hexagonal cylindrical head
Along equipped with rounded corners.Using rounded corners, convenient for the transition of interior the hexagonal cylindrical head and screw rod coupling part of bolt.
In above-mentioned molding die, it is preferred that be additionally provided between the colored tooth matrix and screw rod matrix for giving bolt cylinder
Forming head portion reserves the transition matrix of even surface, and the transition matrix includes wolfram steel transition nest plate and is sheathed on the wolfram steel transition
Steel transition sleeve loop outside nest plate is (in order to reduce assembly working amount and production and processing cost, it is preferred that steel transition sleeve loop
It can be integral with steel flower tooth set loop).Preferably, the transition matrix also is located in the back taper chamber.Work as production
Bolt require bolt cylindrical head when being not all the colored flank of tooth, a mistake can be added in flower tooth mold and the intermediate of screw rod mold
Matrix is crossed, so that bolt cylindrical head reserves even surface.This is also further embodied using molding die in the present invention
Advantage, the present invention in use Split type die, can be combined with multiple small matrixs, be suitable for different bolts difference want
It asks, this is the unapproachable advantage of monoblock type molding die.
In above-mentioned molding die, it is preferred that the lumen centers axis of the transition matrix and the lumen centers of flower tooth matrix
Axis is overlapped, and the overall thickness of the transition matrix and flower tooth matrix is identical as the bolt cylindrical head height.
As a general technical idea, the present invention also provides a kind of above-mentioned interior hexagonal cylindrical headdress flower tooth bolt forming dies
The method of processing bolt, comprising the following steps:
(1) bolt blank with round table-like head and circular columns screw rod is processed by a mould one punching, the punching of two moulds two；Its
In, round table-like head upper end is big, and lower end is small；
(2) bolt blank obtained in step (1) is put into above-mentioned interior hexagonal cylindrical headdress flower tooth bolt forming die,
Under the hexagonal stamping rod effect of punch die, Hexagon hole is gone out on round table-like head, and is squeezed out colored dentation and obtained spending dentation bolt；
(3) processing threaded blank diameter on the flower dentation bolt obtained in step (2), the i.e. processing of completion bolt.
In the method for above-mentioned processing bolt, it is preferred that the round table-like head of bolt blank obtained in rate-determining steps (1)
Height is greater than the overall thickness of colored the tooth matrix and transition matrix.The round table-like head one of bolt blank obtained in step (1)
As its outer diameter be less than the internal diameter of flower tooth bolt, when three moulds three rush, round table-like head can longitudinal compression, to squeeze out colored tooth, therefore
It is required that the height on round table-like head is greater than the overall thickness of colored the tooth matrix and transition matrix.Certainly, if being used without transition
When the molding die of matrix adds formula bolt, the height on round table-like head is greater than the thickness of the colored tooth matrix.
Compared with the prior art, the advantages of the present invention are as follows:
1, in processing bolt, molding die stress is often uneven, and often certain places have already appeared breakage to molding die,
And it is certain local or intact, but it is also required to integral replacing at this time, higher cost.Interior hexagonal cylindrical headdress flower tooth of the invention
Flower tooth matrix and screw rod matrix in bolt flower tooth processing molding die are not an entirety (i.e. split-type design), not only group
Convenient disassembly is filled, and when some matrix is impaired, is not necessarily to integral replacing mold, only needs to change impaired matrix, it can
Greatly reduce production cost.
2, interior hexagonal cylindrical headdress flower tooth bolt of the invention flower tooth processing uses split-type design, various moulds with molding die
Piece can be used in any combination, and using various forms of bolts can be processed after different matrix simple combinations, can be expanded significantly
The use scope of molding die of the present invention, is more widely applied.
3, the flower tooth accuracy height that interior hexagonal cylindrical headdress flower tooth bolt of the invention flower tooth processing is processed with molding die,
Stability is good.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of mold shell in embodiment.
Fig. 2 is the fractionation structural representation of flower tooth matrix in embodiment.
Fig. 3 is the fractionation structural representation of screw rod matrix in embodiment.
Fig. 4 is the top view of flower tooth matrix in embodiment.
Fig. 5 is the fractionation structural representation of flower tooth matrix and transition matrix in embodiment.
Fig. 6 is the structural schematic diagram of the bolt with even surface in embodiment.
Marginal data:
1, mold shell；101, upper shell；102, lower casing；2, flower tooth matrix；201, wolfram steel flower tooth nest plate；202, steel
Flower tooth covers loop；3, screw rod matrix；31, matrix is combined；301, wolfram steel mold core；302, steel mandrel ring；303, rounded corners；4,
Bolt cylindrical head；41, even surface；5, transition matrix；501, wolfram steel transition nest plate；502, steel transition sleeve loop；6, it falls
Corner.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection scope.
Embodiment:
As shown in Figs 1-4, interior hexagonal cylindrical headdress flower tooth bolt flower tooth the processing molding die, including mold of the present embodiment
Shell 1, mold shell 1 it is interior it is intracavitary be removably installed with colored tooth matrix 2 and screw rod matrix 3, flower tooth matrix 2 and screw rod matrix
The shape of cavity shape and interior hexagonal cylindrical headdress flower tooth bolt after 3 combinations matches.
In the present embodiment, for the ease of the processing of screw end chamfering, the bottom of 3 inner cavity of screw rod matrix is additionally provided with for adding
The corner portion 6 of work screw rod chamfering.Corner portion 6 is set, in punch process flower tooth, chamfer machining can be completed, it can be to a certain degree
The upper preparation process for shortening bolt is also avoided using the techniques such as cutting processing chamfering.
In the present embodiment, the processing method of flower tooth matrix 2 can be divided into integral type or split type.When processing flower tooth matrix 2,
Prepare molding using die methods (technique is unlimited, such as powder metallurgy).Integral type processes the mold core with flower flank of tooth inner cavity,
The mold core length can with the length of multiple colored tooth matrixs 2 and, multiple colored tooth matrixs 2 can be obtained in cutting after being processed and formed at one time.
It is split type, i.e., it is prepared using the mold individually to match with flower 2 shape of tooth matrix, a colored tooth mould is once only prepared
Piece 2.
In the present embodiment, mold shell 1 includes upper shell 101 and lower casing 102, and upper shell 101 passes through with lower casing 102
Screw thread is detachably connected；The inner cavity internal diameter of lower casing 102 is less than the inner cavity internal diameter of upper shell 101, the top half of screw rod matrix 3
Intracavitary in upper shell 101, the lower half portion of screw rod matrix 3 is located at the interior intracavitary of lower casing 102；Upper shell 101 it is upper
Portion is in back taper, and flower tooth matrix 2 is set in back taper chamber by the pressure of screw rod matrix 3.
In the present embodiment, flower tooth matrix 2 includes the steel that wolfram steel is spent tooth nest plate 201 and is sheathed on outside wolfram steel flower tooth nest plate 201
Matter flower tooth covers loop 202；Screw rod matrix 3 includes wolfram steel mold core 301 and the steel mandrel ring 302 being sheathed on outside wolfram steel mold core 301.
In the present embodiment, the lumen centers axis of mold shell 1, flower tooth matrix 2 and screw rod matrix 3 is overlapped.
In the present embodiment, screw rod matrix 3 is split type structure, by least two combinations matrix 31 (2 in such as Fig. 3)
Axial direction along 1 inner cavity of mold shell is overlapped mutually.At this point, the top half of lowest level combination matrix 31 is located at upper shell
101 it is interior intracavitary, lowest level combination matrix 31 lower half portion be located at the interior intracavitary of lower casing 102.Certainly, it is needing to process it
When the bolt of his form, it need to only increase and decrease combination matrix 31.
In the present embodiment, the inner cavity of screw rod matrix 3 is equipped with rounded corners in the outer of side adjacent with interior hexagonal cylindrical head
303。
As shown in figure 5, in the present embodiment, when needing to process bolt as shown in FIG. 6, flower tooth matrix 2 and screw rod matrix 3
Between be additionally provided with transition matrix 5 for reserving even surface 41 to bolt cylindrical head 4, transition matrix 5 includes wolfram steel mistake
(preferred, the steel transition sleeve loop of steel transition sleeve loop 502 for crossing nest plate 501 and being sheathed on outside wolfram steel transition nest plate 501
502 can be integral with steel flower tooth set loop 202).In the present embodiment, transition matrix 5 also is located in back taper chamber.
In the present embodiment, the lumen centers axis and the lumen centers axis of flower tooth matrix 2 of transition matrix 5 are overlapped,
The overall thickness of transition matrix 5 and flower tooth matrix 2 is identical as 4 height of bolt cylindrical head.
The present embodiment also provides a kind of method using above-mentioned interior hexagonal cylindrical headdress flower tooth bolt forming die processing bolt,
The following steps are included:
(1) bolt blank with round table-like head and circular columns screw rod is processed by a mould one punching, the punching of two moulds two；Its
In, round table-like head upper end is big, and lower end is small, and the height on round table-like head is greater than the total thickness of flower tooth matrix 2 and transition matrix 5
Degree, appearance are as shown in Figure 2；
(2) bolt blank obtained in step (1) is put into above-mentioned interior hexagonal cylindrical headdress flower tooth bolt forming die,
Under the hexagonal stamping rod effect of punch die, Hexagon hole is gone out on round table-like head, and is squeezed out colored dentation and obtained spending dentation bolt；
(3) processing threaded blank diameter on the flower dentation bolt obtained in step (2), the i.e. processing of completion bolt.
Claims (10)
1. a kind of interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing molding die, including mold shell (1), which is characterized in that
The interior of the mold shell (1) intracavitary is removably installed with colored tooth matrix (2) and screw rod matrix (3), the colored tooth matrix (2)
Match with the shape of cavity shape and the interior hexagonal cylindrical headdress flower tooth bolt after screw rod matrix (3) combination.
2. molding die according to claim 1, which is characterized in that the mold shell (1) include upper shell (101) with
Lower casing (102), the upper shell (101) are detachably connected with lower casing (102) by screw thread；The lower casing (102)
Inner cavity internal diameter is less than the inner cavity internal diameter of the upper shell (101), and the top half of the screw rod matrix (3) is located at the upper shell
(101) interior intracavitary, the lower half portion of the screw rod matrix (3) is located at the interior intracavitary of the lower casing (102).
3. molding die according to claim 1, which is characterized in that the top of the upper shell (101) is in back taper, institute
Colored tooth matrix (2) is stated to be set in the back taper chamber by screw rod matrix (3) pressure.
4. molding die according to claim 1, which is characterized in that the colored tooth matrix (2) includes wolfram steel flower tooth nest plate
(201) and it is sheathed on steel flower tooth set loop (202) of wolfram steel flower tooth nest plate (201) outside.
5. molding die according to claim 1, which is characterized in that the screw rod matrix (3) includes wolfram steel mold core (301)
Be sheathed on the steel mandrel ring (302) of the wolfram steel mold core (301) outside.
6. molding die according to any one of claims 1-5, which is characterized in that the screw rod matrix (3) is fission
Formula structure, the axial direction by least two combinations matrix (31) along mold shell (1) inner cavity are overlapped mutually.
7. molding die according to any one of claims 1-5, which is characterized in that the colored tooth matrix (2) and screw rod
The transition matrix (5) for reserving even surface (41) to bolt cylindrical head (4), the mistake are additionally provided between matrix (3)
Matrix (5) is crossed to include wolfram steel transition nest plate (501) and be sheathed on the steel transition sleeve loop of the wolfram steel transition nest plate (501) outside
(502)。
8. molding die according to claim 7, which is characterized in that the transition matrix (5) and flower tooth matrix (2) it is total
Thickness is identical as bolt cylindrical head (4) height.
9. a kind of method using molding die processing bolt described in claim 7 or 8, which is characterized in that including following step
It is rapid:
S1: the bolt blank with round table-like head and circular columns screw rod is processed by a mould one punching, the punching of two moulds two；Wherein,
Round table-like head upper end is big, and lower end is small；
(2) bolt blank obtained in step (1) is put into above-mentioned interior hexagonal cylindrical headdress flower tooth bolt forming die, in punch die
Hexagonal stamping rod effect under, Hexagon hole is gone out on round table-like head, and squeeze out colored dentation obtain spend dentation bolt；
(3) processing threaded blank diameter on the flower dentation bolt obtained in step (2), the i.e. processing of completion bolt.
10. the method for processing bolt according to claim 9, which is characterized in that bolt hair obtained in rate-determining steps (1)
The height on the round table-like head of base is greater than the overall thickness of colored the tooth matrix (2) and transition matrix (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810956311.3A CN109175186A (en) | 2018-08-21 | 2018-08-21 | A kind of method that molding die and processing bolt are used in interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810956311.3A CN109175186A (en) | 2018-08-21 | 2018-08-21 | A kind of method that molding die and processing bolt are used in interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109175186A true CN109175186A (en) | 2019-01-11 |
Family
ID=64919393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810956311.3A Pending CN109175186A (en) | 2018-08-21 | 2018-08-21 | A kind of method that molding die and processing bolt are used in interior hexagonal cylindrical headdress flower tooth bolt flower tooth processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109175186A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848353A (en) * | 2019-04-02 | 2019-06-07 | 宏茂五金(昆山)有限公司 | Long size bolt head height one-time-shaped mould |
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