CN105290289A - Manufacturing die and manufacturing method for inner hexagonal socket - Google Patents

Manufacturing die and manufacturing method for inner hexagonal socket Download PDF

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Publication number
CN105290289A
CN105290289A CN201510709730.3A CN201510709730A CN105290289A CN 105290289 A CN105290289 A CN 105290289A CN 201510709730 A CN201510709730 A CN 201510709730A CN 105290289 A CN105290289 A CN 105290289A
Authority
CN
China
Prior art keywords
workpiece
mould
head
forms
bar portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510709730.3A
Other languages
Chinese (zh)
Inventor
张建国
黄卫忠
仲几奎
王明亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG MINGJIANG AUTO PARTS Co Ltd
Original Assignee
ZHEJIANG MINGJIANG AUTO PARTS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG MINGJIANG AUTO PARTS Co Ltd filed Critical ZHEJIANG MINGJIANG AUTO PARTS Co Ltd
Priority to CN201510709730.3A priority Critical patent/CN105290289A/en
Publication of CN105290289A publication Critical patent/CN105290289A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/02Dies or mountings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08Upsetting

Abstract

The invention provides a manufacturing die and a manufacturing method for an inner hexagonal socket, and relates to preparation of mechanical components. Cold heading one-time forming of the inner hexagonal socket is achieved, machining procedures are reduced, and the concentricity and accuracy are guaranteed. The manufacturing method for the inner hexagonal socket includes the following steps that raw materials are cut into a columnar workpiece with a preset length; a first die carries out forward extrusion on the columnar workpiece, and a columnar workpiece I is formed and provided with a rod part and a head part; a second die carries out backward extrusion on the head part of the workpiece I, a second workpiece II is formed, a step is formed on the end, far away from a rod part, of a head part of the workpiece II, and a conical structure is formed in the head part in a preset mode; a third die carries out forward extrusion on the workpiece II, a shaping guide stepped blind hole is primarily formed in a graph, the rod part is subjected to forward extrusion to form a shrinking rod, and a workpiece III is formed; a fourth die extrudes the workpiece III, a drawn hexagon is formed, and a workpiece IV is formed; and a fifth die extrudes the workpiece IV, a forward hexagon and a backward hexagon are formed, and a formed workpiece is obtained.

Description

Interior Hexagonal jacket mfg. moulding die and manufacture method thereof
Technical field
The present invention relates to mechanical part preparation field, refer to a kind of interior Hexagonal jacket mfg. moulding die and manufacture method thereof especially.
Background technology
Traditional interior Hexagonal jacket structure is simple, with low cost, but in use, this interior Hexagonal jacket is insecure, and use dumb, concentricity, Product Precision do not reach requirement yet yet.
In order to manufacture high accuracy, constitutionally stable interior Hexagonal jacket, the manufacturing process of the interior Hexagonal jacket that prior art provides is machining, the work in-process heart is produced, and its technological process is: the raw material cut are delivered to machining center and carry out turning, the processing of milling instrument, finally carry out the packing of product.But this machining manufacture method there are the following problems: machining equipment is expensive; Working (machining) efficiency is low; Concentricity cannot ensure; Product Precision does not reach requirement, and owing to adopting instrument processing, can produce more waste material, therefore its metal streamline is also destroyed, and product fatigue strength is low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of interior Hexagonal jacket mfg. moulding die and manufacture method thereof, overcomes the problem that existing interior Hexagonal jacket method of manufacturing technology process equipment is expensive, working (machining) efficiency is low and precision is not up to standard.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of interior Hexagonal jacket mfg. moulding die, for being had Hexagonal jacket in one-time formed interior six sides and outer six sides by cold-heading manufacture, described interior Hexagonal jacket mfg. moulding die comprises: the first mould be arranged in order, the second mould, the 3rd mould, the 4th mould and the 5th mould, wherein
Described first mould is used for forward extrusion first cylindrical workpiece, and form the workpiece one of cylindricality, the workpiece one of cylindricality has bar portion and head;
Described second mould is used for the head of backward extrusion workpiece one, forms workpiece two, and workpiece two forms step away from the one end in bar portion on head, at head predetermined formation cone-shaped structure;
Described 3rd mould is used for forward extrusion workpiece two, and figure begins to take shape shaping guiding step blind hole, and the forward extrusion of bar portion is formed reduces bar, forms workpiece three;
Described 4th mould, for extruding workpiece three, is formed and draws six sides, forms workpiece four;
Described 5th mould, for extruding workpiece four, forms positive hexagonal and reversed hexagonal, forms shaping workpiece.
Hexagonal jacket manufacture method in a kind of, described interior Hexagonal jacket has by one-time formed interior six sides of cold-heading and outer six sides, and the method comprises the following steps:
Step S100, raw material are cut into the cylindrical workpiece of predetermined length;
Step S101, the first mould forward extrusion cylindrical workpiece, form the workpiece one of cylindricality, the workpiece one of cylindricality has bar portion and head;
The head of step S102, the second mould backward extrusion workpiece one, forms workpiece two, and workpiece two forms step away from the one end in bar portion on head, at head predetermined formation cone-shaped structure;
Step S103, the 3rd mould forward extrusion workpiece two, figure begins to take shape shaping guiding step blind hole, and the forward extrusion of bar portion is formed reduces bar, forms workpiece three;
Step S104, the 4th mould extruding workpiece three, formed and draw six sides, form workpiece four;
Step S105, the 5th mould extruding workpiece four, form positive hexagonal and reversed hexagonal, form shaping workpiece.
Also comprise after described step S105 and surface-treated step is carried out to described shaping workpiece.
The diameter in the described bar portion formed in described step S101 is less than the diameter of described head.
The beneficial effect of technique scheme of the present invention is as follows:
In such scheme, by improving the process design method of mould, particularly to the improvement of the 4th mould and the 5th mould, make the cold-heading one-shot forming of interior Hexagonal jacket, thus decrease the program of instrument processing, ensure that concentricity, also improve the precision of interior Hexagonal jacket, avoid and produce more waste material, save human and material resources, financial resources etc.
Accompanying drawing explanation
Fig. 1 is the structural scheme of mechanism of interior Hexagonal jacket mfg. moulding die in the embodiment of the present invention;
Fig. 2 is the flow chart of interior Hexagonal jacket manufacture method in the embodiment of the present invention;
Fig. 3 is the shaping schematic diagram through step 100 in the embodiment of the present invention;
Fig. 4 is the shaping schematic diagram through step 101 in the embodiment of the present invention;
Fig. 5 is the shaping schematic diagram through step 102 in the embodiment of the present invention;
Fig. 6 is the shaping schematic diagram through step 103 in the embodiment of the present invention;
Fig. 7 is the shaping schematic diagram through step 104 in the embodiment of the present invention;
Fig. 8 is the shaping schematic diagram through step 105 in the embodiment of the present invention;
Fig. 9 is the structural representation of integrated interior Hexagonal jacket in the embodiment of the present invention.
Description of reference numerals:
100-cylindrical workpiece; 101-workpiece one; 102-workpiece two; 103-workpiece three;
104-workpiece four; 105-shaping workpiece;
1-bar portion; 2-head; 3-cone-shaped structure; 4-step; 5-bar portion;
6-shaping guiding step blind hole; 7-bar portion; 8-reduce bar; 9-draw six sides;
10-positive hexagonal; 11-reversed hexagonal.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to the problem that existing interior Hexagonal jacket method of manufacturing technology process equipment is expensive, working (machining) efficiency is low and precision is not up to standard, a kind of interior Hexagonal jacket mfg. moulding die and manufacture method thereof are provided.
As shown in Figure 1, the interior Hexagonal jacket mfg. moulding die of the embodiment of the present invention, for being had Hexagonal jacket in one-time formed interior six sides and outer six sides by cold-heading manufacture, described interior Hexagonal jacket mfg. moulding die comprises: the first mould be arranged in order, the second mould, the 3rd mould, the 4th mould and the 5th mould, wherein
Described first mould is used for forward extrusion first cylindrical workpiece, and form the workpiece one of cylindricality, the workpiece one of cylindricality has bar portion and head;
Described second mould is used for the head of backward extrusion workpiece one, forms workpiece two, and workpiece two forms step away from the one end in bar portion on head, at head predetermined formation cone-shaped structure;
Described 3rd mould is used for forward extrusion workpiece two, and figure begins to take shape shaping guiding step blind hole, and the forward extrusion of bar portion is formed reduces bar, forms workpiece three;
Described 4th mould, for extruding workpiece three, is formed and draws six sides, forms workpiece four;
Described 5th mould, for extruding workpiece four, forms positive hexagonal and reversed hexagonal, forms shaping workpiece.
As shown in Figure 2, the embodiment of the present invention also provides a kind of interior Hexagonal jacket manufacture method, and described interior Hexagonal jacket has by one-time formed interior six sides of cold-heading and outer six sides, and the method comprises the following steps:
Step S100, as shown in Figure 3, raw material are cut into the cylindrical workpiece 100 of predetermined length;
Raw material forward extrusion is cut into the cylindrical workpiece 100 of predetermined length, in the present embodiment, preferred cylindrical workpiece 100 is cylinder, and length is preset as 55.92mm.
Step S101, as shown in Figure 4, the first mould forward extrusion cylindrical workpiece 101, form the workpiece 1 of cylindricality, the workpiece 1 of cylindricality has bar portion 1 and head 2;
Wherein, the diameter in bar portion 1 is less than the diameter of head 2.
Step S102, as shown in Figure 5, the head of the second mould backward extrusion workpiece one, forms workpiece 2 102, and workpiece 2 102 forms step 4 away from the one end in bar portion 5 on head, forms cone-shaped structure 3 head is predetermined;
Step S103, as shown in Figure 6, the 3rd mould forward extrusion workpiece two, figure begins to take shape shaping guiding step blind hole 6, and bar portion 7 forward extrusion is formed reduces bar 8, forms workpiece 3 103;
Step S104, as shown in Figure 7, the 4th mould extruding workpiece three, is formed and draws six sides 9, form workpiece 4 104;
Step S105, as shown in Figure 8, the 5th mould extruding workpiece four, forms positive hexagonal 10 and reversed hexagonal 11, forms shaping workpiece 105.
In this step, finally in same die cavity, positive hexagonal 10 and the shaping of reversed hexagonal 11 1 step put in place, form shaping workpiece 105.
Further, also comprise after described step S105 surface-treated step is carried out to described shaping workpiece.
The final structure of interior Hexagonal jacket as shown in Figure 9, after having produced, also comprise outside factory transport, product inspection, outward appearance sorting, the process such as packaging and delivery.
The interior Hexagonal jacket mfg. moulding die that the embodiment of the present invention provides and manufacture method thereof, by cold-heading manufacture, there is Hexagonal jacket in one-time formed interior six sides and outer six sides, the problem such as need expensive processing charges when can solve Hexagonal jacket in existing machinery Cutter Body Processing with Machining Center and fatigue strength is low, the solution of the present invention working (machining) efficiency is high, and cost of goods manufactured is low; Produce without cutting, material is lossless; Slowly, product size precision is easy to ensure in forging mold wearing and tearing; Resultant metal streamline is continuous, and fatigue strength is high.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (4)

1. Hexagonal jacket mfg. moulding die in a kind, for being had Hexagonal jacket in one-time formed interior six sides and outer six sides by cold-heading manufacture, it is characterized in that, described interior Hexagonal jacket mfg. moulding die comprises: the first mould be arranged in order, the second mould, the 3rd mould, the 4th mould and the 5th mould, wherein
Described first mould is used for forward extrusion first cylindrical workpiece, and form the workpiece one of cylindricality, the workpiece one of cylindricality has bar portion and head;
Described second mould is used for the head of backward extrusion workpiece one, forms workpiece two, and workpiece two forms step away from the one end in bar portion on head, at head predetermined formation cone-shaped structure;
Described 3rd mould is used for forward extrusion workpiece two, and figure begins to take shape shaping guiding step blind hole, and the forward extrusion of bar portion is formed reduces bar, forms workpiece three;
Described 4th mould, for extruding workpiece three, is formed and draws six sides, forms workpiece four;
Described 5th mould, for extruding workpiece four, forms positive hexagonal and reversed hexagonal, forms shaping workpiece.
2. a Hexagonal jacket manufacture method in, described interior Hexagonal jacket has by one-time formed interior six sides of cold-heading and outer six sides, and it is characterized in that, the method comprises the following steps:
Step S100, raw material are cut into the cylindrical workpiece of predetermined length;
Step S101, the first mould forward extrusion cylindrical workpiece, form the workpiece one of cylindricality, the workpiece one of cylindricality has bar portion and head;
The head of step S102, the second mould backward extrusion workpiece one, forms workpiece two, and workpiece two forms step away from the one end in bar portion on head, at head predetermined formation cone-shaped structure;
Step S103, the 3rd mould forward extrusion workpiece two, figure begins to take shape shaping guiding step blind hole, and the forward extrusion of bar portion is formed reduces bar, forms workpiece three;
Step S104, the 4th mould extruding workpiece three, formed and draw six sides, form workpiece four;
Step S105, the 5th mould extruding workpiece four, form positive hexagonal and reversed hexagonal, form shaping workpiece.
3. interior Hexagonal jacket manufacture method according to claim 2, is characterized in that, also comprises and carry out surface-treated step to described shaping workpiece after described step S105.
4. interior Hexagonal jacket manufacture method according to claim 2, is characterized in that, the diameter in the described bar portion formed in described step S101 is less than the diameter of described head.
CN201510709730.3A 2015-10-28 2015-10-28 Manufacturing die and manufacturing method for inner hexagonal socket Pending CN105290289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510709730.3A CN105290289A (en) 2015-10-28 2015-10-28 Manufacturing die and manufacturing method for inner hexagonal socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510709730.3A CN105290289A (en) 2015-10-28 2015-10-28 Manufacturing die and manufacturing method for inner hexagonal socket

Publications (1)

Publication Number Publication Date
CN105290289A true CN105290289A (en) 2016-02-03

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CN201510709730.3A Pending CN105290289A (en) 2015-10-28 2015-10-28 Manufacturing die and manufacturing method for inner hexagonal socket

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108480543A (en) * 2018-02-09 2018-09-04 冷水江天宝实业有限公司 A kind of interior hexagonal cylindrical head is preforming for the second time to rush stick, mold and forming method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166373A (en) * 1977-12-27 1979-09-04 Braun Engineering Company Method of cold forming
JPH0446652A (en) * 1990-06-12 1992-02-17 Ngk Spark Plug Co Ltd Manufacture of main fitting
CN101648228A (en) * 2009-08-27 2010-02-17 浙江拓进五金工具有限公司 Multi-station cold extruding forming method of sleeve barrel
CN102152064A (en) * 2010-11-29 2011-08-17 宁波拓隆精密模具有限公司 Method for manufacturing high-intensity internal multi-tooth hexagonal-head flange-face bolt
CN102554581A (en) * 2012-03-13 2012-07-11 苏州新凌高强度紧固件有限公司 Manufacturing process of inner-hexagon cylindrical head shoulder screw
CN203109148U (en) * 2012-12-29 2013-08-07 宾科汽车紧固件(昆山)有限公司 Screw cold heading device
CN103909206A (en) * 2012-12-29 2014-07-09 宾科汽车紧固件(昆山)有限公司 Cold heading device for sleeve and cold heading process thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166373A (en) * 1977-12-27 1979-09-04 Braun Engineering Company Method of cold forming
JPH0446652A (en) * 1990-06-12 1992-02-17 Ngk Spark Plug Co Ltd Manufacture of main fitting
CN101648228A (en) * 2009-08-27 2010-02-17 浙江拓进五金工具有限公司 Multi-station cold extruding forming method of sleeve barrel
CN102152064A (en) * 2010-11-29 2011-08-17 宁波拓隆精密模具有限公司 Method for manufacturing high-intensity internal multi-tooth hexagonal-head flange-face bolt
CN102554581A (en) * 2012-03-13 2012-07-11 苏州新凌高强度紧固件有限公司 Manufacturing process of inner-hexagon cylindrical head shoulder screw
CN203109148U (en) * 2012-12-29 2013-08-07 宾科汽车紧固件(昆山)有限公司 Screw cold heading device
CN103909206A (en) * 2012-12-29 2014-07-09 宾科汽车紧固件(昆山)有限公司 Cold heading device for sleeve and cold heading process thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108480543A (en) * 2018-02-09 2018-09-04 冷水江天宝实业有限公司 A kind of interior hexagonal cylindrical head is preforming for the second time to rush stick, mold and forming method

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Application publication date: 20160203

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