CN210412366U - Bolt forming die - Google Patents
Bolt forming die Download PDFInfo
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- CN210412366U CN210412366U CN201921296202.XU CN201921296202U CN210412366U CN 210412366 U CN210412366 U CN 210412366U CN 201921296202 U CN201921296202 U CN 201921296202U CN 210412366 U CN210412366 U CN 210412366U
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Abstract
The utility model discloses a bolt forming die, including the die casing, be provided with the die centre form that is used for fixing bolt shaping portion in the die casing, be provided with the shaping groove bellying that is used for processing the afterbody groove in the bolt shaping portion. Wherein, bolt shaping portion generally is provided with the bolt assorted cell body with needs processing, at the cold-heading in-process, the blank receives the punching press of external force in bolt shaping portion and is extruded into required bolt shape, and is provided with the shaping groove bellying in bolt shaping portion, when the blank is by the cold-heading, the material of the bottom of blank will be extruded and form the afterbody groove that matches with the shaping groove bellying in the bottom because the stopping of shaping groove bellying, the utility model provides a bolt forming die can one-step refining shaping bolt's body and afterbody groove, does not need secondary operation, and production efficiency is high to because the afterbody groove is formed by the cold-heading extrusion, whole process can not produce the piece, has saved raw and other materials, has reduced manufacturing cost.
Description
Technical Field
The utility model relates to a machinery processing technology field, more specifically say, relate to a bolt forming die.
Background
Bolts and screws are the most basic mechanical parts, and are widely used in various industries such as automobiles, industrial machines, and construction. Unlike welding and riveting, the largest feature of the bolt is that it can be simply detached even after fastening and can be reused by re-fastening.
The forming of the bolt can adopt cold heading plastic processing, compared with cutting processing, the metal fiber (metal stay wire) is continuous along the shape of the product, and no cutting is generated in the middle, so that the strength of the product is improved, and particularly, the mechanical property is excellent.
However, due to the requirements of paint scraping and the like, the bolt tail forming groove needs to be cut by a numerical control lathe after the blank is subjected to cold heading, cutting scraps are generated during processing, raw materials are wasted, and the cost is high; and the working procedures are increased, the production efficiency is low, and the consistency of the processed groove is poor.
In summary, how to provide a bolt forming mold with low cost and high processing efficiency is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a bolt forming die with low costs, machining efficiency is high.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a bolt forming die, includes the die casing, be provided with the die centre form that is used for fixing bolt shaping portion in the die casing, be provided with the shaping groove bellying that is used for processing bolt afterbody groove on the bolt shaping portion.
Preferably, the bolt forming part comprises a bolt head forming part for forming a bolt head, and a screw groove part connected with the bolt head forming part and used for forming the screw rod part, and the forming groove protruding part is arranged at the bottom of the screw groove part.
Preferably, the bolt head forming part is a hexagonal sheet die.
Preferably, a cylindrical opening used for fixing the groove part of the screw rod is arranged in the female die, and the central line of the cylindrical opening coincides with the central line of the female die.
Preferably, the hexagonal piece die and the female die are detachably connected with the female die shell.
Preferably, the bolt forming part is a tungsten steel shell, and the forming groove protruding part is a tungsten steel protrusion.
Preferably, the forming groove convex part is a cone with a quarter circle bottom surface.
Preferably, the molding groove convex part is a right-angle triangular pyramid.
Preferably, the die shell is a cast iron cylinder.
The utility model provides a bolt forming die, including the die casing, be provided with the die centre form that is used for fixing bolt shaping portion in the die casing, be provided with the shaping groove bellying that is used for processing the afterbody groove in the bolt shaping portion.
Wherein, bolt shaping portion generally is provided with the bolt assorted cell body with needs processing, at the cold-heading in-process, the blank receives the punching press of external force in bolt shaping portion and is extruded into required bolt shape, and is provided with the shaping groove bellying in bolt shaping portion, when the blank is by the cold-heading, the material of the bottom of blank will be extruded and form the afterbody groove that matches with the shaping groove bellying in the bottom because the stopping of shaping groove bellying, the utility model provides a bolt forming die can one-step refining shaping bolt's body and afterbody groove, does not need secondary operation, and production efficiency is high to because the afterbody groove is formed by the cold-heading extrusion, whole process can not produce the piece, has saved raw and other materials, has reduced manufacturing cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a front view of a bolt forming mold provided by the present invention;
fig. 2 is a left side view of the bolt forming mold provided by the present invention.
In FIGS. 1-2:
the die comprises a hexagonal die 1, a screw groove body 2, a forming groove bulge 3, a female die shell 4 and a female die inner die 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a bolt forming die with low costs, that machining efficiency is high.
Referring to fig. 1-2, fig. 1 is a front view of a bolt forming mold provided in the present invention; fig. 2 is a left side view of the bolt forming mold provided by the present invention.
The utility model provides a bolt forming die, including die casing 4, be provided with the die centre form 5 that is used for fixing bolt shaping portion in the die casing 4, be provided with the shaping groove bellying 3 that is used for processing bolt afterbody groove in the bolt shaping portion.
Wherein, the die shell 4 is the carrier that is used for parts such as fixed die centre form 5, not only can support fixed die centre form 5, can also play the effect of protection die centre form 5 to a certain extent, it can be understood, be hollow structure in the die shell 4, reserve the space for fixed die centre form 5 of placing, in order to guarantee the structural strength of die shell 4, the not suitable undersize of thickness of die shell 4, the undersize then probably damages because of the atress is too big when the cold-heading blank, die shell 4 is usually fixed by workstation anchor clamps centre gripping, in order to improve the stability of blank when adding man-hour.
It should be noted that the bolt forming portion is used for processing and forming a bolt head, a screw rod, that is, a main body portion of the bolt, the bolt forming portion is generally provided with a groove body matched with a required bolt, a blank is extruded and formed in the bolt forming portion, the bolt forming portion is fixed to the female die inner mold 5, and an acting force applied to the bolt forming portion when the blank is processed needs to be buffered and dispersed through the female die inner mold 5, so that the female die inner mold 5 is relatively easy to damage in a using process, preferably, the female die inner mold 5 and the female die shell 4 can be detachably connected, for example, the female die inner mold 5 and the female die shell 4 can be connected in a clearance fit manner, and a user can replace or maintain the female die inner mold 5 conveniently.
The bolt forming part is provided with a forming groove convex part 3, the specific shape and size of the forming groove convex part 3 need to be set according to the shape and size of the tail groove to be processed, and the forming groove convex part can be a conical or square convex part, and the like, and is not limited specifically here.
At the cold-heading in-process, the blank receives the punching press of external force and is extruded into required bolt shape in bolt shaping portion, and the material of the bottom of blank because the stopping of shaping groove bellying 3 will be extruded and form in the bottom with shaping groove bellying 3 assorted afterbody grooves, the utility model provides a bolt forming die can one shot forming bolt's body and afterbody groove, does not need secondary operation, and production efficiency is high to because the afterbody groove is formed by the cold-heading extrusion, whole process can not produce the piece, has saved raw and other materials, has reduced manufacturing cost.
In one embodiment of the bolt forming part, the bolt forming part comprises a bolt head forming part for forming a bolt head and a screw groove part 2 connected with the bolt head forming part and used for forming a screw part, and a forming groove convex part 3 is arranged at the bottom of the screw groove part 2.
The size of the opening of the bolt head forming part is matched with the size and the shape of the required bolt head, the shapes such as hexagon and circle can be adopted according to different requirements, preferably, the bolt head forming part is a hexagonal sheet die 1, the hexagonal sheet die 1 is a die with an inner hexagonal opening, the size of the inner hexagon is matched with the size of the required bolt head, the hexagonal sheet die 1 is generally regular hexagon, the specific size can be M12, M16 and other size models, the hexagonal sheet die 1 can shape the top of a blank into a hexagonal bolt head, a screw groove body part 2 connected with the bolt head forming part is used for extruding and shaping the lower half part of the blank into a screw, an internal thread is generally arranged on the inner periphery of the screw groove body part 2 so as to form an external thread matched with the internal thread on the screw, and a forming groove convex part 3 is arranged at the bottom of the screw groove body part 2, the bottom of the blank, i.e. the bottom of the screw, is pressed inwardly by the forming groove boss 3 for a portion to form the tail groove.
On the basis of the above specific embodiment, a cylindrical opening for fixing the screw groove part 2 is arranged in the female die 5, and the central line of the cylindrical opening coincides with the central line of the female die 5.
It can be understood that, the periphery of screw shaft trough portion 2 is generally cylindrical with cylindrical trompil assorted, it is convenient to fix screw shaft trough portion 2, cylindrical trompil generally can not run through die centre form 5, the bottom of screw shaft trough portion 2 supports on the die centre form 5 of cylindrical trompil bottom promptly, make the impact force dispersion that screw shaft trough portion 2 received when the cold-heading to die centre form 5 on, and with the central line coincidence of cylindrical trompil and die centre form 5, be for making die centre form 5 atress even, and the service life is prolonged, of course, the trompil shape dimension and the setting position of die centre form 5 are not restricted to above-mentioned mode, the user can select according to actual conditions.
In the present embodiment, for convenience of replacement or maintenance, the hexagonal plate die 1 and the female die inner die 5 are detachably connected to the female die housing 4.
It can be understood that, the user can change different hexagonal piece moulds 1 according to the bolt of required different models, and die centre form 5 is owing to need bear the impact force that comes from bolt shaping portion, it is fragile during the use, therefore, can dismantle die centre form 5 and die casing 4 and be connected, conveniently change after die centre form 5 damages, concretely, hexagonal piece mould 1, die centre form 5, die casing 4 can link to each other through clearance fit, and press from both sides tight fixedly to the three through the clamping piece, of course, can also adopt modes such as draw-in groove connection to connect, this place is not specifically injectd.
In order to ensure that the bolt forming shape meets the requirement, in the specific mode, the bolt forming part is a tungsten steel shell, and the forming groove convex part 3 is a tungsten steel convex part.
Among them, tungsten steel, also called cemented carbide, refers to a sintered composite material composed of at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide and tantalum carbide are common components of tungsten steel. The grain size of the carbide component (or phase) is typically between 0.2 and 10 microns, and the carbide grains are bonded together using a metallic binder. The binder is typically metallic cobalt, but for some particular applications nickel, iron, or other metals and alloys may be used. The tungsten steel has a series of excellent properties of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, particularly high hardness and wear resistance, basically keeps unchanged even at the temperature of 500 ℃, and still has high hardness at the temperature of 1000 ℃. Because the blank generally can adopt materials such as cast iron, has certain hardness, and during cold-heading, the blank has the trend of outwards moving diffusion, will cause very big effort to bolt shaping portion, shaping groove bellying 3, and the high rigidity of tungsten steel can effectively avoid bolt shaping portion, shaping groove bellying to take place to warp under the effort, has guaranteed that the shape and size of fashioned bolt accords with the standard. Of course, the material of the bolt forming portion and the forming groove convex portion 3 is not limited to tungsten steel, and other materials with satisfactory hardness and other properties may be used.
In one embodiment of the forming groove protrusion 3, the forming groove protrusion 3 is a cone with a quarter circle bottom surface.
It should be noted that, the cone whose bottom surface is a quarter circle may be a tetrahedron, the bottom surface is a quarter circle, two surfaces are triangular surfaces whose one side is an arc line, the other surface is a curved surface connecting two triangular surfaces, the tail groove at the bottom of the bolt is matched with the shape of the cone, the tail groove is arranged to make the bolt screwed in the component more smoothly when in use, and a space for placing chips such as paint chips scraped off when the bolt is screwed in can be provided, therefore, the shape and size of the forming groove protruding part 3 are not specially limited, and the user can select according to actual needs, preferably, the forming groove protruding part 3 is a right-angled triangular cone, and correspondingly, the tail groove is also a right-angled triangular cone.
In one embodiment with respect to the die housing 4, the die housing 4 is a cast iron cylinder. Wherein, the hardness of cast iron is higher, and the cost is lower, and the outer fringe of cast iron drum is smooth, does not have the edges and corners, and convenience of customers takes the removal, can avoid the user to be hurt, and of course, the shape and the material of die housing 4 are not limited to above-mentioned mode, and the user can select according to actual conditions.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a bolt forming die has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. The utility model provides a bolt forming die, its characterized in that includes die casing (4), be provided with die centre form (5) that are used for fixing bolt shaping portion in die casing (4), be provided with shaping groove bellying (3) that are used for processing bolt afterbody groove on the bolt shaping portion.
2. The bolt forming die according to claim 1, wherein the bolt forming part comprises a bolt head forming part for forming a bolt head and a screw groove part (2) connected with the bolt head forming part and used for forming a screw part, and the forming groove convex part (3) is arranged at the bottom of the screw groove part (2).
3. Bolt forming die according to claim 2, characterized in that the bolt head forming part is a hexagonal sheet die (1).
4. The bolt forming die according to claim 3, characterized in that a cylindrical opening for fixing the screw groove part (2) is arranged in the female die (5), and the center line of the cylindrical opening coincides with the center line of the female die (5).
5. The bolt forming die according to claim 4, characterized in that the hexagonal piece die (1) and the female die inner die (5) are detachably connected with the female die shell (4).
6. Bolt forming die according to claim 5, characterized in that the bolt forming part is a tungsten steel shell and the forming groove protrusions (3) are tungsten steel protrusions.
7. Bolt forming die according to claim 1, characterized in that the forming groove convex part (3) is a cone with a quarter circle bottom surface.
8. Bolt forming die according to claim 1, characterized in that the forming groove protrusion (3) is a right triangular pyramid.
9. Bolt forming die according to any one of claims 1 to 8, characterized in that the die housing (4) is a cast iron cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921296202.XU CN210412366U (en) | 2019-08-09 | 2019-08-09 | Bolt forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921296202.XU CN210412366U (en) | 2019-08-09 | 2019-08-09 | Bolt forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210412366U true CN210412366U (en) | 2020-04-28 |
Family
ID=70385761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921296202.XU Active CN210412366U (en) | 2019-08-09 | 2019-08-09 | Bolt forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210412366U (en) |
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2019
- 2019-08-09 CN CN201921296202.XU patent/CN210412366U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201231 Address after: No. 619, Chudu Avenue, Yicheng Economic Development Zone, Xiangyang City, Hubei Province Patentee after: Hubei Youqian Auto Parts Co.,Ltd. Address before: No. 168, Nanlu Road, Pudong New Area, Shanghai, 201300 Patentee before: Shanghai Autocraft Co.,Ltd. |