CN208853636U - A kind of screw punch pin - Google Patents
A kind of screw punch pin Download PDFInfo
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- CN208853636U CN208853636U CN201820477045.1U CN201820477045U CN208853636U CN 208853636 U CN208853636 U CN 208853636U CN 201820477045 U CN201820477045 U CN 201820477045U CN 208853636 U CN208853636 U CN 208853636U
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- needle
- cylindrical body
- screw
- head dummy
- working face
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Abstract
The utility model belongs to cold-heading screw technical field more particularly to a kind of screw punch pin, including cylindrical body and needle-like, and cylindrical body includes working face and mounting surface, and cylindrical body offers the gas vent through working face and mounting surface；Cylindrical body is additionally provided with the gas port through gas vent and cylindrical body side wall；Needle-like is arranged on working face, and needle-like offers the air passing hole being connected to gas vent；Needle-like includes ring body, ring body is equipped with several cords, cancave cambered surface is equipped between two adjacent cords, and convex globoidal is equipped between two adjacent cancave cambered surfaces, in process, air between needle-like and screw head dummy is discharged by air passing hole and gas port, prevents from generating air pressure between needle-like and screw head dummy；Rapidoprint is squeezed into cancave cambered surface by cord, and simultaneously moulding is blocked when reaching convex globoidal, forms concave-convex screw head dummy cambered surface, keeps screw head dummy full and increases frictional force, it is ensured that the quality of screw head dummy avoids screw head dummy pressurising not full.
Description
Technical field
The utility model belongs to cold-heading screw technical field more particularly to a kind of screw punch pin.
Background technique
In existing cold-heading screw processing, for processing the screw head dummy with column structure in some grooves, screw terminal
Type often will appear the phenomenon that column structure pressurising is not full in groove structure and groove, process waste product so as to cause screw head dummy
Rate is higher, for this reason, it is necessary to which it is not full to research and develop column structure pressurising in a groove structure and groove for preventing screw head dummy
Formed punch, with ensure screw head dummy processing quality.
Utility model content
The purpose of this utility model is to provide a kind of screw punch pins, it is intended to solve the screw head dummy of the formed punch of the prior art
Groove structure and groove in the not full technical problem of column structure pressurising.
A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: screw punch pin, including cylindrical body and
Needle-like, the cylindrical body include the working face and mounting surface being oppositely arranged, and the cylindrical body is offered through the work
The gas vent in face and the mounting surface；The cylindrical body is additionally provided with the air guide through the gas vent and cylindrical body side wall
Hole, the aperture of the cylindrical body sidewall end of the gas port are less than the aperture of exhaust nose end；The needle-like is arranged on working face,
And the needle-like offers the air passing hole being connected to the gas vent；The needle-like includes ring body, on the ring body
Equipped with several cords to radially distribute, cancave cambered surface, and the two adjacent concave arcs are equipped between the cord of adjacent two
Convex globoidal is equipped between face.
Further, the aperture of the gas vent is greater than the aperture of the air passing hole.
Further, the working face is equipped with formed punch head dummy, and the ring body is set in formed punch head dummy.
Further, the working face is additionally provided with buffer gasket and dashpot, and the buffer gasket is installed on the buffering
In slot.
Further, the width of the buffering trench bottom is greater than the width of buffering channel opening.
Further, the outer wall of the ring body is equipped with interior re-entrant angle, is equipped between the interior re-entrant angle of adjacent two outer
Salient angle.
Further, the cancave cambered surface and the convex globoidal are obliquely installed towards the outer wall of the ring body.
Further, the radian of the interior re-entrant angle is less than the radian of outer salient angle.
Further, the surface of the cylindrical body and the surface of the needle-like, which are plated, is equipped with wear resistant corrosion resistant layer.
Further, the wear resistant corrosion resistant layer is titanium coating.
The utility model has the beneficial effects that the screw punch pin of the utility model is in process, needle-like and screw head dummy
Between air entered in gas vent by the working face end of air passing hole, be discharged from the mounting surface end of gas vent and pass through air guide
Hole is discharged to outside cylindrical body side wall, and since the aperture of gas port sidewall end is less than the aperture of exhaust nose end, gas port forms text
Family name pipe, the principle of Venturi tube be exactly air-flow from the coarse to fine, to accelerate gas flow rate, keep gas attached in the rear side of venturi outlet
The relatively low flowing for generating suction-operated and leading to gas of nearly air pressure, the air under adsorption force in gas vent are persistently inhaled
It is discharged, accelerates outside the air discharge formed punch between needle-like and screw head dummy, to effectively prevent needle-like and spiral shell into gas port
Air pressure is generated between silk head dummy, influences screw terminal shape shape；The ring body is equipped with several radially distribute simultaneously
Cord is equipped with cancave cambered surface between the cord of adjacent two, and convex globoidal is equipped between the two adjacent cancave cambered surfaces, in pressure
Under the action of, rapidoprint is squeezed into cancave cambered surface by cord, and simultaneously moulding is blocked when reaching convex globoidal, ultimately forms bumps
Screw head dummy cambered surface, keep screw head dummy full and increase frictional force, it is ensured that screw head dummy processing quality, avoid screw terminal
Column structure pressurising is not full in the groove structure and groove of type.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of screw punch pin of the utility model.
Fig. 2 is the partial enlargement diagram of needle-like structure.
Fig. 3 is a kind of the schematic diagram of the section structure of screw punch pin of the utility model.
Fig. 4 is the partial enlargement diagram in Fig. 3 at A.
Wherein, each appended drawing reference in Fig. 1 to Fig. 4:
1- cylindrical body 2- needle-like 3- gas vent
4- gas port 5- air passing hole 6- wear resistant corrosion resistant layer
11- working face 12- mounting surface 13- formed punch head dummy
14- buffer gasket 15- dashpot 21- ring body
22- cord 23- cancave cambered surface 24- convex globoidal
The outer salient angle of re-entrant angle 26- in 25-
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in Figs 1-4, a kind of screw punch pin described in the present embodiment, including cylindrical body 1 and needle-like 2, the cylindricality
Ontology 1 includes the working face 11 and mounting surface 12 being oppositely arranged, and the cylindrical body 1 is offered through the working face 11 and institute
State the gas vent 3 of mounting surface 12；The cylindrical body 1 is additionally provided with the gas port through the gas vent 3 and 1 side wall of cylindrical body
4, the aperture of 1 sidewall end of cylindrical body of the gas port 4 is less than the aperture at 3 end of gas vent；The needle-like 2 is arranged in working face
On 11, and the needle-like 2 offers the air passing hole 5 being connected to the gas vent 3；The needle-like 2 includes ring body 21, described
Ring body 21 is equipped with several cords 22 to radially distribute, is equipped with cancave cambered surface 23 between the cord 22 of adjacent two,
And convex globoidal 24 is equipped between the two adjacent cancave cambered surfaces 23.Specifically, in process, needle-like 2 and screw head dummy it
Between air entered in gas vent 3 by 11 end of working face of air passing hole 5, be discharged from 12 end of mounting surface of gas vent 3 and logical
It crosses gas port 4 to be discharged to outside 1 side wall of cylindrical body, since the aperture of 1 sidewall end of cylindrical body of gas port 4 is less than exhaust nose end
Aperture, gas port 4 formed Venturi tube, the principle of Venturi tube be exactly air-flow from the coarse to fine, to accelerate gas flow rate, make gas
The relatively low flowing for generating suction-operated and leading to gas of air pressure near the rear side of venturi outlet, under adsorption force
Air in gas vent 3, which is persistently drawn onto gas port 4, to be discharged, and the air discharge formed punch between needle-like 2 and screw head dummy is accelerated
Outside, to effectively prevent generating air pressure between needle-like 2 and screw head dummy, screw terminal shape shape is influenced；Simultaneously in the effect of pressure
Under, rapidoprint is squeezed into cancave cambered surface 23 by cord 22, and simultaneously moulding is blocked when reaching convex globoidal 24, ultimately forms bumps
Screw head dummy cambered surface, keep screw head dummy full and increase frictional force, it is ensured that screw head dummy processing quality, avoid screw terminal
Column structure pressurising is not full in the groove structure and groove of type.
As shown in figures 1 and 3, the aperture of a kind of screw punch pin described in the present embodiment, the gas vent 3 is greater than the mistake
The aperture of stomata 5.Specifically, in process, air is made due to the quick twitch of formed punch when formed punch leaves screw head dummy
It is discharged from being flowed into the lesser air passing hole 5 in aperture in the biggish gas vent 3 in aperture, gas vent 3 and air passing hole 5 form Wen
Guan the principle of Venturi tube be exactly air-flow from the coarse to fine, to accelerate gas flow rate, make gas near the rear side of venturi outlet
The relatively low flowing for generating suction-operated and leading to gas of air pressure, the air under adsorption force in gas vent 3 are persistently inhaled
It is discharged into air passing hole 5, realizes heat spreading function.
As shown in Figs. 1-2, a kind of screw punch pin described in the present embodiment, the working face 11 are equipped with formed punch head dummy 13, institute
Ring body 21 is stated in formed punch head dummy 13.Specifically, by the way that ring body 21 to be set in formed punch head dummy 13, annular is realized
Ontology 21 is set on working face 11.
As shown in figures 1 and 3, a kind of screw punch pin described in the present embodiment, the working face 11 are additionally provided with buffer gasket
14 and dashpot 15, the buffer gasket 14 be installed in the dashpot 15.Specifically, solid by realizing in dashpot 15
The height determined buffer gasket 14, and rush washer 14 is greater than the depth of dashpot 15, process of the buffer gasket 14 in punching press screw
In there is slow only formed punch excessively to hit, protection formed punch effect.
As shown in figure 3, a kind of screw punch pin described in the present embodiment, the width of 15 bottom of dashpot is greater than dashpot
The width of 15 openings.Specifically, it by the way that the width setting of 15 bottom of dashpot is greater than the width that dashpot 15 is open, realizes anti-
Only buffer gasket 14 is fallen during punching press screw, naturally it is also possible to limiting component be arranged in 15 opening of dashpot, really
Buffer gasket 14 is protected not fall out during punching press screw.
As shown in Figs. 1-2, the outer wall of a kind of screw punch pin described in the present embodiment, the ring body 21 is equipped with indent
Angle 25 is equipped with outer salient angle 26 between the interior re-entrant angle 25 of adjacent two.Specifically, ring is realized by interior re-entrant angle 25 and outer salient angle 26
The outer wall of shape ontology 21 smoothly transits.
As shown in Figs. 1-2, a kind of screw punch pin described in the present embodiment, the cancave cambered surface 23 and the equal court of the convex globoidal 24
It is obliquely installed to the outer wall of the ring body 21.Specifically, in process, the cancave cambered surface 23 and the convex globoidal 24
Inclined-plane is formed, so that needle-like 2 is more convenient punching press into rapidoprint in the taper of protrusion, realizes the molding work of extrusion process material
With.
As shown in Figs. 1-2, the radian of a kind of screw punch pin described in the present embodiment, the interior re-entrant angle 25 is less than outer salient angle 26
Radian.Specifically, the radian of outer salient angle 26 is less than by the radian design by interior re-entrant angle 25, salient angle 26 is made to become stress angle.
As shown in Figure 3-4, a kind of screw punch pin described in the present embodiment, the surface of the cylindrical body 1 and the needle-like 2
Surface plate be equipped with wear resistant corrosion resistant layer 6.Specifically, pass through the surface Jun Du on the surface of cylindrical body 1 and the needle-like 2
Upper wear resistant corrosion resistant layer 6 realizes the fatigue strength for improving the cylindrical body 1 and the needle-like 2, reduces formed punch high temperature defibrator process consumption
Amount.
As shown in Figure 3-4, a kind of screw punch pin described in the present embodiment, the wear resistant corrosion resistant layer 6 are titanium coating.Tool
Body, wear resistant corrosion resistant is realized by titanizing metal layer.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. a kind of screw punch pin, it is characterised in that: including cylindrical body (1) and needle-like (2), the cylindrical body (1) includes phase
To the working face (11) and mounting surface (12) of setting, the cylindrical body (1) is offered through the working face (11) and described
The gas vent (3) of mounting surface (12)；The cylindrical body (1) is additionally provided with through the gas vent (3) and cylindrical body (1) side wall
Gas port (4), the aperture of cylindrical body (1) sidewall end of the gas port (4) is less than the aperture at gas vent (3) end；It is described
Needle-like (2) is arranged on working face (11), and the needle-like (2) offers the air passing hole (5) being connected to the gas vent (3)；
The needle-like (2) includes ring body (21), and the ring body (21) is equipped with several cords (22) to radially distribute,
Cancave cambered surface (23) are equipped between the cord of adjacent two (22), and are equipped with convex globoidal between the two adjacent cancave cambered surfaces (23)
(24)；The working face (11) is additionally provided with buffer gasket (14) and dashpot (15), and the buffer gasket (14) is installed on described
In dashpot (15), the width of dashpot (15) bottom is greater than the width of dashpot (15) opening；The gas vent (3)
Aperture is greater than the aperture of the air passing hole (5).
2. a kind of screw punch pin according to claim 1, it is characterised in that: the working face (11) is equipped with formed punch head dummy
(13), the ring body (21) is set in formed punch head dummy (13).
3. a kind of screw punch pin according to claim 1, it is characterised in that: the outer wall of the ring body (21) is equipped with
Interior re-entrant angle (25) is equipped with outer salient angle (26) between the interior re-entrant angle (25) of adjacent two.
4. a kind of screw punch pin according to claim 1, it is characterised in that: the cancave cambered surface (23) and the convex globoidal
(24) it is obliquely installed towards the outer wall of the ring body (21).
5. a kind of screw punch pin according to claim 3, it is characterised in that: the radian of the interior re-entrant angle (25) is less than evagination
The radian at angle (26).
6. a kind of screw punch pin described in -5 any one according to claim 1, it is characterised in that: the cylindrical body (1)
Surface and the surface of the needle-like (2), which are plated, is equipped with wear resistant corrosion resistant layer (6).
7. a kind of screw punch pin according to claim 6, it is characterised in that: the wear resistant corrosion resistant layer (6) is titanium
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820477045.1U CN208853636U (en) | 2018-04-04 | 2018-04-04 | A kind of screw punch pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820477045.1U CN208853636U (en) | 2018-04-04 | 2018-04-04 | A kind of screw punch pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208853636U true CN208853636U (en) | 2019-05-14 |
Family
ID=66410501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820477045.1U Active CN208853636U (en) | 2018-04-04 | 2018-04-04 | A kind of screw punch pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208853636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475811A (en) * | 2020-11-25 | 2021-03-12 | 嘉兴市飞立流体科技有限公司 | Machining process of oil pipe joint |
-
2018
- 2018-04-04 CN CN201820477045.1U patent/CN208853636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475811A (en) * | 2020-11-25 | 2021-03-12 | 嘉兴市飞立流体科技有限公司 | Machining process of oil pipe joint |
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