CN208178345U - A kind of cold-heading torsion screw punch pin - Google Patents

Abstract

The utility model belongs to cold-heading screw technical field, more particularly to a kind of cold-heading torsion screw punch pin, it includes cylindrical body and needle-like, the cylindrical body includes the working face and mounting surface being oppositely arranged, the mounting surface is connected with buffer part, the buffer part includes the first fixed plate and the second fixed plate, first fixed plate is equipped with the first fixed block, second fixed plate is equipped with the second fixed block, spring is equipped between fixed plate, the spring is fixed between the first fixed block and the second fixed block, first fixed plate and second fixed plate are equipped with spring column, the spring column of first fixed plate and second fixed plate shifts to install, the cold-heading torsion screw punch pin of the utility model, the impulse force of punching press is buffered by buffer part, damage caused by avoiding formed punch from directly impacting with cavity plate, reduce the cost of replacement formed punch simultaneously.

Description

A kind of cold-heading torsion screw punch pin

Technical field

The utility model belongs to cold-heading screw technical field more particularly to a kind of cold-heading torsion screw punch pin.

Background technique

In existing cold-heading screw processing, impulse force is excessive when due to punching press, is easy to damage formed punch.And formed punch is all It is made of noble metal alloy, often more renews formed punch and increase production cost, a work is effectively relieved for this reason, it is necessary to research and develop With the impulse force on formed punch, damage caused by formed punch is avoided, while reducing the formed punch of the cost of replacement formed punch.

Utility model content

The purpose of this utility model is to provide a kind of impulse forces with relaxation effect on formed punch, caused by avoiding formed punch Damage, at the same reduce replacement formed punch cost, it is intended to solve it is in the prior art due to punching press when impulse force it is excessive, make formed punch The technical issues of at damage.

A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: cold-heading torsion screw punch pin comprising Cylindrical body and needle-like, the cylindrical body include the working face and mounting surface being oppositely arranged, and the mounting surface is connected with buffering Portion, the buffer part include the first fixed plate and the second fixed plate, and first fixed plate is equipped with the first fixed block, and second is fixed Plate is equipped with the second fixed block, is equipped with spring between fixed plate, and the spring is fixed between the first fixed block and the second fixed block, First fixed plate and second fixed plate are equipped with spring column, the spring column of first fixed plate and second fixed plate It shifts to install.

Further, the spring column includes interconnecting piece and elastic part, and the elastic part diameter is greater than interconnecting piece diameter, described Elastic part is shorter in length than interconnecting piece length, and the two adjacent spring columns are additionally provided with connecting plate, and the connecting plate offers through-hole, the connection Portion is arranged in the through-hole.

Further, the needle-like is arranged on working face, and the needle-like includes ring body, is set on the ring body There are several cords to radially distribute, cancave cambered surface, and the two adjacent cancave cambered surfaces are equipped between the cord of adjacent two Between be equipped with convex globoidal.

Further, the working face is equipped with formed punch head dummy, and the ring body is set in formed punch head dummy.

Further, the cancave cambered surface and the convex globoidal are obliquely installed towards the outer wall of the ring body.

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 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 cold-heading torsion screw punch pin of the utility model, by being connected in mounting surface Buffer part, the buffer part include the first fixed plate and the second fixed plate, first fixed plate be equipped with the first fixed block, second Fixed plate is equipped with the second fixed block, is equipped with spring between fixed plate, the spring is fixed on the first fixed block and the second fixed block Between, first fixed plate and second fixed plate are equipped with spring column, first fixed plate and second fixed plate Spring column shift to install, when formed punch punching press screw spring be pressurized, buffer the impulse force of punching press, while spring column is also pressurized, spring column by Be deformed when pressure, since spring column shifts to install, between each spring column can phase mutual friction, extruding and limit spring column deformation excessively play more Good second buffering punching press effect, damage caused by avoiding formed punch from directly impacting with cavity plate, while reducing replacement formed punch Cost.

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 cold-heading torsion screw punch pin provided by the embodiment of the utility model.

Fig. 2 is the structural schematic diagram of needle-like.

Fig. 3 is a kind of the schematic diagram of the section structure of cold-heading torsion screw punch pin.

Fig. 4 is the portion the A enlarged structure schematic diagram of Fig. 3.

Fig. 5 is the portion the B enlarged structure schematic diagram of Fig. 3.

Wherein, each appended drawing reference in figure:

1- cylindrical body 2- needle-like 3- wear resistant corrosion resistant layer

11- working face 12- mounting surface 13- buffer part

14- formed punch head dummy 21- ring body 22- cord

Re-entrant angle in 23- cancave cambered surface 24- convex globoidal 25-

Outer salient angle 131- the first fixed plate the second fixed plate of 132- of 26-

133- the first fixed block 134- the second fixed block 135- spring

136- spring column 137- connecting plate 138- through-hole

1361- interconnecting piece 1362- elastic part

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. 1-5, the utility model embodiment provides a kind of cold-heading torsion screw punch pin, including 1 He of cylindrical body Needle-like 2, the cylindrical body 1 include the working face 11 and mounting surface 12 being oppositely arranged, and the mounting surface 12 is connected with buffer part 13, the buffer part 13 includes the first fixed plate 131 and the second fixed plate 132, and it is fixed that first fixed plate 131 is equipped with first Block 133, the second fixed plate 132 are equipped with the second fixed block 134, are equipped with spring 135 between fixed plate, the spring 135 is fixed on Between first fixed block 133 and the second fixed block 134, first fixed plate 131 and second fixed plate 132 are equipped with bullet The spring column 136 of column 136, first fixed plate 131 and second fixed plate 132 shifts to install.

Specifically, the cold-heading torsion screw punch pin of the utility model embodiment, by solid in mounting surface 12 and buffer part 13 Fixed connection, spring 135 is fixed between the first fixed block 133 and the second fixed block 134, the first fixed plate 131 and described the Two fixed plates 132 are equipped with the spring column 136 shifted to install, and when formed punch punching press screw, spring 135 is pressurized, and buffer rushing for punching press Power, while spring column 136 is also pressurized, spring column 136 is deformed when being pressurized, since spring column 136 shifts to install, meeting between each spring column 136 Phase mutual friction, extruding and limit spring column 136 and deform and excessively play the role of the buffering punching press of better second, avoid formed punch directly with Cavity plate damages caused by impacting, while reducing the cost of replacement formed punch.

As shown in Fig. 1, Fig. 3 and Fig. 5, in the present embodiment, the spring column 136 includes interconnecting piece 1361 and elastic part 1362, 1362 diameter of elastic part is greater than 1361 diameter of interconnecting piece, and the elastic part 1362 is shorter in length than 1361 length of interconnecting piece, and two The adjacent spring column 136 is additionally provided with connecting plate 137, and the connecting plate 137 offers through-hole 138, and the interconnecting piece 1361 is arranged in institute It states in through-hole 138.Specifically, the cold-heading torsion screw punch pin of the utility model embodiment, by by the elastic part of spring column 136 The setting of 1362 diameters is greater than 1361 diameter of interconnecting piece, the setting of 1362 length of elastic part is shorter than 1361 length of interconnecting piece, two-phase The adjacent spring column 136 is arranged in the through-hole 138, realizes that elastic part 1362 is stuck in the one of through-hole 138 when spring column 136 is sprung back Side, to limit the rebound amplitude of spring 135 when completing punching press.

As shown in Figs. 1-2, in the present embodiment, the needle-like 2 is arranged on working face 11, and the needle-like 2 includes annular sheet Body 21, the ring body 21 are equipped with several cords 22 to radially distribute, are equipped between the cord 22 of adjacent two Cancave cambered surface 23, and convex globoidal 24 is equipped between the two adjacent cancave cambered surfaces 23.Specifically, the cold-heading of the utility model embodiment Rapidoprint is extruded into cancave cambered surface 23 by cord 22, is blocked simultaneously when reaching convex globoidal 24 by torsion screw punch pin Moulding ultimately forms concave-convex screw head dummy cambered surface, keeps screw head dummy full and increase frictional force, it is ensured that the processing of screw head dummy Quality.

As shown in Figs. 1-2, in the present embodiment, the working face 11 is equipped with formed punch head dummy 14, and the ring body 21 is set to In formed punch head dummy 14.Specifically, the cold-heading torsion screw punch pin of the utility model embodiment, by the way that ring body 21 is set to punching In head's type 13, realize that ring body 21 is set on working face 11.

As shown in Figs. 1-2, in the present embodiment, the cancave cambered surface 23 and the convex globoidal 24 are towards the ring body 21 Outer wall be obliquely installed.Specifically, the cold-heading torsion screw punch pin of the utility model embodiment, passes through the cancave cambered surface 23 and institute The inclined-plane for stating the formation of convex globoidal 24 makes needle-like 2 be more convenient punching press into rapidoprint in the taper of protrusion, realizes extrusion process material Expect molding effect.

As shown in Fig. 2, the outer wall of the ring body 21 is equipped with interior re-entrant angle 25, described in adjacent two in the present embodiment Outer salient angle 26 is equipped between interior re-entrant angle 25.Specifically, the cold-heading torsion screw punch pin of the utility model embodiment, passes through interior re-entrant angle 25 and outer salient angle 26 realize ring body 21 outer wall smoothly transit.

As shown in Fig. 2, the radian of the interior re-entrant angle 25 is less than the radian of outer salient angle 26 in the present embodiment.Specifically, this reality With the cold-heading torsion screw punch pin of new embodiment, the radian of outer salient angle 26 is less than by the radian design by interior re-entrant angle 25, is made Salient angle 26 becomes stress angle.

As shown in Figure 3-4, in the present embodiment, the surface of the cylindrical body 1 and the surface of the needle-like 2 are plated equipped with resistance to Grind anti-corrosion layer 3.Specifically, the cold-heading torsion screw punch pin of the utility model embodiment, by surface in cylindrical body 1 and The surface of the needle-like 2 crosses wear resistant corrosion resistant layer 6 and realizes the fatigue strength for improving the cylindrical body 1 and the needle-like 2, Reduce formed punch high temperature defibrator process consumption.

As shown in Figure 3-4, in the present embodiment, the wear resistant corrosion resistant layer 3 is titanium coating.Specifically, the utility model The cold-heading torsion screw punch pin of embodiment realizes wear resistant corrosion resistant 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 (9)

1. a kind of cold-heading torsion screw punch pin, it is characterised in that: including cylindrical body (1) and needle-like (2), the cylindrical body It (1) include the working face (11) and mounting surface (12) being oppositely arranged, the mounting surface (12) is connected with buffer part (13), described slow Rushing portion (13) includes the first fixed plate (131) and the second fixed plate (132), and it is fixed that first fixed plate (131) is equipped with first Block (133), the second fixed plate (132) are equipped with the second fixed block (134), are equipped with spring (135) between fixed plate, the spring (135) it is fixed between the first fixed block (133) and the second fixed block (134), first fixed plate (131) and described second Fixed plate (132) is equipped with spring column (136), the spring column of first fixed plate (131) and second fixed plate (132) (136) it shifts to install.

2. a kind of cold-heading torsion screw punch pin according to claim 1, it is characterised in that: the spring column (136) includes connecting Socket part (1361) and elastic part (1362), elastic part (1362) diameter are greater than interconnecting piece (1361) diameter, the elastic part (1362) it is shorter in length than interconnecting piece (1361) length, the two adjacent spring columns (136) are additionally provided with connecting plate (137), the connecting plate (137) it offers through-hole (138), the interconnecting piece (1361) is arranged in the through-hole (138).

3. a kind of cold-heading torsion screw punch pin according to claim 1, it is characterised in that: the needle-like (2) is arranged in work Make on face (11), the needle-like (2) includes ring body (21), and the ring body (21) is equipped with several radially distribute Cord (22), be equipped with cancave cambered surface (23) between the cord of adjacent two (22), and the two adjacent cancave cambered surfaces (23) it Between be equipped with convex globoidal (24).

4. a kind of cold-heading torsion screw punch pin according to claim 3, it is characterised in that: the working face (11) is equipped with punching Head's type (14), the ring body (21) are set in formed punch head dummy (14).

5. a kind of cold-heading torsion screw punch pin according to claim 3, it is characterised in that: the cancave cambered surface (23) and described Convex globoidal (24) is obliquely installed towards the outer wall of the ring body (21).

6. a kind of cold-heading torsion screw punch pin according to claim 3, it is characterised in that: outside the ring body (21) Wall 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.

7. a kind of cold-heading torsion screw punch pin according to claim 6, it is characterised in that: the radian of the interior re-entrant angle (25) Less than the radian of outer salient angle (26).

8. a kind of cold-heading torsion screw punch pin described in -7 any one according to claim 1, it is characterised in that: the cylindricality sheet The surface of body (1) and the surface of the needle-like (2), which are plated, is equipped with wear resistant corrosion resistant layer (3).

9. a kind of cold-heading torsion screw punch pin according to claim 8, it is characterised in that: the wear resistant corrosion resistant layer (3) For titanium coating.