CN217666159U - Split punch die for machining plum blossom groove - Google Patents

Abstract

The application discloses components of a whole that can function independently drift mould for processing plum blossom groove, including the drift casing with set up in plum blossom plug in the drift casing, the drift casing is the cylinder structure, the plum blossom plug is followed the axis of drift casing sets up, the one end salient of plum blossom plug in the drift casing, the periphery of drift casing is provided with the centre gripping groove that corresponds with the cold heading machine. The production requirement of plum blossom groove in the screw flat end can be satisfied to this application simple and practical, can guarantee the effective working length of plum blossom plug, possess the supporting plane again.

Description

Split punch die for machining plum blossom groove

Technical Field

The application relates to the technical field of cold heading dies, in particular to a split punch die for machining a plum blossom groove.

Background

When the quincuncial bolts are produced in a bolt workshop through cold heading, a standard quincuncial punch or a quincuncial punch rod is used, the quincuncial punch or the quincuncial punch rod is of an integrated structure, the quincuncial punch cannot process a deep driving groove, and the quincuncial punch rod cannot process screws with supporting surfaces. Accordingly, improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a components of a whole that can function independently drift mould for processing plum blossom groove to overcome not enough among the prior art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the embodiment of the application discloses components of a whole that can function independently drift mould for processing plum blossom groove, including the drift casing with set up in plum blossom plug in the drift casing, the drift casing is the cylinder structure, the plum blossom plug is followed the axis setting of drift casing, the one end salient of plum blossom plug in the drift casing, and outstanding terminal surface evenly distributed have six sections circular arc bead, six sections the axial setting of plum blossom plug is followed to circular arc bead to constitute plum blossom shape cross-section, the periphery of drift casing is provided with the centre gripping groove that corresponds with the cold heading machine.

Further, in the split punch die for processing the plum blossom grooves, a through hole is formed in the center of the punch shell along the central axis of the punch shell, the through hole comprises a profiling hole and a guide hole, the cross section of the profiling hole is a plum blossom hole, and the profiling hole is in interference fit with the plum blossom-shaped guide hole in the cross section of the plum blossom core rod.

Further, in the above-mentioned components of a whole that can function independently drift mould for processing plum blossom groove, the plum blossom plug deviates from the one end of outstanding drift casing and is provided with the centre gripping axle, the centre gripping axle forms with plum blossom plug integrated into one piece, wherein, centre gripping axle and guiding hole clearance fit.

Further, in foretell components of a whole that can function independently drift mould for processing plum blossom groove, be provided with the transition round platform between centre gripping axle and the plum blossom plug, the end of circular arc bead extends to the transition round platform, be connected with the taper hole centre gripping axle guiding hole that corresponds with the transition round platform between guiding hole and the profile modeling hole.

Furthermore, in the split punch die for processing the plum blossom grooves, the top of the protruding end of the plum blossom core rod is of a conical structure, and the included angle of a symmetrical bus at the top of the conical structure is 140-148 degrees of a clamping shaft.

Furthermore, in the above split punch die for machining the plum blossom groove, a guide boss protrudes from the end surface of the punch shell close to the protruding end of the plum blossom core rod, the guide boss is coaxial with the through hole, and the guide boss is connected with the corresponding end surface conical surface of the punch shell.

Further, in the split punch die for processing the plum blossom grooves, a positive character protrudes from the end face of the punch shell close to the protruding end of the plum blossom core rod, and the protruding height of the positive character is smaller than that of the guide boss.

Compared with the prior art, the utility model has the advantages of: this a components of a whole that can function independently drift mould for processing plum blossom groove simple structure, a drift casing can cooperate the plum blossom plug use of different length, can guarantee the effective working length of plum blossom plug, possesses the supporting plane again, can satisfy the production requirement of plum blossom groove in the screw flat end.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed 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 some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a split punch die for processing a plum blossom groove according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a punch housing according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a punch housing according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a quincuncial core rod according to an embodiment of the present invention.

Fig. 5 is a side view of a quincunx mandrel according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the 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 efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1 to 5, a split punch die for machining a quincunx groove comprises a punch shell 1 and a quincunx core rod 2 detachably arranged in the punch shell 1, wherein the punch shell 1 is of a cylindrical structure, the quincunx core rod 2 is arranged along a central axis of the punch shell 1, one end of the quincunx core rod 2 protrudes out of the punch shell 1, six arc-shaped convex edges 21 are uniformly distributed on the surface of the protruding end, the six arc-shaped convex edges 21 are arranged along the axial direction of the quincunx core rod 2 and form a quincunx cross section, and a clamping groove corresponding to a cold header is formed in the circumferential surface of the punch shell 1.

Among this technical scheme, the plum blossom plug also is cylindric structure, it has six sections circular arc bead to stick out in the one end periphery evenly distributed of drift casing, adjacent evenly distributed has to connect through the circular arc groove between the circular arc bead, the plum blossom plug sticks out the one end cross-section of drift casing promptly and is the plum blossom form, use as the effective section of cold-heading plum blossom groove, the axis of plum blossom plug and the coincidence of the axis of drift casing, this a components of a whole that can function independently drift mould structure for processing plum blossom groove is simple, same drift casing can cooperate the plum blossom plug of different length to use, can guarantee the effective working length of plum blossom plug, possess the supporting plane again, can satisfy the production requirement of plum blossom groove in the screw flat end.

Illustratively, referring to fig. 2 and 3, the center of the punch housing 1 is provided with a through hole along the central axis thereof, and the through hole comprises a profile hole 11 with a quincunx cross section and a guide hole 12, wherein the profile hole 11 is in interference fit with the quincunx cross section of the quincunx core rod 2.

In the technical scheme, the cross section of the profiling hole is also in a quincuncial structure and is in interference fit with the quincuncial core rod, the quincuncial core rod is pressed in by pressure or assembled by a temperature difference method during installation, the quincuncial core rod is completely fixed after being installed, shaking is avoided, the quincuncial core rod is always perpendicular to the end face of the punch shell, and damage or precision reduction caused by instantaneous inclination of punching and the like is avoided.

Exemplarily, referring to fig. 3, one end of the quincuncial core rod 2 away from the punch housing 1 is provided with a clamping shaft 22, the clamping shaft 22 is integrally formed with the quincuncial core rod 2, and the clamping shaft 22 is in clearance fit with the guide hole 12.

Among this technical scheme, the diameter of guiding hole is greater than the biggest footpath in imitative hole, takes the plum blossom plug through the centre gripping axle, and centre gripping axle and guiding hole clearance fit reduce the installation degree of difficulty.

Illustratively, as shown in fig. 2 and 3, a transition round table 23 is arranged between the clamping shaft 22 and the quincunx mandrel 2, the tail end of the arc-shaped convex rib extends to the transition round table, and a taper hole corresponding to the transition round table is connected between the guide hole 12 and the profiling hole 11.

Among this technical scheme, centre gripping axle, transition round platform and plum blossom plug integrated into one piece form, guarantee holistic intensity, circular arc bead and the circular arc groove between them extend to the transition round platform to the rounding off, specific structure belongs to conventional structure, has just not been repeated here one by one, and the angle of taper hole is 50, and the tapering of transition round platform is 20, guarantees the installation depth of plum blossom plug.

Illustratively, referring to fig. 3, the top of the protruding end of the quincunx mandrel is a conical structure, and the included angle of the top of the conical structure is 140 °.

Among this technical scheme, the overhang top of plum blossom plug is the circular cone structure, the leading-in of the punching head in the punching press process of being convenient for.

Illustratively, referring to fig. 1 and 2, a guide boss 13 protrudes from the end surface of the punch shell close to the protruding end of the quincunx core rod, the guide boss 13 is coaxially arranged with the through hole, and the guide boss 13 is connected with the corresponding end surface conical surface of the punch shell.

In the technical scheme, the guide boss protrudes out of the corresponding end face of the punch shell by 0.3mm, and after stamping, a chamfer face can be directly formed at the opening of the plum blossom groove without additional processing, so that the production efficiency is improved.

Illustratively, referring to fig. 1 and 2, a male character 14 protrudes from the end surface of the punch housing 1 near the protruding end of the quincunx mandrel, and the protruding height of the male character 14 is smaller than that of the guide boss.

<xnotran> , , 0.15mm, , , , . </xnotran>

In the actual use process, according to the depth of a plum blossom groove to be processed, selecting a corresponding plum blossom core rod, pressing and installing the plum blossom core rod into a punch head shell, wherein the protruding part length (effective working length) of the plum blossom core rod is equal to the depth of the plum blossom groove to be processed, installing the punch head shell with the plum blossom core rod into a cold header as a whole, and during punching, the end surface of the punch head shell is propped against a support plane to be processed; the same punch shell can be matched with the plum blossom core rods with different lengths for use, so that the effective working length of the plum blossom core rods can be ensured, a supporting plane is also provided, and the production requirement of plum blossom grooves in the flat ends of the screws can be met.

In conclusion, the split punch die for machining the plum blossom grooves is simple in structure, one punch shell can be matched with plum blossom core rods with different lengths for use, the effective working length of the plum blossom core rods can be guaranteed, a supporting plane is also provided, and the production requirement of the plum blossom grooves in the flat ends of screws can be met.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims (7)

1. The utility model provides a components of a whole that can function independently drift mould for processing plum blossom groove, its characterized in that, include the drift casing with set up in plum blossom plug in the drift casing, the drift casing is the cylinder structure, the plum blossom plug is followed the axis of drift casing sets up, the one end salient of plum blossom plug in the drift casing, and outstanding one end surface evenly distributed has six sections circular arc beads, six sections the axial setting of plum blossom plug is followed to the circular arc bead to constitute the plum blossom shape cross-section, the periphery of drift casing is provided with the centre gripping groove that corresponds with the cold heading machine.

2. The split punch die for processing a plum blossom groove as claimed in claim 1, wherein: the center of drift casing is provided with the through-hole along its axis, the through-hole includes that the cross-section is plum blossom hole's profile modeling hole and guiding hole, and wherein, the plum blossom shape interference fit of profile modeling hole and plum blossom plug cross-section.

3. The split punch die for processing a plum blossom groove as claimed in claim 2, wherein: the one end that the plum blossom plug deviates from outstanding in drift casing is provided with the centre gripping axle, the centre gripping axle forms with plum blossom plug integrated into one piece, wherein, centre gripping axle and guiding hole clearance fit.

4. The split punch die for processing a plum blossom groove as claimed in claim 3, wherein: be provided with the transition round platform between centre gripping axle and the plum blossom plug, the end of circular arc bead extends to the transition round platform, be connected with the taper hole that corresponds with the transition round platform between guiding hole and the profile modeling hole.

5. The split punch die for processing a plum blossom groove as claimed in claim 1, wherein: the top of the protruding end of the quincuncial core rod is of a conical structure, and the included angle of symmetrical buses at the top of the conical structure is 140-148 degrees.

6. The split punch die for processing a plum blossom groove as claimed in claim 2, wherein: the punch head shell is characterized in that a guide boss is convexly extended on the end face, close to the protruding end of the quincuncial core rod, of the punch head shell, the guide boss is coaxially arranged with the through hole, and the guide boss is connected with the corresponding end face conical surface of the punch head shell.

7. The split punch die for processing a plum blossom groove as claimed in claim 6, wherein: the punch shell is provided with a right letter protruding from the end face close to the protruding end of the quincuncial core rod, and the protruding height of the right letter is smaller than that of the guide boss.

Images