CN214814335U - Combined mold for molding roller - Google Patents

Abstract

The utility model provides a combination die for shaping roller, is including the overcoat that has an hole be equipped with in the hole of overcoat and be used for supporting shaping subassembly of roller shaping and be used for the support bearing assembly of shaping subassembly, shaping subassembly constitute by the work cover, the base that sets up in the work cover bottom and transition cover, transition cover cooperation install in the hole of overcoat, work cover and base cooperation are installed in the hole of transition cover, wherein the fitting surface of transition cover and overcoat and the contained angle of axis are less than the fitting surface of work cover and base and transition cover and the contained angle of axis, a inclined plane has on the side end face of base and work cover contact, form the gas pocket between the bottom terminal surface of this inclined plane and work cover the position that corresponds with the gas pocket on the transition cover is equipped with the gas pocket that runs through the transition cover. This scheme is through carrying out optimal design to the structure of shaping subassembly, realizes a modular mould, and this mould has long service life's advantage.

Description

Combined mold for molding roller

Technical Field

The utility model relates to a roller forming die technical field specifically is a modular mold for shaping roller.

Background

At present, the die for processing the roller mostly adopts the following structure: the forming device comprises a punch seat body, wherein a forming piece for forming the end face of a roller is arranged at the upper end of the punch seat body, a push hole communicated with a forming cavity is formed in the lower end of the punch seat body, and the existing forming piece generally consists of a forming inner core and an outer protective sleeve and is integrally embedded in the forming cavity of the punch seat body; because the existing design is not perfect, the following disadvantages are also provided: firstly, the forming inner core and the bearing component of the existing punch die are easy to damage, and generally need to be replaced in time after half a month of use, so that the processing cost is high; secondly, in the punching process, the formed inner core transmits the impact force vibration to the outer sleeve, so that the outer shell of the punch is often easy to damage.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a modular mold for shaping roller carries out optimal design through the structure to the shaping subassembly, realizes a modular mold, and this mould has long service life's advantage.

The utility model adopts the technical proposal that: the utility model provides a combination formula mould for shaping roller, is including the overcoat that has an hole be equipped with in the hole of overcoat and be used for supporting shaping subassembly of roller shaping and be used for supporting shaping subassembly's carrier assembly, shaping subassembly has a die cavity and the through-hole that communicates this die cavity, carrier assembly has one and pushes out the hole be equipped with the subassembly that pushes out that is used for pushing out the die cavity with the work piece after the shaping in pushing out the hole, shaping subassembly constitute by work cover, base and the transition cover of setting in the work cover bottom, the cooperation of transition cover install in the hole of overcoat, work cover and base cooperation are installed in the hole of transition cover, wherein the fitting surface of transition cover and overcoat and the contained angle of axis are less than the fitting surface and the contained angle of axis of work cover and base and transition cover, a inclined plane has on the base and the side end face of work cover contact, an air groove is formed between the inclined surface and the bottom end surface of the working sleeve, and an air hole penetrating through the transition sleeve is formed in the position, corresponding to the air groove, on the transition sleeve.

Further optimize, it comprises ejector rod, heelpiece and piston rod to release the subassembly, ejector rod, heelpiece and piston rod connect gradually, and drive mechanism output power on the cold heading machine transmits for the piston rod.

Further optimized, the included angle between the matching surfaces of the transition sleeve and the outer sleeve and the axis is 30' -1 degrees, and the included angle between the matching surfaces of the working sleeve and the base and the transition sleeve and the axis is 3-6 degrees.

Further optimization, the included angle between the matching surfaces of the working sleeve, the base and the transition sleeve and the axis is 4 degrees.

Further preferably, a damping groove is arranged between the inner surface of the outer sleeve and the forming assembly.

Further preferably, the working sleeve is made of hard alloy materials.

Further preferably, the outer circumferential surface of the outer sleeve is provided with a plurality of air guide grooves distributed along the axial direction.

Further preferably, the outer circumferential surface of the outer sleeve is provided with a positioning groove.

The utility model has the advantages that:

one of them, this scheme carry out optimal design through the structure to the shaping subassembly, and the effectual life who improves the shaping subassembly specifically is: the transition sleeve is arranged in the inner hole of the outer sleeve in a matching mode, the included angle between the matching surface of the transition sleeve and the outer sleeve and the axis is 30' -1 degrees, the working sleeve and the base are arranged in the inner hole of the transition sleeve in a matching mode, and the included angle between the matching surface of the working sleeve and the base and the transition sleeve and the axis is 3-6 degrees; this structure can be seen from outside to inside, and its cooperation angle is progressively getting bigger, through the inclination that changes the fitting surface to increase interference force and parcel power, let work cover and base more stable in the overcoat, effectively improve the life of shaping subassembly.

In its second, this scheme, optimize the detail structure of base, work cover and transition cover, specifically do: the base is provided with an inclined plane on the end face of one side contacting with the working sleeve, an air groove is formed between the inclined plane and the end face of the bottom of the working sleeve, an air hole penetrating through the transition sleeve is arranged at the position on the transition sleeve corresponding to the air groove, the air hole can be communicated with an exhaust hole on the outer sleeve, air flow generated in the impact process can be effectively discharged along the air groove and the air hole, vibration is reduced, and the precision of workpiece forming is improved.

In the third, this scheme, carry out optimal design to the surface of overcoat, improve the device stamping process's smoothness nature, specifically do: the outer peripheral surface of the outer sleeve is provided with a plurality of axially distributed flow guide gas grooves, so that gas or oil generated in the cold heading process can be conveniently discharged from gaps of the flow guide gas grooves.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of a molding assembly;

fig. 3 is a schematic structural view of a load bearing assembly.

Reference numerals: 1. the device comprises an outer sleeve, 11, a positioning groove, 12, a damping groove, 2, a forming component, 21, a transition sleeve, 211, an air hole, 22, a working sleeve, 221, a forming cavity, 23, a base, 231, an air groove, 24, a first matching surface, 25, a second matching surface, 3, a bearing block, 31, a step surface, 4, a threaded pad, 41, a limiting groove, 5, a push-out rod, 6, a bottom pad, 7 and a piston rod.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

It should be noted that: unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description of the present application does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, indicates that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, but does not exclude other elements or items.

As shown in fig. 1, a combination mold for molding a roller includes an outer sleeve 1 having an inner hole, a molding assembly for molding a roller and a bearing assembly for supporting the molding assembly are disposed in the inner hole of the outer sleeve 1, the molding assembly has a molding cavity and a through hole communicating with the molding cavity, the bearing assembly has a push-out hole, and a push-out assembly for pushing out a molded workpiece from the molding cavity is disposed in the push-out hole.

The detailed structure of the forming assembly and the bearing assembly in the scheme is described in detail below with reference to the accompanying drawings:

as shown in fig. 1 and 2, the forming assembly 2 comprises a working sleeve 22, a base 23 and a transition sleeve 21, the base 23 and the transition sleeve 21 are arranged at the bottom of the working sleeve 22 and are used for supporting the working sleeve, a forming cavity 221 is arranged on the working sleeve 22, a through hole communicated with the forming cavity 231 is arranged on the base 23, the transition sleeve 21 is arranged in the inner hole of the outer sleeve 1 in a matching way, a first matching surface 24 formed by the transition sleeve 21 and the outer sleeve 1 forms an included angle of 30' -1 degrees with the axis of the mold, the working sleeve 22 and the base 23 are arranged in the inner hole of the transition sleeve 21 in a matching way, a second matching surface 25 formed by the working sleeve and the base and the transition sleeve forms an included angle of 3-6 degrees with the axis of the mold, and preferably an inclined angle of 4 degrees is used, the structure can be seen from outside to inside, the matching angle is gradually increased, and the interference force and the wrapping force are increased by changing the inclined angle of the matching surfaces, so that the working sleeve and the base are more stable in the outer sleeve, effectively improving the service life of the molding assembly.

It should be noted that: in this scheme, optimize the detailed structure of base, work cover and transition cover, specifically do: the end face of one side, which is contacted with the working sleeve 22, of the base 23 is provided with an inclined face, an air groove 231 is formed between the inclined face and the end face of the bottom of the working sleeve 22, an air hole 211 penetrating through the transition sleeve is arranged at the position, which corresponds to the air groove 231, on the transition sleeve 21, the air hole 211 can be communicated with an exhaust hole on the outer sleeve, and therefore air flow generated in the impact process can be effectively exhausted along the air groove and the air hole, vibration is reduced, and the precision of workpiece forming is improved.

As shown in fig. 3, the bearing assembly is composed of a bearing block 3 and a threaded pad 4, the bearing block 3 is a cylindrical structure with a push hole inside, a step surface 31 is arranged on the outer peripheral surface of the cylindrical structure, the threaded pad 4 is arranged between the bearing block 3 and the outer sleeve 1, an external thread is arranged on the threaded pad 4, an internal thread is arranged in the outer sleeve 1, the threaded pad 4 is installed in an inner hole of the outer sleeve 1 in a threaded manner, one end of the threaded pad 4 is in contact with the step surface 31, the other end of the threaded pad 4 is flush with or lower than the end surface of the outer sleeve 1, one end of the bearing block 3 is tightly propped against the bottom surface of the molding assembly, the other end protrudes out of the end surface of the outer sleeve 1, namely the bearing block 3 protrudes out of the end surface of the outer sleeve 1, the structure can take the protruding part of the bearing block as a main stress surface and directly contacts with a transmission part of the equipment, so that the stress of the outer shell and the threaded pad is effectively reduced, under the condition that the shell and the thread pad are not stressed, the service life of the combined die can be greatly prolonged.

In this scheme, the one end that the screw pad 4 is close to the shaping subassembly have a spacing groove 41, screw pad 4 when installing the hole of overcoat 1 and knob to the bottom, the spacing groove 41 on the screw pad with step face 31 in close contact with.

In this scheme, the ejecting subassembly comprises ejector pin 5, heelpiece 6 and piston rod 7, ejector pin 5, heelpiece 6 and piston rod 7 connect gradually, and actuating mechanism output power on the cold heading machine to drive ejector pin 5 through piston rod 7 and heelpiece 6 and remove, realize the purpose that the ejector pin is with the ejecting shaping chamber of work piece after the shaping.

In the scheme, a damping groove 12 is also arranged between the inner surface of the outer sleeve 1 and the forming component 2.

In this embodiment, in order to prolong the service life of the formed inner core, the working sleeve 22 may be made of a hard alloy material.

In the scheme, the peripheral surface of the outer sleeve 1 is provided with a plurality of axially distributed air guide grooves, and the spacing distance between any two adjacent air guide grooves is equal.

In the scheme, in order to facilitate the installation of the combined punch assembly on the machine tool, a positioning groove 11 can be further arranged on the outer peripheral surface of the outer sleeve 1, and the inclined surface of the positioning groove 11 forms an included angle of 10-20 degrees with the axis of the outer sleeve 1.

In addition, in this scheme, the material of overcoat 1, transition cover 21, base 23 and carrier block 3 is not restricted, and under the condition that the mould bulk strength satisfies, the material of above-mentioned part can be rationally selected according to the understanding to above-mentioned technical scheme to the technical staff in this field.

It should be noted that, although the present invention has been described with reference to the above embodiments, the present invention may have other embodiments. Various modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention, and it is intended that all such modifications and changes fall within the scope of the appended claims and their equivalents.

Claims (8)

1. The utility model provides a modular mold for shaping roller, is including the overcoat that has an inner hole be equipped with in the inner hole of overcoat and be used for supporting the fashioned shaping subassembly of roller the carrier assembly of shaping subassembly, the shaping subassembly has a die cavity and the through-hole that communicates this die cavity, carrier assembly has one and pushes out the hole be equipped with the subassembly that pushes out that is used for pushing out the fashioned work piece into die cavity in pushing out the hole, its characterized in that: the shaping subassembly constitute by work cover, setting base and the transition cover in the work cover bottom, the cooperation of transition cover install in the hole of overcoat, work cover and base cooperation are installed in the hole of transition cover, wherein the fitting surface of transition cover and overcoat is less than the fitting surface of work cover and base and transition cover and the contained angle of axis with the contained angle of axis, a inclined plane has on a side end face of base and work cover contact, forms the gas pocket between the bottom terminal surface of this inclined plane and work cover the position of corresponding with the gas pocket on the transition cover is equipped with the gas pocket that runs through the transition cover.

2. A modular mold for molding a roller as set forth in claim 1, wherein: the pushing assembly is composed of a pushing rod, a bottom pad and a piston rod, the pushing rod, the bottom pad and the piston rod are sequentially connected, and a driving mechanism on the cold header outputs power and transmits the power to the piston rod.

3. A modular mold for molding a roller as set forth in claim 1, wherein: the included angle between the matching surface of the transition sleeve and the outer sleeve and the axis is 30' -1 DEG, and the included angle between the matching surface of the working sleeve and the base and the transition sleeve and the axis is 3-6 deg.

4. A modular mold for molding rollers as claimed in claim 3, wherein: the working sleeve and the matching surfaces of the base and the transition sleeve form an included angle of 4 degrees with the axis.

5. A modular mold for molding a roller as set forth in claim 1, wherein: and a damping groove is also arranged between the inner surface of the outer sleeve and the forming component.

6. A modular mold for molding a roller as set forth in claim 1, wherein: the working sleeve is made of hard alloy materials.

7. A modular mold for molding a roller as set forth in claim 1, wherein: the outer peripheral surface of the outer sleeve is provided with a plurality of air guide grooves distributed along the axial direction.

8. A modular mold for molding a roller as set forth in claim 1, wherein: and the peripheral surface of the outer sleeve is also provided with a positioning groove.

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