CN211304638U

CN211304638U - Novel gear mold

Info

Publication number: CN211304638U
Application number: CN201922332461.XU
Authority: CN
Inventors: 徐文祥
Original assignee: Shenzhen Guangyufeng Rubber Co ltd
Current assignee: Shenzhen Guangyufeng Rubber Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-21
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a novel gear die, including upper punch and lower punch, and upper punch and lower punch are hollow tubular structure, are equipped with gliding shaft-like interior dashing of going up in the upper punch, are equipped with gliding shaft-like interior dashing down in the lower punch, wherein down the top of interior dashing under inside and shaft-like of punch is equipped with tooth model chamber, and in shaft-like interior dashing and shaft-like interior dashing down all stretched into to the inner chamber of lower punch in going up, the bottom center department of interior dashing is equipped with protruding stem on shaft-like, has the movable rod through reset spring connection in the recess. The utility model discloses quantity, simple structure, the mould structure of punching press pore-forming and one-tenth profile of tooth integration makes the gear pore-forming one time of warm forging mould become the profile of tooth, sets up the recess with protruding core post adaptation, makes in the shaft-like interior movable rod that can oppress downwards in the stamping process of dashing in going up to during making the bottom of in the shaft-like interior dashing get into the recess, can avoid in the shaft-like interior dashing appear the terminal surface uneven and lead to the unqualified condition of product after the punching press after using for a long time, improve the qualification rate of product.

Description

Novel gear mold

Technical Field

The utility model belongs to the technical field of the mould, concretely relates to novel gear mold.

Background

The existing gear mainly adopts a forging process, most of the existing gears have rough surfaces, secondary processing is needed after production and forming, the production efficiency of the gear is influenced, and the secondary processing has the conditions of low precision and large error.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel gear mold to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel gear die, includes upper punch and lower punch, and upper punch and lower punch are hollow tubular structure, and its structural feature lies in: be equipped with gliding shaft-like interior punching on in the upper punch, be equipped with gliding shaft-like interior punching under in the lower punch, wherein the top of interior punching is equipped with tooth model chamber under inside and the shaft-like interior punching of lower punch, and in shaft-like interior punching and the shaft-like interior punching of lower punch all stretched into to the inner chamber of lower punch, the bottom center department of interior punching is equipped with protruding stem post on the shaft-like, wherein the center department of the top surface of interior punching is equipped with the recess with protruding stem post adaptation under the shaft-like, and the external diameter of protruding stem post suits with the internal diameter of recess, there is the movable rod through reset spring connection in the recess, wherein the external diameter of movable rod suits with the internal diameter of recess, and the top surface of movable rod.

Preferably, the outer diameter of the male stem is adapted to the inner diameter of the gear shaft bore.

Compared with the prior art, the utility model discloses quantity, moreover, the steam generator is simple in structure, the gear surface that adopts the mould punching press to go out is more smooth, especially the mould structure of punching press pore-forming and the integration of profile of tooth makes the gear of warm forging mould once pore-forming profile of tooth, the top center department of interior dashing is equipped with the recess with the adaptation of interior dashing in shaft-like down, according to the thickness of gear, can be through the stroke distance of control shaft-like upper interior dashing, make shaft-like upper interior dashing can oppress interior movable rod downwards in the stamping process, and make the bottom of shaft-like upper interior dashing get into the recess, can avoid shaft-like upper interior dashing to appear after long-term use that the terminal surface is uneven and lead to the unqualified condition of product after the punching, improve the qualification rate of product, the structure of this application makes rough finish forging go on simultaneously, the material of base is used rationally, the improvement of machining precision, and a special hole forming process is not needed, so that raw materials are indirectly saved.

Drawings

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

in the figure: 1-upper punch, 2-lower punch, 3-rod-shaped upper inner punch, 4-rod-shaped lower inner punch, 5-tooth model cavity, 6-convex core column, 7-groove, 8-return spring and 9-movable rod.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, the present invention provides a technical solution, a novel gear mold, comprising an upper punch 1 and a lower punch 2, the upper punch 1 and the lower punch 2 are both hollow cylindrical structures, a sliding rod-shaped upper inner punch 3 is arranged in the upper punch 1, a sliding rod-shaped lower inner punch 4 is arranged in the lower punch 2, wherein a tooth model cavity 5 is arranged inside the lower punch 2 and at the top end of the rod-shaped lower inner punch 4, the rod-shaped upper inner punch 3 and the rod-shaped lower inner punch 4 both extend into the inner cavity of the lower punch 2, a convex core column 6 is arranged at the center of the bottom of the rod-shaped upper inner punch 3, wherein the center of the top surface of the rod-shaped lower inner punch 4 is provided with a groove 7 matched with the convex core column 6, the outer diameter of the convex core column 6 is matched with the inner diameter of the groove 7, the groove 7 is internally connected with a movable rod 9 through a return spring 8, wherein the outer diameter of the movable rod 9 is adapted to the inner diameter of the groove 7, and the top surface of the movable rod 9 is flush with the top surface of the rod-shaped lower inner punch 4.

In the present embodiment, the outer diameter of the protruding core column 6 is adapted to the inner diameter of the gear shaft hole.

The utility model has the advantages of the number, simple structure, the gear surface that adopts the mould punching press to go out is more smooth, especially the mould structure of punching press pore-forming and one-tenth profile integration makes the gear of warm forging mould once pore-forming become the profile, the top center department of interior dashing is equipped with the recess with the adaptation of interior dashing in shaft-like down, according to the thickness of gear, can make the interior movable rod of oppression can be downwards in the stamping process to shaft-like upper interior dashing through the stroke distance of control shaft-like upper interior dashing, and make the bottom of interior dashing in shaft-like upper enter the recess, can avoid the condition that the product after the punching press is unqualified because of the terminal surface unevenness appears after long-term use in shaft-like upper interior dashing, improve the qualification rate of product, the structure of this application makes rough finish forging go on simultaneously, the material of base is reasonable to use, the improvement of machining precision, the holistic quality of gear is better, indirectly saves raw materials.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel gear die, includes upper punch and lower punch, and upper punch and lower punch are hollow tubular structure, its characterized in that: the upper punch in be equipped with gliding shaft-like interior punching on, be equipped with gliding shaft-like interior punching under in the lower punch, wherein the top of interior punching is equipped with tooth model chamber under inside and the shaft-like interior punching of lower punch, and in shaft-like interior punching and the shaft-like interior punching all stretched into to the inner chamber that down, the shaft-like bottom center department of interior punching on be equipped with protruding stem, wherein the central department of the top surface of interior punching is equipped with the recess with protruding stem adaptation under the shaft-like, and the external diameter of protruding stem suits with the internal diameter of recess, the recess in be connected with the movable rod through reset spring, wherein the external diameter of movable rod suits with the internal diameter of recess, and the top surface of movable rod flushes with the top surface of interior punching under the shaft-like.

2. The novel gear mold of claim 1, wherein: the outer diameter of the convex core column is adapted to the inner diameter of the gear shaft hole.