CN212945211U

CN212945211U - Gear manufacturing die

Info

Publication number: CN212945211U
Application number: CN202021146009.0U
Authority: CN
Inventors: 李大杰
Original assignee: Gangqi Metal Technology Shanghai Co ltd
Current assignee: Gangqi Metal Technology Shanghai Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-04-13
Anticipated expiration: 2030-06-19

Abstract

The utility model relates to the technical field of gear manufacturing, in particular to a gear manufacturing mold, which comprises a device body and a mold cavity assembly, wherein the mold cavity assembly comprises a lower mold for molding a gear, the lower mold is provided with a mold cavity for molding the gear, the outer wall of the lower mold is positioned at the bottom and is provided with a first boss, the first boss protrudes towards the outer side of the outer wall of the lower mold, the outer wall of the lower mold is sleeved with a first bearing, and the lower surface of the lower mold is contacted with the first boss; a bearing seat is arranged below the lower die, a second boss is arranged on the edge of the upper surface of the lower die, a third boss is arranged in the center of the bearing seat, a first recess is formed between the second boss and the third boss, a second bearing is embedded in the first recess, a fourth boss is arranged on the third boss, a through hole is axially formed between the fourth boss and the center of the third boss, the lower die is sleeved on the fourth boss, and the first boss and the second bearing are mutually attached; a push rod is arranged below the bearing seat, and the top end of the push rod is positioned in the cavity of the lower die after the push rod penetrates through the bearing seat. The utility model provides high gear manufacturing output, and the smooth high efficiency of drawing of patterns process.

Description

Gear manufacturing die

Technical Field

The utility model relates to a gear manufacturing technical field, concretely relates to gear manufacturing mould.

Background

The gear is an important component in a mechanical transmission device and mainly plays a role in transmitting moment and bearing loads such as bending and impact. The helical gear is a common gear with a tooth surface arranged in an inclined manner, and the helical gear is smooth in torque transmission, high in efficiency and wide in use. However, the traditional helical gear manufacturing method generally adopts a metal processing and casting method to manufacture and mold, and the processing precision and the manufacturing speed of the helical gear basically depend on the skill level and the technical level of workers, so that the production efficiency cannot be effectively improved. Moreover, the traditional manufacturing process has complex processing steps, depends on a plurality of sets of processing tools and equipment, and cannot effectively control the production flow, thereby consuming a large amount of material resources and manpower in the aspects of production fields, production line length and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gear manufacturing mould, technical problem more than solving.

The utility model provides a technical problem can adopt following technical scheme to realize:

a gear manufacturing mold comprises a device body, wherein the device body comprises a mold cavity assembly, the mold cavity assembly comprises a lower mold for molding a gear, the lower mold is provided with a cavity for molding the gear, a first boss is arranged at the bottom of the outer wall of the lower mold and protrudes towards the outer side of the outer wall of the lower mold, a first bearing is sleeved on the outer wall of the lower mold, the first bearing is a radial bearing, and the lower surface of the first bearing is in contact with the first boss;

a bearing seat is arranged below the lower die, a second boss which protrudes upwards is arranged on the edge of the upper surface of the bearing seat, the second boss is in an annular boss structure, a third boss which protrudes upwards is arranged at the center of the bearing seat, a first recess is formed between the second boss and the third boss at a certain distance, a second bearing is embedded in the first recess, the second bearing is an axial bearing, the third boss is provided with a fourth boss, the centers of the third boss and the fourth boss are provided with through holes along the axial direction, the through hole penetrates through the upper surface of the fourth boss and the lower surface of the bearing seat, the lower die is sleeved on the fourth boss, the lower surface of the first boss on the lower die is mutually attached to the upper surface of the second bearing, and the lower die freely rotates through the first bearing and the second bearing;

a push rod is arranged below the bearing seat, the top end of the push rod is positioned in the cavity of the lower die after the push rod penetrates through the lower surface of the bearing seat from bottom to top, and the lower die rotates under the action of the first bearing and the second bearing when the push rod is pushed from bottom to top, so that a gear product positioned in the cavity is produced.

And a fifth boss is arranged on the fourth boss, so that the center of the gear is shaped.

The protruding structure of fifth boss is equipped with two at least second sunken, and it is slight deformation to the center to make the fifth boss through setting up the second sunken, the drawing of patterns of being convenient for.

Preferably, the second recesses on the protruding structure of the fifth boss are arranged in groups, and the same group includes two second recesses arranged in central symmetry.

The push rod is connected with a base downwards, a through hole convenient for the push rod to pass through is formed in the base, after the push rod passes through the base, the lower end of the push rod is fixed on the base, and the base drives the push rod to push forwards during demolding.

The push rod is internally provided with an inner cavity, a guide rod penetrates into the inner cavity of the push rod, the length of the guide rod is larger than that of the push rod, and the push rod is pushed to move along the direction of the guide rod by the guide rod.

Has the advantages that: due to the adoption of the technical scheme, the utility model discloses a quick shaping gear body of die forging mode can the shaping finished product through simple deburring, has improved gear manufacturing output greatly, and the drawing of patterns process passes through the product in the push rod promotes the die cavity, and the cooperation is through first, the second bearing restriction and have the lower mould of rotation function, makes the smooth high efficiency of drawing of patterns process.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an assembled view of FIG. 1;

fig. 3 is a schematic structural view of a lower die of the present invention;

fig. 4 is a schematic structural diagram of the bearing seat of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.

Referring to fig. 1, 2, 3 and 4, the gear manufacturing mold comprises a device body, wherein the device body comprises a mold cavity assembly, the mold cavity assembly comprises a lower mold 1 for molding a gear, the lower mold 1 is provided with a mold cavity for molding the gear, a first boss 101 is arranged at the bottom of the outer wall of the lower mold 1, the first boss 101 protrudes towards the outer side of the outer wall of the lower mold 1, the outer wall of the lower mold 1 is sleeved with a first bearing 2, the first bearing 2 is a radial bearing, and the lower surface of the first bearing 2 is in contact with the first boss 101; a bearing seat 3 is arranged below the lower die 1, a second boss 301 protruding upwards is arranged at the edge of the upper surface of the bearing seat 3, the second boss 301 is of an annular boss structure, a third boss 302 protruding upwards is arranged at the center of the bearing seat 3, a first recess 303 is formed between the second boss 301 and the third boss 302 at a certain interval, a second bearing 4 is embedded in the first recess 303, the second bearing 4 is an axial bearing, a fourth boss 304 is arranged on the third boss 302, through holes are axially formed in the centers of the third boss 302 and the fourth boss 304 and penetrate through the upper surface of the fourth boss 304 and the lower surface of the bearing seat 3, the lower die 1 is sleeved on the fourth boss 304, the lower surface of a first boss 101 on the lower die 1 is mutually attached to the upper surface of the second bearing 4, and the lower die is enabled to freely rotate through the first bearing 2 and the second bearing 4; a push rod 5 is arranged below the bearing seat 3, the top end of the push rod 5 is positioned in the cavity of the lower die 1 after the push rod 5 penetrates through the lower surface of the bearing seat 3 from bottom to top, and the lower die 1 rotates under the action of the first bearing 2 and the second bearing 4 when the push rod 5 is pushed from bottom to top, so that a gear product positioned in the cavity is produced.

It should be noted that the mold cavity assembly further includes an upper mold matched with the lower mold, the upper mold is in a cover plate shape, the structure of the upper mold is not shown in the attached drawings, and the upper mold only covers the lower mold in the gear molding process to flatten the end face of the gear. The gear face is a flat face on two sides of the gear face, and teeth are arranged on the gear face.

In some embodiments, a fifth boss 305 is also provided on the fourth boss 304 to shape the center of the gear.

In some embodiments, at least two second recesses 306 may be disposed on the protruding structure of the fifth boss 305, and the second recesses 306 may be disposed to slightly deform the fifth boss 305 toward the center, so as to facilitate demolding.

In some preferred embodiments, the second recesses 306 on the convex structure of the fifth boss 305 are arranged in groups, and the same group includes two second recesses 306 arranged in central symmetry.

In some embodiments, the push rod 5 is connected to the base 6 downward, the base 6 is provided with a through hole for the push rod 5 to pass through, after the push rod 5 passes through the base 6, the lower end of the push rod 5 is fixed on the base 6, and the base 6 drives the push rod 5 to push forward during demolding.

In some embodiments, the push rod 5 is provided with a cavity, the cavity penetrates into the guide rod 7, the length of the guide rod 7 is larger than that of the push rod 5, and the push rod 5 is pushed along the direction of the guide rod 7.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A gear manufacturing mold comprises a device body and is characterized in that the device body comprises a mold cavity assembly, the mold cavity assembly comprises a lower mold for molding a gear, the lower mold is provided with a cavity for molding the gear, a first boss is arranged at the bottom of the outer wall of the lower mold and protrudes towards the outer side of the outer wall of the lower mold, a first bearing is sleeved on the outer wall of the lower mold and is a radial bearing, and the lower surface of the first bearing is in contact with the first boss;

a bearing seat is arranged below the lower die, a second boss protruding upwards is arranged at the edge of the upper surface of the bearing seat, the second boss is of an annular boss structure, a third boss protruding upwards is arranged at the center of the bearing seat, a first recess is formed between the second boss and the third boss at a certain interval, a second bearing is embedded in the first recess, the second bearing is an axial bearing, a fourth boss is arranged on the third boss, through holes are axially formed in the centers of the third boss and the fourth boss and penetrate through the upper surface of the fourth boss and the lower surface of the bearing seat, the lower die is sleeved on the fourth boss, and the lower surface of the first boss on the lower die is attached to the upper surface of the second bearing;

and a push rod is arranged below the bearing seat, and the top end of the push rod is positioned in the cavity of the lower die after the push rod penetrates through the lower surface of the bearing seat from bottom to top.

2. The mold for manufacturing a gear according to claim 1, wherein a fifth boss is provided on the fourth boss.

3. The mold for manufacturing a gear according to claim 2, wherein the protruding structure of the fifth boss is provided with at least two second recesses.

4. The mold for manufacturing a gear according to claim 3, wherein the second recesses of the convex structure of the fifth boss are arranged in groups, and the same group comprises two centrosymmetrically arranged second recesses.

5. The mold for manufacturing a gear according to any one of claims 1 to 4, wherein the push rod is downwardly connected to a base, the base is provided with a through hole for the push rod to pass through, and after the push rod passes through the base, the lower end of the push rod is fixed to the base.

6. The mold for manufacturing a gear according to claim 5, wherein the push rod has an inner cavity, and a guide rod penetrates into the inner cavity of the push rod, and the length of the guide rod is greater than that of the push rod.