CN210702044U

CN210702044U - Straight tooth extrusion forming device with protective structure

Info

Publication number: CN210702044U
Application number: CN201921117269.2U
Authority: CN
Inventors: ***
Original assignee: Mianyang Runcheng Machinery Manufacturing Co Ltd
Current assignee: Mianyang Runcheng Machinery Manufacturing Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-06-09
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a straight-tooth extrusion forming device with a protective structure, which comprises a female die and a workpiece, wherein an alloy inner ring is arranged in the female die, a die cavity is arranged in the alloy inner ring, the inner wall of the alloy inner ring, which is positioned in the die cavity, is provided with a gear forming groove, the workpiece is arranged in the gear forming groove of the die cavity during extrusion, a protective die core is arranged at the lower part of the die cavity in a penetrating way, the gear forming groove is arranged at the inner wall of the die cavity, which is positioned above the protective die core, the central position of the protective die core is provided with an ejection through hole for the ejector to pass through, the ejector is positioned below the female die, the utility model discloses a protective die core is arranged at the lower part of the die cavity of the female die in a penetrating way, when a punch head drives a male die to punch downwards, the workpiece is extruded into the die cavity to form a, the straightness of the tooth direction, the consistency of the tooth form and the tooth surface smoothness can be improved.

Description

Straight tooth extrusion forming device with protective structure

Technical Field

The utility model relates to a gear machining technical field specifically is a straight-tooth extrusion device with protective structure.

Background

Gears are mechanical elements with teeth on the rim which can continuously mesh to transmit motion and power, and are mechanical parts with teeth which can mesh with each other, and the application of the gears in transmission has long appeared. At the end of the 19 th century, the principle of generating the cutting method and the special machine tool and cutter for cutting teeth by using the principle appear successively, along with the development of production, the stability of gear operation is emphasized, the shape of gear teeth or tooth profiles is divided into straight teeth, helical teeth, herringbone teeth or straight teeth and curved teeth, and the straight teeth gear is one of the most common gears in actual production and use.

However, the conventional straight-tooth extrusion molding apparatus has the following disadvantages: the straight-tooth gear generally adopts the mode of cold extrusion in the course of working, and the inside gear shaping groove that only generally has of current straight-tooth cold pressing die does not have protective structure, when the punching press, can't provide holding power for the work piece, not only makes straight-tooth cold pressing die life-span short, and the straightness accuracy of the gear that the processing was handled, profile of tooth uniformity and flank of tooth smooth finish are all relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a straight-tooth extrusion device with protective structure to solve among the above-mentioned background art straight-tooth gear and generally adopt cold extruded mode in the course of working, current straight-tooth cold pressing die is inside generally only to have a gear shaping groove, does not have protective structure, when the punching press, can't provide holding power for the work piece, not only makes straight-tooth cold pressing die life-span short, and the straightness accuracy of the gear of processing out, profile of tooth uniformity and flank of tooth smooth finish all relatively poor problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a straight-tooth extrusion device with protective structure, includes die and work piece, be equipped with the alloy inner ring in the die, and be equipped with the die cavity in the alloy inner ring, and the alloy inner ring is located the inner wall of die cavity and has seted up gear shaping groove, arrange the gear shaping inslot of die cavity in during the work piece extrusion, the protection mold core is worn to be equipped with in the die cavity lower part, gear shaping groove sets up the inner wall that is located protection mold core top at the die cavity, the central point of protection mold core puts and is equipped with the ejecting through-hole that is used for the liftout ware to pass, the liftout ware is located the below of die, and the shape and size phase-match of liftout ware and ejecting through-hole, the liftout ware gets into can ejecting work piece in the die cavity of die, the die top is equipped with the terrace die, and the.

Preferably, a through hole is arranged below the ejection through hole of the protective mold core, and the through hole is matched with the ejection through hole.

Preferably, the ejector is arranged below the operating platform, and the ejector penetrates through the operating platform when ejecting the workpiece.

Preferably, a fixed bracket is mounted on the surface of the operating platform.

Preferably, the punch head is mounted on a fixed support.

Preferably, the diameter of the ejection through hole is smaller than that of the workpiece.

The utility model provides a straight-tooth extrusion device with protective structure possesses following beneficial effect:

the utility model discloses a wear to be equipped with the protection mold core in the die cavity lower part of die, and be equipped with the ejecting through-hole that is used for the liftout ware to pass in the protection mold core, and set up the diameter of ejecting through-hole to the diameter that is less than the work piece, when the punching press head drives the terrace die and punches downwards, the work piece extrudees to the die cavity in, it becomes straight-tooth gear to punch under the effect in gear shaping groove, during the extrusion, the protection mold core forms the rigidity to the work piece and supports, the life of die is improved, and under the guard action of protection mold core, can improve the straightness accuracy of dentition, the uniformity and the flank of tooth.

Drawings

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

FIG. 2 is a schematic view of the structure of the female mold of the present invention;

fig. 3 is a top view of the present invention.

In the figure: 1. a female die; 2. an alloy inner ring; 3. protecting the mold core; 4. ejecting out the through hole; 5. a mold cavity; 6. a workpiece; 7. a gear forming groove; 8. fixing a bracket; 9. a male die; 10. a material ejector; 11. a through hole; 12. an operation table; 13. and (5) stamping the head.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution: a straight tooth extrusion forming device with a protection structure comprises a female die 1 and a workpiece 6, wherein an alloy inner ring 2 is arranged in the female die 1, a die cavity 5 is arranged in the alloy inner ring 2, the inner wall of the alloy inner ring 2, which is located in the die cavity 5, is provided with a gear forming groove 7, the workpiece 6 is arranged in the gear forming groove 7 of the die cavity 5 during extrusion, a protection die core 3 is arranged on the lower portion of the die cavity 5 in a penetrating manner, the gear forming groove 7 is arranged on the inner wall of the die cavity 5, which is located above the protection die core 3, the central position of the protection die core 3 is provided with an ejection through hole 4 for an ejector 10 to pass through, the ejector 10 is located below the female die 1, the ejector 10 is matched with the shape and size of the ejection through hole 4, the ejector 10 enters the die cavity 5 of the female die 1 and can eject the workpiece 6, the upper portion of the female die 1, the positions of the female die 1 and the male die 9 correspond, and the female die 1 is arranged on an operating platform 12.

The operating platform 12 is positioned below the ejection through hole 4 of the protective mold core 3, and a through hole 11 is arranged below the ejection through hole 4, and the through hole 11 is matched with the ejection through hole 4; the ejector 10 is arranged below the operating platform 12, the ejector 10 penetrates through the operating platform 12 when ejecting the workpiece 6, the ejector 10 penetrates through the through hole 11 of the operating platform 12 and then penetrates through the ejection through hole 4 of the protective mold core 3, and then the workpiece 6 is ejected; a fixed support 8 is arranged on the surface of the operating platform 12, and a stamping head 13 is arranged above the female die 1 by utilizing the fixed support 8; the stamping head 13 is arranged on the fixed support 8, the stamping head 13 is arranged on the fixed support 8 by utilizing the stamping head 13 to provide stamping force, and the stable operation of the stamping head 13 can be ensured; the diameter of the knockout through hole 4 is smaller than that of the workpiece 6, so that a supporting force is provided for the workpiece 6 at the time of punching.

It should be noted that, in the straight tooth extrusion molding device with the protection structure, when in work, as the protection mold core 3 is arranged at the lower part of the mold cavity 5 of the female mold 1 in a penetrating way, the ejection through hole 4 for the ejector 10 to pass through is arranged in the protection mold core 3, and the diameter of the ejection through hole 4 is set to be smaller than that of the workpiece 6, when in use, a metal blank to be processed is placed above the mold cavity 5 of the female mold 1, the stamping head 13 is started to drive the male mold 9 at the bottom end of the stamping head 13 to stamp towards the female mold 1, the metal blank is extruded into the gear molding groove 7 of the mold cavity 5 of the female mold 1, the workpiece 6 is stamped into a gear under the limiting action of the gear molding groove 7, when the workpiece 6 is extruded into the mold cavity 5 in the stamping process, the protection mold core 3 at the lower part of the mold cavity 5 forms a rigid support for the, the supporting force provided for the workpiece 6 during extrusion can improve the straightness of the tooth direction, the consistency of the tooth shape and the tooth surface smoothness; after the punching is finished, the ejector 10 is started, the ejector 10 penetrates through the through hole 11 of the operating platform 12, enters the ejection through hole 4 of the protective mold core 3 of the female mold 1, and penetrates out of the ejection through hole 4, so that the workpiece 6 is ejected out of the female mold 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a straight-tooth extrusion device with protective structure, includes die (1) and work piece (6), its characterized in that: an alloy inner ring (2) is arranged in the female die (1), a die cavity (5) is arranged in the alloy inner ring (2), the alloy inner ring (2) is positioned on the inner wall of the die cavity (5) and provided with a gear forming groove (7), a workpiece (6) is arranged in the gear forming groove (7) of the die cavity (5) during extrusion, a protective die core (3) is arranged at the lower part of the die cavity (5) in a penetrating manner, the gear forming groove (7) is arranged on the inner wall of the die cavity (5) above the protective die core (3), an ejection through hole (4) for the ejector (10) to pass through is arranged at the central position of the protective die core (3), the ejector (10) is positioned below the female die (1), the ejector (10) is matched with the ejection through hole (4) in shape and size, the ejector (10) enters the die cavity (5) of the female die (1) and can eject the workpiece (6), the stamping die is characterized in that a male die (9) is arranged above the female die (1), the top end of the male die (9) is connected with a stamping head (13), the positions of the female die (1) and the male die (9) are corresponding, and the female die (1) is installed on an operating platform (12).

2. A straight tooth extrusion forming apparatus having a guard structure as set forth in claim 1, wherein: the operating platform (12) is arranged below the ejection through hole (4) of the protective mold core (3), a through hole (11) is formed in the lower portion of the ejection through hole, and the through hole (11) is matched with the ejection through hole (4).

3. A straight tooth extrusion forming apparatus having a guard structure as set forth in claim 1, wherein: the ejector (10) is arranged below the operating platform (12), and the ejector (10) penetrates through the operating platform (12) when ejecting the workpiece (6).

4. A straight tooth extrusion forming apparatus having a guard structure as set forth in claim 1, wherein: and a fixed bracket (8) is arranged on the surface of the operating platform (12).

5. A straight tooth extrusion forming apparatus having a guard structure as set forth in claim 1, wherein: the stamping head (13) is arranged on the fixed support (8).

6. A straight tooth extrusion forming apparatus having a guard structure as set forth in claim 1, wherein: the diameter of the ejection through hole (4) is smaller than that of the workpiece (6).