CN218050141U - Initiative tridentate mold processing - Google Patents

Abstract

The utility model relates to the field of gear machining equipment, concretely relates to initiative trigeminy tooth mold processing, including forging module and punching press module, extrude from the boss end during forging, through forging the middle part of terrace die pressurization forging earlier, through mechanics conduction make the metal plastic deformation of bottom awl tooth end and get into and forge the profile of tooth circle of die sinking membrane, then the shaping boss, the flow direction of metal has current order, therefore the metal can fully fill the tooth top; the forging die set is used for forging the tooth shape, and the stamping die set is used for processing the shaft hole, so that the influence of internal stress on the processing precision can be reduced by processing stage by stage; the lower forging female die consists of a lower forging die sleeve, a lower forging tooth die and a lower forging die core, and is convenient to arrange a flash groove at the joint, the flash groove is used for accommodating redundant metal after the tooth tops are full of, so that the forging piece is in an open die forging state, the deformation force is reduced, and the flash groove is located at the sharp corner position of the tooth shape, so that the metal flows towards the sharp corner position of the tooth tops in a plastic mode, and the tooth tops are full of.

Description

Initiative tridentate mold processing

Technical Field

The utility model relates to a gear machining equipment field, specificly relate to an initiative tridentate mold processing.

Background

The driving triple gear is a transmission part of an automobile and used for power transmission, plays an important role in a transmission system and has high requirements on the processing precision and quality of the driving triple gear. The existing active triple gear processing die and the process have the following problems: in the traditional forging mode and the die, extrusion forging is carried out from the conical tooth end, the conical tooth end and the lug boss end are synchronously formed in the forging process, and the metal flow direction of a forging piece simultaneously flows upwards and downwards, so that insufficient tooth top metal filling is easily caused; in addition, the machining of the parts is often carried out in stages, and multiple machining operations are required to obtain high machining quality. Casting or forging often have internal stress or balanced internal stress, and after cutting process, the part internal stress balance is broken, and the part can produce to warp and influence the machining precision, and the unable processing gear that has the shaft hole of current initiative tridentate processing mould, the utility model discloses a forge the module and forge the profile of tooth, through punching press module processing shaft hole, the processing can reduce the influence of internal stress to the machining precision stage by stage, in view of this, the present case produces from this.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an initiative trigeminy tooth mold processing to solve the problem that provides in the background art.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an initiative tridentate mold processing which characterized in that: including forging module and punching press module, it includes forging the terrace die, forges die and ejector pin down to forge the module, forge the die core down including forging die sleeve, forging die and forging die core down, forge the top that the terrace die is located forging die down, the forging place in the forging die, the one end of initiative trigeminy tooth that initiative trigeminy tooth mold processing is fashioned is equipped with the boss, one end is equipped with the awl tooth, the centre is equipped with the shaft hole, the punching press module includes punching press post, punching press upper die base and punching press die holder, the forging place in the punching press die holder, punching press upper die base is located punching press die holder top, the punching press post is located the center of punching press upper die base and punching press die holder.

Preferably, the forging die set further comprises a forging upper die sleeve, and the forging upper die sleeve is arranged outside the forging upper die sleeve.

Preferably, the center of the bottom of the forging upper male die is provided with an extrusion rod, the periphery of the forging upper male die is provided with a limiting ring, and an annular groove for forming the driving triple gear boss is formed between the extrusion rod and the limiting ring.

Preferably, the upper part of the extrusion rod is a circular truncated cone, and the lower part of the extrusion rod is a cylinder.

Preferably, the forging lower die sleeve is positioned above the forging lower tooth die, the forging lower die core is positioned at the center of the forging lower tooth die, the forging lower die sleeve, the forging lower tooth die and the forging lower die core are internally connected to form a molded surface for forming the bottom of the driving triple bevel gear, a tooth-shaped ring for forming the driving triple bevel gear is arranged on the forging lower tooth die, and the ejector rod is positioned at the center of the forging lower die core.

Preferably, the flash grooves are formed between the forging lower die sleeve and the forging lower tooth die and between the forging lower tooth die and the forging lower die core.

Preferably, the flash groove is positioned at two sharp corners of the top of the gear.

Preferably, the shape of the bottom of the stamping upper die base is matched with the shape of the top of the forging.

Preferably, the center of the stamping upper die base is provided with a stamping through hole for the stamping column to pass through.

Preferably, the inner shape of the stamping lower die base is matched with the bottom shape of the forge piece, and the center of the stamping lower die base is provided with a residual material through hole for passing through stamping metal residual materials.

According to the above description, the utility model provides an initiative trigeminy tooth mold processing has following beneficial effect: extruding from the boss end during forging, firstly, pressing the middle part of a forge piece by forging an upper male die, plastically deforming metal at the bottom bevel end by mechanical conduction and entering a tooth-shaped ring of a forged lower concave film, and then forming the boss, wherein the flow direction of the metal has the existing sequence, so that the metal can fully fill the tooth top; the forging die set is used for forging the tooth shape, and the stamping die set is used for processing the shaft hole, so that the influence of internal stress on the processing precision can be reduced by processing stage by stage; the lower forging female die consists of a lower forging die sleeve, a lower forging tooth die and a lower forging die core, a flash groove is conveniently arranged at the joint and used for accommodating redundant metal after the tooth crest is full of, so that the forging piece is in an open die forging state, the deformation force is reduced, the flash groove is located at the sharp corner position of the tooth form, the metal flows towards the sharp corner position of the tooth crest in a plastic mode, and the tooth crest is full of.

Drawings

FIG. 1 is a schematic diagram of a forging die set.

Fig. 2 is a schematic structural diagram of the stamping die set.

FIG. 3 is a schematic diagram of a process for forging the driving triple gear.

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 is further described below with reference to the following embodiments.

Fig. 1 is a schematic structural diagram of a forging module, where the right half is a schematic diagram before forging, the left half is a schematic diagram after forging, fig. 2 is a schematic structural diagram of a stamping module, where the right half is a schematic diagram before stamping, and the left half is a schematic diagram after stamping, and fig. 3 is a schematic structural diagram of an active triple tooth forging flow, where a is a forging blank, b is a forging after forging the forging module, and c is a forging after stamping the stamping module, which is a final-formed active triple tooth. The utility model discloses initiative trigeminy tooth mold processing, including forging module (like fig. 1) and punching press module (like fig. 2), it is including forging terrace die 1 to forge the module, die and ejector pin 2 down forge lower die, forge lower die including forging die sleeve 3, forge lower tooth mould 4 and forge lower mold core 5, forge terrace die 1 and be located the top of forging lower die, forging lower die that forging 100 placed in, the one end of initiative trigeminy tooth that initiative trigeminy tooth mold processing made is equipped with boss 201, one end is equipped with awl tooth 202, the centre is equipped with 203, as shown in fig. 2, punching press module includes punching press post 6, punching press upper die base 7 and punching press die holder 8, forging 100 is placed in punching press die holder 8, punching press upper die base 7 is located 8 tops of punching press die holder, punching press post 6 is located punching press upper die base 7 and 8 centers of punching press die holder. The traditional forging mode carries out extrusion forging from the awl tooth end, and the awl tooth end and the synchronous shaping of boss end in the forged process, the metal flow direction of forging 100 upwards flows simultaneously and downwards, causes the tooth top metal to fill inadequately easily, the utility model discloses in, extrude from the boss end during forging, through forging the middle part of terrace die 1 pressurization forging 100 earlier, make the metal plastic deformation of bottom awl tooth end and get into and forge in the profile of tooth circle 41 of die down through mechanics conduction, then re-shaping boss 201, the flow direction of metal has precedence order, therefore the metal can fully fill the tooth top; the part machining is usually carried out in stages, and high machining quality can be obtained only by machining for multiple times. Casting or forging 100 often have internal stress or balanced internal stress, and after cutting process, the part internal stress balance is broken, and the part can produce and warp and influence the machining precision, and the unable processing gear that has the shaft hole of current initiative tridentate mold processing, the utility model discloses a forge the module and forge the profile of tooth, through punching press module processing shaft hole, the processing can reduce the influence of internal stress to the machining precision stage by stage.

The forging module further comprises a forging upper die sleeve 9, and the forging upper die sleeve 9 is sleeved outside the forging upper male die 1.

The bottom center of forging terrace die 1 is equipped with the extrusion stem 11, the periphery is equipped with spacing ring 12, is equipped with the ring channel 13 that is used for shaping initiative trigeminy tooth boss 201 between extrusion stem 11 and the spacing ring 12.

The upper part of the extrusion rod 11 is a cone and the lower part is a cylinder. The diameter of the cylinder is smaller than or equal to that of the circular truncated cone, as shown in a in fig. 3, a circular ring is arranged at the top of a forging blank, a bulge is arranged at the center of the bottom, in the process that the forging 100 is extruded by the extrusion rod 11, the cylinder firstly enters the circular ring of the forging 100 to extrude the center of the forging 100, metal at the bottom is plastically deformed to form a conical tooth 202 through mechanical conduction, and then the circular truncated cone contacts the circular ring of the forging 100 to be processed into a boss 201 of the active triple teeth.

Forging die case 3 and being located the top of forging die 4 down, forging die core 5 is located the center of forging die 4 down, and forging die case 3, forging die core 4 down and forging die core 5 are inside to link up mutually and form the profile that is used for shaping initiative tridentate bottom down, are equipped with the profile ring 41 that is used for forming initiative tridentate awl tooth 202 on forging die 4 down, and ejector pin 2 is located the center of forging die core 5 down.

Flash grooves 10 are arranged between the forging lower die sleeve 3 and the forging lower tooth die 4 and between the forging lower tooth die 4 and the forging lower die core 5. The flash grooves 10 are located at two sharp corners of the tooth tips of the gear. The lower forging female die is composed of a lower forging die sleeve 3, a lower forging tooth die 4 and a lower forging die core 5, a burr groove 10 is conveniently formed in the joint, the burr groove 10 is used for containing redundant metal after the tooth tops are full, the forging piece 100 is in an open die forging state, deformation force is reduced, the burr groove 10 is located at the position of the sharp corner of the tooth shape, the metal flows towards the sharp corner of the tooth tops in a plastic mode, and the tooth tops are full.

The shape of the bottom of the stamping upper die base 7 is matched with the shape of the top of the forging 100. The center of the punching upper die base 7 is provided with a punching through hole 71 for the punching column 6 to pass through.

The internal shape of the stamping lower die holder 8 is matched with the shape of the bottom of the forging piece 100, and the center of the stamping lower die holder 8 is provided with a residual material through hole 81 for passing stamping metal residual materials.

The forged piece 100 enters a lower stamping die holder 8 of the stamping die set, the upper stamping die holder 7 fixes the top of the forged piece 100, the stamping column 6 moves downwards and enters a counter bore formed by previous forging, the counter bore further moves, and redundant metal in the center of the forged piece 100 is extruded from a redundant material through hole 81 in the center of the lower stamping die holder 8, so that the driving triple gear with the shaft hole is formed.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered limiting of the present invention, as these terms are not used in the present specification and are known in the art to which those skilled in the art will recognize.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses the model with electrical apparatus that provides in only supplies the reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

The aforesaid is only a plurality of concrete implementation manners of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (10)

1. The utility model provides an initiative tridentate mold processing which characterized in that: including forging module and punching press module, forge the module including forging the punch die, forging die and ejector pin down, forge down the die sleeve, forge down the matrix and forge the lower mold core including forging, forge the top that the punch die is located the die under forging, the forging place in the lower die cavity of forging, the one end of initiative trigeminy tooth that initiative trigeminy tooth mold processing formed's processing mould is equipped with the boss, one end is equipped with the awl tooth, the centre is equipped with the shaft hole, the punching press module includes punching press post, punching press upper die base and punching press die holder, the forging place in the punching press die holder, punching press upper die base is located punching press die holder top, the punching press post is located the center of punching press upper die base and punching press die holder.

2. The active triple tooth machining die of claim 1, wherein: the forging module further comprises a forging upper die sleeve, and the forging upper die sleeve is arranged outside the forging upper die.

3. The active triple tooth machining die of claim 1, wherein: the forging upper punch is characterized in that an extrusion rod is arranged at the center of the bottom of the forging upper punch, a limiting ring is arranged on the periphery of the forging upper punch, and an annular groove used for forming the driving triple-tooth boss is formed between the extrusion rod and the limiting ring.

4. The active triple toothing system of claim 3, characterized in that: the upper part of the extrusion rod is a cone, and the lower part of the extrusion rod is a cylinder.

5. The active triple tooth machining die of claim 1, wherein: the forging lower die sleeve is located above the forging lower tooth die, the forging lower die core is located at the center of the forging lower tooth die, the forging lower die sleeve, the forging lower tooth die and the forging lower die core are mutually connected to form a molded surface for forming the bottom of the driving triple bevel gear, a tooth-shaped ring for forming the driving triple bevel gear is arranged on the forging lower tooth die, and the ejector rod is located at the center of the forging lower die core.

6. The active triple toothing machining die of claim 1, characterized in that: and flash grooves are formed between the forging lower die sleeve and the forging lower tooth die and between the forging lower tooth die and the forging lower die core.

7. The active triple toothing system mold of claim 6, wherein: the flash groove is positioned at two sharp corners of the tooth top of the gear.

8. The active triple toothing machining die of claim 1, characterized in that: the shape of the bottom of the stamping upper die base is matched with the shape of the top of the forging.

9. The active triple tooth machining die of claim 1, wherein: and a stamping through hole for the stamping column to pass through is formed in the center of the stamping upper die base.

10. The active triple tooth machining die of claim 1, wherein: the inner shape of the stamping lower die base is matched with the shape of the bottom of the forge piece, and the center of the stamping lower die base is provided with a surplus material through hole for passing of stamping metal surplus materials.

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