CN214557076U - Hot forging die for counter shaft reverse gear - Google Patents
Hot forging die for counter shaft reverse gear Download PDFInfo
- Publication number
- CN214557076U CN214557076U CN202022949027.9U CN202022949027U CN214557076U CN 214557076 U CN214557076 U CN 214557076U CN 202022949027 U CN202022949027 U CN 202022949027U CN 214557076 U CN214557076 U CN 214557076U
- Authority
- CN
- China
- Prior art keywords
- die
- pressing plate
- upper die
- die base
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Forging (AREA)
Abstract
The utility model relates to a counter shaft reverse gear hot forging die, which comprises an upper die base, a lower die base and an ejector rod, wherein the middle of the lower bottom surface of the upper die base is connected with a high-end upper die insert of a forming gear wheel hub; the lower mould that the upper bottom surface intermediate junction of die holder has shaping gear wheel hub low end is inserted, and its upper bottom surface one end is equipped with the low groove, and one side joint that the lower mould was inserted has the holding down plate, and holding down plate one end be equipped with low groove complex arch, set up the through-hole that supplies the ejector pin to stretch into in the middle of the lower bottom surface of die holder. The part for forming the low end of the gear hub is arranged on the lower die insert, the part for forming the high end of the gear hub is arranged on the upper die insert, and the die drawing resistance of part of the upper die insert is offset by the dead weight of the gear forging, so that the gear forging tends to be balanced, and the deformation of the forging is facilitated; the upper die insert and the lower die insert are provided with grooves matched with the bulges of the pressing plate, so that the connection is firm.
Description
Technical Field
The utility model belongs to the technical field of the automobile gear forges technique and specifically relates to a jackshaft reverse gear hot forging die.
Background
The die forging process is an advanced process developed on the basis of a free forging process. The method comprises heating metal to make it have high plasticity, placing in forging die impression, applying pressure by forging equipment to make metal generate plastic deformation and fill impression, and obtaining die forging piece with required shape and meeting technical requirements. The reverse gear of the intermediate shaft is one of the most important parts in the mechanical transmission of the automobile, and is acted by bending moment, torque and impact during working, and is also acted by contact stress, impulse bending and friction force. When the gear is forged, the shape and the size precision of the gear are required to be ensured, the internal quality of the gear is also required to be ensured, and the mechanical property, particularly the thermal fatigue property and the abrasion resistance of the forged piece are improved. Such a process is difficult to achieve in practice due to fluctuations in the size of the casting volume and the size of the die cavity, so a reasonable die structure is required to ensure good forming of the forging.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides a hot forging die for a reverse gear of an intermediate shaft.
The utility model provides a technical scheme that its technical problem adopted is: a hot forging die for a reverse gear of an intermediate shaft comprises an upper die holder, a lower die holder and an ejector rod, wherein an upper die insert at the high end of a formed gear hub is connected in the middle of the lower bottom surface of the upper die holder, an upper groove is formed in one end of the lower bottom surface of the upper die insert, an upper pressing plate is clamped on one side of the upper die insert, and a protrusion matched with the upper groove is formed in one end of the upper pressing plate; the middle of the upper bottom surface of the lower die base is connected with a lower die insert at the lower end of a formed gear hub, a lower groove is formed in one end of the upper bottom surface of the lower die base, a lower pressing plate is clamped and connected to one side of the lower die insert, a protrusion matched with the lower groove is formed in one end of the lower pressing plate, and a through hole for a mandril to extend into is formed in the middle of the lower bottom surface of the lower die base.
The part for forming the low end of the gear hub is arranged on the lower die insert, the part for forming the high end of the gear hub is arranged on the upper die insert, and the die drawing resistance of part of the upper die insert can be offset by the dead weight of the gear forging, so that the gear forging tends to be balanced, and the deformation of the forging is facilitated; the upper die insert and the lower die insert are provided with grooves matched with the bulges of the pressing plate, so that the connection is firm, and the integral stability is ensured.
In order to ensure that the upper and lower pressing plates effectively press the upper and lower die inserts and further limit, the side wall of the upper die base is provided with an inwards concave step structure, one end of the upper pressing plate is provided with an outwards convex step structure matched with the inwards concave step structure, and the upper pressing plate is positioned on the upper die base through a pin and is fixedly connected through a screw; the side wall of the lower die holder is provided with an inwards concave step structure, one end of the lower pressing plate is provided with an outwards convex step structure matched with the inwards concave step structure, and the lower pressing plate is positioned on the lower die holder through a pin and is fixedly connected through a screw.
Further limiting, a guide rod is arranged on one side, away from the lower groove, of the lower die holder, the guide rod extends into the upper die holder, and a guide sleeve is arranged outside the guide rod in the upper die holder.
The guide rod and the guide sleeve are arranged, and the upper die plays a role in guiding when moving downwards.
In order to ensure the service life of the upper die base and the lower die base, the connecting part of the upper die base and the upper die insert is provided with an upper base plate, and the connecting part of the lower die base and the lower die insert is provided with a lower base plate.
In order to further fix the upper die insert and the lower die insert, an upper pressing baffle is arranged on one side, away from the upper pressing plate, of the upper die base, and a lower pressing baffle is arranged on one side, away from the lower pressing plate, of the lower die base.
In order to prevent the upper die insert and the lower die insert from being dislocated, the upper surface of the lower die insert is further limited to be provided with a positioning key.
The utility model has the advantages that: the utility model discloses set up the part that takes shape out gear wheel hub low side at the lower mould and insert, the part that takes shape out gear wheel hub high side sets up at the upper die and inserts, can offset the draft resistance of some upper die inserts through the dead weight of gear forging, make it tend to the equilibrium, do benefit to the forging deformation; the upper die insert and the lower die insert are provided with grooves matched with the bulges of the pressing plate, so that the connection is firm, and the integral stability is ensured.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the novel die comprises an upper die base, a lower die base, a mandril, an upper die insert, a lower press plate, a guide rod, a guide sleeve, an upper cushion plate, an upper groove, a lower cushion plate, a lower pressing baffle, a positioning key, a lower groove and a through hole, wherein the upper die base is 2, the lower die base is 3, the mandril is 4, the upper die insert is 5, the upper press plate is 6, the lower die insert is 7, the lower press plate is 8, the guide rod is 9, the guide sleeve is 10, the upper cushion plate is 11, the upper groove is 12, the lower cushion plate is 13, the upper pressing baffle is 14, the lower pressing baffle is 15, the positioning key is 21, the lower groove is 22, and the through hole is formed.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, a hot forging die for an intermediate shaft reverse gear comprises an upper die holder 1, a lower die holder 2 and a mandril 3, wherein an upper die insert 4 for forming the high end of a gear hub is connected in the middle of the lower bottom surface of the upper die holder 1, an upper groove 11 is formed in one end of the lower bottom surface of the upper die insert 4, an upper pressure plate 5 is clamped on one side of the upper die insert 4, and a protrusion matched with the upper groove 11 is formed in one end of the upper pressure plate 5; the middle of the upper bottom surface of the lower die holder 2 is connected with a lower die insert 6 at the low end of the hub of the forming gear, one end of the upper bottom surface of the lower die insert is provided with a lower groove 21, one side of the lower die insert 6 is connected with a lower pressing plate 7 in a clamping manner, one end of the lower pressing plate 7 is provided with a bulge matched with the lower groove 21, and a through hole 22 for the ejector rod 3 to extend into is formed in the middle of the lower bottom surface of the lower die holder 2.
Preferably, the side wall of the upper die base 1 is provided with an inwards concave step structure, one end of the upper pressure plate 5 is provided with an outwards convex step structure matched with the inwards concave step structure, and the upper pressure plate 5 is positioned on the upper die base 1 through a pin and is fixedly connected through a screw; be equipped with the stair structure of indent on the die holder 2 lateral wall, the one end of holding down plate 7 is equipped with the evagination stair structure with this indent stair structure matched with, and holding down plate 7 is fixed a position to die holder 2 through the pin on, and fixed through the screw connection. A guide rod 8 is arranged on one side of the lower die holder 2 far away from the lower groove, the guide rod 8 extends into the upper die holder 1, and a guide sleeve 9 is arranged outside the guide rod 8 in the upper die holder 1.
Preferably, an upper backing plate 10 is arranged at the joint of the upper die base 1 and the upper die insert 4, and a lower backing plate 12 is arranged at the joint of the lower die base 2 and the lower die insert 6.
Preferably, an upper pressing baffle 13 is arranged on one side of the upper die holder 1 away from the upper pressing plate 5, and a lower pressing baffle 14 is arranged on one side of the lower die holder 2 away from the lower pressing plate 7.
Preferably, the upper surface of the lower die insert 6 is provided with a positioning key 15.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides an intermediate shaft reverse gear hot forging mould, includes upper die base, die holder and ejector pin, its characterized in that: an upper die insert at the high end of a formed gear hub is connected in the middle of the lower bottom surface of the upper die base, an upper groove is formed in one end of the lower bottom surface of the upper die base, an upper pressing plate is clamped on one side of the upper die insert, and a protrusion matched with the upper groove is formed in one end of the upper pressing plate; the middle of the upper bottom surface of the lower die base is connected with a lower die insert at the lower end of a formed gear hub, a lower groove is formed in one end of the upper bottom surface of the lower die base, a lower pressing plate is clamped and connected to one side of the lower die insert, a protrusion matched with the lower groove is formed in one end of the lower pressing plate, and a through hole for a mandril to extend into is formed in the middle of the lower bottom surface of the lower die base.
2. The countershaft reverse gear hot forging die of claim 1, wherein: an inwards concave step structure is arranged on the side wall of the upper die base, an outwards convex step structure matched with the inwards concave step structure is arranged at one end of the upper pressing plate, and the upper pressing plate is positioned on the upper die base through a pin and is fixedly connected through a screw; the side wall of the lower die holder is provided with an inwards concave step structure, one end of the lower pressing plate is provided with an outwards convex step structure matched with the inwards concave step structure, and the lower pressing plate is positioned on the lower die holder through a pin and is fixedly connected through a screw.
3. The countershaft reverse gear hot forging die of claim 1, wherein: and a guide rod is arranged on one side of the lower die base, which is far away from the lower groove, the guide rod extends into the upper die base, and a guide sleeve is arranged outside the guide rod in the upper die base.
4. The countershaft reverse gear hot forging die of claim 1, wherein: an upper base plate is arranged at the joint of the upper die base and the upper die insert, and a lower base plate is arranged at the joint of the lower die base and the lower die insert.
5. The countershaft reverse gear hot forging die of claim 1, wherein: an upper pressing baffle is arranged on one side, away from the upper pressing plate, of the upper die base, and a lower pressing baffle is arranged on one side, away from the lower pressing plate, of the lower die base.
6. The countershaft reverse gear hot forging die of claim 1, wherein: and a positioning key is arranged on the upper surface of the lower die insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022949027.9U CN214557076U (en) | 2020-12-11 | 2020-12-11 | Hot forging die for counter shaft reverse gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022949027.9U CN214557076U (en) | 2020-12-11 | 2020-12-11 | Hot forging die for counter shaft reverse gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214557076U true CN214557076U (en) | 2021-11-02 |
Family
ID=78364049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022949027.9U Active CN214557076U (en) | 2020-12-11 | 2020-12-11 | Hot forging die for counter shaft reverse gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214557076U (en) |
-
2020
- 2020-12-11 CN CN202022949027.9U patent/CN214557076U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101214526B (en) | 7A04 aluminum alloy casing body parts multi-functional die forging technique and mold | |
| CN101274343A (en) | Device for improving forming limit in hydromechanical deep drawing of sheet material and method thereof | |
| CN201613328U (en) | Finishing mould for automotive front axle | |
| CN201855909U (en) | Female die for molding head part of external plum blossom flange type bolt | |
| CN202779413U (en) | Twice-bending composite bending die | |
| CN201217051Y (en) | 7A04 aluminum alloy cartridge receiver body type part coredforging mould | |
| CN214557076U (en) | Hot forging die for counter shaft reverse gear | |
| CN101545440A (en) | Method for manufacturing swivel of actuating lever for motorcycle | |
| CN112676528A (en) | Water drop type shell double-head hot extrusion pipe material forming tool die and forming process | |
| CN210023521U (en) | Composite pipe flanging withholding joint processing equipment | |
| CN211679821U (en) | Cup-shaped body forming die with boss at bottom of inner cavity | |
| CN216176308U (en) | Combined anvil die for forging large crank | |
| CN210936645U (en) | Precision parts stamping device of adjustable punching force degree | |
| CN209830154U (en) | Die forging equipment for U-shaped plate type forge pieces | |
| CN103480786A (en) | Shaft end bevel gear forging mould | |
| CN210676794U (en) | Forging and pressing die for high-precision wear-resistant alloy mobile phone frame | |
| CN211360371U (en) | Claw-shaped tee flaring shaping device | |
| CN210450615U (en) | Stainless steel double-clamping-pressure adjustable straight joint and tee joint production mold | |
| CN107096834A (en) | Punched pipefitting necking die | |
| CN201371216Y (en) | Flaring die for wheel hub of automobile | |
| CN202079169U (en) | Gear connecting shaft head cold-stamping die for hollow half shaft of compensating gear of electric tricycle | |
| CN206838944U (en) | A kind of conventional press pressurize shapes mould bases | |
| CN212495128U (en) | High-precision concentric die | |
| CN221109656U (en) | Mould for necking round tube of fishing rod guide eye | |
| CN221231517U (en) | Screw machine cold heading mould capable of avoiding loosening |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |