CN219924559U - Powder metallurgy output gear forming die - Google Patents
Powder metallurgy output gear forming die Download PDFInfo
- Publication number
- CN219924559U CN219924559U CN202321110343.4U CN202321110343U CN219924559U CN 219924559 U CN219924559 U CN 219924559U CN 202321110343 U CN202321110343 U CN 202321110343U CN 219924559 U CN219924559 U CN 219924559U
- Authority
- CN
- China
- Prior art keywords
- punch
- shaft hole
- output gear
- powder metallurgy
- locating pin
- 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
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 15
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
The utility model discloses a powder metallurgy output gear forming die which comprises a middle die, an upper punch and a lower punch, wherein the upper punch is provided with an upper two-punch shaft hole, the upper two-punch shaft hole is provided with a first rectangular surface, the upper two-punch is arranged in the upper two-punch shaft hole, and the upper two-punch is provided with a second rectangular surface matched with the first rectangular surface; the lower punch is provided with a lower two-punch shaft hole, a lower two-punch is arranged in the lower two-punch shaft hole, and an angle limiting mechanism is arranged between the lower two-punch and the lower punch. According to the utility model, the angle between the characteristics at the two ends of the output gear is ensured through the angle limiting mechanism, so that the occurrence of angle deviation is avoided, and the product quality is ensured.
Description
Technical Field
The utility model belongs to the technical field of powder metallurgy die manufacturing, and particularly relates to a powder metallurgy output gear forming die.
Background
The powder metallurgy output gear as shown in fig. 1-2 comprises a fluted disc 2, wherein the peripheral surface of the fluted disc 2 is provided with teeth 3; one surface of the fluted disc 2 is provided with a shaft body 1, the shaft body 1 is cylindrical, the shaft body 1 is cut with rectangular surfaces 8, the number of the rectangular surfaces 8 is two opposite, and the two rectangular surfaces 8 are parallel; the other surface of the fluted disc 2 is provided with a positioning table 4, the positioning table 4 protrudes out of the surface of the fluted disc 2, a positioning hole is arranged in the positioning table 4, the inner side of the positioning hole is provided with a tooth part 5, the positioning hole is a step hole formed by a big hole on the outer side and a small hole on the inner side, the inner side of the small hole is provided with the tooth part 5, the joint of the positioning table 4 and the fluted disc 2 is provided with an annular groove 6; the shaft body 1, the fluted disc 2 and the positioning table 4 are integrally formed, and the shaft body 1, the fluted disc 2 and the positioning table 4 are coaxial.
When the output gear is in operation, in order to accurately transmit torque or acquire accurate axial positions, the angles between the eccentric shaft body of the upper end surface of the fluted disc and the rectangular surface on the shaft body and the irregular tooth part (comprising a positioning groove with larger radian) on the inner side of the positioning hole of the lower end surface of the fluted disc are required to be ensured. However, the existing powder metallurgy die is difficult to meet the molding requirement, so that deviation occurs in the angles of the upper end and the lower end of the fluted disc, and serious quality defects are brought to products.
Disclosure of Invention
The utility model aims to provide a powder metallurgy output gear forming die, and the angle limiting design of the die can ensure the angle between the characteristics of two ends of an output gear and ensure the product quality.
In order to achieve the technical purpose, the technical scheme of the utility model is as follows: the powder metallurgy output gear forming die comprises a middle die, an upper punch and a lower punch, wherein the upper punch is provided with an upper two-punch shaft hole, the upper two-punch shaft hole is provided with a first rectangular surface, the upper two-punch shaft hole is internally provided with an upper two-punch, and the upper two-punch is provided with a second rectangular surface matched with the first rectangular surface; the lower punch is provided with a lower two-punch shaft hole, a lower two-punch is arranged in the lower two-punch shaft hole, an angle limiting mechanism is arranged between the lower two-punch and the lower punch, and the angle limiting mechanism comprises a positioning pin and a positioning pin sliding groove matched with the positioning pin.
The locating pin is arranged on the lower punch, the locating pin sliding groove is arranged on the lower punch, and the locating pin sliding groove is axially arranged along the lower punch. When the lower punch slides along the lower punch shaft hole, the positioning pin slides in the positioning pin sliding groove so as to prevent the lower punch from rotating in the lower punch shaft hole.
The lower punch is provided with a lower three-punch shaft hole, a lower three-punch is arranged in the lower three-punch shaft hole, and an angle limiting mechanism is arranged between the lower three-punch and the lower two-punch. The angle limiting mechanism between the lower three punch and the lower two punch is the same as the angle limiting mechanism between the lower two punch and the lower punch.
The lower three-punch end part is provided with a positioning hole forming part, the positioning hole forming part comprises a tooth forming part, and the tooth forming part comprises a positioning groove forming part.
According to the utility model, the angle between the characteristics at the two ends of the output gear is ensured through the angle limiting mechanism, so that the occurrence of angle deviation is avoided, and the product quality is ensured.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a cross-sectional view of an output gear.
FIG. 2 is a schematic view of the toothed disc portion with the output gear shaft portion facing opposite.
FIG. 3 is a schematic diagram of the structure of the mold in the present utility model.
Fig. 4 is a schematic view of an up-punching section structure of the present utility model.
Fig. 5 is a schematic view of the structure of the upper punch end face of the present utility model.
FIG. 6 is a schematic diagram of a two-punch cross-sectional structure of the present utility model.
Fig. 7 is a schematic diagram of the structure of the upper two-punch end face of the present utility model.
Fig. 8 is a schematic view of an undershoot section structure of the present utility model.
Fig. 9 is a schematic view of the structure of the undershoot end surface of the present utility model.
FIG. 10 is a schematic view of a lower punch section structure of the present utility model.
Fig. 11 is a schematic view of the structure of the lower two-punch end face of the present utility model.
Fig. 12 is a schematic view of a lower three-punch section structure of the present utility model.
Fig. 13 is a schematic view of the structure of the lower triple punch end surface of the present utility model.
Detailed Description
As shown in fig. 3-13, the powder metallurgy output gear forming die comprises a middle die 11, an upper punch 21 is arranged above the middle die 11, the upper punch 21 is provided with an upper two-punch shaft hole 211, the upper two-punch shaft hole 211 is provided with a first rectangular surface 221, an upper two-punch 22 is arranged in the upper two-punch shaft hole 211, the upper two-punch 22 is provided with a second rectangular surface 222 matched with the first rectangular surface 211, and the upper two-punch 22 and the upper punch 21 are matched to form a shaft body of the upper end face of the output gear and a rectangular surface on the shaft body.
The lower punch 31 is arranged below the middle die 11, the lower punch 31 is provided with a lower two-punch shaft hole 311, a lower two-punch 32 is arranged in the lower two-punch shaft hole 311, an angle limiting mechanism is arranged between the lower two-punch 32 and the lower punch 31, the angle limiting mechanism between the lower two-punch 32 and the lower punch 31 comprises a locating pin sliding groove 411 and a locating pin 412, the locating pin 412 is arranged on the lower two-punch 32, the locating pin sliding groove 411 is arranged on the lower punch 31 and is axially arranged along the lower punch 31, and when the lower two-punch 32 penetrates into the middle die 11 along the lower two-punch shaft hole 311, the locating pin 412 slides along the locating pin sliding groove 411.
The lower punch 32 is provided with a lower triple punch shaft hole 321, a lower triple punch 33 is arranged in the lower triple punch shaft hole 321, an angle limiting mechanism is arranged between the lower triple punch 33 and the lower double punch 32, the angle limiting mechanism between the lower triple punch 33 and the lower double punch 32 comprises a locating pin sliding groove 421 and a locating pin 422, the locating pin 422 is arranged on the lower triple punch 33, the locating pin sliding groove 421 is arranged on the lower double punch 32 and axially arranged along the lower double punch 32, and when the lower triple punch 33 penetrates into the middle die 11 along the lower triple punch shaft hole 321, the locating pin 422 slides along the locating pin sliding groove 421.
The end of the lower three-punch 33 is provided with a positioning hole forming portion 331, the positioning hole forming portion 331 includes a tooth forming portion 332, and the tooth forming portion 332 includes a positioning groove forming portion 333. The positioning hole forming part 331 at the end of the lower three-punch 33 is used for forming the positioning hole of the output gear, the tooth forming part 332 at the end of the lower three-punch 33 is used for forming the tooth of the small hole at the inner side of the output gear, the positioning groove forming part 333 at the end of the lower three-punch 33 is used for forming the positioning groove of the gear tooth of the output gear, the end of the lower two-punch 32 is used for forming the positioning table of the output gear, and the end of the lower punch 31 is used for forming the annular groove of the output gear.
The angle between the positioning groove and the rectangular surface is limited through the angle limiting mechanism, so that the angle between the characteristics at the two ends of the output gear is ensured, the angle deviation is avoided, and the product quality is ensured.
The above embodiments do not limit the present utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present utility model.
Claims (5)
1. Powder metallurgy output gear forming die, its characterized in that: the upper punch is provided with an upper two-punch shaft hole, a first rectangular surface is arranged in the upper two-punch shaft hole, and a second rectangular surface matched with the first rectangular surface is arranged in the upper two-punch shaft hole; the lower punch is provided with a lower two-punch shaft hole, a lower two-punch is arranged in the lower two-punch shaft hole, and an angle limiting mechanism is arranged between the lower two-punch and the lower punch.
2. The powder metallurgy output gear forming die according to claim 1, wherein: the angle limiting mechanism comprises a locating pin and a locating pin sliding groove matched with the locating pin.
3. The powder metallurgy output gear forming die according to claim 2, wherein: the locating pin is arranged on the lower punch, the locating pin sliding groove is arranged on the lower punch, and the locating pin sliding groove is axially arranged along the lower punch.
4. The powder metallurgy output gear forming die according to claim 1, wherein: the lower punch is provided with a lower three-punch shaft hole, a lower three-punch is arranged in the lower three-punch shaft hole, and an angle limiting mechanism is arranged between the lower three-punch and the lower two-punch.
5. The powder metallurgy output gear forming die according to claim 4, wherein: the lower three-punch end part is provided with a positioning hole forming part, the positioning hole forming part comprises a tooth forming part, and the tooth forming part comprises a positioning groove forming part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321110343.4U CN219924559U (en) | 2023-05-10 | 2023-05-10 | Powder metallurgy output gear forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321110343.4U CN219924559U (en) | 2023-05-10 | 2023-05-10 | Powder metallurgy output gear forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219924559U true CN219924559U (en) | 2023-10-31 |
Family
ID=88498537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321110343.4U Active CN219924559U (en) | 2023-05-10 | 2023-05-10 | Powder metallurgy output gear forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219924559U (en) |
-
2023
- 2023-05-10 CN CN202321110343.4U patent/CN219924559U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219924559U (en) | Powder metallurgy output gear forming die | |
| CN110039270B (en) | Method for manufacturing combined duplicate gear | |
| CN203610980U (en) | High-precision zero-clearance transmission numerical control rotary table | |
| CN201836339U (en) | Dual gear structure | |
| CN110479926B (en) | Split type space envelope forming equipment for large-scale complex component | |
| CN202824207U (en) | Gear portion reforming of straight gear and bevel gear of blind hole and internal spline cold extruding die | |
| CN102847807B (en) | Blind-hole straight bevel gear tooth reshaping and internal spline cold extruding die | |
| CN209855497U (en) | Spacing axle on floor spring | |
| CN204565112U (en) | A kind of rotating shaft core mold | |
| CN220791970U (en) | Eccentric gear of assembled punch press | |
| CN210450340U (en) | Device for cold extruding boss of tooth part | |
| CN208976520U (en) | A kind of ball spline casing cold-drawn one-time-shaped mould | |
| JPH1171604A (en) | Forming of spiral bevel gear, and powder molding device | |
| CN207592697U (en) | A kind of pressure of hot die forging eccentric drive shaft | |
| CN209918747U (en) | Extrusion worm structure for thin-wall gear hub | |
| CN220910271U (en) | Disassembly-free spline shaft coupler | |
| CN211852536U (en) | High-precision centering connecting shaft structure | |
| CN201391589Y (en) | Assembled synchronous pulley | |
| CN110296183A (en) | A kind of bevel gear set | |
| CN205283285U (en) | PMSM pivot and connection structure of rotor core towards piece | |
| CN213655650U (en) | Powder metallurgy gear | |
| CN218799110U (en) | Powder metallurgy internal bevel gear ring workpiece forming die | |
| CN115229051A (en) | Bolt formula unloading is towards subassembly and stamping device | |
| CN219786022U (en) | Gear clearance adjusting device of rolling mill | |
| CN204321261U (en) | A kind of ladder counterbit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |