CN202239216U - Press mold and gear pressed by the same - Google Patents
Press mold and gear pressed by the same Download PDFInfo
- Publication number
- CN202239216U CN202239216U CN2011200870764U CN201120087076U CN202239216U CN 202239216 U CN202239216 U CN 202239216U CN 2011200870764 U CN2011200870764 U CN 2011200870764U CN 201120087076 U CN201120087076 U CN 201120087076U CN 202239216 U CN202239216 U CN 202239216U
- Authority
- CN
- China
- Prior art keywords
- upper punch
- gear
- punch
- oil groove
- press mold
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a press mold. The press mold comprises an upper punch, a female mold, a lower punch and a core rod, which are orderly arranged from top to bottom; the lower punch is sleeved on the core rod, the lower end face of the upper punch is provided with a spline tooth, and two ends of the spline tooth are respectively at the same level with the sunk part between teeth of an inner cavity wall and an external edge of the upper punch. With the press mold, raw material is saved and product quality is ensured. An oil groove is directly pressed by the press instead of being produced by a cutting process, thus, processing procedures and processing time are reduced, and production efficiency is really improved effectively.
Description
Technical field
The utility model relates to the gear of the band oil groove of a kind of press die and compacting thereof.
Background technology
At present, its end face of traditional gear is smooth, and during use, the rotation and the lubricant effect of gear are relatively poor, and the service behaviour of product and operating efficiency are also lower.
Summary of the invention
The technical problem that the utility model will solve is that the rotation and the lubricant effect of existing gear is relatively poor, and the service behaviour of product and operating efficiency are also lower.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of press die, comprise the upper punch, former, bottom punch and the plug that are provided with in order from top to bottom, and bottom punch is enclosed within on the plug; Lower end, said upper punch center is a cylindrical cavity, and outer rim is a gear type; The upper punch lower surface is provided with a key tooth, and key tooth two ends flush with the between cog recess of upper punch internal chamber wall and upper punch outer rim respectively.
Through the key tooth is set on the end face of upper punch, directly have oil groove after can making formed product, saved great deal of raw materials than processing through smear metal to accomplish; Increase oil groove at gear face, compare the rotation that can effectively increase gear with original gear and lubricate the service behaviour and the operating efficiency of raising product.
Gear face is provided with an oil groove, and oil groove is communicated with the wheel rim of bore and between cog recess.
The wide 1.5-2mm of said oil groove, dark 0.8-1mm.
The beneficial effect of the utility model is: in the quality that has guaranteed product, saved raw material again.Oil groove directly through press directly compacting come out to have accomplished less manufacturing procedure and process time the real production efficiency that improved effectively than processing through smear metal.
Description of drawings
Fig. 1 is the structural representation of the utility model gear;
Fig. 2 be Fig. 1 A-A to cutaway view;
Fig. 3 is the utility model press structure sketch map;
Fig. 4 is the work running sketch map of main lubricating oil pump driven gear.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Shown in Fig. 1-2, added an oil groove 1-1 on the end face of gear.
As shown in Figure 3, upper punch 2 lower surfaces of press are provided with a key tooth 1-2, and key tooth 1-2 is positioned at an end of upper punch 2 inner periphery diameters; During compacting, feed box is with filling full iron powder in the die cavity 3, and upper punch 2 is descending then, gets into back pressurization in the former 4, and former 4 is floated downwards synchronously, makes powder 7 compaction mouldings, upper punch 2 backhauls, and former 4 is drop-down, plug 5 descending, the demouldings; After the pressed compact moulding, on the end face of product, directly form a wide 1.5mm, the oil groove of dark 0.8mm.
As shown in Figure 4; During the gear operate as normal; Oil flows into the pump housing from the pump housing one end, and driving gear 8 rotates, and driven gear 9 receives the also and then rotation of driving force of driving gear 8 then; Thereby the oil in the oil pump will be brought to the oil pump other end along with gear rotates, and oil groove 1-1 does not influence the normal operation of the whole pump housing; Owing to the existence of oil groove 1-1, oil flows into bore through oil groove 1-1, has increased lubricating between bore and the axle, has reduced friction, thereby has improved the serviceability of product.
The utility model cooperates existing press with floating type former to use; Help improving original filling condition; Obtain and the suitable effect of mobile dress powder,, still make the density of pressed compact different parts be tending towards even although the powder of different parts has successively; Be that former floats synchronously downwards and can guarantee that upper, middle and lower density differs and be not very big, thereby avoided causing occurring easily crackle because of density differs greatly.
Claims (2)
1. a press die comprises the upper punch, former, bottom punch and the plug that are provided with in order from top to bottom, and bottom punch is enclosed within on the plug, and lower end, said upper punch center is a cylindrical cavity, and outer rim is a gear type; It is characterized in that the upper punch lower surface is provided with a key tooth, key tooth two ends flush with the between cog recess of upper punch internal chamber wall and upper punch outer rim respectively.
2. adopt the gear of the described press die compacting of claim 1, it is characterized in that gear face is provided with an oil groove, oil groove is communicated with the wheel rim of bore and between cog recess.
3. gear according to claim 2 is characterized in that the wide 1.5-2mm of said oil groove, dark 0.8-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200870764U CN202239216U (en) | 2011-03-29 | 2011-03-29 | Press mold and gear pressed by the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200870764U CN202239216U (en) | 2011-03-29 | 2011-03-29 | Press mold and gear pressed by the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239216U true CN202239216U (en) | 2012-05-30 |
Family
ID=46100519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200870764U Expired - Fee Related CN202239216U (en) | 2011-03-29 | 2011-03-29 | Press mold and gear pressed by the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239216U (en) |
-
2011
- 2011-03-29 CN CN2011200870764U patent/CN202239216U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170329 |