CN201921902U - Top die of gear extrusion machine tool - Google Patents
Top die of gear extrusion machine tool Download PDFInfo
- Publication number
- CN201921902U CN201921902U CN2011200246713U CN201120024671U CN201921902U CN 201921902 U CN201921902 U CN 201921902U CN 2011200246713 U CN2011200246713 U CN 2011200246713U CN 201120024671 U CN201120024671 U CN 201120024671U CN 201921902 U CN201921902 U CN 201921902U
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- Prior art keywords
- punch
- gear
- die
- blind hole
- hole
- 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.)
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Abstract
A top die of a gear extrusion machine tool is characterized by comprising a terrace die, wherein a ladder-shaped blind hole which is big in the upper and small in the lower is machined in the terrace die; a terrace die mandrel is installed in the ladder-shaped blind hole; the diameter of the upper part of the terrace die mandrel is larger than the diameter of the lower part; the upper part of the terrace die mandrel is positioned in a large hole of the ladder-shaped blind hole; and the lower part of the terrace die mandrel extends out of the lower end hole of the ladder-shaped blind hole. The top die has the beneficial effects that the top die is matched with a bottom die of the gear extrusion machine tool to realize the quick machining of gears, so the manufacturing process of gears is simplified, the manufacturing cost of gears is reduced and the production efficiency of gears is improved.
Description
Technical field
The utility model belongs to a kind of gear manufacturing equipment, is specifically related to a kind of gear extruding lathe patrix.
Background technology
Traditional gear manufacturing technology is the blank that is gone out to have the cylindrical shape of cylindrical hole earlier by punch ram, by lathe blank is carried out turning processing again, and the blank after the turning processing is carried out the grinding gear hobbing, goes out the gear teeth of gear in the outer wall grinding of blank.
Its shortcoming is, the manufacturing process complexity of this gear, and cost of goods manufactured is too high.
The utility model content
The purpose of this utility model provides a kind of gear extruding lathe patrix, and mate gear extruding lathe counterdie can be realized the low cost manufacturing of the gear teeth, simplifies gear teeth manufacturing process.
For achieving the above object, a kind of gear extruding lathe patrix described in the utility model, its key is: comprise punch, have up big and down small ladder blind hole in the described punch, in this ladder blind hole the punch axle is installed, the upper diameter of this punch axle is greater than lower diameter, and the top of punch axle is arranged in the macropore of described ladder blind hole, and the aperture, lower end of described ladder blind hole is stretched out in the bottom of this punch axle.
Described punch is fixed on the upper bolster of gear extruding lathe, be fixed with die on the die shoe of gear extruding lathe, have cylindrical hole in the described die, this cylindrical hole is relative with the miner diameter end of described punch, the top of described cylindrical hole is smooth circular hole, and lower inner wall has vertical broach groove.
The bottom of punch axle is over against cylindrical hole, and the cross section of punch axle bottom and the cross section of cylindrical hole match.When the extruding gear, cylindrical hole is stretched in the bottom of punch axle.
Die and punch cooperate the extrusion process of finishing just to substitute lathe turning technology and gear grinding step, and have increased substantially the gear manufacturing speed, have reduced production cost.
Butt has spring between the upper end of described punch axle and the ladder blind hole.
Spring has increased the flexibility of punch axle, has promoted the demoulding quality of punch axle.
Have up big and down small shoulder hole in the upper bolster, described punch is up big and down small stepped cylinder, and this punch bigger diameter end is arranged in the macropore of described shoulder hole, and this punch miner diameter end stretches out downwards from the aperture of described shoulder hole.
Upper bolster is fixedlyed connected with press ram.Described press ram is connected with hydraulic press.
Upper bolster and punch move up and down with the mobile of press ram.
Described die shoe has the fitting hole and communicates with described cylindrical hole.
Direct geared falls from the cylindrical hole of die, directly takes out gear from the fitting hole, can improve the production efficiency of gear.
Remarkable result of the present utility model is: a kind of gear extruding lathe patrix is provided, and mate gear pushes the lathe counterdie, has realized the rapid processing of gear, has simplified the manufacturing process of gear, has reduced the manufacturing cost of the gear teeth, improves the production efficiency of gear.
Upper and lower mould cooperates, and has realized that the forward diameter reducing extrusion of gear is shaped, and the deformation extent of its blank is little than the crowded Compound Extrusion of traditional pier, and resistance of deformation significantly descends, and is shaped easily, and die life is long.The form of gear tooth of extruding like this is full, does not have the top phenomenon of collapsing.
But the extrusion die single-piece is shaped, and also can be shaped simultaneously by many bases, can be divided into single part fast after the shaping.
Description of drawings
Fig. 1 is the structure chart of gear extruding lathe;
Fig. 2 is the structure chart of patrix.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 2, a kind of gear extruding lathe patrix, comprise punch 3, have up big and down small ladder blind hole in the described punch 3, in this ladder blind hole punch axle 5 is installed, the upper diameter of this punch axle 5 is greater than lower diameter, and the top of punch axle 5 is arranged in the macropore of described ladder blind hole, and the aperture, lower end of described ladder blind hole is stretched out in the bottom of this punch axle 5.
Butt has spring 4 between the upper end of described punch axle 5 and the ladder blind hole.
As shown in Figure 1, described punch 3 is fixed on the upper bolster 2, be fixed with die 7 on the die shoe 8 of gear extruding lathe, have cylindrical hole in the described die 7, this cylindrical hole is relative with the miner diameter end of described punch 3, the top of described cylindrical hole is smooth circular hole, and lower inner wall has vertical broach groove.
The bottom of punch axle 5 is over against cylindrical hole, and the cross section of punch axle 5 bottoms and the cross section of cylindrical hole match.When the extruding gear, cylindrical hole is stretched in the bottom of punch axle 5.
Die 7 and punch 3 cooperate the extrusion process of finishing just to substitute lathe turning technology and gear grinding step, and have increased substantially the gear manufacturing speed, have reduced production cost.
Have up big and down small shoulder hole in the upper bolster 2, described punch 3 is up big and down small stepped cylinder, and these punch 3 bigger diameter ends are arranged in the macropore of described shoulder hole, and these punch 3 miner diameter ends stretch out downwards from the aperture of described shoulder hole.
Upper bolster 2 is fixedlyed connected with press ram 1.Described press ram 1 is connected with hydraulic press.
Upper bolster 2 and punch 3 move up and down with the mobile of press ram 1.
Described die shoe 8 has fitting hole 9 and communicates with described cylindrical hole.
Direct geared falls from the cylindrical hole of die 7, directly takes out gear from fitting hole 9, can improve the production efficiency of gear.
Its operation principle is: blank 6 is put into the cylindrical hole of die 7, and blank 6 is caught by the broach groove of cylindrical hole bottom.
Hydraulic press drives press ram 1, upper bolster 2 and punch 3 and pushes downwards, the miner diameter end of punch 3 bottoms stretches into the cylindrical hole of die 7, the lower surface of this miner diameter end is pushed blank 6 and is moved down, blank 6 falls from cylindrical hole, fall into the fitting hole 9 of die shoe 8, the outer wall of blank 6 is by the moulding formation wheel of the broach groove flank of tooth.
In whole extrusion process, punch axle 5 has all put in and has passed the through hole at blank 6 middle parts, has guaranteed that the endoporus of gear can be because of crimp.
Although above structure is described preferred embodiment of the present utility model in conjunction with the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present utility model; under the prerequisite of the utility model aim and claim; can make multiple similar expression; as change the motive force of press ram 1; as change the fixed form of press ram 1 and upper bolster 2, such conversion all falls within the protection domain of the present utility model.Such conversion all falls within the protection domain of the present utility model.
Claims (3)
1. a gear pushes the lathe patrix, it is characterized in that: comprise punch (3), have up big and down small ladder blind hole in the described punch (3), punch axle (5) is installed in this ladder blind hole, the upper diameter of this punch axle (5) is greater than lower diameter, the top of punch axle (5) is arranged in the macropore of described ladder blind hole, and the aperture, lower end of described ladder blind hole is stretched out in the bottom of this punch axle (5).
2. gear extruding lathe patrix according to claim 1, it is characterized in that: butt has spring (4) between the upper end of described punch axle (5) and the ladder blind hole.
3. gear extruding lathe patrix according to claim 1, it is characterized in that: described punch (3) is fixed on the upper bolster (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200246713U CN201921902U (en) | 2011-01-25 | 2011-01-25 | Top die of gear extrusion machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200246713U CN201921902U (en) | 2011-01-25 | 2011-01-25 | Top die of gear extrusion machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201921902U true CN201921902U (en) | 2011-08-10 |
Family
ID=44425772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200246713U Expired - Fee Related CN201921902U (en) | 2011-01-25 | 2011-01-25 | Top die of gear extrusion machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201921902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230956A (en) * | 2013-05-09 | 2013-08-07 | 无锡市神力齿轮冷挤有限公司 | Cold extrusion device for gear of starting motor of engine |
| CN103691753A (en) * | 2013-12-13 | 2014-04-02 | 江苏飞船股份有限公司 | Cold extrusion mold for blind hole inner spline |
-
2011
- 2011-01-25 CN CN2011200246713U patent/CN201921902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230956A (en) * | 2013-05-09 | 2013-08-07 | 无锡市神力齿轮冷挤有限公司 | Cold extrusion device for gear of starting motor of engine |
| CN103691753A (en) * | 2013-12-13 | 2014-04-02 | 江苏飞船股份有限公司 | Cold extrusion mold for blind hole inner spline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20140125 |