CN204817526U - Down --hold drill bit spline body cold extruding die - Google Patents
Down --hold drill bit spline body cold extruding die Download PDFInfo
- Publication number
- CN204817526U CN204817526U CN201520612546.2U CN201520612546U CN204817526U CN 204817526 U CN204817526 U CN 204817526U CN 201520612546 U CN201520612546 U CN 201520612546U CN 204817526 U CN204817526 U CN 204817526U
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- China
- Prior art keywords
- spline
- die
- counterdie
- drill bit
- mould
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Abstract
The utility model discloses a down - -hold drill bit spline body cold extruding die, including spline extrusion and final two sets of moulds of shaping, the every set of mould is all including upper die base and die holder corresponding with it, and install the mould through the bolt and fix and overlap on the lower terminal surface of upper die base, go up the fixed cover endotheca of mould and be equipped with the mould, install the lower mould fixing base through the bolt on the up end of die holder, from interior to exterior is equipped with cushion, well space block and lower mould in proper order in the lower mould fixing base, be provided with the slider that seals in lower mould die cavity bottom in the well space block, be equipped with the ejector pin that the slider can be pushed the drag intracavity in the cushion. Adopt the utility model discloses the processing down -the -hold drill bit spline body only needs extrusion spline and the thick first twice process of mound can to complete the processing of, has not only improved production efficiency, makes product quality shown and promotes, simultaneously all right material saving, reduction in production cost.
Description
Technical field
The utility model relates to technical field of mold, more particularly, particularly relates to a kind of down-the-hold drill bit spline body cold extrusion die.
Background technology
At present, at forging industry, the method of traditional processing down-the-hold drill bit spline body is: first with coal reverberatory furnace, heat steel is forged down-the-hold drill bit spline chaeta bases to about 1150 DEG C, then complete processing by operations such as later stage engine lathe roughing, numerically controlled lathe fine finishining, milling machine milling splines.Adopt this kind of method to process, have the following disadvantages: 1, heat steel be easily oxidized to when 1150 DEG C, decarburization, generate intergranular oxidation thing, thus affect product quality; 2, labor strength is large, work under bad environment, danger; 3, process flow is complicated, and equipment investment is large; 4, production cost is large, and stock utilization is low; 5, production efficiency is low.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of down-the-hold drill bit spline body cold extrusion die, enhances productivity, improve the quality of products, and reduces production cost.
For achieving the above object, the technical solution adopted in the utility model is: a kind of down-the-hold drill bit spline body cold extrusion die, comprise spline extruding and final molding two mold, the die shoe that every mold includes upper bolster and corresponds, the lower surface of upper bolster is provided with patrix fixed cover by bolt, patrix is set with in described patrix fixed cover, the upper surface of die shoe is provided with lower model fixing seat by bolt, successively cushion block is housed from the inside to the outside in described lower model fixing seat, middle spacer block and counterdie, the slide block being enclosed in counterdie cavity bottom is provided with in described middle spacer block, the push rod that slide block can be pushed in counterdie die cavity is provided with in described cushion block, wherein, be provided with some briquettings of extruding spline in the counterdie die cavity of spline extrusion die, the counterdie die cavity of final molding mould and the contour structures of down-the-hold drill bit spline body match.
Adopt the utility model processing down-the-hold drill bit spline body, first in spline extrusion die, complete extruding spline, after in final molding mould the thick head of pier make workpiece final molding, two procedures is only needed to complete processing, not only increase production efficiency, product quality is significantly improved, material can also be saved simultaneously, reduce production cost.
Accompanying drawing explanation
Fig. 1 is spline structure of extrusion schematic diagram of the present utility model;
Fig. 2 is final molding mould structure schematic diagram of the present utility model.
In figure: 1-upper bolster; 2-patrix fixed cover; 3-patrix; 4-die shoe; Model fixing seat under 5-; 6-cushion block; Spacer block in 7-; 8-counterdie; 9-lock-screw; 10-slide block; 11-push rod.
Detailed description of the invention
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
As depicted in figs. 1 and 2, down-the-hold drill bit spline body cold extrusion die provided by the utility model, comprise spline extruding and final molding two mold, the die shoe 4 that every mold includes upper bolster 1 and corresponds, the lower surface of upper bolster 1 is provided with patrix fixed cover 2 by bolt, patrix 3 is set with in described patrix fixed cover 2, the upper surface of die shoe 4 is provided with lower model fixing seat 5 by bolt, from the inside to the outside cushion block 6 is housed successively in described lower model fixing seat 5, middle spacer block 7 and counterdie 8, described cushion block 6 is fixedly connected with middle spacer block 7, described middle spacer block 7 and counterdie 8 are fixed in lower model fixing seat 5 respectively by lock-screw 9, the slide block 10 being enclosed in counterdie 8 cavity bottom is provided with in described middle spacer block 7, the push rod 11 that slide block 10 can be pushed in counterdie 8 die cavity is provided with in described cushion block 6.
Spline extrusion die shown in Fig. 1 and the final molding mould shown in Fig. 2, its difference is only: the some briquettings being provided with extruding spline in counterdie 8 die cavity of spline extrusion die, counterdie 8 die cavity of final molding mould and the contour structures of down-the-hold drill bit spline body match.
When using the utility model processing down-the-hold drill bit spline body, first bar is heated in about the 760 DEG C die cavities putting into the counterdie 8 of the spline extrusion die shown in Fig. 1, upper bolster 1 is lower under the driving of forcing press exercises the die cavity that patrix 3 enters counterdie 8, when forcing press continues to decline, patrix 3 starts the bar extruded in die cavity, bar forms spline, then forcing press is exercised patrix 3 to separate with counterdie 8, ejected by the bar of push rod 11 by band spline; Then the bar of band spline is put in the die cavity of the counterdie 8 of the final molding mould shown in Fig. 2, same, upper bolster 1 is lower under the driving of forcing press exercises the die cavity that patrix 3 enters counterdie 8, when forcing press continues to decline, patrix 3 starts the bar extruded in die cavity, the head pier of bar is thick, make Workpiece shaping, then forcing press is exercised patrix 3 and separate with counterdie 8, by push rod 11, shaping workpiece is ejected, complete processing.
Adopt the utility model processing down-the-hold drill bit spline body, first in spline extrusion die, complete extruding spline, after in final molding mould the thick head of pier make workpiece final molding, two procedures is only needed to complete processing, not only increase production efficiency, product quality is significantly improved, material can also be saved simultaneously, reduce production cost.
Claims (2)
1. a down-the-hold drill bit spline body cold extrusion die, it is characterized in that: comprise spline extruding and final molding two mold, the die shoe that every mold includes upper bolster and corresponds, the lower surface of upper bolster is provided with patrix fixed cover by bolt, patrix is set with in described patrix fixed cover, the upper surface of die shoe is provided with lower model fixing seat by bolt, successively cushion block is housed from the inside to the outside in described lower model fixing seat, middle spacer block and counterdie, the slide block being enclosed in counterdie cavity bottom is provided with in described middle spacer block, the push rod that slide block can be pushed in counterdie die cavity is provided with in described cushion block, wherein, be provided with some briquettings of extruding spline in the counterdie die cavity of spline extrusion die, the counterdie die cavity of final molding mould and the contour structures of down-the-hold drill bit spline body match.
2. cold extrusion die according to claim 1, is characterized in that: described cushion block is fixedly connected with middle spacer block, and described middle spacer block and counterdie are fixed in lower model fixing seat respectively by lock-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612546.2U CN204817526U (en) | 2015-08-14 | 2015-08-14 | Down --hold drill bit spline body cold extruding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612546.2U CN204817526U (en) | 2015-08-14 | 2015-08-14 | Down --hold drill bit spline body cold extruding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817526U true CN204817526U (en) | 2015-12-02 |
Family
ID=54675168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520612546.2U Expired - Fee Related CN204817526U (en) | 2015-08-14 | 2015-08-14 | Down --hold drill bit spline body cold extruding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204817526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335723A (en) * | 2017-08-28 | 2017-11-10 | 陈志妹 | A kind of cylinder block of hydraulic pumps extrusion die |
-
2015
- 2015-08-14 CN CN201520612546.2U patent/CN204817526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335723A (en) * | 2017-08-28 | 2017-11-10 | 陈志妹 | A kind of cylinder block of hydraulic pumps extrusion die |
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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: 20151202 Termination date: 20170814 |