CN202316612U - Spline forming device for large-diameter long hollow transmission shaft - Google Patents
Spline forming device for large-diameter long hollow transmission shaft Download PDFInfo
- Publication number
- CN202316612U CN202316612U CN201120469261XU CN201120469261U CN202316612U CN 202316612 U CN202316612 U CN 202316612U CN 201120469261X U CN201120469261X U CN 201120469261XU CN 201120469261 U CN201120469261 U CN 201120469261U CN 202316612 U CN202316612 U CN 202316612U
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- die
- lower mold
- hollow transmission
- tooth
- spline
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Abstract
The utility model relates to a spline forming device for a large-diameter long hollow transmission shaft, which comprises an upper mold main body, a tooth-shaped mold, a lower mold seat, a lower mold plate, a lower push rod and a material ejection plate. An upper mold fixing plate is arranged on the bottom side of an upper mold plate, the upper mold body is clamped in a central location groove of the upper mold plate by the upper mold fixing plate through a locking bolt, the lower mold plate is fixedly connected with the lower mold seat through a bolt, a location counter hole at the bottom of the lower mold seat is matched with a location boss of the lower mold plate, a core bar is positioned in a guide hole of the lower mold plate, the upper end of the lower mold seat is in locking connection with a lower mold stress ring through a bolt, and the lower mold stress ring is connected with the tooth-shaped mold on the inner side of the lower mold stress ring in taper interference fit mode. The spline forming device for the large-diameter long hollow transmission shaft has the advantages of being composed of assemblies of an upper mold, the upper mold fixing plate, the tooth-shaped mold, the lower mold stress ring, the core bar, the material ejection plate, the lower mold seat and the like, capable of forming a spline of the large-diameter long hollow transmission shaft in one time, being quick in processing speed, high in efficiency, good in component quality, capable of remarkably reducing production cost and the like.
Description
Technical field
The utility model relates to metal cold extrusion die technical field, relates in particular to a kind of spline shaped device of major diameter elongated Hollow Transmission Shafts.
Background technology
Splined shaft is as mechanically operated a kind of, and is identical with flat key, woodruff key, taper key effect, and its structure is that the appearance at axle has vertical keyway, and the revolving part that is enclosed within on the axle also has corresponding keyway, can keep with axle rotation synchronously; In rotation, also can on axle, do longitudinal sliding motion, can be applicable to brake, steering mechanism etc.At present, the spline processing method of the hollow splined shaft of great diameter and long is generally metal cutting.This method exists a lot of deficiencies, and for example: the spline linearity of 1. being processed is relatively poor and belong to chip breaking processing, and intensity is low again; 2. process velocity is slow, and production efficiency is lower; 3. equipment has high input, and cutter and auxiliary material consumption are bigger.Therefore, to above aspect, need reasonably improve prior art.
The utility model content
To above defective; The utility model provides a kind of and helps improving working (machining) efficiency, can improve part quality, can significantly reduce production costs, can guarantee the spline shaped device of the major diameter elongated Hollow Transmission Shafts of moulding spline linearity, to solve many deficiencies of prior art.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of spline shaped device of major diameter elongated Hollow Transmission Shafts; Comprise mould body, tooth die, die shoe and lower bolster, lower push rod, die pad; Said cope match-plate pattern bottom side is provided with upper mould fixed plate, and this upper mould fixed plate will be gone up mould body through clamping screw and be clamped in the cope match-plate pattern centralized positioning groove; Said lower bolster matches with the lower bolster positioning boss through the location counterbore that bolt connects die shoe and die shoe bottom, is provided with core bar in the lower bolster pilot hole; Match with the positioning boss of counterdie circle stress lower end through the location counterbore that bolt locking connects counterdie circle stress and die shoe upper end in said die shoe upper end; Said counterdie circle stress is connected with its inboard tooth die tapering interference fit.
In addition, for above technical characterictic, also comprise: said lower bolster middle part is offered four through holes and in this through hole, is provided with lower push rod, is provided with die pad between said die shoe and the core bar, and the center of said tooth die overlaps with the core bar center; Said counterdie circle stress is connected with its inboard tooth die tapering interference fit, and the tooth of said tooth die can be set to two short teeth or full dentalation; Has spacing between the spline position of said tooth die and the die body upper surface.
The beneficial effect of the spline shaped device of the described major diameter elongated of the utility model Hollow Transmission Shafts is: through being made up of assemblies such as patrix, upper mould fixed plate, tooth die, counterdie circle stress, core bar, die pad, die shoes; Can make the spline one-shot forming of great diameter and long Hollow Transmission Shafts; Have that process velocity is fast, efficient is high, part quality is good, thereby advantage such as significantly reduce production costs; Be suitable for very much modulus and be 2mm, pitch circle 80mm, spline length and surpass the spline moulding of the Hollow Transmission Shafts of 240mm.
Description of drawings
According to accompanying drawing the utility model is done further explain below.
Fig. 1 is the upper and lower mould package assembly sketch map of the spline shaped device of the said major diameter elongated of the utility model embodiment Hollow Transmission Shafts;
Fig. 2 is two tooth die sketch mapes of lacking odontoids of the spline shaped device of the said major diameter elongated of the utility model embodiment Hollow Transmission Shafts;
Fig. 3 is the tooth die sketch map of full odontoid of the spline shaped device of the said major diameter elongated of the utility model embodiment Hollow Transmission Shafts;
Fig. 4 is the material jacking mechanism sketch map of the spline shaped device of the said major diameter elongated of the utility model embodiment Hollow Transmission Shafts;
Fig. 5 is the material jacking mechanism partial cutaway schematic of the spline shaped device of the said major diameter elongated of the utility model embodiment Hollow Transmission Shafts.
Among the figure:
1, cope match-plate pattern; 2, upper mould fixed plate; 3, go up mould body; 4, counterdie circle stress; 5, tooth die; 6, die shoe; 7, lower bolster; 8, lower push rod; 9, die pad; 10, core bar; 11, two short teeth; 12, full dentalation.
The specific embodiment
Shown in Fig. 1, Fig. 4-5, the spline shaped device of the described major diameter elongated of the utility model embodiment Hollow Transmission Shafts comprises mould body 3, tooth die 5, die shoe 6 and material jacking mechanism, and this material jacking mechanism is made up of lower bolster 7, lower push rod 8, die pad 9; Whole device is divided into two parts up and down, and primary structure comprises:
Said cope match-plate pattern 1 top is fixed on the slider of hydraulic press and locating slot is offered in its center; Said cope match-plate pattern 1 bottom side is provided with upper mould fixed plate 2, and this upper mould fixed plate 2 will be gone up mould body 3 through clamping screw and be clamped in the locating slot to guarantee that patrix 2 is on the Center of Pressure of hydraulic press;
Said lower bolster 7 bottoms are fixed on the hydraulic press work top, and these lower bolster 7 upper surfaces then are provided with the location counterbore of positioning boss and correspondence and guarantee that the positioning boss center overlaps with the Center of Pressure of hydraulic press; Said lower bolster 7 connects die shoe 6 through bolt, and these die shoe 6 tops are provided with the location counterbore and its bottom is provided with the counterbore that is complementary with lower bolster 7; Said lower bolster 7 middle parts are offered four through holes and in this through hole, are provided with lower push rod 8, simultaneously, are provided with core bar 10 in lower bolster 7 pilot holes and pass through bolted; Between die shoe 6 and core bar 10, be provided with die pad 9;
For the part of the lower die, match with the positioning boss of counterdie circle stress 4 lower ends through the location counterbore that bolt locking connects counterdie circle stress 4 and die shoe 6 upper ends in said die shoe 6 upper ends; Said counterdie circle stress 4 is provided with the through hole of constant slope, and this counterdie circle stress 4 is connected with its inboard tooth die 5 interference fit and compresses; The central lines of two locating holes in positioning boss on the said lower bolster 7, counterbore and the die shoe 6; Two locating holes overlap with counterdie circle stress 4 inner hole centrelines in the said die shoe 6, and the mold cavity center line of said tooth die 5 and male cone (strobilus masculinus) center line overlap to guarantee the stability of system with counterdie circle stress 4 inner hole centrelines.
Shown in Fig. 2-3, the spline shaped device of the described major diameter elongated of the utility model embodiment Hollow Transmission Shafts, the tooth of said tooth die 5 can be set to two short teeth 11 or expire dentalation 12 to guarantee the linearity of moulding spline.
The spline shaped device of the described major diameter elongated of above the utility model embodiment Hollow Transmission Shafts, during practical implementation, workpiece is treated; Workpiece is put into the counterdie porch, and stretch in the core bar 10, ajust workpiece; The primer fluid press; Slide block drives the top mould and moves down, and workpiece is urged in tooth die 5 and the core bar 10, is spline after the process extrusion modling; After the slide block backhaul, eject workpiece, accomplish the processing and forming of target product through lower push rod 8 and die pad 9.Blank metal deformation amount meets the operational characteristic of necking down extruding; According to forming process not the unstability principle carry out technological design; The spline position of tooth die 5 and end face have certain distance not leak to guarantee deformable metal, and die pad 9 is to accomplish ejecting of workpiece through one group of lower push rod 8.
Above embodiment is the more preferably specific embodiment a kind of of the utility model, and common variation that those skilled in the art carry out in present technique scheme scope and replacement should be included in the protection domain of the utility model.
Claims (6)
1. the spline shaped device of a major diameter elongated Hollow Transmission Shafts comprises mould body (3), tooth die (5), die shoe (6) and lower bolster (7), lower push rod (8), die pad (9), it is characterized in that:
Said cope match-plate pattern (1) bottom side is provided with upper mould fixed plate (2), and this upper mould fixed plate (2) will be gone up mould body (3) through clamping screw and be clamped in cope match-plate pattern (1) the centralized positioning groove;
Said lower bolster (7) matches with lower bolster (7) positioning boss through the location counterbore that bolt connects die shoe (6) and die shoe (6) bottom, is provided with core bar (10) in lower bolster (7) pilot hole;
Match with the positioning boss of counterdie circle stress (4) lower end through the location counterbore that bolt locking connects counterdie circle stress (4) and die shoe (6) upper end in said die shoe (6) upper end; Said counterdie circle stress (4) is connected with its inboard tooth die (5) tapering interference fit.
2. the spline shaped device of major diameter elongated Hollow Transmission Shafts according to claim 1; It is characterized in that: said lower bolster (7) middle part is offered four through holes and in this through hole, is provided with lower push rod (8), is provided with die pad (9) between said die shoe (6) and the core bar (10).
3. the spline shaped device of major diameter elongated Hollow Transmission Shafts according to claim 1 is characterized in that: the center of said tooth die (5) overlaps with core bar (10) center.
4. the spline shaped device of major diameter elongated Hollow Transmission Shafts according to claim 1 is characterized in that: said counterdie circle stress (4) is connected with its inboard tooth die (5) tapering interference fit.
5. the spline shaped device of major diameter elongated Hollow Transmission Shafts according to claim 1 is characterized in that: the tooth of said tooth die (5) can be set to two short teeth (11) or full dentalation (12).
6. the spline shaped device of major diameter elongated Hollow Transmission Shafts according to claim 1 is characterized in that: have spacing between the spline position of said tooth die (5) and the die body upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120469261XU CN202316612U (en) | 2011-11-23 | 2011-11-23 | Spline forming device for large-diameter long hollow transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120469261XU CN202316612U (en) | 2011-11-23 | 2011-11-23 | Spline forming device for large-diameter long hollow transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202316612U true CN202316612U (en) | 2012-07-11 |
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ID=46428610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120469261XU Expired - Fee Related CN202316612U (en) | 2011-11-23 | 2011-11-23 | Spline forming device for large-diameter long hollow transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202316612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106607469A (en) * | 2016-12-19 | 2017-05-03 | 河南平高电气股份有限公司 | Contact pedestal extrusion die and extrusion molding method thereof |
-
2011
- 2011-11-23 CN CN201120469261XU patent/CN202316612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106607469A (en) * | 2016-12-19 | 2017-05-03 | 河南平高电气股份有限公司 | Contact pedestal extrusion die and extrusion molding method thereof |
| CN106607469B (en) * | 2016-12-19 | 2019-04-26 | 河南平高电气股份有限公司 | Contact base extrusion die and its extrusion process |
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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: 20120711 Termination date: 20161123 |