CN103934296A - Cold extruding-forming mold for external spline - Google Patents
Cold extruding-forming mold for external spline Download PDFInfo
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- CN103934296A CN103934296A CN201410148165.3A CN201410148165A CN103934296A CN 103934296 A CN103934296 A CN 103934296A CN 201410148165 A CN201410148165 A CN 201410148165A CN 103934296 A CN103934296 A CN 103934296A
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- mold
- die
- push rod
- punch
- fixed cover
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Abstract
The invention provides a cold extruding-forming mold for an external spline and relates to the technical field of a cold extruding device for the external spline. The cold extruding-forming mold comprises an upper mold seat and a lower mold seat, wherein guide sleeves are arranged at the positions close to two ends of the upper mold seat, a convex mold is arranged at the lower part of the upper mold seat, a convex mold fixing plate is arranged on the outer side of the convex mold, a convex mold insert is arranged at the upper part of the convex mold, and an upper padding plate is arranged between the convex mold insert and the upper mold seat; guide posts are arranged at the positions close to two ends of the lower mold seat, a concave mold fixing plate is arranged at the upper part of the lower mold seat, an ejection rod fixing sleeve a is arranged in the middle of the lower mold seat, an ejection rod is arranged in the ejection rod fixing sleeve a, an ejection rod fixing sleeve b is arranged at the upper part of the ejection rod fixing sleeve a and is arranged in the concave mold fixing plate, a lower padding plate is arranged at the upper part of the ejection rod fixing sleeve b, a concave mold is arranged at the upper part of the lower padding plate, and an concave mold coat is arranged at the upper part of the concave mold. The cold extruding-forming mold has the advantages that the manufacturing cost is low, the production efficiency is high, and materials are saved; compared with a cold extruding machine, the mold is high in machining speed and low in product rejection rate and is suitable for the large-scale machining of products.
Description
Technical field
The present invention relates to external splines cold extrusion device technical field, be specifically related to external splines cold-extrusion shaping mould.
Background technology
External splines is multiple tooth part, and external splines is connected in intensity, technique and use following feature: connect stressed comparatively even; Can bear larger load; Guidance quality is good.External splines is applicable to that centering precision requirement is high, transmitting torque is large or the connection of frequent slippage.External splines is widely used in the mechanized equipments such as automobile, tractor, engineering machinery, in actual production, is in great demand.Because external splines is difficult to processing with conventional machine cut processing.At present, the comparatively advanced processing method of external splines is to adopt cold extrusion press processing, but cold extrusion press is too expensive, and production cost is high, and process velocity is slow, and material expends larger.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of cost expense is low, production efficiency is high and save the external splines processing mold of material, i.e. external splines cold-extrusion shaping mould.
Technical problem to be solved by this invention realizes by the following technical solutions:
External splines cold-extrusion shaping mould, comprises upper bolster and die shoe, and described upper bolster is provided with guide pin bushing near end positions, upper bolster bottom is provided with punch, punch outside is provided with punch retainer, and punch top is provided with punch insert, between punch insert and upper bolster, is provided with upper padding plate; Described die shoe is provided with guide pillar near end positions, die shoe top is provided with die block, die shoe middle part is provided with push rod fixed cover a, push rod fixed cover a inside is provided with push rod, push rod fixed cover a top is provided with push rod fixed cover b, and push rod fixed cover b is inner at die block, and push rod fixed cover b top is provided with lower bolster, lower bolster top is provided with die, and die top is provided with die overcoat.Push rod can eject the waste material that machines rear generation.
Described punch retainer inside is provided with fixture of the spring.Fixture of the spring is used for clamping spline, is convenient to spline to process.
On described die, be processed with the key tooth of spline.
The invention has the beneficial effects as follows: the present invention has advantages of that cost expense is low, production efficiency is high and saving material, and mould is faster than cold extrusion press process velocity, and product rejection rate is low, is applicable to a large amount of processing of product.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
In figure, 1, guide pin bushing, 2, punch retainer, 3, punch, 4, upper padding plate, 5, guide pillar, 6, upper bolster, 7, punch insert, 8, fixture of the spring, 9, die, 10, die shoe, 11, die block, 12, push rod, 13, push rod fixed cover a, 14, push rod fixed cover b, 15, lower bolster, 16, die overcoat.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, external splines cold-extrusion shaping mould, comprise upper bolster 6 and die shoe 10, upper bolster 6 is provided with guide pin bushing 1 near end positions, upper bolster 6 bottoms are provided with punch 3, punch 3 outsides are provided with punch retainer 2, and punch 3 tops are provided with punch insert 7, between punch insert 7 and upper bolster 6, are provided with upper padding plate 4; Die shoe 10 is provided with guide pillar 5 near end positions, die shoe 10 tops are provided with die block 11, die shoe 10 middle parts are provided with push rod fixed cover a13, push rod fixed cover a13 inside is provided with push rod 12, push rod fixed cover a13 top is provided with push rod fixed cover b14, and push rod fixed cover b14 is in die block 11 inside, and push rod fixed cover b14 top is provided with lower bolster 15, lower bolster 15 tops are provided with die 9, and die 9 tops are provided with die overcoat 16.
Punch retainer 2 inside are provided with fixture of the spring 8; On die 9, be processed with the key tooth of spline.
During work, spline blank upper end is enclosed within on punch 3, and fixture of the spring 8 is clamped spline blank, opens shift knob, punch 3 moves downwards, spline blank enters die 9 by die overcoat 16, and under the pressure of punch 3, spline blank lower end outer surface squeezes out key tooth, then punch 3 moves upward, from punch 3, take off external splines, push rod 12 ejects waste material, for processing is next time prepared.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. external splines cold-extrusion shaping mould, comprise upper bolster and die shoe, it is characterized in that: described upper bolster is provided with guide pin bushing near end positions, upper bolster bottom is provided with punch, punch outside is provided with punch retainer, punch top is provided with punch insert, between punch insert and upper bolster, is provided with upper padding plate; Described die shoe is provided with guide pillar near end positions, die shoe top is provided with die block, die shoe middle part is provided with push rod fixed cover a, push rod fixed cover a inside is provided with push rod, push rod fixed cover a top is provided with push rod fixed cover b, and push rod fixed cover b is inner at die block, and push rod fixed cover b top is provided with lower bolster, lower bolster top is provided with die, and die top is provided with die overcoat.
2. external splines cold-extrusion shaping mould according to claim 1, is characterized in that: described punch retainer inside is provided with fixture of the spring.
3. external splines cold-extrusion shaping mould according to claim 1, is characterized in that: the key tooth that is processed with spline on described die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148165.3A CN103934296A (en) | 2014-04-14 | 2014-04-14 | Cold extruding-forming mold for external spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148165.3A CN103934296A (en) | 2014-04-14 | 2014-04-14 | Cold extruding-forming mold for external spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103934296A true CN103934296A (en) | 2014-07-23 |
Family
ID=51182318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410148165.3A Pending CN103934296A (en) | 2014-04-14 | 2014-04-14 | Cold extruding-forming mold for external spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103934296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845795A (en) * | 2020-12-28 | 2021-05-28 | 浙江格洛博机械科技股份有限公司 | Continuous spline forming equipment for inner hub of gearbox brake |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257920A (en) * | 1984-06-04 | 1985-12-19 | Nissan Motor Co Ltd | Method and device for extrusion molding of helical gear |
| CN2465831Y (en) * | 2000-07-07 | 2001-12-19 | 长春汽车材料研究所 | Long shaft end spline cold-extrusion forming mechanism |
| CN203380205U (en) * | 2013-07-16 | 2014-01-08 | 恒锋工具股份有限公司 | Involute spline cemented carbide extrusion die |
| CN103624148A (en) * | 2012-08-21 | 2014-03-12 | 欧自成 | Cold extrusion die for intermediate gear of one-way clutch |
| CN203875132U (en) * | 2014-04-14 | 2014-10-15 | 安徽省宁国市晨光汽车零部件有限公司 | External spline cold extrusion forming die |
-
2014
- 2014-04-14 CN CN201410148165.3A patent/CN103934296A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257920A (en) * | 1984-06-04 | 1985-12-19 | Nissan Motor Co Ltd | Method and device for extrusion molding of helical gear |
| CN2465831Y (en) * | 2000-07-07 | 2001-12-19 | 长春汽车材料研究所 | Long shaft end spline cold-extrusion forming mechanism |
| CN103624148A (en) * | 2012-08-21 | 2014-03-12 | 欧自成 | Cold extrusion die for intermediate gear of one-way clutch |
| CN203380205U (en) * | 2013-07-16 | 2014-01-08 | 恒锋工具股份有限公司 | Involute spline cemented carbide extrusion die |
| CN203875132U (en) * | 2014-04-14 | 2014-10-15 | 安徽省宁国市晨光汽车零部件有限公司 | External spline cold extrusion forming die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845795A (en) * | 2020-12-28 | 2021-05-28 | 浙江格洛博机械科技股份有限公司 | Continuous spline forming equipment for inner hub of gearbox brake |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |