CN107052213A - A kind of splined shaft forging die structure for closing forging - Google Patents
A kind of splined shaft forging die structure for closing forging Download PDFInfo
- Publication number
- CN107052213A CN107052213A CN201710235604.8A CN201710235604A CN107052213A CN 107052213 A CN107052213 A CN 107052213A CN 201710235604 A CN201710235604 A CN 201710235604A CN 107052213 A CN107052213 A CN 107052213A
- Authority
- CN
- China
- Prior art keywords
- lower mould
- outer ring
- forging
- nib
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to a kind of splined shaft forging die structure for closing forging, including upper mould outer ring, lower mould outer ring, it is provided with directly over described upper mould outer ring in T-shaped hole, the T-shaped hole and upper die punch is connected with by interference fit；The center of described lower mould outer ring is provided with through hole, is connected with lower mould inner ring by interference fit in the through hole, and the nib of spline shaft-like is provided with the center of described lower mould inner ring；The head end of described upper die punch is vertically imported at the upper end major part of the nib, and lower mould position length plate is located at the bottom of lower mould outer ring, and the hole being provided with the lower end body of rod of nib with lower mould position length plate center is communicated；On the inside of the described lower mould inner ring cavity plate suitable for reading being provided with immediately below upper mould outer ring, and use the spacing fixation of circular lock catch mode；It is former to use horizontal type level forging to need trimming after machining, without trimming after the completion of now being forged using vertical closing；Than having saved one of trimming process originally.
Description
Technical field
The invention belongs to forging die technical field, more particularly to a kind of splined shaft forging die structure for closing forging.
Background technology
Existing splined shaft hot-working is forged using 630T horizontal forging and upsetting machines, is horizontal forging processing (level forging processing), forging processing
As shown in Figure 1, forging die is made up of design of forging die gripper sleeve 7, clamping die 8, cavity plate 9, drift 10, and wherein cavity plate 9 is divided into,
Lower two identical semicircles；Clamping die 8 is also divided into, lower two identical semicircles.Using local heating, (head adds blank 6
Heat), the bar portion of blank 6 is put into gripper sleeve 7, when equipment drives clamping die 8, when cavity plate 9 opens, is put into blank 6
Equipment matched moulds after gripper sleeve 7, upper lower half circle is closed.Then drift 10 is moved, and pours the forging and molding of cavity plate 9.Most backlash is exited,
Equipment drives clamping die 8, cavity plate 9 to open, and will expect to take out using gripper sleeve 7.The splined shaft processed using the forging die, is deposited
In following shortcoming：
1st, longitudinal overlap of banding is generated in blank head (at two semicircle matched moulds), trimming is needed；While in order to prevent
The trimming deformation of blank, cold-trim(ming) is carried out after needing to wait for red material cooling again；
2nd, stock utilization is 90% or so；(the weight of weight/blanking of note stock utilization=forging；Cutting stock weight
Weight+the 0.5%-1% of weight+overlap of=forging hot burn out rate).
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and provide a kind of splined shaft forging die knot for closing forging
Structure.
The purpose of the present invention is completed by following technical solution, including upper mould outer ring, lower mould outer ring, and described is upper
It is provided with directly over mould outer ring in T-shaped hole, the T-shaped hole and upper die punch is connected with by interference fit；Described lower mould outer ring
Center be provided with through hole, lower mould inner ring is connected with by interference fit in the through hole, the center of described lower mould inner ring
The nib of spline shaft-like is provided with the heart；The head end of described upper die punch is vertically imported at the upper end major part of the nib, lower mould
Position length plate is located at the bottom of lower mould outer ring, and is provided with the lower end body of rod of nib with lower mould position length plate center
Hole is communicated；On the inside of the described lower mould inner ring cavity plate suitable for reading being provided with immediately below upper mould outer ring, and use circular lock catch side
The spacing fixation of formula.
Preferably, the magnitude of interference between described upper mould outer ring and upper die punch is 0.1-0.3MM, lower mould outer ring is with
The magnitude of interference between mould inner ring is 0.1-0.3MM.
Preferably, the depth that described upper die punch is imported at the upper end major part of nib is 15-18MM, gap is
0.4MM。
Preferably, the lock gap between being surveyed in described lower mould inner ring mould outer ring suitable for reading and upper is 0.4MM, lock is high
Spend for 40MM.
Preferably, the diameter at the lower end body of rod of described nib and hole that lower mould position length plate center is provided with
Than the big 0.8-1MM of diameter of steel billet.
Beneficial effects of the present invention are：Using closing forging, non-trimming is produced, without trimming, is reduced by one of trimming process, is subtracted
The consumption of few electric energy, improves personnel's efficiency；Except hot burn out rate, the weight of blanking bar is the weight of forging, material use
Rate brings up to more than 99%.
Brief description of the drawings
Fig. 1 is existing forging die structural representation.
Fig. 2 is the forging die structural representation of the present invention.
Label in accompanying drawing is respectively：1st, upper mould outer ring；2nd, upper die punch；3rd, lower mould position length plate；4th, lower mould outer ring；
5th, lower mould inner ring；6th, blank；7th, gripper sleeve；8th, clamping die；9th, cavity plate；10th, drift；31st, hole；51st, nib.
Embodiment
Below in conjunction with accompanying drawing, 2 couples of present invention do detailed introduction：The present invention includes upper mould outer ring 1, lower mould outer ring 4, institute
It is provided with directly over the upper mould outer ring 1 stated in T-shaped hole, the T-shaped hole and upper die punch 2 is connected with by interference fit；Described
The center of lower mould outer ring 4 is provided with through hole, the through hole and is connected with lower mould inner ring 5, described lower mould by interference fit
The nib 51 of spline shaft-like is provided with the center of inner ring 5；The head end of described upper die punch 2 is vertically imported in the nib 51
At the major part of upper end, lower mould position length plate 3 is located at the bottom of lower mould outer ring 4, can be stretched in lower mould position length plate 3；
And the hole 31 being provided with the lower end body of rod of nib 51 with the lower center of mould position length plate 3 is communicated；On described lower mould inner ring 5
Mouth is located on the inside of the cavity plate being provided with immediately below upper mould outer ring 1, and uses the spacing fixation of circular lock catch mode.The forging die structure is fitted
For electric screw press and friction press.
The magnitude of interference between described upper mould outer ring 1 and upper die punch 2 is 0.1-0.3MM, prevents mould from moving.On wherein
The extension shelves size of stamping first 2 is the diameter+30MM of upper die punch 2, and thickness is 10~20, prevents mould from dropping.
The magnitude of interference between lower mould outer ring 4 and lower mould inner ring 5 is 0.1-0.3MM, prevents lower mould from moving.
The depth that described upper die punch 2 is imported at the upper end major part of nib 51 is 15-18MM, and gap is 0.4MM.
Upper end diameter at butt end-the 0.4MM of the nib 51 of a diameter of lower mould inner ring 5 of upper die punch 2, makes gap remain at 0.4mm；
The gradient of part below the lower major part of mould inner ring 5 is 0.5 °, makes the demoulding of forging easy.
Lock gap between being surveyed in described lower mould inner ring 5 mould outer ring 1 suitable for reading and upper is 0.4MM, and lock height is
40MM。
The diameter at the lower end body of rod of described nib 51 and hole 31 that the lower center of mould position length plate 3 is provided with compares steel
The big 0.8-1MM of diameter of base.And forging is head local heating, bar portion is not involved in deformation.
It is understood that it will be understood by those skilled in the art that being subject to technical scheme and inventive concept
It should all belong to the protection domain of appended claims of the invention with replacing or changing.
Claims (5)
1. a kind of splined shaft forging die structure for closing forging, including upper mould outer ring (1), lower mould outer ring (4), it is characterised in that：It is described
Upper mould outer ring (1) directly over be provided with T-shaped hole, upper die punch (2) is connected with by interference fit in the T-shaped hole；It is described
The center of lower mould outer ring (4) be provided with through hole, lower mould inner ring (5) is connected with by interference fit in the through hole, it is described
Lower mould inner ring (5) center at be provided with spline shaft-like nib (51)；The head end of described upper die punch (2) is vertically imported
At the upper end major part of the nib (51), lower mould position length plate (3) is located at the bottom of lower mould outer ring (4), and nib (51)
The hole (31) being provided with the body of rod of lower end with lower mould position length plate (3) center is communicated；Described lower mould inner ring (5) position suitable for reading
On the inside of the cavity plate being provided with immediately below upper mould outer ring (1), and use the spacing fixation of circular lock catch mode.
2. the splined shaft forging die structure of closing forging according to claim 1, it is characterised in that：Described upper mould outer ring (1)
The magnitude of interference between upper die punch (2) is 0.1-0.3MM, and the magnitude of interference between lower mould outer ring (4) and lower mould inner ring (5) is
0.1-0.3MM。
3. the splined shaft forging die structure of closing forging according to claim 1, it is characterised in that：Described upper die punch (2)
The depth imported at the upper end major part of nib (51) is 15-18MM, and gap is 0.4MM.
4. the splined shaft forging die structure of closing forging according to claim 1, it is characterised in that：Described lower mould inner ring (5)
Lock gap between being surveyed in suitable for reading and upper mould outer ring (1) is 0.4MM, and lock height is 40MM.
5. the splined shaft forging die structure of closing forging according to claim 1, it is characterised in that：Under described nib (51)
The diameter big 0.8-1MM of the diameter than steel billet at side pole body and hole (31) that lower mould position length plate (3) center is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235604.8A CN107052213A (en) | 2017-04-12 | 2017-04-12 | A kind of splined shaft forging die structure for closing forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235604.8A CN107052213A (en) | 2017-04-12 | 2017-04-12 | A kind of splined shaft forging die structure for closing forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107052213A true CN107052213A (en) | 2017-08-18 |
Family
ID=59603170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235604.8A Pending CN107052213A (en) | 2017-04-12 | 2017-04-12 | A kind of splined shaft forging die structure for closing forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107052213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453310A (en) * | 2020-10-30 | 2021-03-09 | 重庆传动轴股份有限公司 | Forging process of energy-saving rear spline shaft |
| CN112536413A (en) * | 2020-11-02 | 2021-03-23 | 无锡昌至盛机械制造有限公司 | Integrated production process of lower end hardware fitting and forging die thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002035886A (en) * | 2000-07-26 | 2002-02-05 | Honda Motor Co Ltd | Forming method of shaft and device therefor |
| CN202097345U (en) * | 2011-06-20 | 2012-01-04 | 重庆创精温锻成型有限公司 | Hot forging mould for auto automatic transmission output spline shaft |
| CN202316878U (en) * | 2011-11-23 | 2012-07-11 | 十堰园钧工贸有限公司 | Extrusion molding device for fork half shaft of automobile |
| CN204657377U (en) * | 2015-05-12 | 2015-09-23 | 全椒金正奇交通设备有限责任公司 | Rear splined shaft forge die |
| CN105170858A (en) * | 2015-09-29 | 2015-12-23 | 万向钱潮传动轴有限公司 | Spline shaft hot forging device |
-
2017
- 2017-04-12 CN CN201710235604.8A patent/CN107052213A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002035886A (en) * | 2000-07-26 | 2002-02-05 | Honda Motor Co Ltd | Forming method of shaft and device therefor |
| CN202097345U (en) * | 2011-06-20 | 2012-01-04 | 重庆创精温锻成型有限公司 | Hot forging mould for auto automatic transmission output spline shaft |
| CN202316878U (en) * | 2011-11-23 | 2012-07-11 | 十堰园钧工贸有限公司 | Extrusion molding device for fork half shaft of automobile |
| CN204657377U (en) * | 2015-05-12 | 2015-09-23 | 全椒金正奇交通设备有限责任公司 | Rear splined shaft forge die |
| CN105170858A (en) * | 2015-09-29 | 2015-12-23 | 万向钱潮传动轴有限公司 | Spline shaft hot forging device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453310A (en) * | 2020-10-30 | 2021-03-09 | 重庆传动轴股份有限公司 | Forging process of energy-saving rear spline shaft |
| CN112536413A (en) * | 2020-11-02 | 2021-03-23 | 无锡昌至盛机械制造有限公司 | Integrated production process of lower end hardware fitting and forging die thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |