CN202715761U - Friction screw press round mold frame - Google Patents
Friction screw press round mold frame Download PDFInfo
- Publication number
- CN202715761U CN202715761U CN 201220391208 CN201220391208U CN202715761U CN 202715761 U CN202715761 U CN 202715761U CN 201220391208 CN201220391208 CN 201220391208 CN 201220391208 U CN201220391208 U CN 201220391208U CN 202715761 U CN202715761 U CN 202715761U
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- CN
- China
- Prior art keywords
- counterdie
- backing plate
- lower mold
- lower joint
- joint chair
- 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.)
- Expired - Lifetime
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- 238000005242 forging Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a friction screw press round mold frame which comprises a lower mold holder, a lower mold base plate, a precision forging lower mold, a lower mold stress ring and a lower press ring, wherein a lower connection seat is provided with a cone-shaped through hole, and the lower connection seat is sleeved on the outside of the lower mold base plate and is in interference fit with the lower mold base plate through the conical surface. The lower connection seat is fixed on the upper surface of the lower mold holder, the upper surface of the lower mold base plate is provided with a groove, a base plate insert is placed inside the groove, and the precision forging lower mold is fixed on the upper surface of the lower mold base plate. The upper surface of the precision forging lower mold is provided with a mold cavity, the lower mold stress ring is sleeved on the outside surface of the precision forging lower mold and is interference fit with the precision forging lower mold through the conical surface, the lower mold press ring is sleeved on the outside surface of the lower mold stress ring and in interference fit with the lower mold stress ring through the conical surface, and the lower mold press ring is fixedly connected with the lower connection seat thorough bolts. The friction screw press round mold frame is difficult to deform, long in service life and low in cost.
Description
Technical field
The utility model relates to a kind of friction press circle mould mould bases.
Background technology
There is following defective in existing friction press circle mould mould bases: (one) counterdie backing plate is connected with die shoe and is connected up and down with positioning convex by locating slot, between counterdie backing plate and the finish forge counterdie small raft is set, in forging process, small raft, counterdie backing plate and die shoe all only are subject to a hitting power vertically downward, after using a couple of days, small raft will produce cracking or distortion, need to often change or reprocess small raft (monthly average is changed 3 of small rafts), thereby have a strong impact on forging and expended more auxiliary material; (2) since the hardness of die shoe less than the hardness of small raft, and the die shoe outside dimension is more than 4 times of its gauge, when the hitting power that is subject to vertically downward, die shoe will form the plastic deformation of central compression, cylindrical tension, its baseplane is subjected to the impact of deformation to form arch (high, low namely) all around, cause die shoe and the contacted plane of counterdie backing plate to form the circular arc depression thereupon, use if mould bases is long-term, the deformation of die shoe and counterdie backing plate increases the weight of until damage thereupon, even brings disaster to the damage of equipment and working plate; (3) finish forge counterdie and small raft are connected by locating slot and positioning convex, because the finish forge counterdie has locating slot at its baseplane central part, make its strength decreased, bottom because of locating slot has the stress that produces after machined and the heat treatment again, thereby cracking easily appears in mould when causing forging, reduces the mold use life-span.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists, and a kind of not yielding, long service life, friction press circle mould mould bases that cost is low are provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of friction press circle mould mould bases, comprise die shoe, the counterdie backing plate, the finish forge counterdie, counterdie circle stress and counterdie trim ring, described counterdie backing plate is fixed on the die shoe upper surface by lower joint chair, has a conical through-hole on the described lower joint chair, described counterdie backing plate has the profile that matches with the upper conical shape of through holes of lower joint chair, described lower joint chair is enclosed within the counterdie backing plate outside and upward cooperates by adopting conical surface interference, described lower joint chair and die shoe are fixed by locating slot and positioning convex matched in clearance and by screw, has a groove on the described counterdie backing plate upper surface, being placed with backing plate in this groove inserts, described finish forge counterdie is fixed on the upper surface of counterdie backing plate, insert with backing plate with the counterdie backing plate and contact in this finish forge counterdie bottom surface, and this finish forge counterdie bottom surface has positioning convex, counterdie backing plate upper surface has locating slot, finish forge counterdie and counterdie backing plate are by positioning convex and locating slot matched in clearance, has mold cavity on the upper surface of described finish forge counterdie, described counterdie circle stress is enclosed within on the finish forge counterdie lateral surface and cooperates by adopting conical surface interference, described counterdie trim ring is enclosed within on the counterdie circle stress lateral surface and cooperates by adopting conical surface interference, and described counterdie trim ring is fixedly connected with lower joint chair by screw.
The baseplane of described counterdie backing plate is higher than the baseplane of lower joint chair, and the difference in height scope between this two baseplane is 0.6～1mm.
The outside dimension of described counterdie backing plate and the ratio range of its gauge are 2～2.3.
Described backing plate is inserted and is embedded in counterdie backing plate interference fit.
Beneficial effect: (one) lower joint chair and counterdie backing plate adopt adopting conical surface interference to cooperate, the baseplane of the baseplane of counterdie backing plate and lower joint chair maintains the distance of 0.6mm～1mm, when mould bases is subject to vertically downward hitting power, the counterdie backing plate is done a small amount of movement downwards, to strengthen the magnitude of interference of itself and lower joint chair cone match, thereby increase the radially prestressing force between two parts, because two parts adopt cone match, therefore the hitting power that the counterdie backing plate can be born resolves into a component vertically downward and a component vertical with the conical surface, the radially prestressing force between two parts can be eliminated most conical surface vertical stress component; The ratio of counterdie backing plate outside dimension and its gauge is controlled between 2～2.3, can reduces the strain of counterdie backing plate; Lower joint chair and die shoe are fixed by locating slot and positioning convex matched in clearance and by screw; Above improvement has all prolonged the service life of counterdie backing plate, lower joint chair and die shoe simultaneously.
(2) finish forge counterdie cancellation locating slot, the locating slot of using instead on positioning convex and the counterdie backing plate is connected, thereby has improved the intensity of finish forge counterdie, has prolonged its service life.
(3) the small raft structure in the former mould bases of cancellation adopts backing plate to insert and is embedded in counterdie backing plate interference fit, when the finish forge counterdie bears hitting power, can delay the plastic deformation of counterdie backing plate and the service life of prolongation finish forge counterdie.
(4) finish forge counterdie, counterdie circle stress and counterdie trim ring are combined into a cover edge formula mould, the counterdie trim ring by screw fastening on lower joint chair, the pressure that produces is so that the conical surface that this cover edge formula mould passes through separately forms interference fit, and produce one to the radially prestressing force of mold center, ftracture in early days to prevent the finish forge counterdie.
In sum: coming into operation of this mould bases, can make nearly 2 times of mould bases Service life, the finish forge counterdie improves 10%～15% service life; Owing to having cancelled the small raft structure of former mould bases, correspondingly saved a lot of human and material resources and time, every cover mould bases can be saved about 2300 yuan of small raft costs per month.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of preferred embodiment of the present utility model.
Wherein: 1, die shoe; 2, counterdie backing plate; 3, finish forge counterdie; 31, mold cavity; 4, counterdie circle stress; 5, counterdie trim ring; 6, lower joint chair; 7, backing plate is inserted; 8, screw.
The specific embodiment
A kind of friction press circle mould mould bases as shown in Figure 1 comprises die shoe 1, counterdie backing plate 2, finish forge counterdie 3, counterdie circle stress 4 and counterdie trim ring 5.Described counterdie backing plate 2 is fixed on die shoe 1 upper surface by lower joint chair 6, has a conical through-hole on the described lower joint chair 6, described counterdie backing plate 2 has the profile that matches with lower joint chair 6 upper conical shape of through holes, described lower joint chair 6 is enclosed within on counterdie backing plate 2 outsides and cooperates by adopting conical surface interference, the baseplane of described counterdie backing plate 2 is higher than the baseplane of lower joint chair 6, and the difference in height scope between this two baseplane is 0.6～1mm.Described lower joint chair 6 and die shoe 1 are fixed by locating slot and positioning convex matched in clearance and by screw.Have a groove on described counterdie backing plate 2 upper surfaces, be placed with backing plate in this groove and insert 7, this backing plate is inserted and 7 is embedded in counterdie backing plate 2 interference fit.Described finish forge counterdie 3 is fixed on the upper surface of counterdie backing plate 2, these finish forge counterdie 3 bottom surfaces and counterdie backing plate 2 and backing plate are inserted and 7 are contacted, and these finish forge counterdie 3 bottom surfaces have positioning convex, counterdie backing plate 2 upper surfaces have locating slot, and finish forge counterdie 3 and counterdie backing plate 2 are by positioning convex and locating slot matched in clearance.Has mold cavity 31 on the upper surface of described finish forge counterdie 3.Described counterdie circle stress 4 is enclosed within on finish forge counterdie 3 lateral surfaces and cooperates by adopting conical surface interference, and described counterdie trim ring 5 is enclosed within on counterdie circle stress 4 lateral surfaces and cooperates by adopting conical surface interference, and described counterdie trim ring 5 is fixedly connected with lower joint chair 6 by screw 8.
The outside dimension of described counterdie backing plate 2 and the ratio range of its gauge are 2～2.3.
Should be appreciated that specific embodiment described above only is used for explaining the utility model, and be not used in restriction the utility model.The apparent variation of being extended out by spirit of the present utility model or change still are among the protection domain of the present utility model.
Claims (4)
1. a friction press is justified the mould mould bases, it is characterized in that: comprise die shoe (1), counterdie backing plate (2), finish forge counterdie (3), counterdie circle stress (4) and counterdie trim ring (5), described counterdie backing plate (2) is fixed on die shoe (1) upper surface by lower joint chair (6), has a conical through-hole on the described lower joint chair (6), described counterdie backing plate (2) has the profile that matches with the upper conical shape of through holes of lower joint chair (6), described lower joint chair (6) is enclosed within on counterdie backing plate (2) outside and cooperates by adopting conical surface interference, described lower joint chair (6) and die shoe (1) are fixed by locating slot and positioning convex matched in clearance and by screw, has a groove on described counterdie backing plate (2) upper surface, be placed with backing plate insert (7) in this groove, described finish forge counterdie (3) is fixed on the upper surface of counterdie backing plate (2), this finish forge counterdie (3) bottom surface and counterdie backing plate (2) insert with backing plate (7) contact, and this finish forge counterdie (3) bottom surface has positioning convex, counterdie backing plate (2) upper surface has locating slot, finish forge counterdie (3) and counterdie backing plate (2) are by positioning convex and locating slot matched in clearance, has mold cavity (31) on the upper surface of described finish forge counterdie (3), described counterdie circle stress (4) is enclosed within on finish forge counterdie (3) lateral surface and cooperates by adopting conical surface interference, described counterdie trim ring (5) is enclosed within on counterdie circle stress (4) lateral surface and cooperates by adopting conical surface interference, and described counterdie trim ring (5) is fixedly connected with lower joint chair (6) by screw (8).
2. friction press according to claim 1 is justified the mould mould bases, and it is characterized in that: the baseplane of described counterdie backing plate (2) is higher than the baseplane of lower joint chair (6), and the difference in height scope between this two baseplane is 0.6～1mm.
3. friction press according to claim 1 is justified the mould mould bases, and it is characterized in that: the outside dimension of described counterdie backing plate (2) and the ratio range of its gauge are 2～2.3.
4. friction press according to claim 1 circle mould mould bases is characterized in that: described backing plate insert (7) be embedded in counterdie backing plate (2) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391208 CN202715761U (en) | 2012-08-09 | 2012-08-09 | Friction screw press round mold frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391208 CN202715761U (en) | 2012-08-09 | 2012-08-09 | Friction screw press round mold frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202715761U true CN202715761U (en) | 2013-02-06 |
Family
ID=47617599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391208 Expired - Lifetime CN202715761U (en) | 2012-08-09 | 2012-08-09 | Friction screw press round mold frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202715761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209436A (en) * | 2014-08-29 | 2014-12-17 | 偃师市华信机械有限公司 | Forging device used for round die |
| CN105499463A (en) * | 2015-12-28 | 2016-04-20 | 无锡透平叶片有限公司 | Large rectangular mould base structure with prestressed edge |
-
2012
- 2012-08-09 CN CN 201220391208 patent/CN202715761U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209436A (en) * | 2014-08-29 | 2014-12-17 | 偃师市华信机械有限公司 | Forging device used for round die |
| CN105499463A (en) * | 2015-12-28 | 2016-04-20 | 无锡透平叶片有限公司 | Large rectangular mould base structure with prestressed edge |
| CN105499463B (en) * | 2015-12-28 | 2018-10-02 | 无锡透平叶片有限公司 | A kind of large-scale rectangular die holder structure with prestressing force flanging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213164 No.26 Longcheng West Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Longcheng Precision Forging Group Co.,Ltd. Address before: 213164 No.26 Longcheng West Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: JIANGSU LONGCHENG PRECISION FORGING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |