CN202343841U - Precision forging and forming die for blank of differential case - Google Patents
Precision forging and forming die for blank of differential case Download PDFInfo
- Publication number
- CN202343841U CN202343841U CN2011205350836U CN201120535083U CN202343841U CN 202343841 U CN202343841 U CN 202343841U CN 2011205350836 U CN2011205350836 U CN 2011205350836U CN 201120535083 U CN201120535083 U CN 201120535083U CN 202343841 U CN202343841 U CN 202343841U
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- cylindrical hole
- hole
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- cylindrical
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Abstract
The utility model relates to a precision forging and forming die for the blank of a differential case, and belongs to the field of machining. According to the utility model, reasonable design is performed on a die structure, so that precision hot forging and forming for blank of the forging of the differential case is achieved. According to the structural characteristics of the forging, three steps of forming are designed, and three sets of dies respectively corresponding to blank forging, preforging and finish forging are included. A positioning function is well designed on the tool structure for deformation of preforging and finish forging, so as to be convenient for an operator to operate, and the probability of quality problem caused by accidental errors on operation is lowered.
Description
Technical field
The utility model relates to a kind of differential carrier blank precision forging shaping dies, belongs to field of machining.
Background technology
Differential carrier is a large amount of pass heavy mails that use of automobile, sees from structure, and be a kind of housing of approximate rotary type; Complexity coefficient is bigger, and the forging and molding difficulty is big, no matter on forging hammer or with forcing press, produce; Traditional technology is all taked the open die forging, impressing forging method; Be that mould all leaves gap bridge and burr storehouse on structural design, when guaranteeing moulding, also be used to store excess metal.Such production technology, high material consumption, finish-forging needs repeatedly to hit and could accomplish, and forging quality is unstable, and the possibility that offsetting, dimension overproof and forging wound appear in forging is bigger, and die life is lower.
Summary of the invention
The purpose of the utility model is to provide a kind of production efficiency height, good product quality, reduces material, energy waste, has realized the differential carrier blank precision forging shaping dies that precision forging is produced.
Technical solution:
The utility model comprises: base mould, blocking mould, finish-forging mould, and middle part, base lower mould upper surface has cylindrical hole, and the porch of last cylindrical hole is a cone shape; Middle part, patrix lower surface has down cylindrical hole, and following cylindrical hole porch is a cone shape; The profile of upper mould and counterdie is the circular turned body structure;
Blocking lower mould top is provided with first cylindrical hole, and first cylindrical hole below is provided with first round taper hole, and first bellmouth below is provided with second cylindrical hole, and second cylindrical hole below is provided with trapezoidal cylindrical hole, is provided with lower push rod in the trapezoidal cylindrical hole; The cylindrical of blocking upper mould bottom is a guide ledges, and boss is provided with ring-shaped cylinder shape groove, and ring-shaped cylinder shape just groove porch is taper, and the conicity of the following cylindrical hole of blocking lower mould first bellmouth and base upper mould is complementary; Blocking upper mould and blocking lower mould profile are the circular turned body structure;
Finish-forging lower mould top is provided with three cylindrical shape hole; Bottom, three cylindrical shape hole is provided with conical circular muscle; Be uniformly distributed with breach on the frusto-conical annular muscle circumference; The ring middle part of frusto-conical annular muscle is provided with the 4th cylindrical hole, and the 4th cylindrical hole below is provided with trapezoidal cylindrical hole, is provided with lower push rod in the trapezoidal cylindrical hole; Finish-forging upper mould lower surface is the two stage steps shape; The boss centre of first order step is provided with the step trapezoidal hole; Be provided with push rod in the step trapezoidal hole, be set with spring, pad, jump ring on the push rod, the boss of second level step is provided with the ring-type cone tank; Ring-type cone tank top is taper, and ring-type cone tank bottom is provided with cannelure.
The utility model through this forging structure is analyzed, has designed brand-new mould structure exactly, has realized the precision forging forming technology.Contrast traditional moulds structure, the finish-forging process has increased upper push rod structure, and then has cancelled the technology depanning gradient of forging, has reduced the material consumption of forging.In addition, seal, cancelled traditional gap bridge and burr chamber structure, realized that no burr forge at preparatory, finish forging process mould.Also fully take into account the inter process location in the mould structure design and to the allocation proportion of metal at each several part; Inter process conversion accurately location and final molding requirement have been guaranteed; Solidified operation, stablized process quality, reduced dependence to greatest extent operator's technical ability.In advance, the finish-forging mould structure improved the heat treatment performance of mold integral, improves nearly 3 times die life than traditional handicraft.
Description of drawings
Fig. 1 the utility model base die profile;
Fig. 2 the utility model blocking die profile;
Fig. 3 the utility model finish-forging shaping dies profile.
Specific embodiment
Fig. 1, Fig. 2, Fig. 3 are respectively the die profiles of base, blocking, three operations of finish-forging, and three mold profiles are the circular turned body structure.
The utility model comprises: base mould, blocking mould, finish-forging mould, and middle part, base lower mould upper surface has cylindrical hole 1, and the porch of last cylindrical hole 1 is a cone shape; Middle part, patrix lower surface has down cylindrical hole 2, and following cylindrical hole 2 porch are cone shape; The profile of upper mould and counterdie is the circular turned body structure;
Blocking lower mould top is provided with first cylindrical hole 3; First cylindrical hole, 3 belows are provided with first round taper hole 4; First bellmouth, 4 belows are provided with second cylindrical hole, 5, the second cylindrical holes, 5 belows and are provided with trapezoidal cylindrical hole 6, are provided with lower push rod 7 in the trapezoidal cylindrical hole 6; The cylindrical of blocking upper mould bottom is a guide ledges, and boss is provided with ring-shaped cylinder shape groove 8, and ring-shaped cylinder shape groove 8 porch are taper, and blocking lower mould first bellmouth 4 is complementary with the conicity of the following cylindrical hole 2 of base upper mould; Blocking upper mould and blocking lower mould profile are the circular turned body structure;
Finish-forging lower mould top is provided with three cylindrical shape hole 10; 10 bottoms, three cylindrical shape hole are provided with conical circular muscle 11; Be uniformly distributed with breach 12 on frusto-conical annular muscle 11 circumference; The ring middle part of frusto-conical annular muscle 11 is provided with the 4th cylindrical hole 13, the four cylindrical holes 13 belows and is provided with trapezoidal cylindrical hole 14, is provided with lower push rod 15 in the trapezoidal cylindrical hole 14; Finish-forging upper mould lower surface is the two stage steps shape; The boss centre of first order step is provided with step trapezoidal hole 16; Be provided with push rod 17 in the step trapezoidal hole 16, be set with spring, pad, jump ring on the push rod 17, the boss of second level step is provided with ring-type cone tank 18; Ring-type cone tank 18 tops are taper, and ring-type cone tank 18 bottoms are provided with cannelure 19.
Three molds are contained on same the forcing press; After the round bar shape metal stock is heated to initial forging temperature, put into the last cylindrical hole 1 of the counterdie of base mould, at this moment; The blank diameter of the somewhat larger in diameter of last cylindrical hole 1 after heating not only guaranteed the moulding requirement but also played the effect of location.Following cylindrical hole 2 diameters of patrix are identical with last cylindrical 1 diameter of counterdie, in case the blank end face is gradient, can also play the effect of correction.Press ram is once descending, under the effect of base mould upper die body and lower mold body, accomplishes the deformation operation to blank.
Through after the preforming, will be out of shape the blank upset and put into the blocker lower mode cavity for 180 °, yet the tapering of blank and the tapering of counterdie are complementary, and have played the effect of natural location, reduced because the uncertainty that operation causes.The deformation operation of the descending once more completion blocking of forcing press work step will be out of shape the back blank and in bed die, be ejected under the effect of lower push rod 7.
Blank behind the blocking is moved to finish-forging counterdie impression, be complementary, guaranteed that the moulding requirement plays positioning action again through blank lower end column part behind the blocking and the 4th cylindrical hole 13 of finish impression counterdie.After slide block is descending once more, realized the finish forging operation, under the effect of upper ejector pin 17, lower push rod 15, forging is separated from impression, has finally accomplished the forging molding process.
Claims (1)
1. differential carrier blank precision forging shaping dies comprises: base mould, blocking mould, finish-forging mould, it is characterized in that middle part, base lower mould upper surface has cylindrical hole (1), and the porch of last cylindrical hole (1) is a cone shape; Middle part, patrix lower surface has down cylindrical hole (2), and following cylindrical hole (2) porch is a cone shape; The profile of upper mould and counterdie is the circular turned body structure;
Blocking lower mould top is provided with first cylindrical hole (3); First cylindrical hole (3) below is provided with first round taper hole (4); First bellmouth (4) below is provided with second cylindrical hole (5); Second cylindrical hole (5) below is provided with trapezoidal cylindrical hole (6), is provided with lower push rod (7) in the trapezoidal cylindrical hole (6); The cylindrical of blocking upper mould bottom is a guide ledges, and boss is provided with ring-shaped cylinder shape hole (8), and porch, ring-shaped cylinder shape hole (8) is taper, and blocking lower mould first bellmouth (4) is complementary with the conicity of the following cylindrical hole (2) of base upper mould; Blocking upper mould and blocking lower mould profile are the circular turned body structure;
Finish-forging lower mould top is provided with three cylindrical shape hole (10); Bottom, three cylindrical shape hole (10) is provided with conical circular muscle (11); Be uniformly distributed with breach (12) on frusto-conical annular muscle (11) circumference; The ring middle part of frusto-conical annular muscle (11) is provided with the 4th cylindrical hole (13), and the 4th cylindrical hole (13) below is provided with trapezoidal cylindrical hole (14), is provided with lower push rod (15) in the trapezoidal cylindrical hole (14); Finish-forging upper mould lower surface is the two stage steps shape; The boss centre of first order step is provided with step trapezoidal hole (16); Be provided with push rod (17) in the step trapezoidal hole (16), push rod is set with spring, pad, jump ring on (17), and the boss of second level step is provided with ring-type cone tank (18); Ring-type cone tank (18) top is taper, and ring-type cone tank (18) bottom is provided with cannelure (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205350836U CN202343841U (en) | 2011-12-07 | 2011-12-07 | Precision forging and forming die for blank of differential case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205350836U CN202343841U (en) | 2011-12-07 | 2011-12-07 | Precision forging and forming die for blank of differential case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343841U true CN202343841U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205350836U Expired - Fee Related CN202343841U (en) | 2011-12-07 | 2011-12-07 | Precision forging and forming die for blank of differential case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343841U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138664A (en) * | 2017-06-26 | 2017-09-08 | 青岛勤德索具有限公司 | A kind of self-jacking type spine bar hot forged mould |
| CN115945625A (en) * | 2022-12-30 | 2023-04-11 | 江苏创一精锻有限公司 | Forging forming process of differential shell cover |
| CN117943502A (en) * | 2024-03-26 | 2024-04-30 | 山西重器机械制造有限公司 | Forging press for machining metal workpiece |
-
2011
- 2011-12-07 CN CN2011205350836U patent/CN202343841U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138664A (en) * | 2017-06-26 | 2017-09-08 | 青岛勤德索具有限公司 | A kind of self-jacking type spine bar hot forged mould |
| CN115945625A (en) * | 2022-12-30 | 2023-04-11 | 江苏创一精锻有限公司 | Forging forming process of differential shell cover |
| CN117943502A (en) * | 2024-03-26 | 2024-04-30 | 山西重器机械制造有限公司 | Forging press for machining metal workpiece |
| CN117943502B (en) * | 2024-03-26 | 2024-05-31 | 山西重器机械制造有限公司 | Forging press for machining metal workpiece |
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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 |
Granted publication date: 20120725 Termination date: 20141207 |
|
| EXPY | Termination of patent right or utility model |