CN213997657U - Energy-saving forging die for rear spline shaft - Google Patents
Energy-saving forging die for rear spline shaft Download PDFInfo
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- CN213997657U CN213997657U CN202022481115.0U CN202022481115U CN213997657U CN 213997657 U CN213997657 U CN 213997657U CN 202022481115 U CN202022481115 U CN 202022481115U CN 213997657 U CN213997657 U CN 213997657U
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Abstract
The utility model relates to the technical field of transmission shaft production devices, in particular to an energy-saving rear spline shaft forging die, which comprises a lower backing plate and a lower forming die, wherein the lower backing plate is fixedly connected with the lower forming die; the lower molding die is provided with a die cavity and also comprises an ejector rod communicated with the die cavity. The die can be suitable for forging the energy-saving spline shaft.
Description
Technical Field
The utility model relates to a transmission shaft apparatus for producing technical field, concretely relates to energy-conserving back integral key shaft forges mould.
Background
The transmission shaft is an important part for transmitting power in an automobile transmission system, and the transmission shaft, a gearbox and a drive axle are used for transmitting the power of an engine to wheels so that an automobile generates driving force. The transmission shaft consists of a shaft tube, a telescopic sleeve and a universal joint, and the telescopic sleeve can automatically adjust the change of the distance between the transmission and the drive axle. The universal joint ensures the change of the included angle between two axes of the output shaft of the speed changer and the input shaft of the drive axle and realizes the equal angular speed transmission of the two shafts.
The spline shaft is one of mechanical transmission, and has the structure that a longitudinal key groove is arranged on the outer surface of the shaft, and a rotating part sleeved on the shaft is also provided with a corresponding key groove which can keep rotating synchronously with the shaft. The spline shaft can longitudinally slide on the shaft while rotating, and can be applied to automobile power transmission shaft systems, steering mechanisms and the like. The rear spline shaft is an important component of the transmission shaft. The rear spline shaft is generally produced by a forging technology, and in the prior art, when the rear spline shaft is forged, the whole rear spline shaft needs to be heated. The applicant finds in actual production that the rear spline shaft does not need to be heated completely during forging, only the part of the shaft end of the rear spline shaft needing to be forged is heated, and other parts which do not need to be forged are heated to cause energy waste, while the existing die for the rear spline shaft cannot be suitable for machining the existing energy-saving rear spline shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-conserving back integral key shaft forges mould adopts this mould can be applicable to the forging of energy-conserving back integral key shaft.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an energy-saving forging die for a spline shaft comprises a lower base plate and a lower forming die, wherein the lower base plate is fixedly connected with the lower forming die; the lower molding die is provided with a die cavity and also comprises an ejector rod communicated with the die cavity.
Furthermore, the ejector rod is in a convex shape, and the lower backing plate is provided with a through hole.
Further, still include the fixed part, the shaping lower mould passes through fixed part and lower bolster connection.
Furthermore, a connecting plate is arranged on the circumferential direction of the lower forming die.
Further, the fixing part comprises a stud and a nut, the connecting plate is provided with a connecting hole, one end of the stud penetrates through the connecting hole and is fixedly connected with the lower backing plate, and the other end of the stud is in threaded connection with the nut.
Further, the number of the fixing parts is plural.
Further, the number of the fixing portions is three.
Furthermore, three fixed parts are evenly arranged along the lower forming die.
Further, the device also comprises a lower molding die base plate, wherein the lower molding die base plate is positioned between the lower molding die and the lower base plate.
Further, the lower die base plate is fixedly connected with the lower base plate through the socket head cap screws.
The principle and the beneficial effect of this scheme of adoption lie in: the mould of this scheme of adoption, when forging energy-conserving back integral key shaft, only need heat the tip of back integral key shaft, then place the integral key shaft after will heating in the die cavity of mould, forge through forging the mechanism can. Compared with the mold in the prior art, the mold adopting the scheme has the advantage that the ejection distance of the ejector rod is shortened.
Drawings
Fig. 1 is a top view of a first embodiment of an energy-saving rear spline forging die of the present invention;
fig. 2 is a sectional view taken along the line a in fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a lower backing plate 1, a stud 2, a screw 3, a mandril 4, a nut 5, a lower forming die 6, a connecting plate 7, a lower forming backing plate 8, a through hole 9 and a die cavity 10.
The embodiment is basically as shown in the attached figures 1 and 2: the utility model provides an energy-conserving back integral key shaft forges mould, includes lower bolster 1 and shaping lower mould 6, and lower bolster 1 center department is equipped with through-hole 9. The lower forming die 6 is connected with the lower cushion plate 1 through fixing portions, the number of the fixing portions is multiple, the number of the fixing portions in the embodiment is three, and the three fixing portions are evenly arranged along the circumferential direction of the lower forming die 6. A connecting plate 7 is arranged on the periphery of the lower forming die 6, and the connecting plate 7 and the lower forming die 6 can be connected in a welding mode; the cross section of the connecting plate 7 is circular. Specifically, the fixing portion comprises a stud 2 and a nut 5, the connecting plate 7 is provided with connecting holes, and the connecting holes are evenly formed in the circumferential direction of the connecting plate 7. One end of the stud 2 penetrates through the connecting hole and is in threaded connection with the lower backing plate 1, and the other end of the stud 2 is in threaded connection with the nut 5.
The forming device further comprises a forming lower die base plate 8, and the forming lower die base plate 8 is located between the forming lower die 6 and the lower backing plate 1. And the lower die base plate 8 is fixedly connected with the lower base plate 1 through the socket head cap screws 3. The bearing strength of the lower forming die 6 can be improved by arranging the lower forming die base plate 8.
The lower molding die 6 is internally provided with a die cavity 10, and the die in the embodiment further comprises a mandril 4 communicated with the die cavity 10. The ejector rod 4 is in a convex shape, specifically, the ejector rod 4 comprises a fixed block and a rod body, and the fixed block and the rod body are integrally formed; the fixed block is abutted against the lower backing plate 1, and the cross sectional area of the fixed block is larger than that of the through hole 9. One end of the rod body, which is far away from the fixed block, faces the die cavity 10, and the central line of the rod body is superposed with the axis of the through hole 9.
The mould of this scheme of adoption, when forging energy-conserving back integral key shaft, only need heat the tip of back integral key shaft, then place the back integral key shaft after will heating in the die cavity 10 of mould, the part that the back integral key shaft is heated is located the mould left end, through forge the mechanism forge can. After the forging is finished, the ejector rod 4 is applied with force through the through hole 9, and the rear spline shaft is ejected out by the ejector rod 4. Because the rear spline shaft right-hand member is not heated, when doing full work through ejector pin 4, also can not lead to rear spline shaft right-hand member to warp. Compared with the die in the prior art, the die of the scheme is suitable for the existing forging process of the energy-saving rear spline shaft because only the end part of the rear spline shaft needs to be forged, the rear spline shaft is short in processing part by the rear spline die, and the ejection distance of the ejector rod 4 is correspondingly shortened.
Example two
The difference between this embodiment and the first embodiment is that, in this embodiment, the number of the fixing portions is four, and the four fixing portions are uniformly arranged along the circumferential direction of the connecting plate 7. Thus, the joining strength between the lower mold 6 and the lower mat 1 can be made higher.
The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The utility model provides an energy-conserving back integral key shaft forges mould which characterized in that: the lower base plate is fixedly connected with the lower forming die; the lower molding die is provided with a die cavity and also comprises an ejector rod communicated with the die cavity.
2. The energy-saving forging die for the spline shaft after being forged according to claim 1, wherein: the ejector rod is in a convex shape, and the lower backing plate is provided with a through hole.
3. The energy-saving forging die for the spline shaft after being forged according to claim 2, wherein: the lower forming die is connected with the lower backing plate through the fixing portion.
4. The energy-saving forging die for the spline shaft after being forged according to claim 3, wherein: and a connecting plate is arranged on the periphery of the lower forming die.
5. The energy-saving forging die for the spline shaft after being forged according to claim 4, wherein: the fixing part comprises a stud and a nut, the connecting plate is provided with a connecting hole, one end of the stud penetrates through the connecting hole and is fixedly connected with the lower backing plate, and the other end of the stud is in threaded connection with the nut.
6. The energy-saving forging die for the spline shaft after being forged according to claim 5, wherein: the number of the fixing parts is multiple.
7. The energy-saving forging die for the spline shaft after being forged according to claim 6, wherein: the number of the fixing parts is three.
8. The energy-saving forging die for the spline shaft after being forged according to claim 7, wherein: the three fixing parts are uniformly arranged along the forming lower die.
9. The energy-saving forging die for the spline shaft after being forged according to claim 8, wherein: the die further comprises a lower forming die base plate, and the lower forming die base plate is located between the lower forming die and the lower base plate.
10. The energy-saving forging die for the spline shaft after being forged according to claim 9, wherein: the lower die base plate is fixedly connected with the lower base plate through the socket head cap screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481115.0U CN213997657U (en) | 2020-10-30 | 2020-10-30 | Energy-saving forging die for rear spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481115.0U CN213997657U (en) | 2020-10-30 | 2020-10-30 | Energy-saving forging die for rear spline shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213997657U true CN213997657U (en) | 2021-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022481115.0U Active CN213997657U (en) | 2020-10-30 | 2020-10-30 | Energy-saving forging die for rear spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213997657U (en) |
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2020
- 2020-10-30 CN CN202022481115.0U patent/CN213997657U/en active Active
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