CN210686744U - Novel light-weight structure of transmission shaft end face tooth flange fork forging - Google Patents
Novel light-weight structure of transmission shaft end face tooth flange fork forging Download PDFInfo
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- CN210686744U CN210686744U CN201921235227.9U CN201921235227U CN210686744U CN 210686744 U CN210686744 U CN 210686744U CN 201921235227 U CN201921235227 U CN 201921235227U CN 210686744 U CN210686744 U CN 210686744U
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Abstract
A novel light-weight structure of a transmission shaft end face tooth flange fork forging comprises a connecting flange and two fork lugs, wherein an arched connecting rib is arranged between the lower portions of the two fork lugs, the inner side of the upper end of each fork lug is of a curved surface transition step structure, a groove is formed in the inner side of each fork lug around the central line of each fork lug, and the bottom surface of each groove and the inner side surface of the upper end of each fork lug above the curved surface transition step structure are located on the same plane. The utility model discloses having optimized the product structure, having reduced the power of taking shape, having favorable to dark die cavity to take shape, reduce the damage to equipment, reduce the phenomenon that the mould ftractures in forging process, improved the yield of forging product, also alleviateed workman's intensity of labour simultaneously, improved the metalworking speed, reduced the cutter consumption.
Description
Technical Field
The utility model belongs to the technical field of auto industry accessories, concretely relates to transmission shaft end face tooth flange fork forging lightweight new construction.
Background
The structure of current terminal surface tooth flange fork forging is shown in fig. 1 and 2, including flange 1 and two fork ears 2, be equipped with bow-shaped splice bar 4 between two fork ear 2 lower parts, the upper end inboard of fork ear 2 is curved surface transition stair structure 3 (A department in fig. 1), and this curved surface transition stair structure 3 has following problem: when the metal flows to 2 portions of fork ear upper ends of metal in the mould in forging process, only after the metal of 3 departments of curved surface transition stair structure is full of, the metal just can flow to 2 portions of fork ear upper ends, and 3 below of curved surface transition stair structure are 38.7mm along 2 center line direction of fork ear's fork ear 2 thickness, thickness is thick, the flow speed of metal has been hindered, the resistance that the metal flows has been increased, easily cause 2 portions of top starvation of end face tooth flange fork forging fork ear, the black skin phenomenon easily appears in two 2 upper ends of fork ear outsides of forging in the gold course of working, the forging rejection rate is high.
In addition, the thickness of the fork lug 2 part at the central line of the fork lug 2 is 38.7mm, so that the gold processing production efficiency is influenced, the cutter consumption is increased, and the production process cost is increased in the process of gold processing U-shaped lug hole drilling.
In order to fill the top ends of the fork lugs 2 of the end face tooth flange fork forging, a worker needs to increase the blank weight and the equipment forming force to enable the produced forging to meet the requirements, but the method brings a more serious result, so that the stress concentration of the die corresponding to the top ends of the fork lugs 2 of the end face tooth flange fork is realized, cracks are generated on the die at the position about 500, the worker needs to repeatedly polish the die cracks at the position, the service life of the die is shortened, and the equipment maintenance frequency is increased due to the large forming force.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a light-weighted new construction of transmission shaft end face tooth bead fork forging of light in weight, with low costs, the shaping of being convenient for, improve the yield and improve the mould life-span.
In order to solve the technical problem, the utility model adopts the following technical scheme: a novel light-weight structure of a transmission shaft end face tooth flange fork forging comprises a connecting flange and two fork lugs, wherein an arched connecting rib is arranged between the lower portions of the two fork lugs, the inner side of the upper end of each fork lug is of a curved surface transition step structure, a groove is formed in the inner side of each fork lug around the central line of each fork lug, and the bottom surface of each groove and the inner side surface of the upper end of each fork lug above the curved surface transition step structure are located on the same plane.
The thickness from the bottom surface of the groove to the outer side surface of the fork lug along the central line direction of the fork lug is 27.1 mm.
The upper part of the groove divides the curved surface transition step structure into two symmetrical parts.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
1. the grooves are formed in the inner sides of the fork lugs, so that the product structure is optimized, the forming force is reduced, deep cavity forming is facilitated, the damage to equipment is reduced, and the finished product rate of forged products is improved;
2. the weight of the improved forging is reduced by 0.2Kg, and the labor intensity of workers is reduced to a certain extent;
3. the arrangement of the grooves reduces the storage amount of metal at the position, facilitates the metal to flow to the top ends of the fork lugs of the end face tooth flange yoke, improves the forming rate and the material utilization rate of the forge piece, reduces the forming force of the forge piece, and reduces the cracking phenomenon of a die in the forging process;
4. the size of recess is set up according to the diameter of U drill lug hole, and the thickness of the fork ear portion along fork ear central line is reduced to 27.1mm by 38.7mm, and the degree of depth of recess is 11.6mm promptly, has improved the gold processing rate, has reduced the cutter consumption.
Drawings
FIG. 1 is a schematic front view of a conventional drive shaft end face tooth flange yoke forging;
FIG. 2 is a schematic side view of a prior art drive shaft face tooth flange yoke forging;
fig. 3 is a schematic front structural view of the present invention;
fig. 4 is a schematic side view of the present invention.
Detailed Description
As shown in fig. 3 and 4, the utility model discloses a transmission shaft end face tooth flange fork forging lightweight new construction, including flange 1 and two fork ears 2, be equipped with bow-shaped splice bar 4 between 2 lower parts of two fork ears, the upper end inboard of fork ear 2 is curved surface transition stair structure 3, and 2 inboards of fork ear have seted up recess 5 around 2 central lines of fork ear, and the recess 5 bottom surface is located the coplanar with the 2 upper end medial surfaces of fork ear above the 3 tops of curved surface transition stair structure.
The thickness from the bottom surface of the groove 5 to the outer side surface of the fork lug 2 along the central line direction of the fork lug 2 is 27.1 mm.
The upper part of the groove 5 divides the curved surface transition step structure 3 into two symmetrical parts.
The utility model discloses following beneficial effect has:
1. the grooves 5 are formed in the inner sides of the fork lugs 2, so that the product structure is optimized, the forming force is reduced, deep cavity forming is facilitated, the damage to equipment is reduced, and the finished product rate of forged products is improved;
2. the weight of the improved forging is reduced by 0.2Kg, and the labor intensity of workers is reduced to a certain extent;
3. the arrangement of the groove 5 reduces the storage amount of metal at the part, so that the metal can conveniently flow to the top ends of the fork lugs 2 of the end face tooth flange yoke, the forming rate and the material utilization rate of the forge piece are improved, the forming force of the forge piece is reduced, and the phenomenon that a die cracks in the forging process is reduced;
4. the size of the groove 5 is arranged according to the diameter of the U-shaped drill lug hole, the thickness of the fork lug 2 part along the central line of the fork lug 2 is reduced from 38.7mm to 27.1mm, namely the depth of the groove 5 is 11.6mm, the machining rate of the metal machining is improved, and the consumption of a cutter is reduced.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (3)
1. Novel structure of transmission shaft end face tooth flange fork forging lightweight, including flange and two fork ears, be equipped with bow-shaped splice bar between two fork ear lower parts, the inboard curved surface transition stair structure, its characterized in that of being in the upper end of fork ear: the inner side of the fork lug is provided with a groove around the central line of the fork lug, and the bottom surface of the groove and the inner side surface of the upper end part of the fork lug above the curved surface transition step structure are positioned on the same plane.
2. The novel light-weight structure of the transmission shaft end face tooth flange fork forging piece as claimed in claim 1, is characterized in that: the thickness from the bottom surface of the groove to the outer side surface of the fork lug along the central line direction of the fork lug is 27.1 mm.
3. The novel light-weight structure of the transmission shaft end face tooth flange fork forging piece as claimed in claim 1 or 2, wherein: the upper part of the groove divides the curved surface transition step structure into two symmetrical parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921235227.9U CN210686744U (en) | 2019-08-01 | 2019-08-01 | Novel light-weight structure of transmission shaft end face tooth flange fork forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921235227.9U CN210686744U (en) | 2019-08-01 | 2019-08-01 | Novel light-weight structure of transmission shaft end face tooth flange fork forging |
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| CN210686744U true CN210686744U (en) | 2020-06-05 |
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| CN201921235227.9U Active CN210686744U (en) | 2019-08-01 | 2019-08-01 | Novel light-weight structure of transmission shaft end face tooth flange fork forging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720211A (en) * | 2021-01-08 | 2021-04-30 | 富奥汽车零部件股份有限公司 | Method for forming end face key of flange yoke |
-
2019
- 2019-08-01 CN CN201921235227.9U patent/CN210686744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720211A (en) * | 2021-01-08 | 2021-04-30 | 富奥汽车零部件股份有限公司 | Method for forming end face key of flange yoke |
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