CN-224209050-U - Precise forging die device for cross lock catch of flange shaft part

Abstract

The utility model discloses a cross lock catch precision forging die device for a flange shaft part, which comprises an upper die tool and a lower die tool, wherein the upper die tool is matched with the lower die tool, the upper die tool comprises a disc-shaped upper die base, annular lock catch bosses are arranged on the surface of the upper die base, a flange shaft upper cavity is arranged on the surface of the upper die base, four boss lock catches are arranged on the periphery of the lock catch bosses, the lower die tool comprises a disc-shaped lower die base, annular lock catch grooves are arranged on the surface of the lower die base, flange shaft lower cavities are arranged on the surface of the lower die base, and four groove lock catches are arranged on the periphery of the lock catch grooves. According to the flange shaft part cross lock catch precision forging die device, through increasing the lock catch depth and width and controlling the circumferential draft angle of the lock catch to adjust the upper and lower gaps and the allowance corresponding to the blank of the upper and lower cavities after the upper and lower cavities of the flange shaft are matched, the error modulus of the upper and lower dies is reduced, and the process problem of larger edge cutting allowance of the flange shaft part is solved.

Inventors

• TU HAITAO
• JIN ZHENGHAO
• Shen Xiangye
• Chu Pengwei

Assignees

• 江苏罡阳股份有限公司

Dates

Publication Date

20260508

Application Date

20250530

Claims (5)

1. 1. The flange shaft part cross lock catch precision forging die device is characterized by comprising an upper die tool (1) and a lower die tool (2), wherein the upper die tool (1) is matched with the lower die tool (2), The upper die tooling (1) comprises a disc-shaped upper die base (1-1), an annular locking lug boss (1-2) is arranged on the surface of the upper die base (1-1), a flange shaft upper die cavity (1-3) is arranged on the surface of the upper die base (1-1), four boss locking catches (1-2 a) are arranged on the periphery of the locking lug boss (1-2), The lower die tooling (2) comprises a disc-shaped lower die base (2-1), an annular locking groove (2-2) is formed in the surface of the lower die base (2-1), a flange shaft lower cavity (2-3) is formed in the surface of the lower die base (2-1), four groove locking catches (2-2 b) are arranged in the circumferential direction of the locking groove (2-2), Wherein, the groove lock catch (2-2 b) is matched with the boss lock catch (1-2 a).
2. 2. The flange shaft part cross lock catch precision forging die device as recited in claim 1, wherein the groove lock catch (2-2 b) is in clearance fit with the boss lock catch (1-2 a), and the clearance is smaller than or equal to 0.3mm.
3. 3. The flange shaft part cross lock catch precision forging die device as recited in claim 2, wherein a fit clearance between the groove lock catch (2-2 b) and the boss lock catch (1-2 a) in the circumferential direction is less than or equal to 0.4mm.
4. 4. The flange shaft part cross lock catch precision forging die device according to claim 1 is characterized in that a die clamping gap between the flange shaft upper die cavity (1-3) and the flange shaft lower die cavity (2-3) is 1.8 mm-2.4 mm.
5. 5. The flange shaft part cross-shaped lock catch precision forging die device as recited in claim 1, wherein the draft angle of the circumferential wall of each of the lock catch boss (1-2) and the lock catch groove (2-2) is smaller than 1 °.

Description

Precise forging die device for cross lock catch of flange shaft part Technical Field The utility model relates to forging equipment, in particular to a cross lock catch precision forging die device for flange shaft parts. Background The conventional flange and flange shaft forgings are gradually finished according to the procedures of heating, pre-forging, finish forging, punching and trimming when being forged, wherein the finish forging procedure directly influences the precision and the surface quality of the forgings, the conventional finish forging die often has the forging problems that the flash allowance is large and difficult to remove after die assembly, the machining positioning standard is influenced by die staggering and the like, and the conventional finish forging die needs to be improved according to the situation. Disclosure of utility model In view of the foregoing, it is desirable to provide a cross lock precision forging die device for flange shaft parts. In order to solve the technical problems, the utility model adopts the following technical scheme: A flange shaft part cross lock catch precision forging die device is characterized in that the flange shaft part cross lock catch precision forging die device comprises an upper die tool and a lower die tool, the upper die tool is matched with the lower die tool, The upper die tooling comprises a disc-shaped upper die base, an annular locking lug boss is arranged on the surface of the upper die base, a flange shaft upper cavity is arranged on the surface of the upper die base, four lug boss locking catches are arranged on the periphery of the locking lug boss, The lower die tooling comprises a disc-shaped lower die base, the surface of the lower die base is provided with an annular locking groove, the surface of the lower die base is provided with a flange shaft lower cavity, four groove locks are arranged on the circumference of the locking groove, Wherein, the groove lock catch is matched with the boss lock catch. As a preferred embodiment of the utility model, the groove lock catch and the boss lock catch are in clearance fit, and the clearance is smaller than or equal to 0.3mm. As a preferred embodiment of the utility model, the fit clearance between the groove lock catch and the boss lock catch in the circumferential direction is less than or equal to 0.4mm. As a preferred embodiment of the utility model, the die closing gap between the upper die cavity of the flange shaft and the lower die cavity of the flange shaft is 1.8-2.4 mm. As a preferred embodiment of the utility model, the draft angle of the circumferential walls of the locking lug boss and the locking groove is smaller than 1 degree. Compared with the prior art, the utility model has the following beneficial effects: The utility model provides a cross lock catch precision forging die device for flange shaft parts, which is designed into a cross lock catch structure by increasing lock catch depth and width and controlling upper and lower gaps and corresponding allowance of upper and lower cavities corresponding to blanks after locking upper and lower cavities of a circumferential pattern drawing inclination adjustment flange shaft where lock catches are positioned, wherein the shrinkage ratio of a forged flange shaft forging meets 1.014:1, the error modulus of the upper and lower dies is reduced, the process problem of larger trimming allowance of the flange shaft parts is solved, the precision and surface quality of the flange shaft forging are improved, the processing standard is more accurate, and the quality of the flange shaft part machining process is improved. Drawings In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic diagram of a three-dimensional structure of an upper die tooling of a cross lock catch precision forging die device for flange shaft parts; FIG. 2 is a schematic perspective view of a lower die tooling of the cross lock precision forging die device for flange shaft parts of FIG. 1; FIG. 3 is a schematic perspective view of a cross lock precision forging die device for flange shaft parts according to the present utility model; FIG. 4 is a schematic view of a cross-lock precision forging die apparatus for flange shaft parts according to the present utility model, with a preform placed in the die apparatus; FIG. 5 is a schematic diagram of the use of the cross lock precision forging die apparatus for flange shaft parts of the present utility model, in which precision forging is obtained; The mark in the figure is illustrated as 1, an upper die tooling, 1-1, an upper die base,