CN218079885U

CN218079885U - Cold trimming die for double-tenon blade

Info

Publication number: CN218079885U
Application number: CN202222666932.2U
Authority: CN
Inventors: 童世权; 何涛; 李湘军
Original assignee: Wuxi Hyatech Technology Co ltd
Current assignee: Wuxi Hyatech Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2022-12-20
Anticipated expiration: 2032-10-11

Abstract

The utility model provides a cold cut edge mould for two tenon blades, its remaining overlap is little, and the cut surface is smooth, has improved work efficiency. It includes mould and lower mould, it installs the side cut drift at the cope match-plate pattern lower extreme to go up the mould, the lower mould install on the lower mould board with side cut drift matched with side cut die follows the side cut die with the periphery of the corresponding blade profile of side cut drift is equipped with bridge portion, bridge portion is the profile modeling that suits with the work piece overlap, bridge portion does outward the storehouse portion of die, the storehouse portion is less than bridge portion and work piece overlap and keeps away the sky, the lower part of blade profile is equipped with the blanking die cavity.

Description

Cold trimming die for double-tenon blade

Technical Field

The utility model relates to an aviation die forging mould technical field for the blade specifically is a cold cut edge mould for two tenon blades.

Background

As shown in fig. 1, a double-tenon blade is generally forged by a die forging process, but by adopting this method, not only the flash is large, but also the cut surface is rough, which is not beneficial to the subsequent process, so in the actual production, the laser cutting is generally used to remove the excess flash, which results in the complex overall processing process, high cost and low working efficiency.

SUMMERY OF THE UTILITY MODEL

When adding man-hour to current two tenon blades, its overlap is great, and the tangent plane is coarse, the problem that work efficiency is low, the utility model provides a cold cut edge mould for two tenon blades, its remaining overlap is little, and the cut surface is smooth, has improved work efficiency.

The technical scheme is as follows: the utility model provides a cold trimming die for two tenon blades, its includes mould and lower mould, its characterized in that: the utility model discloses a cutting die, including last mould, lower mould, edge trimming die, bridge, work piece overlap, go up the mould and install the side cut drift at the cope match-plate pattern lower extreme, the lower mould install on the lower bolster with side cut drift matched with side cut die follows the side cut die with the periphery of the corresponding blade profile of side cut drift is equipped with bridge, bridge is the profile modeling that suits with the work piece overlap, bridge is outer to be the storehouse portion of die, the storehouse portion is less than bridge and work piece overlap and keeps away the sky, the lower part of blade profile is equipped with the blanking die cavity.

It is further characterized in that: the top of the trimming punch is connected with the upper die plate in a clamping manner through a T-shaped key and then fixed through a screw;

the trimming punch and the trimming female die are both made of Cr12MoV materials;

the clearance between the upper molded surface of the trimming punch in the punching direction and the workpiece is 0.05-0.1mm, and the clearance between the side surface of the trimming punch in the punching direction and the workpiece is 0.4-0.6mm;

and a pair of opposite unloading claws are further arranged on two sides of the trimming female die, the unloading claws are approximately Z-shaped, and the opposite distance between the two unloading claws is slightly larger than the width of the trimming punch.

After the structure is adopted, the workpiece is arranged on the trimming female die, the profiling bridge part which is matched with the workpiece and is arranged on the trimming female die is positioned according to the cutting edge profile, and the size of the cutting edge profile is larger than the theoretical appearance of the workpiece, so that the flash part of the workpiece needing to be cut is hung on the cutting edge of the female die, the flash can be effectively cut off when the trimming punch is used for cutting, the smoothness of the cut surface can be ensured, and the cutting efficiency is improved.

Drawings

FIG. 1 is a top view of a dual dovetail blade;

FIG. 2 is a side view of a dual dovetail blade;

FIG. 3 is a front view of a dual dovetail blade;

FIG. 4 is a schematic view of the overall structure of the present invention;

fig. 5 is a front view of the trimming punch of the present invention;

fig. 6 is a side view of the trimming punch of the present invention;

fig. 7 is an axonometric view of the trimming female die of the utility model;

FIG. 8 is a front view of the trimming die of the present invention;

fig. 9 is a top view of the trimming female die of the present invention;

FIG. 10 is a sectional view of the edge trimming punch of the present invention in partial configuration in cooperation with a double tenon blade;

figure 11 is the utility model discloses two tenon blades and side cut die matched with cross-sectional view.

Detailed Description

As shown in fig. 4 to 11, a cold trimming die for a double-tenon blade comprises an upper die plate 1 and a lower die plate 6, wherein a trimming punch 2 is installed at the lower end of the upper die plate 1, a T-shaped key is arranged at the top of the trimming punch 2, the T-shaped key is connected with the upper die plate 1 in a clamping manner and fixed by screws, the trimming punch 2 is convenient to disassemble and assemble and convenient to replace, a trimming die 5 matched with the trimming punch 2 is installed on the lower die plate 6 through a trimming die frame, a cutting edge contour 53 matched with the trimming punch 2 for punching is arranged on the trimming die 5, a bridge part 51 is arranged along the periphery of the cutting edge contour 53, the bridge part 51 is a profile matched with a workpiece flash, and the bin part is lower than the bridge part 51, so that the bin part is separated from the workpiece flash, the flash part of the workpiece 4 to be cut can be hung and lapped on the cutting edge of the die, and the flash can be effectively cut by the trimming punch 2, and the section is smooth. The bridge surface 51 is also provided with a blanking cavity 52.

Further, the trimming punch 2 and the trimming die 5 are both made of Cr12MoV (i.e. cold work die steel) materials.

Furthermore, the clearance (2) between the upper molded surface of the trimming punch 2 in the punching direction and the workpiece 4 is 0.05-0.1mm, and the clearance (1) between the side surface of the trimming punch 2 in the punching direction and the workpiece 4 is 0.4-0.6mm.

Furthermore, a pair of opposite discharging claws 3 is arranged on two sides of the trimming female die 5, the discharging claws 3 are approximately Z-shaped, the discharging claws 3 are fixedly arranged on the lower die plate 6 through waist-shaped holes and screws on the discharging claws, and the opposite distance between the two discharging claws 3 is slightly larger than the width of the trimming punch 2.

The working principle of the utility model is as follows:

the method comprises the following steps of placing a workpiece 4 with flash on a trimming female die 5, completing positioning through a profiling bridge face part and a cutting edge contour, enabling a trimming punch 2 to move downwards under the driving of an external power mechanism (which can be an oil cylinder or a crank link mechanism), enabling the trimming punch 2 to contact the workpiece 4 to continue to move downwards until the flash is cut, enabling the workpiece to fall into a blanking cavity, enabling the trimming punch 2 to return after a lower dead point, enabling trimming residual materials to return on the trimming punch 2 together until the trimming residual materials contact a discharging claw 3, enabling the trimming residual materials to continue to move upwards to be discharged from the trimming punch 2 and fall onto a bridge part 51 of the trimming female die 5, enabling the trimming punch 2 to continue to move upwards to return to an upper dead point, taking out the trimmed workpiece 4 and the trimmed residual materials, finishing one trimming process, and placing another workpiece 4 to repeat the processes.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a cold trimming die for two tenon blades, its includes mould and lower mould, its characterized in that: the utility model discloses a cutting die, including last mould, lower mould, edge trimming die, bridge, work piece overlap, go up the mould and install the side cut drift at the cope match-plate pattern lower extreme, the lower mould install on the lower bolster with side cut drift matched with side cut die follows the side cut die with the periphery of the corresponding blade profile of side cut drift is equipped with bridge, bridge is the profile modeling that suits with the work piece overlap, bridge is outer to be the storehouse portion of die, the storehouse portion is less than bridge and work piece overlap and keeps away the sky, the lower part of blade profile is equipped with the blanking die cavity.

2. A cold trimming die for double tenon blades according to claim 1 wherein: the top of the trimming punch is connected with the upper die plate in a clamping mode through a T-shaped key and then fixed through a screw.

3. A cold trimming die for double tenon blades according to claim 1 wherein: the trimming punch and the trimming die are made of Cr12MoV materials.

4. The cold-trimming die for double-tenon blades according to claim 1, wherein: the clearance between the upper molded surface of the trimming punch in the punching direction and the workpiece is 0.05-0.1mm, and the clearance between the side surface of the trimming punch in the punching direction and the workpiece is 0.4-0.6mm.

5. A cold trimming die for double tenon blades according to claim 1 wherein: and a pair of opposite unloading claws are further arranged on two sides of the trimming female die, the unloading claws are approximately Z-shaped, and the opposite distance between the two unloading claws is slightly larger than the width of the trimming punch.