CN211276197U

CN211276197U - Mould for extruding heavy truck clutch cover mounting plane

Info

Publication number: CN211276197U
Application number: CN201922233075.5U
Authority: CN
Inventors: 李晓锋; 陈兴其; 崔颜丽; 盛银高
Original assignee: Jingjiang Sanpeng Mould Technology Co ltd
Current assignee: Jingjiang Sanpeng Mould Technology Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-08-18
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a mould for extruding a heavy truck clutch cover mounting plane, which comprises an upper template, a lower template, an upper fixing plate, an upper mould outer ring, a first female mould insert, a second female mould insert fixedly arranged in the upper mould outer ring and connected below the first female mould insert, an upper mould core arranged in the first female mould insert, an upper mould spring arranged between the upper template and the upper mould core, a lower backing plate fixedly arranged above the lower template, a lower mould backing plate, a lower discharging plate, a lower mould fixedly arranged above the lower mould backing plate, and a guide mechanism arranged between the upper template and the lower template, wherein a forming cavity of a product is formed between the upper mould core, the first female mould insert and the second female mould insert, the lower mould is matched with the forming cavity, the top of the lower mould is provided with a plurality of convex hulls, the included angle between the upper surface of the convex hull and the side surface of the convex hull is 85-90 degrees, and an arc transition angle is arranged between, the forming cavity is provided with an avoiding cavity corresponding to the convex hull.

Description

Mould for extruding heavy truck clutch cover mounting plane

Technical Field

The utility model relates to an extrusion heavily blocks clutch case mounting plane's mould.

Background

The clutch is an important component of the automobile transmission system, plays roles of separating and combining the output of a power system and relieving load impact, and rotates synchronously with an engine flywheel at high speed, so that the clutch cover has enough strength, rigidity and precision.

At present, the engine power of a heavy truck exceeds 660 horsepower, the torque of a 430 clutch exceeds 4000N.m, and the engine flywheel is matched to rotate at a high speed, so that the requirements on structural rigidity and strength are very high, the requirements on dimensional accuracy are also very high, and the requirements on the flatness and the position degree of a working part and an assembling part are very high. The method generally adopts a thick plate with the thickness of about 6mm, and realizes large-batch production by flanging, shaping and punching through a punching die.

The clutch for the heavy truck generally adopts a thick plate material with the thickness of more than 6mm, the materials are DD13 and SPHE, the tensile strength is more than or equal to 270Mpa, a plurality of steps need to be pressed during forming, the molded surface is complex and the edge is turned, so a 1600T oil press with higher pressure is selected.

In the prior art, a convex hull of a convex die of the die for extruding the mounting plane of the heavy truck clutch cover is an inclined plane as shown in fig. 1, and after the plane is shaped and pressed, the material fluidity at a right angle is poor, and the volume of the reserved convex hull material is small. The back of the product is easy to have hidden damage caused by material shortage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide an extrusion heavily blocks clutch case mounting surface's mould, reserve out the material that the position need flatten, then the integer flattens, and the bolt mounted position planar region scope is big and stable.

In order to achieve the above object, the technical scheme of the utility model is to provide a mould of extrusion heavily block clutch case mounting surface, including cope match-plate pattern and lower bolster, fixed set up in the cope match-plate pattern below an upper fixed plate, fixed set up in last mold inner lane of cope match-plate pattern below, fixed set up in go up in the mold inner lane and connect in the second die mold insert of first die mold insert below, set up in last mold core in the first die mold insert, set up in the cope match-plate pattern with go up mould spring between the mold core, fixed set up in the lower bolster of lower bolster top, set up in lower bolster top and cover locate lower stripper outside the lower bolster, fixed set up in the lower mould of lower bolster top, Set up in the cope match-plate pattern with guiding mechanism between the lower bolster, go up the mold core first die mold insert and form the shaping chamber of product between the second die mold insert, the lower mould with the shaping chamber cooperatees its characterized in that: the top of the lower die is provided with a plurality of convex hulls, the included angle between the upper surfaces of the convex hulls and the side surfaces of the convex hulls is 85-90 degrees, arc transition angles are formed between the upper surfaces of the convex hulls and the side surfaces of the convex hulls, and the forming cavity is provided with an avoiding cavity corresponding to the convex hulls.

The further improvement is that: the guide mechanism is a guide column assembly.

The further improvement is that: and a positioning column is arranged in the middle of the surface of the lower die.

The utility model has the advantages and the beneficial effects that: the top end shape of the convex hull of the forming convex die is changed to be close to 90 degrees, an R angle as large as possible is inverted at the intersection position, the material flowing during forming is facilitated, the connection position of the forming convex die and the transmission surface is in transitional connection according to the shape of a product, the corresponding position of the forming concave die is empty, the material is naturally formed, the material at the position needing to be flattened is reserved, then the material is flattened by shaping, and the plane area range of the installation position of the bolt is large and stable. The effective flat area of the bolt hole is ensured, the risk that the gland is cracked and the outer diameter is expanded is avoided, and the economic efficiency is high.

Drawings

FIG. 1 is a schematic view of a convex hull of a prior art male mold;

FIG. 2 is a schematic view of a convex hull of the convex die of the present invention;

FIG. 3 is a schematic view of the present invention;

FIG. 4 is a schematic view of a product;

fig. 5 is a cross-sectional view taken at a-a of fig. 4.

Wherein: 1. mounting a template; 2. an upper fixing plate; 3. an upper die outer ring; 4. a first female die insert; 5. a second female die insert; 6. an upper mold core; 7. a lower template; 8. a lower die base plate; 9. discharging a material plate; 10. a lower die; 11. a guide mechanism; 12. a positioning column; 13. a convex hull; 14. an avoidance cavity; 15. an upper die spring; 16. and a lower cushion plate.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 4-5, the schematic diagrams of the clutch cover of the heavy truck are shown, and the following forming die is designed to ensure that the area of the screw mounting hole in fig. 5 is large and stable, ensure the effective flat area of the bolt hole, and avoid the gland from cracking.

As shown in fig. 2 and 3, a die for extruding a mounting plane of a heavy truck clutch cover comprises an upper die plate 1, a lower die plate 7, an upper fixing plate 2 fixedly arranged below the upper die plate 1, an upper die outer ring 3 fixedly arranged below the upper fixing plate 2, a first die insert 4 fixedly arranged in the upper die outer ring 3, a second die insert 5 fixedly arranged in the upper die outer ring 3 and connected below the first die insert 4, an upper die core 6 arranged in the first die insert 4, an upper die spring 15 arranged between the upper die plate 1 and the upper die core 6, a lower backing plate 16 fixedly arranged above the lower die plate 7, a lower backing plate 8 fixedly arranged above the lower backing plate 16, a lower stripper plate 9 arranged above the lower backing plate 16 and sleeved outside the lower backing plate 8, a lower die 10 fixedly arranged above the lower backing plate 8, and a lower die insert 4 fixedly arranged below the upper die outer ring 3, The guide mechanism 11 is arranged between the upper template 1 and the lower template 7, a molding cavity of a product is formed among the upper mold core 6, the first female mold insert 4 and the second female mold insert 5, the lower mold is matched with the molding cavity, the top of the lower mold 10 is provided with a plurality of convex hulls 13, an included angle between the upper surfaces of the convex hulls 13 and the side surfaces of the convex hulls 13 is 85-90 degrees, an arc transition angle is formed between the upper surfaces of the convex hulls 13 and the side surfaces of the convex hulls 13, and an avoidance cavity 14 is arranged at the molding cavity corresponding to the convex hulls 13.

The upper die spring 15 used in the present embodiment may be a nitrogen gas spring.

In the preferred embodiment of the present invention, the guide mechanism 11 is a guide column assembly. In order to position the product conveniently, in the present embodiment, a positioning column 12 is disposed at a middle position of the surface of the lower mold.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A die for extruding a mounting plane of a clutch cover of a heavy truck comprises an upper die plate, a lower die plate, an upper fixing plate fixedly arranged below the upper die plate, an upper die outer ring fixedly arranged below the upper fixing plate, a first female die insert fixedly arranged in the upper die outer ring, a second female die insert fixedly arranged in the upper die outer ring and connected below the first female die insert, an upper die core arranged in the first female die insert, an upper die spring arranged between the upper die plate and the upper die core, a lower backing plate fixedly arranged above the lower die plate, a lower die backing plate fixedly arranged above the lower backing plate, a lower discharging plate arranged above the lower backing plate and sleeved outside the lower die backing plate, a lower die fixedly arranged above the lower die backing plate and a guide mechanism arranged between the upper die plate and the lower die plate, go up the mold core the first die mold insert and form the one-tenth die cavity of product between the second die mold insert, the lower mould with it cooperatees its characterized in that to become the die cavity: the top of the lower die is provided with a plurality of convex hulls, the included angle between the upper surfaces of the convex hulls and the side surfaces of the convex hulls is 85-90 degrees, arc transition angles are formed between the upper surfaces of the convex hulls and the side surfaces of the convex hulls, and the forming cavity is provided with an avoiding cavity corresponding to the convex hulls.

2. The die for pressing a mounting plane of a clutch cover for a heavy truck according to claim 1, wherein: the guide mechanism is a guide column assembly.

3. The die for pressing a mounting plane of a clutch cover for a heavy truck according to claim 1, wherein: and a positioning column is arranged in the middle of the surface of the lower die.