CN214557087U

CN214557087U - Automobile driving flange forging die

Info

Publication number: CN214557087U
Application number: CN202120469143.2U
Authority: CN
Inventors: 蒋波; 樊国锋
Original assignee: Changzhou Liteng Machinery Co ltd
Current assignee: Changzhou Liteng Machinery Co ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-11-02
Anticipated expiration: 2031-03-04

Abstract

The utility model belongs to the technical field of forging equipment, in particular to an automobile driving flange forging die, which comprises an upper die and a lower die; a lower ejector rod hole is formed in the middle of the lower die, a lower ejector rod is inserted into the lower ejector rod hole, and the upper end of the lower ejector rod hole is connected with a die cavity in a penetrating manner; the lower end of the upper die is provided with a boss part, and the boss part can adaptively extend into the die cavity; a step mounting hole is formed in the middle of the upper die, an upper die core and an upper die cushion block are detachably mounted in the step mounting hole from bottom to top in sequence, a step hole I is formed in the middle of the upper die core, and a step hole II is formed in the middle of the upper die cushion block; an upper ejector rod is inserted into the first stepped hole and the second stepped hole, and the upper ejector rod is sequentially composed of an ejection part, a limiting part, a sliding part and a connecting part from bottom to top. The utility model has simple structure and convenient maintenance; the mold core can be directly replaced without integral mold duplication, so that the mold cost is reduced, and the production efficiency is improved; the material can be ejected quickly and effectively, and the over-limit ejection of the upper ejector rod can be avoided.

Description

Automobile driving flange forging die

Technical Field

The utility model belongs to the technical field of forging equipment, concretely relates to car drive flange forges mould.

Background

The automobile industry in the world is developing towards light weight, high speed, safety, energy conservation, comfort and light environmental pollution, so that the amount of aluminum alloy parts used in automobiles is increasing. Flanges are one of the important parts of automobiles, and are in great demand in the automobile industry. At present, the method for manufacturing the flange at home and abroad is mainly divided into two categories: one is forging method, the other is casting, but cast products have the defects of shrinkage cavity, looseness, air holes and the like, have low mechanical strength and low yield, and are basically eliminated abroad.

The publication number CN212191079U discloses a heavy truck flange forging die, which comprises an upper die sleeve, an upper die core and a lower die, wherein a die cavity is arranged in the lower die, the upper die core is positioned in the upper die sleeve, the upper die sleeve covers the lower die, and a workpiece is arranged in the die cavity of the lower die and matched with the lower die and the upper die core; and the upper die core is provided with a boss part, and the boss part extends into the die cavity of the lower die and is matched with the upper part of the die cavity. The die is simple in structure, reasonable in design, high in machining efficiency and capable of effectively reducing production cost, and a machined product is free of transverse flash and burr.

Also, as the forging die disclosed by the publication number CN106141056A, the forging die belongs to the technical field of die design and comprises an upper die base plate, an upper die base, an upper die, a flange pressing plate, an inner hexagon screw, a lower die, a pin, a pressing plate, a bolt, a lower die base, a supporting rod, a lower die base plate, an ejector rod and a lower ejector rod, wherein the upper die base plate, the lower die base plate, the upper die base plate and the lower die base plate are inserted into holes of the upper die base plate and the lower die base plate by the pin for positioning and are fixedly connected by the bolt, the upper die is tightly pressed on the upper die base plate by the flange pressing plate through the inner hexagon screw, the supporting rod is fixed on the upper surface of the lower die base plate, a through hole is drilled in the middle of the lower die base plate, the lower ejector rod is installed in the hole, the ejector rod is arranged in a middle hole of the lower die base plate and the lower die above the lower ejector rod, the position precision between the upper die base plate and the lower die base plate is high, and the upper die base plate and the lower die base plate are both fixed reliably, the supporting rod is convenient to mount and dismount, and acting force is relatively balanced during die assembly.

In the prior art, for a hot forging die, the die is abraded every time the die is formed. When the mold is fixed, the size of the mold is wrong, and the mold needs to be repaired or replaced by a new part. The mold core is stressed firstly in the molding process, and the metal flows more violently, so that the service life of the mold core is short. The mold with the traditional structure needs integral compound mold when the core is replaced, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model aims at providing an automobile drive flange forges mould.

The utility model provides a following technical scheme:

a forging die for an automobile driving flange comprises an upper die and a lower die; a lower ejector rod hole is formed in the middle of the lower die, a lower ejector rod is inserted into the lower ejector rod hole, and the upper end of the lower ejector rod hole is connected with a die cavity in a penetrating manner; the lower end of the upper die is provided with a boss part, and the boss part can adaptively extend into the die cavity; the upper die is provided with a stepped mounting hole in the middle, an upper die core and an upper die cushion block are detachably mounted in the stepped mounting hole from bottom to top in sequence, the upper die core is provided with a first stepped hole in the middle, the first stepped hole is sequentially composed of a movable section, a lubricating oil section and a limiting section from bottom to top, the upper die cushion block is provided with a second stepped hole in the middle, and the second stepped hole is sequentially composed of a sealing section and a sliding section from bottom to top; an upper ejector rod is inserted into the first stepped hole and the second stepped hole, and the upper ejector rod is sequentially composed of an ejection part, a limiting part, a sliding part and a connecting part from bottom to top.

The limiting portion is in an inverted round table shape, the diameter of the ejection portion is equal to the diameter of the lower end of the inverted round table, the diameter of the sliding portion is equal to the diameter of the upper end of the inverted round table, and the diameter of the connecting portion is larger than the diameter of the sliding portion.

The inner diameter of the lubricating oil section is larger than that of the movable section, the shape of the limiting section is matched with that of the limiting part, and the ejection part is in clearance fit with the movable section.

The inner diameter of the sliding section is larger than that of the sealing section, and the connecting part is in clearance fit with the sliding section.

And the sealing sleeve is arranged at the sealing section.

And an overflow ring groove is arranged on the upper die at the edge of the boss part.

And the upper die cushion block is in interference fit with the stepped mounting hole.

The lower edge of the boss part and the upper edge of the die cavity are both provided with a fillet, and the radius of the fillet is 2 cm.

The lower ejector rod is in clearance fit with the lower ejector rod hole.

The utility model has the advantages that:

1. the utility model has simple structure, convenient maintenance and lower production cost;

2. the utility model can directly replace the mold core without integral mold duplication, thereby reducing the mold cost and improving the production efficiency;

3. the utility model discloses can carry out the liftout fast effectively to can avoid going up the ejector pin and push out the limit.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a front view of the upper stem of the present invention;

FIG. 3 is a cross-sectional view of the upper die cushion of the present invention;

FIG. 4 is a cross-sectional view of the upper mold core of the present invention;

FIG. 5 is an enlarged view at A in FIG. 1;

fig. 6 is an enlarged view at B in fig. 1.

Labeled as: the die comprises a lower ejector rod 101, a lower die 102, a lower ejector rod hole 103, a die cavity 104, a boss part 105, an upper die 106, a sealing sleeve 107, an overflow ring groove 108, an upper die core 201, a movable section 202, a limiting section 203, a lubricating oil section 204, an ejection part 301, a limiting part 302, a sliding part 303, a connecting part 304, an upper die cushion block 401, a sealing section 402 and a sliding section 403.

Detailed Description

As shown in the figure, the automobile driving flange forging die comprises an upper die 106 and a lower die 102. A lower ejector rod hole 103 is arranged in the middle of the lower die 102, a lower ejector rod 101 is inserted into the lower ejector rod hole 103, and the lower ejector rod 101 is in clearance fit with the lower ejector rod hole 103, so that the lower ejector rod 101 can do linear motion in the vertical direction in the lower ejector rod hole 103, and ejection is achieved. A mold cavity 104 is connected to the upper end of the lower pin hole 103, and a boss portion 105 is provided at the lower end of the upper mold 106, and the boss portion 105 is fittingly inserted into the mold cavity 104. In forging, the upper die 106 and the lower die 102 are attached to each other, and a part of the flange edge is pressed to extend upward, so that the upper die 106 located at the edge of the boss portion 105 is provided with an overflow ring groove 108, and the extended flange edge extends into the overflow ring groove 108. Suitably, the lower edge of the boss portion 105 and the upper edge of the mould cavity 104 are provided with a fillet, the radius of which is 2 cm.

Because the mold core is fragile, in order to facilitate directly changing the mold core, specifically, a stepped mounting hole is arranged in the middle of the upper mold 106, and the upper mold core 201 and the upper mold cushion block 401 are detachably mounted in the stepped mounting hole from bottom to top in sequence, wherein the upper mold cushion block 401 is in interference fit with the stepped mounting hole. The edge of the upper mold core 201 is provided with a step, so that when the upper mold core 201 is placed in the step mounting hole, the upper mold core can be positioned and mounted by means of the step, and the mounting precision is improved. When the upper mold core 201 is damaged, the upper mold cushion block 401 is dismounted, and a new upper mold core 201 is mounted without integral mold resetting, so that the mold cost is reduced, and the production efficiency is improved.

Be equipped with shoulder hole one at last mold core 201 centre, be equipped with shoulder hole two at last mould backing block 401 centre, shoulder hole one and shoulder hole two are coaxial. The first stepped hole is sequentially composed of a movable section 202, a lubricating oil section 204 and a limiting section 203 from bottom to top, and the second stepped hole is sequentially composed of a sealing section 402 and a sliding section 403 from bottom to top. An upper ejector rod is inserted into the first stepped hole and the second stepped hole, and the upper ejector rod sequentially comprises an ejector part 301, a limiting part 302, a sliding part 303 and a connecting part 304 from bottom to top. Specifically, the stopper portion 302 has an inverted circular truncated cone shape, the diameter of the ejector portion 301 is equal to the diameter of the lower end of the inverted circular truncated cone, the diameter of the sliding portion 303 is equal to the diameter of the upper end of the inverted circular truncated cone, and the diameter of the connecting portion 304 is larger than the diameter of the sliding portion 303. The inner diameter of the lubricating oil section 204 is larger than that of the movable section 202, the shape of the limiting section 203 is matched with that of the limiting part 302, and the ejection part 301 is in clearance fit with the movable section 202. The inner diameter of the sliding section 403 is larger than that of the sealing section 402, and the connecting part 304 is in clearance fit with the sliding section 403. After the upper pin is inserted, the lubricating oil is injected into the lubricating oil section 204. Because the shape of spacing section 203 and spacing portion 302 looks adaptation for when going up the ejector pin downstream to the settlement position, spacing section 203 inner wall supports the outer wall of spacing portion 302, thereby plays spacing effect, avoids going up the excessive downstream of ejector pin. In order to improve the sealing effect, a sealing sleeve 107 is installed at the sealing section 402 to prevent the lubricant from splashing out.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile driving flange forging die comprises an upper die (106) and a lower die (102); the method is characterized in that: a lower ejector rod hole (103) is formed in the middle of the lower die (102), a lower ejector rod (101) is inserted into the lower ejector rod hole (103), and the upper end of the lower ejector rod hole (103) is connected with a die cavity (104) in a penetrating manner; the lower end of the upper die (106) is provided with a boss part (105), and the boss part (105) can be adaptively extended into the die cavity (104); the upper die (106) is provided with a stepped mounting hole in the middle, an upper die core (201) and an upper die cushion block (401) are detachably mounted in the stepped mounting hole from bottom to top in sequence, the upper die core (201) is provided with a first stepped hole in the middle, the first stepped hole is sequentially composed of a movable section (202), a lubricating oil section (204) and a limiting section (203) from bottom to top, the upper die cushion block (401) is provided with a second stepped hole in the middle, and the second stepped hole is sequentially composed of a sealing section (402) and a sliding section (403) from bottom to top; an upper ejector rod is inserted into the first stepped hole and the second stepped hole, and the upper ejector rod is sequentially composed of an ejector part (301), a limiting part (302), a sliding part (303) and a connecting part (304) from bottom to top.

2. The automobile drive flange forging die of claim 1, wherein: the limiting portion (302) is in an inverted round table shape, the diameter of the ejection portion (301) is equal to the diameter of the lower end of the inverted round table, the diameter of the sliding portion (303) is equal to the diameter of the upper end of the inverted round table, and the diameter of the connecting portion (304) is larger than the diameter of the sliding portion (303).

3. The automobile drive flange forging die of claim 2, wherein: the inner diameter of the lubricating oil section (204) is larger than that of the movable section (202), the shape of the limiting section (203) is matched with that of the limiting part (302), and the ejection part (301) is in clearance fit with the movable section (202).

4. The automobile drive flange forging die of claim 2, wherein: the inner diameter of the sliding section (403) is larger than that of the sealing section (402), and the connecting part (304) is in clearance fit with the sliding section (403).

5. The automobile drive flange forging die of claim 4, wherein: and a sealing sleeve (107) is arranged at the sealing section (402).

6. The automobile drive flange forging die of claim 1, wherein: an overflow ring groove (108) is arranged on an upper die (106) at the edge of the boss part (105).

7. The automobile drive flange forging die of claim 1, wherein: and the upper die cushion block (401) is in interference fit with the stepped mounting hole.

8. The automobile drive flange forging die of claim 1, wherein: the lower edge of the boss part (105) and the upper edge of the die cavity (104) are provided with rounded corners, and the radius of the rounded corners is 2 cm.

9. The automobile drive flange forging die of claim 1, wherein: the lower ejector rod (101) is in clearance fit with the lower ejector rod hole (103).