CN212792839U

CN212792839U - Forging tool for thin-wall annular forging

Info

Publication number: CN212792839U
Application number: CN202020870454.5U
Authority: CN
Inventors: 章浩辉; 竺田海; 章永富
Original assignee: Xinchang County Daxiong Forging Co ltd
Current assignee: Xinchang County Daxiong Forging Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-03-26
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a forging frock of thin wall annular forging, including the die sleeve, the die sleeve includes spacing ring and the bottom plate through the bolt fastening, from up having placed lower mould and last mould in proper order down on the bottom plate, lower mould and last mould all are located the spacing intra-annular, be equipped with the die cavity in the lower mould, the central point of lower mould and last mould puts and is equipped with down the mold core and goes up the mold core respectively, the position cover has been cup jointed in the upper portion activity of die sleeve, the center department of going up the mold core is equipped with the stripping ejector pin that is used for carrying out the drawing of patterns to the forging, be equipped with in the bottom plate and be used for following the drawing of patterns ejector. The utility model discloses forged forging piece coaxiality is good, easy demoulding.

Description

Forging tool for thin-wall annular forging

Technical Field

The utility model belongs to the technical field of the forging frock technique and specifically relates to a forging frock of thin wall annular forging is related to.

Background

The thin-wall annular forging piece is widely applied to modern mechanical equipment, and when the thin-wall annular forging piece is used under different working conditions, the thin-wall annular forging piece requires high comprehensive mechanical property and is used for ensuring the reliable bearing capacity of the thin-wall annular forging piece, so that a blank is required to be forged. The defects of cast-state looseness and the like generated in the smelting process of gear raw materials can be eliminated by forging, and the microstructure is optimized. Meanwhile, the direction of the metal fiber after being forged according to the requirement is improved, so that the stress capacity is improved. The mechanical properties after forging are superior to those of the unforged blank. The die forging can save material consumption, is suitable for batch production, and greatly improves the material utilization rate.

Forging behind mould and the lower mould compound die of forging frock commonly used at present, because grinding apparatus size deviation when the compound die, probably lead to the forging piece coaxial nature relatively poor to lack central positioner when forging frock punches a hole and dashes even skin, lead to hole and external diameter to be eccentric easily, the hole produces unnecessary even skin easily, defects such as strain, can only take to reduce the aperture and compensate eccentric error, leads to the machining allowance many and processing difficulty, has increased the processing cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a forging frock of thin wall annular forging.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a forging frock of thin wall annular forging, includes the die sleeve, the die sleeve includes spacing ring and bottom plate through the bolt fastening, from up having placed the lower mould and having gone up the mould in proper order down on the bottom plate, lower mould and last mould all are located spacing intra-annular, be equipped with the die cavity in the lower mould, the central point of lower mould and last mould puts and is equipped with down the mold core respectively and goes up the mold core, the location cover has been cup jointed in the upper portion activity of die sleeve, the center department of going up the mold core is equipped with the ejector pin that takes off that is used for carrying out the drawing of patterns to the forging, be equipped with in the bottom plate and.

An upper base plate is arranged between the positioning cover and the upper die.

And a lower base plate is arranged between the lower die and the bottom plate.

And a groove ring is arranged on the side wall of the limiting ring.

The utility model has the advantages that: the upper die and the lower die are placed in the limiting ring, so that the axes of the upper die and the lower die are collinear with the axis of the limiting ring, and poor coaxiality caused by deviation during die assembly is avoided; the upper die core and the lower die core are respectively arranged in the upper die and the lower die and coaxial with the upper die and the lower die, so that small errors cannot be generated in the forging process of the holes and the outer diameters, and the positioning cover, the stripping ejector rod and the stripping ejector rod are convenient for the forging to be stripped.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the turnover demoulding device of the utility model;

FIG. 3 is a side view of the turnover demoulding device of the utility model;

FIG. 4 is a diagram showing the relationship between the supporting frame, the rotating shaft and the rotary power mechanism of the turnover demoulding device;

in the figure: the die sleeve comprises a die sleeve 1, a limiting ring 101, a groove ring 102, a bottom plate 103, an upper die 2, a positioning cover 3, an upper padding plate 4, a stripping ejector rod 5, an upper die core 6, a cavity 7, a lower die 8, a lower padding plate 9, a lower die core 10, a stripping ejector rod 11, a clamping block 12, a connecting seat 13, a telescopic rod 14, a spring 15, a rotating shaft 16, a supporting frame 17, a circular groove 171, a cam 18, a first cylinder 19, a third cylinder 20, a connecting block 21, a connecting rod 22, a second cylinder 23, a base 24, a sliding rail 25, a bearing 26 and a hinge block 27.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in figure 1, the forging tool for the thin-wall annular forging comprises a die sleeve 1, wherein the die sleeve 1 comprises a limiting ring 101 and a bottom plate 103 which are fixed through bolts, a lower backing plate 9 and a lower die 8 are sequentially placed on the bottom plate 103 from bottom to top, the limiting ring 101 is sleeved on the peripheries of the lower backing plate 9 and the lower die 8 and then the limiting ring 101 and the bottom plate 103 are fixed through the bolts, a cavity 7 is arranged in the lower die 8, a forging blank is placed in the cavity 7 and then an upper die 2 is placed in the cavity 2 for die assembly, the upper die 2 and the lower die 8 are both positioned in the limiting ring 101, so that the coaxiality is good during die assembly, the situation that the axis deviation occurs is avoided, a lower die core 10 and an upper die core 6 are respectively arranged at the central positions of the lower die 8 and the upper die 2 and the lower die 8, a certain gap is reserved at the junction of the upper die 2 and the lower die 8 for accommodating redundant forging materials, and the forging blank is, the upper portion activity of die sleeve 1 has cup jointed position cover 3, be equipped with upper padding plate 4 between position cover 3 and the last mould 2, the center department of going up the mould core 6 is equipped with takes off material ejector pin 5, position cover 3, the guiding hole that is used for taking off material ejector pin 5 and leads has been seted up in upper padding plate 4 and the last mould core 6, be equipped with the drawing of patterns ejector pin 11 that is used for pushing out lower mould 8 from spacing ring 101 in the bottom plate 103, be equipped with the recess ring 102 that is used for the upset shedder to press from both sides tightly on the lateral wall of spacing ring 101, forging and pressing shaping under the forging and pressing effect of forging press when the forging blank, upset shedder overturns die sleeve 1, drawing of patterns ejector pin 11 supports down backing plate 9, will go up mould 2 and lower mould 8 and break away from in the spacing ring 101, rethread takes off.

As shown in fig. 2-4, the turning and demolding device for thin-walled annular forging comprises first cylinders 19 fixed on the left and right sides of a forging press workbench (not shown), a base 24 is fixed on a push rod of each first cylinder 19, two second cylinders 23 are fixed above the base 24, a support frame 17 is fixed on a push rod of each second cylinder 23, the support frame 17 comprises a horizontal section and a vertical section, the push rod of each second cylinder 23 is fixedly connected with the horizontal section of the support frame 17, slide rails 25 are arranged in the left and right directions between the base 24 and the forging press workbench, the base 24 reciprocates along the slide rails 25, a rotating shaft 16 passes through the vertical section of the support frame 17, a bearing 26 is arranged between the rotating shaft 16 and the support frame 17, a connecting seat 13 is fixedly connected to one side of the rotating shaft 16, the cross section of the connecting seat 13 is of a U-shaped structure, the opening direction of the connecting seat 13 is the side far away from the rotating shaft 16, a clamping, the clamping block 12 is connected with the connecting seat 13 through an expansion link 14, the expansion link 14 is arranged in the left-right direction, a spring 15 is sleeved on the periphery of the expansion link 14, the clamping part of the clamping block 12 is in an arc structure matched with the groove ring 102, when the spring 15 is not compressed, the arc structure is positioned outside the connecting seat 13, a rotary power mechanism for driving the rotary shaft 16 to rotate is arranged on the other side of the rotary shaft 16, the rotary power mechanism comprises a third air cylinder 20 fixed on the vertical section of a supporting frame 17, the third air cylinder 20 is horizontally arranged in the front-back direction, a connecting block 21 is fixed on a push rod of the third air cylinder 20, one end of the connecting block 21, which is far away from the third air cylinder 20, is hinged with connecting rods 22, the number of the connecting rods 22 is two, a cam 18 is hinged between the two connecting rods 22, a hinged part of the cam 18 and the connecting rod 22 is provided with, the installation hole of the cam 18 penetrates through the rotating shaft 16 and then the cam 18 is welded with the rotating shaft 16, a circular groove 171 which takes the axis of the rotating shaft 16 as the center of a circle and the distance between the hinge block 27 and the rotating shaft 16 as the radius is arranged on the vertical section of the supporting frame 17, and the circular groove 171 guides the hinge block 27 clamped in the circular groove 171;

after forging and pressing are finished, the first air cylinders 19 on the two sides push the base 24 to move towards the direction of the die sleeve 1, the clamping block 12 is clamped into the groove ring 102 to clamp the die sleeve 1, the spring 15 is compressed, the telescopic rod 14 is contracted, the clamping block 12 can clamp the die sleeve 1 more firmly, the second air cylinder 23 is started to push the supporting frame 17 to move upwards, the die sleeve 1 is separated from a forging press workbench (not shown), the third air cylinder 20 pushes the connecting block 21 and the connecting rod 22 to enable the rotating shaft 16 to rotate, after the rotating shaft 16 rotates 180 degrees, the third air cylinder 20 stops moving, the push rod of the second air cylinder 23 retracts, the die sleeve 1 is placed on the forging press workbench (not shown), the first air cylinder 19 drives the clamping block 12 to reset, overturning of the die sleeve 1 is completed, and finally, the forging in the die sleeve 1 is demolded.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a forging frock of thin wall annular forging, includes die sleeve (1), its characterized in that: die sleeve (1) includes spacing ring (101) and bottom plate (103) through the bolt fastening, from up having placed lower mould (8) and last mould (2) in proper order down on bottom plate (103), lower mould (8) all are located spacing ring (101) with last mould (2), be equipped with die cavity (7) in lower mould (8), the central point of lower mould (8) and last mould (2) puts and is equipped with down mold core (10) and last mold core (6) respectively, the upper portion activity of die sleeve (1) has cup jointed position guard (3), the center department of going up mold core (6) is equipped with takes off material ejector pin (5) that is used for carrying out the drawing of patterns to the forging, be equipped with in bottom plate (103) and be used for carrying out drawing of patterns ejector pin (11) that release lower mould (8) from spacing ring (101).

2. The forging tool for the thin-wall annular forging piece as claimed in claim 1, wherein the forging tool comprises: an upper backing plate (4) is arranged between the positioning cover (3) and the upper die (2).

3. The forging tool for the thin-wall annular forging piece as claimed in claim 1, wherein the forging tool comprises: and a lower backing plate (9) is arranged between the lower die (8) and the bottom plate (103).

4. The forging tool for the thin-wall annular forging piece as claimed in claim 1, wherein the forging tool comprises: and a groove ring (102) is arranged on the side wall of the limiting ring (101).