Universal forging die for combined forging press

Abstract

The utility model provides a general forging die for a combined forging press. The general forging die comprises a lower die holder, a lower forging die, an upper die frame, an upper forging die and a guide structure, the lower die base is provided with a concave cavity for accommodating the lower casting die, the lower casting die is arranged in the concave cavity, the upper die frame is provided with a concave cavity for accommodating the upper casting die, the upper casting die is arranged in the concave cavity, and the lower casting die and the upper casting die are oppositely arranged; the guide structure comprises a guide rod and an elastic device arranged on the guide rod in a sleeving mode, a pressing block is arranged at the top of the guide rod, and the radius of the pressing block is not smaller than that of the elastic device. According to the universal forging die for the combined forging press, forgings can be prevented from being damaged through the chamfers arranged on the front faces and the rear faces of the upper forging die and the lower forging die, the end distance between the upper forging die and the lower forging die is adjusted and controlled through the compressed spring in the guide structure, and therefore the universal forging die for the combined forging press can adapt to the forging process of the forgings within a certain diameter range; and the method has certain universality.

Description

Technical Field

[0001] The utility model relates to the technical field of upsetting dies, in particular to a combined forging press universal forging die. Background Art

[0002] Compared with hot-rolled steel, the forged steel has better comprehensive mechanical properties; when forging cylindrical bar stock, generally, upper and lower dies are used for forging, and the same set of dies is applicable to the forging of cylindrical bar stock with multiple diameters. The die generally adopts an upsetting die. The arc surface of the traditional upsetting die cavity is an involute, so as to match cylindrical bar stock with multiple diameters; however, the processing of the involute is time-consuming and laborious, and after processing, the arc connection on the cylindrical bar stock needs to be polished manually, resulting in difficult guarantee of process dimensions, and the applicable processing diameter range is quite limited, and it is difficult to meet the processing requirements of cylindrical bar stock in a large diameter range. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defects existing in the prior art. The utility model provides a combined forging press universal forging die to adapt to the forging process of blanks with multiple sizes.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a combined forging press universal forging die, which includes a lower die base, a lower upsetting die, an upper die holder, an upper upsetting die and a guiding structure;

[0005] A concave cavity for accommodating the lower upsetting die is arranged on the lower die base, the concave cavity penetrates through the front and rear surfaces of the lower die base, the lower upsetting die is arranged in the concave cavity, and a triangular groove penetrating through the front and rear surfaces of the lower upsetting die is arranged on the lower upsetting die;

[0006] A concave cavity for accommodating the upper upsetting die is arranged on the upper die holder, the concave cavity on the upper die holder penetrates through the front and rear surfaces of the upper die holder, the upper upsetting die is arranged in the concave cavity, and a triangular groove penetrating through the front and rear surfaces of the upper upsetting die is arranged on the upper upsetting die;

[0007] The lower upsetting die and the upper upsetting die are arranged oppositely, and chamfers are arranged on one side of the front and rear surfaces of the upper upsetting die and the lower upsetting die close to the upper die holder or the lower die base;

[0008] A guide post blind hole is arranged on each side of the concave cavity of the lower die base, corresponding guide post through holes are symmetrically arranged on both sides of the concave cavity of the upper die holder, the guiding structure is inserted into the guide post blind hole from the guide post through hole, the guiding structure includes a guide rod and an elastic device sleeved on the guide rod, and a pressing block is arranged on the top of the guide rod, and the radius of the pressing block is not less than the radius of the elastic device.

[0009] Further, the upper or lower dropping die includes a first inclined section, an arc section, and a second inclined section. The first inclined section and the second inclined section are symmetrically and fixedly arranged at both ends of the arc section, and the first inclined section and the second inclined section are tangent to the arc section.

[0010] Further, the ends of the first inclined section and the second inclined section are flush with the opposite side of the upper die holder or the lower die base.

[0011] Further, both ends of the upper and lower dropping dies can extend to the guiding structure. When both ends of the upper and lower dropping dies extend to the guiding structure, a slot adapted to the size of the guiding structure is opened at the center in the thickness direction of the upper and lower dropping dies, and the slot extends from the left and right ends of the upper and lower dropping dies towards the middle.

[0012] Further, the elastic device is a compression spring.

[0013] Further, lifting holes are also provided on the upper die holder and the lower die base. The lifting holes are fixedly opened based on the outer edge of the guide post through-hole, and the lifting holes provided on the upper die holder or the lower die base are located at the same horizontal position.

[0014] Compared with the prior art, the beneficial effects of the present utility model include: the forging process of the blank is completed through the cooperation of the lower dropping die arranged on the lower die base and the upper dropping die arranged on the upper die holder. The chamfers provided on the front and back surfaces of the upper and lower dropping dies can avoid damaging the forgings. The compression spring in the guiding structure is used to adjust the end spacing between the upper and lower dropping dies, so that the combined forging press universal forging die can adapt to the forging process of forgings within a certain diameter range and has a certain degree of universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the protection scope of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0016] Figure 1 Schematically shows the front perspective structure of the combined forging press universal forging die;

[0017] Figure 2 Schematically shows the side perspective structure of the combined forging press universal forging die.

[0018] Reference numerals in the figures: 1 - lower die base, 2 - lower dropping die, 3 - upper die holder, 4 - upper dropping die, 5 - guide rod, 6 - pressure block, 7 - compression spring, 8 - first inclined section, 9 - arc section, 10 - second inclined section, 11 - lifting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] It is easy to understand that according to the technical solution of the present utility model, without changing the essential spirit of the present utility model, those of ordinary skill in the art can propose various interchangeable structural forms and implementation manners. Therefore, the following specific embodiments and the accompanying drawings are only exemplary illustrations of the technical solution of the present utility model, and should not be regarded as all of the present utility model or as a limitation or restriction on the technical solution of the present utility model.

[0020] Figure 1 Schematically shows the front perspective structure of the combined forging press general forging die; Figure 2 Schematically shows the side perspective structure of the combined forging press general forging die. A combined forging press general forging die is as Figure 1-2 shown, including a lower die base 1, a lower swaging die 2, an upper die holder 3, an upper swaging die 4 and a guiding structure; a cavity for accommodating the lower swaging die 2 is provided on the lower die base 1, and the cavity penetrates the front and rear surfaces of the lower die base 1. The lower swaging die 2 is arranged in the cavity, and a triangular groove penetrating the front and rear surfaces of the lower swaging die 2 is provided on the lower swaging die 2; a cavity for accommodating the upper swaging die 4 is also provided on the upper die holder 3, and the cavity penetrates the front and rear surfaces of the upper die holder 3. The upper swaging die 4 is arranged in the cavity, and a triangular groove penetrating the front and rear surfaces of the upper swaging die 4 is provided on the upper swaging die 4. The aforementioned lower swaging die 2 and the upper swaging die 4 are arranged oppositely, and chamfers are provided on one side of the upper swaging die 4 and the lower swaging die 2 close to the front and rear surfaces of the upper die holder 3 or the lower die base 1. A guide post blind hole is provided on each side of the cavity of the lower die base 1, and a guide post through hole is symmetrically provided on each side of the cavity of the corresponding upper die holder 3. The guiding structure is inserted into the guide post blind hole from the guide post through hole. The guiding structure includes a guiding rod 5 and an elastic device sleeved on the guiding rod 5. A pressing block 6 is provided at the top of the guiding rod 5. The radius of the pressing block 6 is not less than the radius of the elastic device. The guiding rod 5 guides the elastic device, and the pressing block 6 provided at the top of the guiding rod 5 presses the elastic device.

[0021] The structures of the upper swaging die 4 and the lower swaging die 2 are specifically described below. The upper swaging die 4 or the lower swaging die 2 includes a first inclined section 8, an arc section 9 and a second inclined section 10. The first inclined section 8 and the second inclined section 10 are symmetrically and fixedly arranged at both ends of the arc section 9, and the first inclined section 8 and the second inclined section 10 are tangent to the arc section 9; the ends of the aforementioned first inclined section 8 and the second inclined section 10 are flush with the opposite side of the upper die holder 3 or the lower die base 1.

[0022] Both ends of the foregoing upper forging die 4 and lower forging die 2 can extend to the guiding structure. When both ends of the upper forging die 4 and lower forging die 2 extend to the guiding structure, a slot adapted to the size of the guiding structure is opened along the center in the thickness direction of the upper forging die 4 and lower forging die 2, and the slot extends from the left and right ends of the upper forging die 4 and lower forging die 2 towards the middle. In some embodiments, when the width of the upper forging die 4 and lower forging die 2 is less than the distance between the guiding structures on both sides, there is no need to open a slot adapted to the size of the guiding structure along the center in the thickness direction of the upper forging die 4 and lower forging die 2; in some other embodiments, when the width of the upper forging die 4 and lower forging die 2 is exactly equal to or slightly larger than the distance between the guiding structures on both sides, there is also no need to open a slot adapted to the size of the guiding structure along the center in the thickness direction of the upper forging die 4 and lower forging die 2.

[0023] The elastic device sleeved on the guiding rod 5 is a compression spring 7. The inner diameters of the guiding column through hole and the guiding column blind hole are slightly larger than the outer diameter of the foregoing compression spring 7, so that the compression spring 7 can be easily arranged in the guiding column through hole and the guiding column blind hole. For the convenience of hoisting the upper die holder 3 and the lower die base 1, hoisting holes 11 are also arranged on the upper die holder 3 and the lower die base 1. The hoisting holes 11 are fixedly opened based on the outer edge of the guiding column through hole. The hoisting holes 11 arranged on the upper die holder 3 or the lower die base 1 are located at the same horizontal position, which is convenient to ensure the balance of the upper die holder 3 and the lower die base 1 during the hoisting process. It is worth noting that the depth of the hoisting hole 11 is less than the distance between the front and rear surfaces of the upper die holder 3 or the lower die base 1 and the guiding column through hole and the guiding column blind hole, so that the position of the hoisting hole 11 does not conflict with the positions of the guiding column through hole and the guiding column blind hole.

[0024] The forging process of the blank is completed through the cooperation of the lower forging die 2 arranged on the lower die base 1 and the upper forging die 4 arranged on the upper die holder 3. The chamfers arranged on the front and rear surfaces of the upper forging die 4 and the lower forging die 2 can avoid damaging the forgings. The compression spring 7 in the guiding structure is used to adjust the end spacing between the upper forging die 4 and the lower forging die 2, so that the combined forging press universal forging die can adapt to the forging process of forgings within a certain diameter range. Specifically, when the spacing between the first inclined section 8 in the upper forging die 4 and the second inclined section 10 in the lower forging die 2 is 690 mm, the maximum diameter of the forgings that can be processed is 690 mm. And the spacing between the upper die holder 3 and the lower die base 1 is 150 mm, then the minimum diameter of the forgings that can be processed is 540 mm. Therefore, cylindrical forgings between 540 - 690 mm can all be forged by the forging die of this size.

[0025] The technical scope of the present utility model is not limited only to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present utility model, and these deformations and modifications should all fall within the protection scope of the present utility model.

Claims

1. A combined forging press general forging die, characterized in that, It includes a lower die base (1), a lower dropping die (2), an upper die carrier (3), an upper dropping die (4) and a guiding structure; A cavity for accommodating the lower dropping die (2) is provided on the lower die base (1), the cavity penetrates through the front and rear surfaces of the lower die base (1), the lower dropping die (2) is arranged within the cavity, and a triangular groove penetrating through the front and rear surfaces of the lower dropping die (2) is provided on the lower dropping die (2); A cavity for accommodating the upper dropping die (4) is provided on the upper die carrier (3), the cavity on the upper die carrier (3) penetrates through the front and rear surfaces of the upper die carrier (3), the upper dropping die (4) is arranged within the cavity, and a triangular groove penetrating through the front and rear surfaces of the upper dropping die (4) is provided on the upper dropping die (4); The lower dropping die (2) and the upper dropping die (4) are arranged oppositely, and chamfers are provided on one side of the front and rear surfaces of the upper dropping die (4) and the lower dropping die (2) close to the upper die carrier (3) or the lower die base (1); A guide post blind hole is provided on each side of the cavity of the lower die base (1), guide post through holes are symmetrically provided on both sides of the cavity of the corresponding upper die carrier (3), the guiding structure is inserted into the guide post blind hole from the guide post through hole, the guiding structure includes a guide rod (5) and an elastic device sleeved on the guide rod (5), a pressing block (6) is provided at the top of the guide rod (5), and the radius of the pressing block (6) is not less than the radius of the elastic device.

2. The combined forging press general forging die according to claim 1, wherein The upper dropping die (4) or the lower dropping die (2) includes a first inclined section (8), an arc section (9) and a second inclined section (10), the first inclined section (8) and the second inclined section (10) are symmetrically and fixedly arranged at both ends of the arc section (9), and the first inclined section (8) and the second inclined section (10) are tangent to the arc section (9).

3. The combined forging press general forging die according to claim 2, wherein, The ends of the first inclined section (8) and the second inclined section (10) are flush with the opposite side of the upper die carrier (3) or the lower die base (1).

4. The combined forging press general forging die according to claim 3, characterized in that Both ends of the upper dropping die (4) and the lower dropping die (2) can extend to the guiding structure. When both ends of the upper dropping die (4) and the lower dropping die (2) extend to the guiding structure, a slot adapted to the size of the guiding structure is opened at the center in the thickness direction of the upper dropping die (4) and the lower dropping die (2), and the slot extends from the left and right ends of the upper dropping die (4) and the lower dropping die (2) towards the middle.

5. The combined forging press general forging die according to claim 1, characterized in that The elastic device is a compression spring (7).

6. The combined forging press general forging die according to claim 1, characterized in that, Lifting holes (11) are further provided on the upper die carrier (3) and the lower die base (1), the lifting holes (11) are fixedly opened based on the outer edge of the guide post through holes, and the lifting holes (11) provided on the upper die carrier (3) or the lower die base (1) are located at the same horizontal position.

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