Square blank free forging molding die

Abstract

The utility model relates to a free forging molding die for a square blank. The free forging molding die comprises a main body, an inner cavity is longitudinally formed in the main body; the inner cavity is sequentially provided with a base molding cavity, a base forming cavity, a tetragonal forming cavity, a tetragonal molding cavity and a base accommodating cavity from top to bottom; longitudinal bar forming holes are formed in the side face of the body. The longitudinal bar forming hole is communicated with the inner cavity, a plurality of forming plates are arranged in the longitudinal bar forming hole, and the longitudinal section of the plurality of forming plates after being attached is matched with the longitudinal section of the longitudinal bar forming hole. The technical scheme provided by the embodiment of the utility model has the beneficial effects that the upper side and the lower side of the inner cavity of the main body can be used for molding, the lower side faces upwards and is firstly used for secondary forging of a square blank square body, and the upper side faces upwards and is continuously used for secondary forging of a square blank base; in addition, longitudinal bar forming holes are formed in the side face of the main body, preliminary forming of side face longitudinal bars is carried out through superposition of a plurality of forming plates, and the positions of the longitudinal bars can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the square blank forging field especially, and it relates to a square blank free forging plastic die. BACKGROUND

[0002] The structure of the square blank after forming is roughly as shown in the figure Figure 1 Because the square and the base have a fault, the base will be damaged without the support of the die when free forging is needed, and the free forging of the longitudinal rib also needs the support of the die.

[0003] Chinese patent application No. 201510369335.5, published on October 28, 2015, discloses a die for white mountain forging different shaped workpieces. However, the die is not suitable for the free forging of the square blank after forming as in Figure 1 Therefore, there is an urgent need for a square blank free forging plastic die to continue forging and primary processing of the longitudinal rib of the square blank. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a square blank free forging plastic die to solve the problem that the existing die is not suitable for the continued forging and primary processing of the longitudinal rib of the square blank.

[0005] To overcome the problems in the related art, the utility model embodiment provides a square blank free forging plastic die, which comprises a main body;

[0006] An inner cavity is longitudinally formed in the main body; the inner cavity is sequentially formed from top to bottom as a base plastic cavity, a base forming cavity, a square body forming cavity, a square body plastic cavity, and a base accommodating cavity; the base plastic cavity has a gradually changing structure, and the cross-sectional area of the upper side is larger than that of the lower side; the lower end surface of the base plastic cavity coincides with the upper end surface of the base forming cavity; the square body plastic cavity has a gradually changing structure, and the cross-sectional area of the upper side is smaller than that of the lower side; the upper end surface of the square body plastic cavity coincides with the lower end surface of the square body forming cavity.

[0007] A longitudinal rib forming hole is formed in the side surface of the main body; the longitudinal rib forming hole is in communication with the inner cavity, and a plurality of forming plates are arranged in the longitudinal rib forming hole; the longitudinal cross section of the plurality of forming plates after being attached matches the longitudinal cross section of the longitudinal rib forming hole.

[0008] In some embodiments, the forming plates comprise a first forming plate, a second forming plate, and a third forming plate; the end of the first forming plate is arc-shaped; and the length of the second forming plate is smaller than that of the third forming plate.

[0009] In some embodiments, the number of the first forming plates, the second forming plates and the third forming plates is two, two first forming plates are respectively located on both sides, two third forming plates are located in the middle, and two second forming plates are respectively located between the first forming plates and the third forming plates.

[0010] In some embodiments, a matching structure is arranged between two adjacent forming plates, and the matching structure can realize relative sliding towards the inner cavity.

[0011] In some embodiments, the matching structure is a groove and a protrusion towards the inner cavity.

[0012] In some embodiments, the upper end of the cuboid forming cavity is arc-shaped and smoothly transitions.

[0013] In some embodiments, the depth of the base accommodating cavity is greater than the base depth of the quadrangular blank.

[0014] In some embodiments, the depth of the base forming cavity is equal to the base depth of the quadrangular blank.

[0015] The technical scheme provided by the embodiment of the utility model can have the following beneficial effects: the inner cavity of the main body can be used for plastic forming on both sides, the lower side is used for secondary forging of the quadrangular blank cuboid first, and the upper side is used for secondary forging of the base of the quadrangular blank; in addition, the main body side has a longitudinal rib forming hole, the preliminary forming of the side longitudinal rib is performed through the superposition of multiple forming plates, and the position of the longitudinal rib can be adjusted.

[0016] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the utility model, and together with the specification, are used to explain the principles of the utility model.

[0018] Figure 1 is a quadrangular blank structure schematic view.

[0019] Figure 2 is a top view schematic view of a quadrangular blank free forging plastic forming die according to an exemplary embodiment.

[0020] Figure 3 is a front view longitudinal sectional view of a quadrangular blank free forging plastic forming die according to an exemplary embodiment.

[0021] Figure 4 is a side view longitudinal sectional view of a quadrangular blank free forging plastic forming die according to an exemplary embodiment.

[0022] Figure 5 is a top view of a square blank free forging plastic forming die according to an exemplary embodiment.

[0023] Figure 6 is a schematic view of a matching structure between adjacent forming plates according to an exemplary embodiment.

[0024] In the figure, 1, main body; 2, inner cavity; 201, base plastic forming cavity; 202, base forming cavity; 203, square body forming cavity; 204, square body plastic forming cavity; 205, base accommodating cavity;

[0025] 3, longitudinal rib forming hole; 4, first forming plate; 5, second forming plate; 6, third forming plate; 7, matching structure. DETAILED DESCRIPTION

[0026] Among them, the drawings are only used for example, the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the utility model, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings may be omitted.

[0027] As Figures 2 to 6 shown, some specific embodiments of a square blank free forging plastic forming die are provided, which include a main body 1, and the outer contour of the main body 1 is a cubic structure.

[0028] A longitudinal inner cavity 2 is formed in the main body 1, which is used for plastic forming of the square blank during forging. The inner cavity 2 is sequentially formed from top to bottom as a base plastic forming cavity 201, a base forming cavity 202, a square body forming cavity 203, a square body plastic forming cavity 204 and a base accommodating cavity 205.

[0029] More specifically, the base plastic forming cavity 201 is a tapered structure, the upper cross-sectional area is larger than the lower cross-sectional area, and the lower end surface of the base plastic forming cavity 201 coincides with the upper end surface of the base forming cavity 202, that is, the base of the square blank is gradually formed from the base plastic forming cavity 201 and enters the base forming cavity 202 for forming during use. The square body plastic forming cavity 204 is a tapered structure, the upper cross-sectional area is smaller than the lower cross-sectional area, and the upper end surface of the square body plastic forming cavity 204 coincides with the lower end surface of the square body forming cavity 203, and similarly, the square body of the square blank is gradually formed from the square body plastic forming cavity 204 and enters the square body forming cavity 203 for forming during use.

[0030] The depth of the base accommodating cavity 205 is greater than the depth of the base of the square blank, so as to avoid that the base of the square blank is limited by the base accommodating cavity 205 when the square body of the square blank is forged through the square body plastic forming cavity 204.

[0031] In the specific operation, first, the main body 1 is inverted, the four-square body of the four-square blank is inserted into the four-square plastic cavity 204, and then the downward hammering is started, so that the four-square body of the four-square blank is shaped through the four-square plastic cavity 204 into the four-square forming cavity 203. The depth of the base forming cavity 202 is equal to the depth of the base of the four-square blank, so as to achieve the purpose of forming the four-square body of the four-square blank. Then the four-square blank is knocked out of the main body 1, and the main body 1 is placed vertically, then the four-square body of the four-square blank is inserted into the four-square forming cavity 203 from the base plastic cavity 201, and the hammering is performed, so that the base of the four-square blank is shaped into the base plastic cavity 201, and then into the base forming cavity 202, so as to achieve the purpose of forming the base of the four-square blank.

[0032] More specifically, the upper end of the four-square forming cavity 203 is arc-shaped and smoothly transitions, on the one hand, the four-square body of the four-square blank is more easily inserted into the four-square forming cavity 203 from the base plastic cavity 201, on the other hand, the root of the four-square body of the four-square blank is also forged into an arc shape when forging the base of the four-square blank.

[0033] In addition, the longitudinal rib forming hole 3 is provided on the side of the main body 1, which is used for forging the longitudinal rib of the four-square body of the four-square blank. The longitudinal rib forming hole 3 is through the inner cavity 2, and a plurality of forming plates can be installed in the longitudinal rib forming hole 3. The longitudinal section of the plurality of forming plates after being attached matches the longitudinal section of the longitudinal rib forming hole 3, that is, the forming plates can fill the longitudinal rib forming hole 3, and then move forward and backward in the longitudinal rib forming hole 3 for forging.

[0034] In order to adapt to the longitudinal rib forming at different positions, more specifically, the forming plates include the first forming plate 4, the second forming plate 5 and the third forming plate 6, the end of the first forming plate 4 is arc-shaped, the length of the second forming plate 5 is less than the length of the third forming plate 6, and the length of the second forming plate 5 is small enough to ensure that there is a space for the second forming plate 5 when hammering, so that a convex can be formed to achieve the effect of the longitudinal rib, that is, the second forming plate 5 is arranged at which position when used, and the longitudinal rib can be formed at which position. The different positions of the longitudinal rib are achieved by arranging the forming plates in different ways.

[0035] In the specific embodiment, the number of the first forming plate 4, the second forming plate 5 and the third forming plate 6 is two, two first forming plates 4 are respectively located on both sides, two third forming plates 6 are located in the middle, and two second forming plates 5 are respectively located between the first forming plate 4 and the third forming plate 6. The first forming plate 4 on both sides is used for hammering the edge of the four-square body of the four-square blank to keep the arc shape, and the second forming plate 5 is used for forming the longitudinal rib.

[0036] In order to guarantee the cooperation effect between the forming plates, the cooperation structure 7 is arranged between the two adjacent forming plates, and the cooperation structure 7 can realize the relative sliding towards the inner cavity 2. In the embodiment, the cooperation structure 7 is a groove and a protrusion towards the inner cavity 2, and the forming plates can move together in the longitudinal rib forming hole 3 during the forging, the square of the square blank is hammered, and the forming plates can also relatively slide to avoid being stuck.

[0037] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0038] It is to be understood that the application is not limited to the specific structures that have been described and that shown in the drawings, and that since modifications and changes can be made in the embodiments without departing from the scope of the application. The application is defined by the claims appended hereto.

Claims

1. A square blank free forging swage mold characterized by, The utility model provides a four -sided square blanking device, including a main part, the main part is provided with the longitudinal cavity in the inside, the cavity is sequentially provided with the base plastic cavity, base forming cavity, four -sided square forming cavity, four -sided square plastic cavity and base accommodating cavity from top to bottom, the base plastic cavity is gradually changed structure, and the upper cross -section area is greater than the lower cross -section area, and the lower end surface of base plastic cavity coincides with the upper end surface of base forming cavity, and the four -sided square plastic cavity is gradually changed structure, and the upper cross -section area is less than the lower cross -section area, and the upper end surface of four -sided square plastic cavity coincides with the lower end surface of four -sided square forming cavity, The main part is provided with the longitudinal rib forming hole in the side, and the longitudinal rib forming hole is through with the cavity, and a plurality of forming plates are arranged in the longitudinal rib forming hole, and the longitudinal section of the plurality of forming plates after sticking is matched with the longitudinal section of the longitudinal rib forming hole. The forming plate includes first forming plate, second forming plate and third forming plate, and the end of the first forming plate is arc-shaped, and the length of the second forming plate is less than the length of the third forming plate.

2. The square blank free forging swage mold according to claim 1, wherein, The number of the first forming plate, the second forming plate and the third forming plate is two, two first forming plates are located on both sides respectively, two third forming plates are located in the middle, and two second forming plates are located between the first forming plate and the third forming plate respectively.

3. The square blank free forging swage mold according to claim 2, wherein, The cooperation structure is provided between the adjacent two forming plates, and the cooperation structure can realize the relative sliding towards the cavity.

4. The square blank free forging swage mold according to claim 3, wherein, The cooperation structure is the recess and the convex towards the cavity.

5. The square blank free forging swage mold of claim 4, wherein, The upper end of the four -sided square forming cavity is arc -shaped smooth transition.

6. The square blank free forging swage mold of claim 1, wherein, The depth of the base accommodating cavity is greater than the base depth of the four -sided square blank.

7. The square blank free forging swage mold of claim 1, wherein, The depth of the base forming cavity is equal to the base depth of the four -sided square blank.

8. The square blank free forging swage mold of claim 1, wherein, ​

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