Product sinking forming die

Abstract

The utility model provides a forming die for product sinking. The forming die comprises an upper die plate (1), a male die (3), a female die (4), a lower die base (5) and a positioning pin (7). The lower die holder (5) is an assembly and comprises a base plate and a cantilever structure, and a cantilever beam of the cantilever structure is parallel to the base plate; the female die (4) is arranged above the tail end of the cantilever beam; a positioning pin (7) is arranged on the female die (4); the thicknesses of the cantilever beam and the female die (4) are smaller than the inner diameter of the end face of the product tail section; the female die (4) is sleeved with a product, and the positioning pin (7) is sleeved with a bottom hole in the position, to be machined, of the product. The male die (3) is fixed below the upper die plate (1), and the upper die plate (1) is fixed below a sliding block of an oil press. A positioning hole matched with the positioning pin (7) is formed in the male die (3); product sunken molded surfaces are correspondingly designed on the male die (3) and the female die (4). The tail-section skin with the small opening inner diameter size can be assembled and disassembled on the mold, and sinking forming on the skin is achieved; and the problem of interference between the inner surface of the skin with the small opening inner diameter size and a cantilever of the press machine is solved.

Description

Technical Field

[0001] The utility model belongs to the field of special process equipment, and in particular relates to a product sinking forming die. Background Art

[0002] There is a sunken recess on the tail section skin of a certain product, which is used to assemble the tail swivel seat so that the tail swivel seat and the skin fit together in a flat surface for easy sealing.

[0003] like Figure 3 and 4 As shown, the skin part is a cone, and the depression is close to the small end of the skin.

[0004] When a conventional sinking die is installed on a cantilever press to form a sinking cavity, the inner surface of the skin will interfere with the cantilever of the press due to the small inner diameter of the tail section skin, making it difficult to form using conventional methods. Utility Model Content

[0005] The purpose of the utility model is to provide a product sinking forming die, in order to achieve the sinking dimple forming requirement on a small-caliber skin, realize the consistency of the sinking dimple forming, and improve the production efficiency.

[0006] The utility model provides a product sinking forming die, comprising: an upper die plate 1, a punch 3, a die 4, a lower die base 5, and a positioning pin 7;

[0007] The lower die base 5 is an assembly comprising a base plate and a cantilever structure, wherein the cantilever beam of the cantilever structure is parallel to the base plate; the die 4 is arranged above the end of the cantilever beam; a positioning pin 7 is provided on the die 4; the thickness of the cantilever beam and the die 4 is less than the inner diameter of the end face of the product tail section;

[0008] The product is sleeved on the die 4, and the bottom hole of the product to be processed is sleeved on the positioning pin 7;

[0009] The punch 3 is fixed below the upper template 1, and the upper template 1 is fixed below the slide of the hydraulic press;

[0010] The punch 3 is provided with a positioning hole that matches the positioning pin 7;

[0011] The punch 3 and the die 4 are correspondingly designed with a surface for the product to sink.

[0012] Optionally, the lower die base 5 further includes two groups of oblique reinforcement ribs distributed on both sides of the vertical pole, one group connecting the cantilever beam and the vertical pole of the cantilever structure, and the other group connecting the vertical pole and the base plate.

[0013] Optionally, the base plate is not less than 40 cm in length, and the cantilever beam is projected within the outline of the base plate when viewed from above.

[0014] Optionally, the punch 3 is made of T12A carbon tool steel and quenched to HRC 60-64.

[0015] Optionally, the lower die seat 5 is made of 45 steel.

[0016] Optionally, the forming die for product sinking further comprises: the first set screw 2 and the second set screw 6.

[0017] The upper die plate 1 and the punch 3 are fixedly connected through the first set screw 2, and the punch 3 and the cantilever beam are fixedly connected through the second set screw 6.

[0018] Optionally, when the product is sleeved on the concave die 4, the product end sleeve part is connected to the inclined pull reinforcing rib connecting the cantilever beam and the vertical rod.

[0019] One end of the inclined pull reinforcing rib connecting the vertical rod and the base plate is connected to the top of the vertical rod.

[0020] Optionally, the vertical rod is welded to the base plate, and the height of the fillet weld of the vertical rod and the base plate is not less than 8 mm.

[0021] The utility model provides a kind of forming die for product sinking, with the tail section skin of smaller inner diameter size of mouth part can be mounted and dismounted on mould, realize the sinking forming on skin;The benefits of solving the interference problem of the skin inner surface of smaller inner diameter size of mouth part and press cantilever. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0023] Figure 1 It is a structure diagram of forming die for product sinking;

[0024] Figure 2 It is a left view of forming die;

[0025] Figure 3 It is a main sectional view of part;

[0026] Figure 4 It is a local enlarged view of part;

[0027] Explanation of reference signs:

[0028] Upper die plate 1, first set screw 2, punch 3, concave die 4, lower die seat 5, second set screw 6, positioning pin 7. DETAILED DESCRIPTION

[0029] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. The following text is only used to describe one or several specific implementations of the present invention and does not strictly limit the scope of protection specifically claimed by the present invention.

[0030] The product sinking forming die provided by the present invention will be explained below with reference to the accompanying drawings.

[0031] The utility model provides a product sinking forming die, comprising: an upper die plate 1, a punch 3, a die 4, a lower die base 5, and a positioning pin 7;

[0032] The lower die base 5 is an assembly comprising a base plate and a cantilever structure, wherein the cantilever beam of the cantilever structure is parallel to the base plate; the die 4 is arranged above the end of the cantilever beam; a positioning pin 7 is provided on the die 4; the thickness of the cantilever beam and the die 4 is less than the inner diameter of the end face of the product tail section;

[0033] The product is sleeved on the die 4, and the bottom hole of the product to be processed is sleeved on the positioning pin 7;

[0034] The punch 3 is fixed below the upper template 1, and the upper template 1 is fixed below the slide of the hydraulic press;

[0035] The punch 3 is provided with a positioning hole that matches the positioning pin 7;

[0036] The punch 3 and the die 4 are correspondingly designed with a surface for the product to sink.

[0037] Optionally, the lower die base 5 further includes two groups of oblique reinforcement ribs distributed on both sides of the vertical pole, one group connecting the cantilever beam and the vertical pole of the cantilever structure, and the other group connecting the vertical pole and the base plate.

[0038] Optionally, the base plate is not less than 40 cm in length, and the cantilever beam is projected within the outline of the base plate when viewed from above.

[0039] Optionally, the punch 3 is made of T12A carbon tool steel and quenched to HRC60-64.

[0040] Optionally, the lower die base 5 is made of No. 45 steel.

[0041] Optionally, the product sinking forming die further comprises: a first set screw 2 and a second set screw 6;

[0042] The upper template 1 and the punch 3 are fixedly connected by a first set screw 2 , and the punch 3 and the cantilever beam are fixedly connected by a second set screw 6 .

[0043] Optionally, when the product is sleeved on the die 4, the end of the product is sleeved with a partially connected diagonal reinforcement rib connecting the cantilever beam and the vertical rod;

[0044] One end of the diagonal reinforcement connecting the vertical pole and the base plate is connected to the top of the vertical pole.

[0045] Optionally, the upright pole is welded to the base plate, and the height of the fillet weld between the upright pole and the base plate is not less than 8 mm.

[0046] like Figure 1 and Figure 2 As shown, the product sinking forming die provided by the present invention includes: an upper forming die plate 1, a first set screw 2, a punch 3, a die 4, a lower die base 5, a second set screw 6, and a positioning pin 7.

[0047] The small end of the tail section skin (such as Figure 3 and Figure 4 ) It is loaded into the die 4 from the left side of the loading, and positioned by the locating pin 7. The upper template 1 drives the punch 3 to move downward. Under the interaction of the punch 3 and the die 4, qualified parts can be formed.

[0048] A punch 3 is installed on the upper template 1. The punch is made of T12A carbon tool steel and quenched to HRC60-64 to achieve wear resistance and ensure the strength and rigidity of the punch.

[0049] The lower die base 5 is an assembly part, the main material of which is 45# steel. It has a cantilever structure, which allows the small end of the skin to be easily placed in. In order to increase the strength and rigidity, the lower die base adopts two sets of inclined reinforcement ribs to ensure the strength and rigidity of the lower die base.

[0050] The length of the base plate of the lower die base 5 is appropriately lengthened to increase the bending moment resistance of the relative stress point; the cantilever beam is projected within the bottom plate outline when viewed from above, ensuring the stability of the center of gravity of the entire lower die base, preventing eccentric rollover, and ensuring safe use.

[0051] The molding die's wearing parts are all disassembled to facilitate repair of damaged parts.

[0052] The assembly and positioning surfaces of the upper mold plate 1 and the punch 3, the die 4 and the lower mold base 5 are all ground flat to ensure that the force direction of the mold is perpendicular to the bottom surface of the lower mold base 5.

[0053] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A product sinking forming die, characterized in that: include: Upper mold plate (1), punch (3), die (4), lower mold base (5), positioning pin (7); The lower die base (5) is a combined component, comprising: a base plate and a cantilever structure, wherein the cantilever beam of the cantilever structure is parallel to the base plate; the die (4) is arranged above the end of the cantilever beam; a positioning pin (7) is provided on the die (4); the thickness of the cantilever beam and the die (4) is smaller than the inner diameter of the end face of the product tail section; The product is sleeved on the die (4), and the bottom hole of the product to be processed is sleeved on the positioning pin (7); The punch (3) is fixed below the upper template (1), and the upper template (1) is fixed below the slide of the hydraulic press; The punch (3) is provided with a positioning hole that matches the positioning pin (7); The convex die (3) and the concave die (4) are correspondingly designed with a mold surface for sinking the product.

2. The product sinking forming die according to claim 1, characterized in that: The lower die base (5) further comprises two groups of obliquely stretched reinforcing ribs distributed on both sides of the vertical pole, one group connecting the cantilever beam and the vertical pole of the cantilever structure, and the other group connecting the vertical pole and the base plate.

3. The product sinking forming die according to claim 1, characterized in that: The length of the base plate shall not be less than 40cm, and the cantilever beam shall be projected within the outline of the base plate when viewed from above.

4. The product sinking forming die according to claim 1, characterized in that: The punch (3) is made of T12A carbon tool steel and quenched to HRC60-64.

5. The product sinking forming die according to claim 1, characterized in that: The lower die base (5) is made of 45 steel.

6. The product sinking forming die according to claim 1, characterized in that: Also includes: A first set screw (2) and a second set screw (6); The upper mold plate (1) and the punch (3) are fixedly connected via a first set screw (2), and the punch (3) and the cantilever beam are fixedly connected via a second set screw (6).

7. The product sinking forming die according to claim 2, characterized in that: When the product is sleeved on the die (4), the end of the product is sleeved with a portion of the oblique reinforcement ribs connecting the cantilever beam and the vertical rod; One end of the diagonal reinforcement connecting the vertical pole and the base plate is connected to the top of the vertical pole.

8. The product sinking forming die according to claim 2, characterized in that: The vertical pole is welded to the base plate, and the height of the fillet weld between the vertical pole and the base plate shall not be less than 8mm.

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