Automatic mold stripping tool for forming die forging of round cake type forgings

Abstract

The utility model relates to the field of forming die forging of round cake type forgings, in particular to an automatic die stripping tool for forming die forging of round cake type forgings. The mold stripping tool comprises a fixed tire mold plate, an ejection block and an ejection plate; the ejector plate is mounted in a die holder cavity of the die forging equipment; the ejection block and the ejection plate jointly form an ejection tool, the ejection block is embedded in the middle of the ejection plate, and the ejection block has a lower ejection function; the tire mold is placed in the middle of the ejector plate, the tire mold is sleeved with a center hole of the fixed tire mold plate, the two ends of the fixed tire mold plate are fixed into a mold base cavity of die forging equipment, and the tire mold is fixed to the equipment.

Description

Technical Field

[0001] The utility model relates to the field of membrane forging for round cake-like forgings, in particular to an automatic demoulding tool for membrane forging for round cake-like forgings. Background Art

[0002] Die forging is a process for producing die forgings using a movable die on open-die forging equipment. Compared to die forging, die forging features simpler dies, easier manufacturing, lower costs, and shorter lead times. However, it also has a number of disadvantages, including poor surface quality and increased labor intensity.

[0003] Our unit produces a number of magnesium alloy disc forgings. Due to their characteristics, they are produced using die forging on open-die forging equipment. Each time the die is ejected, the die must be flipped and hammered to release the forging. After the forging is ejected, the die is flipped back and production continues. This creates a series of issues during production, including difficulty ejecting the forging, slowing cooling rates, affecting the microstructure and performance of the forgings, making the operation difficult, and increasing labor intensity. Utility Model Content

[0004] Purpose of the utility model: In order to solve the problems of difficulty in demolding, difficult operation, heavy labor for workers, difficulty in demolding, and slow forging cooling speed during the forging of the membrane of round forgings, a tooling is designed that can fix the membrane mold on the equipment and can use the lower ejector equipment of the equipment to realize the automatic demolding function.

[0005] Technical solution:

[0006] Provided is an automatic demoulding tool for forging of round cake-type forgings, comprising: a fixed membrane plate, an ejector block, and an ejector plate;

[0007] The ejector plate is installed in the die base cavity of the die forging equipment; the ejector block and the ejector plate together constitute the ejector tooling, and the ejector block is embedded in the middle of the ejector plate. The ejector block has the function of lower ejection; the fetal membrane mold is placed in the middle of the ejector plate, and the center hole of the fixed fetal membrane plate is sleeved on the fetal membrane mold. The two ends of the fixed fetal membrane plate are fixed in the die base cavity of the die forging equipment to achieve the fixation of the fetal membrane mold on the equipment;

[0008] When the lower ejection function of the die forging equipment is started, the ejector rod of the die forging equipment presses against the lower plane of the ejector block, and the upper plane of the ejector block presses against the lower plane of the round cake forging in the membrane mold. As the ejection force increases, the membrane mold is fixed on the equipment by the membrane plate and cannot move up and down. The round cake forging is ejected from the membrane mold under the action of the ejection force, thereby realizing the automatic demolding of the membrane mold.

[0009] Furthermore, the fetal membrane mold is designed to be in the shape of a circular hollow step that is smaller at the top and larger at the bottom.

[0010] Furthermore, the fixed membrane plate cooperates with the step of the membrane mold to fix the membrane mold.

[0011] Furthermore, the ejector block is designed to be larger at the top and smaller at the bottom.

[0012] Furthermore, the fetal membrane mold ensures that the thickness of the upper circle wall of the fetal membrane mold is greater than 30 mm.

[0013] Furthermore, both the fixed diaphragm plate and the ejection plate are provided with threaded holes for screwing screws into the threaded holes, thereby facilitating the disassembly and transportation of the tooling.

[0014] The beneficial effects are:

[0015] The design of this tooling not only retains the characteristics of the tire die forging mold, which is simple, easy to manufacture, low cost, and short production preparation cycle, but also realizes automatic demoulding and easy operation, which reduces the labor intensity of workers and improves production efficiency. It also has important reference value for the tire die forging of other products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the various components of the automatic demoulding tooling for the membrane forging of round cake-type forgings of the utility model;

[0017] Figure 2 This is a schematic diagram of the combined use of the automatic demoulding tooling for forging membranes of round cake-type forgings of the utility model;

[0018] Among them, 1 is the fixed membrane plate, 2 is the membrane mold, 3 is the ejector block, 4 is the ejector plate, and 5 is the threaded hole. DETAILED DESCRIPTION

[0019] In response to the problems raised in the background technology, these round cake forgings are transferred to die forging equipment for production. The original membrane forging mold is used, and the lower ejector equipment of the equipment is utilized. The mold is fixed to the forging equipment through designed tooling, and then the ejection tooling is designed to realize automatic demolding of the product. There is no need to flip and move the mold multiple times, which facilitates operation and reduces the labor intensity of workers.

[0020] The utility model proposes an automatic die-cutting tool for forging of round cake-type forgings. Figure 1-2 As shown, it includes a fixed fetal membrane plate 1, a fetal membrane mold 2, an ejection block 3, an ejection plate 4, and a threaded hole 5.

[0021] The fixed diaphragm plate 1 is used to secure the diaphragm and secure the diaphragm mold 2 to the equipment, preventing the mold 2 from moving significantly forward, backward, left, right, or up and down during forging. The fixed diaphragm plate 1 cooperates with the stepped portion of the mold to secure the mold. The inner diameter of the fixed diaphragm plate 1 should be 10-15 mm larger than the outer diameter of the upper circle of the mold 2.

[0022] The membrane mold 2 needs to be machined into a circular, hollow, stepped shape as shown in the figure, which facilitates securing the membrane plate 1 and the membrane mold 2 to the equipment. The membrane mold 2 should be sized to ensure that the upper wall thickness of the membrane mold is greater than 30mm, so that the mold will not crack during forging due to the thin wall thickness.

[0023] The ejection block 3 and the ejection plate 4 together constitute the ejection tooling. When the lower ejection function of the equipment is started, the ejection equipment presses on the lower plane of the ejection block 3, and the upper plane of the ejection block 3 presses on the lower plane of the round cake forging. As the ejection force increases, the fetal membrane mold 2 is fixed and the fetal membrane plate 1 is fixed on the equipment and cannot move up and down. The round cake forging is ejected from the fetal membrane mold 2 under the action of the ejection force, thereby realizing the automatic demolding of the fetal membrane mold.

[0024] The ejector block 3 is designed to be larger at the top and smaller at the bottom. The smaller bottom is because the ejector rod of the ejector equipment is Φ50mm in size, and the larger top is to increase the contact area between the ejector block and the forging to avoid pressure concentration caused by too small a contact area and damage to the forging.

[0025] The threaded hole 5 is designed to facilitate the disassembly of the tooling. The screw is screwed into the threaded hole to facilitate the disassembly and transportation of the tooling.

[0026] Example 1

[0027] For example, take a certain type of round forging as an example. Its material is MB15, and its outline size is Φ210×90mm. The original membrane mold of the forging is a circular ring with dimensions of Φ320×Φ210×95mm, and has a 3° demolding angle inside.

[0028] Initially, these forgings were produced using a molded die on open-die forging equipment. Due to the draft angle, each time the die was ejected, the mold had to be flipped over and hammered to release the forging. After the forging was ejected, the mold was flipped back over and production continued. This process presented a series of challenges, including difficulty in ejecting the forging, high labor intensity, and significant risk. Furthermore, the complex and multi-step ejection process resulted in slow cooling, impacting the microstructure and performance of the forging.

[0029] To address these issues, this product was transferred to the die forging equipment, the original tire membrane mold was used, the lower ejection device of the equipment was utilized, and tooling was designed to fix the tire mold to the forging equipment, and then the ejection tooling was designed to achieve automatic demolding of the product.

[0030] The die of the die forging equipment is an insert die with a maximum size of 600×400×120mm; the ejector rod of the ejector device is Φ50mm.

[0031] The upper part of the membrane mold 2 is machined into a ring of Φ270×Φ210×45mm, and the lower part remains in its original size without machining;

[0032] The outer dimensions of the fixed membrane plate 1 are 600×400×20mm, and the inner part is hollow with a size of Φ280×20mm;

[0033] The ejector block 3 is in the shape of an inverted circular step, with the upper part measuring Φ120×10mm and the lower part measuring Φ60×10mm;

[0034] The outer contour dimensions of the ejector plate 4 are 600×400×20 mm, and the inner dimensions match those of the ejector block 3 with a clearance of 0.2 to 0.3 mm, and the ejector plate 4 is trimmed from the ejector block 3 .

[0035] The threaded hole 5 is an M10 through hole.

[0036] By using the utility model in production, the organizational performance and production efficiency of the product are significantly improved.

[0037] The utility model not only retains the characteristics of the fetal membrane mold being simple, easy to manufacture, low cost and short production preparation period, but also realizes automatic demoulding, is easy to operate, reduces the labor intensity of workers and improves production efficiency.

Claims

1. An automatic demoulding tool for forging of round cake-type forgings, characterized in that: The automatic ejection tooling for the membrane forging of round forgings is transferred to the die forging equipment. The membrane die is used, and the lower ejection device of the die forging equipment is used. The automatic ejection tooling fixes the membrane die to the die forging equipment, and then ejects the tooling to realize the automatic ejection of the product. The tooling comprises: a fixed membrane plate (1), an ejection block (3), and an ejection plate (4); The ejector plate (4) is installed in the die base cavity of the die forging equipment; the ejector block (3) and the ejector plate (4) together constitute an ejector tooling, the ejector block (3) is buried in the middle of the ejector plate (4), and the ejector block (3) has a lower ejection function; the fetal membrane mold (2) is placed in the middle of the ejector plate (4), the center hole of the fixed fetal membrane plate (1) is sleeved on the fetal membrane mold (2), and the two ends of the fixed fetal membrane plate (1) are fixed in the die base cavity of the die forging equipment, so that the fetal membrane mold (2) is fixed on the equipment; When the lower ejection function of the die forging equipment is started, the ejector rod of the die forging equipment presses against the lower plane of the ejection block (3), and the upper plane of the ejection block (3) presses against the lower plane of the circular forging in the membrane mold (2). As the ejection force increases, the membrane mold (2) is fixed to the membrane plate (1) on the equipment and cannot move up and down. The circular forging is ejected from the membrane mold (2) under the action of the ejection force, thereby realizing automatic demolding of the membrane mold.

2. The demoulding tooling according to claim 1, characterized in that: The fetal membrane mold (2) is designed to be in the shape of a circular hollow step with a small top and a large bottom.

3. The demoulding tooling according to claim 1, characterized in that: The fixed fetal membrane plate (1) cooperates with the step of the fetal membrane mold (2) to achieve fixation of the fetal membrane mold (2).

4. The demoulding tooling according to claim 1, characterized in that: The ejector block (3) is designed to be larger at the top and smaller at the bottom.

5. The demoulding tooling according to claim 1, characterized in that: The fetal membrane mold (2) ensures that the thickness of the upper circle wall of the fetal membrane mold is greater than 30 mm.

6. The demoulding tooling according to claim 1, characterized in that: The fixed diaphragm plate (1) and the ejection plate (4) are both provided with threaded holes for screwing screws into the threaded holes, thereby facilitating the disassembly and transportation of the tooling.

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