Electromagnetic valve cover hot forging die

Abstract

The utility model provides a hot forging die for a valve cover of an electromagnetic valve, relates to the technical field of hot forging dies, and aims to solve the technical problem that the processing efficiency is affected due to the fact that the valve cover of the electromagnetic valve produced by the hot forging die for the valve cover of the electromagnetic valve in the prior art has a large number of flashes. The electromagnetic valve cover hot forging die comprises an upper die and a lower die, a first boss is arranged on the lower end face of the upper die, a second boss is arranged on the side wall of the first boss, the lower end face of the second boss is flush with the first boss, a first groove and a second groove which are communicated with each other are formed in the upper end face of the lower die, and the second groove is formed in the side wall of the first groove. The lower end face of the first groove is flush with the lower end face of the second groove, the first groove and the second groove are matched with the first boss and the second boss respectively, a forming part is arranged on the lower end face of the first boss, a forming groove is formed in the bottom face of the first groove, and when the upper die and the lower die are closed, the first boss and the second boss enter the first groove and the second groove respectively. And a die cavity is formed among the first boss, the second boss, the first groove and the second groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot forging die technical field, specifically refers to electromagnetic valve bonnet hot forging die. BACKGROUND

[0002] Electromagnetic valve is the industrial equipment of electromagnetic control, is used to control fluid's automation basic element, belongs to actuator, is used in industrial control system adjusts medium's direction, flow, speed and other parameters. Electromagnetic valve can cooperate with different circuit to realize the expected control, and the precision and flexibility of control can be guaranteed.

[0003] Electromagnetic valve bonnet is one of the components of electromagnetic valve, and the commonly used production mode is hot forging. Hot forging process refers to the process of forging the metal above the recrystallization temperature, specifically refers to the heated metal blank is placed in the hot forging die and is pressed, so that the metal assumes the shape of the hot forging die cavity.

[0004] The die used for hot forging of electromagnetic valve bonnet mainly includes an upper die and a lower die, corresponding forming structures are arranged at the bottom end of the upper die and the upper end of the lower die, and the bottom end of the upper die and the upper end of the lower die abut during forming, and the two part forming structures form a total cavity to form the electromagnetic valve bonnet. Its defect is that when the die is closed, the gap between the cavity and the bottom end of the upper die and the upper end of the lower die is communicated in the circumferential direction, and the electromagnetic valve bonnet material is easy to enter the gap, resulting in a large amount of flash on the side wall of the formed electromagnetic valve bonnet, which needs to be further processed, reducing the production efficiency. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the utility model aims at providing an electromagnetic valve bonnet hot forging die to solve the technical problem that the electromagnetic valve bonnet produced by the electromagnetic valve bonnet hot forging die in the prior art has a large amount of flash, which affects the processing efficiency.

[0006] To solve the above technical problems, the utility model provides an electromagnetic valve bonnet hot forging die, which comprises an upper die and a lower die, a first boss is arranged on the lower end face of the upper die, a second boss is arranged on the side wall of the first boss, the lower end face of the second boss is flush with the first boss, a first groove and a second groove are arranged on the upper end face of the lower die and are communicated with each other, the second groove is arranged on the side wall of the first groove, the lower end faces of the first groove and the second groove are flush, the first groove and the second groove are matched with the first boss and the second boss respectively, a forming part is arranged on the lower end face of the first boss, a forming groove is arranged on the bottom face of the first groove, when the upper die and the lower die are closed, the first boss and the second boss enter the first groove and the second groove respectively, so that the first boss, the second boss, the first groove and the second groove form a cavity for forming the electromagnetic valve bonnet.

[0007] With the above structure, the electromagnetic valve cover hot forging die has the following advantages: when the mold is closed, the first boss and the second boss respectively enter the first groove and the second groove, so that the mold cavity is formed between the first boss, the second boss, the first groove and the second groove, and therefore there is no gap in the circumferential direction of the mold cavity, thereby eliminating the flash on the side wall of the formed electromagnetic valve cover and improving the processing efficiency.

[0008] As an improvement, the forming groove bottom surface is provided with an arrow-shaped groove for forming an arrow on the electromagnetic valve cover; with this structure, the arrow-shaped groove is used to form the arrow on the end face of the electromagnetic valve cover.

[0009] As an improvement, the lower end surface of the lower die is provided with a vertical through hole, and the upper end of the through hole is communicated with the first groove; with this structure, the through hole is used for the ejector rod to eject the formed electromagnetic valve cover after the mold is opened.

[0010] As an improvement, the lower end surface of the lower die is provided with four through holes, and the four through holes are respectively distributed at the four corners of the first groove; with this structure, the four through holes are used for four ejector rods to eject the electromagnetic valve cover from the four corners of the electromagnetic valve cover at the same time, so that the electromagnetic valve cover is more evenly stressed and is more stably ejected.

[0011] As an improvement, the depth of the first groove and the second groove is 2-3 times the thickness of the electromagnetic valve cover; with this structure, the first boss and the second boss have sufficient depth when entering the first groove and the second groove, further preventing the generation of flash.

[0012] As an improvement, the thickness of the first boss is greater than the difference between the depth of the first groove and the thickness of the electromagnetic valve cover; with this structure, after the first boss enters the first groove to the maximum depth, there is still a margin between the lower end surface of the upper die and the upper end surface of the lower die, ensuring the normal forming of the electromagnetic valve cover. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a sectional view of the utility model.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper die in the utility model.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the lower die in the utility model.

[0016] Reference signs: 1, upper die; 2, lower die; 3, first boss; 4, second boss; 5, first groove; 6, second groove; 7, forming part; 8, forming groove; 9, arrow-shaped groove; 10, through hole. DETAILED DESCRIPTION

[0017] The electromagnetic valve cover hot forging die of the utility model will be described in detail below with reference to the drawings.

[0018] As Figures 1 to 3 shown, the electromagnetic valve cover hot forging die, comprising an upper die 1 and a lower die 2, the lower end surface of the upper die 1 is provided with a first boss 3, the side wall of the first boss 3 is provided with a second boss 4, the lower end surface of the second boss 4 is flush with the first boss 3, and the upper end surface of the second boss 4 is also provided on the lower end surface of the upper die 1, the lower end surface of the first boss 3 is provided with a forming part 7, the specific structure of the forming part 7 is determined according to the structure of the electromagnetic valve cover to be formed, and the forming part 7 in the embodiment is as Figure 2 shown, the upper die 1, the first boss 3, the second boss 4 and the forming part 7 are integrally formed.

[0019] As Figure 3 shown, the upper end surface of the lower die 2 is provided with a first recess 5 and a second recess 6 which are in communication with each other, the second recess 6 is arranged on the side wall of the first recess 5, and the lower end surfaces of the first recess 5 and the second recess 6 are flush. The bottom surface of the first recess 5 is provided with a forming groove 8, and similarly, the forming groove 8 is also determined according to the structure of the electromagnetic valve cover to be formed, and the forming groove 8 in the embodiment is as Figure 3 shown; in addition, the bottom surface of the forming groove 8 is provided with an arrow-shaped groove 9 for forming the arrow of the electromagnetic valve cover.

[0020] As Figure 1 shown, the first recess 5 and the second recess 6 are matched with the first boss 3 and the second boss 4 respectively, when the upper die 1 and the lower die 2 are closed, the first boss 3 and the second boss 4 enter the first recess 5 and the second recess 6 respectively, so that the first boss 3, the second boss 4 and the first recess 5, the second recess 6 form a cavity for forming the electromagnetic valve cover, specifically, the cavity is actually part of the first recess 5 and the second recess 6, Figure 1 in the closed state, the first boss 3 and the second boss 4 enter the first recess 5 and the second recess 6 respectively Figure 1 , the second boss 4 and the second recess 6 are not shown), the lower end surface of the first boss 3 and the second boss 4, that is, the upper end of the cavity, the forming part 7 is located in the cavity to form the related structure of the electromagnetic valve cover, and as Figure 1 shown, the shaded part between the upper die 1 and the lower die 2 is the formed electromagnetic valve cover, which corresponds to the cavity structure. Under this structure, there is no other space in the circumferential direction of the cavity, so after the electromagnetic valve cover is formed, there will be no flash on the side wall of the electromagnetic valve cover, which improves the processing efficiency.

[0021] In this embodiment, the depth of the first recess 5 and the second recess 6 is 2-3 times the thickness of the electromagnetic valve cover, specifically, the depth of the first recess 5 and the second recess 6 is 18mm, and the thickness of the electromagnetic valve cover is 7.5mm; and the thickness of the first boss 3 is greater than the difference between the depth of the first recess 5 and the thickness of the electromagnetic valve cover, so that after the first boss 3 reaches the maximum depth of the first recess 5, there is still a margin between the lower end surface of the upper die 1 and the upper end surface of the lower die 2, that is,Figure 1 The state is shown.

[0022] As Figure 3 As shown in the lower die 2 lower end face is provided with vertical through hole 10, through hole 10 upper end communicates with the first recess 5, in this embodiment, the lower die 2 lower end face is provided with four through holes 10 and four through holes 10 are respectively distributed in the four corners of the first recess 5.

[0023] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to the above-mentioned one embodiment, all other embodiments obtained by the person skilled in the art without making creative labor are within the scope of the present application.

Claims

1. An electromagnetic valve cover hot forging die characterized by, The application relates to a die set for forming a solenoid valve cover, which comprises an upper die (1) and a lower die (2), wherein the lower end surface of the upper die (1) is provided with a first boss (3), the side wall of the first boss (3) is provided with a second boss (4), the lower end surface of the second boss (4) is flush with the first boss (3), the upper end surface of the lower die (2) is provided with a first recess (5) and a second recess (6) which are in communication with each other, the second recess (6) is arranged on the side wall of the first recess (5), the lower end surfaces of the first recess (5) and the second recess (6) are flush, the first recess (5) and the second recess (6) are matched with the first boss (3) and the second boss (4) respectively, the lower end surface of the first boss (3) is provided with a forming part (7), the bottom surface of the first recess (5) is provided with a forming groove (8), when the upper die (1) and the lower die (2) are closed, the first boss (3) and the second boss (4) are arranged in the first recess (5) and the second recess (6) respectively, so that the first boss (3), the second boss (4), the first recess (5) and the second recess (6) form a die cavity for forming a solenoid valve cover.

2. The electromagnetic valve cover hot forging die according to claim 1, characterized by, The bottom surface of the forming groove (8) is provided with an arrow-shaped groove (9) for forming an arrow of the solenoid valve cover.

3. The electromagnetic valve cover hot forging die according to claim 1, characterized by, The lower end surface of the lower die (2) is provided with vertically arranged through holes (10), and the upper end of the through holes (10) is communicated with the first recess (5).

4. The electromagnetic valve cover hot forging die according to claim 3, characterized by, The lower end surface of the lower die (2) is provided with four through holes (10), and the four through holes (10) are respectively arranged at the four corners of the first recess (5).

5. The electromagnetic valve cover hot forging die of claim 1, wherein, The depths of the first recess (5) and the second recess (6) are 2-3 times the thickness of the solenoid valve cover.

6. The electromagnetic valve cover hot forging die of claim 1, wherein, The thickness of the first boss (3) is greater than the difference between the depth of the first recess (5) and the thickness of the solenoid valve cover.

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