Electric vehicle frame stamping die

Abstract

The utility model belongs to the technical field of stamping dies, and particularly relates to an electric vehicle frame stamping die which comprises a stamping base. Guide columns are arranged at the four corners of the upper portion of the stamping base respectively, a top plate is arranged above the multiple guide columns, sliding sleeves are slidably connected to the guide columns, a push frame is arranged on the multiple sliding sleeves, a first air cylinder is arranged on the top plate, the output end of the first air cylinder penetrates through the top plate to be connected with the push frame, an upper die base is arranged below the push frame, and a lower die base is arranged on the stamping base. A mold core is arranged above the lower mold base, the mold core is matched with the upper mold base, a mold cavity is formed in the lower mold base, a stripping mechanism is arranged on the mold cavity, the mold cavity comprises a middle cavity body, side cavity bodies are arranged on the two sides of the middle cavity body, the stripping mechanism comprises a pushing stripping assembly arranged in the middle cavity body, and pneumatic stripping assemblies are arranged on the side cavity bodies. And after the electric vehicle plate is stamped, the electric vehicle plate can be conveniently demolded from the cavity of the lower mold.

Description

TECHNICAL FIELD

[0001] The utility model belongs to stamping die technical field, specifically speaking, it is a kind of electric vehicle frame stamping die. BACKGROUND

[0002] Electric vehicle, i.e. electric vehicle, electric vehicle is divided into alternating current electric vehicle and direct current electric vehicle.Usually said electric vehicle is with battery as energy source, through controller, motor and other components, electric energy is converted into mechanical energy movement, to control the current size change speed vehicle.

[0003] Electric vehicle frame is the important component of electric vehicle, and electric vehicle frame is welded by many plate structures and steel pipes, wherein, in the production of electric vehicle frame, stamping die is needed to be used to stamp electric vehicle plate.

[0004] Electric vehicle plate is placed on lower die, and electric vehicle plate is forced to be stamped in the cavity of lower die by upper die, but after stamping electric vehicle plate, electric vehicle plate can be stuck in the cavity of lower die, and the stamped workpiece is not convenient to take out, therefore, aiming at the above problems, a kind of electric vehicle frame stamping die is provided. INVENTION CONTENTS

[0005] In order to make up for the deficiencies of the prior art, solve at least one technical problem proposed in the background art, the utility model provides a kind of electric vehicle frame stamping die.

[0006] The utility model solves the technical scheme that the utility model discloses a kind of electric vehicle frame stamping die, including stamping base;The upper four corners of the stamping base are respectively provided with guide column, the upper portion of multiple guide columns is provided with top plate, the guide column is slidably connected with sliding sleeve, multiple sliding sleeves are provided with push rack, the top plate is provided with first air cylinder, the output end of the first air cylinder passes through the top plate and is connected with the push rack, the lower portion of the push rack is provided with upper die holder, the stamping base is provided with lower die holder, the upper portion of the lower die holder is provided with die core, the die core is matched with the upper die holder, the inside of the lower die holder is provided with die cavity, and the die cavity is provided with material removal mechanism.

[0007] Preferably, the die cavity includes a middle cavity, and side cavities are provided on both sides of the middle cavity.

[0008] Preferably, the material removal mechanism includes a push-out demolding assembly arranged in the middle cavity, and a pneumatic demolding assembly is arranged on the side cavities.

[0009] Preferably, the ejecting assembly comprises a second cylinder arranged in the middle cavity, a support plate is arranged on the output end of the second cylinder, a plurality of push rods are arranged on the support plate, a plurality of grooves are uniformly arranged on the die core, the plurality of push rods are in sliding connection with the grooves, and a set of limiting frames are symmetrically arranged on the middle cavity.

[0010] Preferably, the pneumatic demolding assembly comprises branch air pipes arranged on the front side and the rear side of the two side cavities, the branch air pipes are provided with electromagnetic valves, two groups of micro-holes are arranged on the die core, the two groups of micro-holes correspond to the two side cavities respectively, the branch air pipe on the front side is provided with an air pump, and the branch air pipe on the rear side is provided with a negative pressure pump.

[0011] Preferably, the die core is provided with a diamond-like coating.

[0012] The electric vehicle frame stamping die has the following beneficial effects:

[0013] The electric vehicle frame stamping die has the following beneficial effects:

[0014] The electric vehicle frame stamping die has the following beneficial effects:

[0015] The electric vehicle frame stamping die has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings provided in the specification serve to further understand the present application, form a part of the present application, and are used to explain the present application and do not constitute an improper limitation on the present application.

[0017] In the drawings:

[0018] Figure 1 is a perspective view of the present application;

[0019] Figure 2 is Figure 1 is an enlarged view of A in the figure;

[0020] Figure 3 is a partial sectional view of the present application;

[0021] Figure 4 is Figure 3 is an enlarged view of B in the figure;

[0022] Figure 5 is a structural schematic view of the push-out die release assembly.

[0023] Legend:

[0024] 1, punch base; 2, guide post; 3, top plate; 4, sliding sleeve; 5, push frame; 6, first cylinder; 7, upper die holder; 8, lower die holder; 9, die core; 10, middle cavity; 11, side cavity; 12, second cylinder; 13, support plate; 14, push post; 15, slot hole; 16, limiting frame; 17, branch air pipe; 18, micro hole; 19, air pump; 20, negative pressure pump. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] Specific embodiments are given below.

[0027] Please refer to Figures 1-5The utility model provides a kind of electric vehicle frame stamping die, including stamping base 1;Stamping base 1 is provided with control panel, control panel is electrically connected with electrical element in device, the upper four corners of stamping base 1 is provided with guide pillar 2 respectively, the upper of multiple guide pillar 2 is provided with top plate 3, guide pillar 2 is slidably connected with sliding sleeve 4, the inner side of sliding sleeve 4 is polished and smooth, reduce the friction of sliding sleeve 4 on guide pillar 2, multiple sliding sleeve 4 is provided with push rack 5, top plate 3 is provided with first cylinder 6, the output end of first cylinder 6 passes through top plate 3 and is connected with push rack 5, the below of push rack 5 is provided with upper die holder 7, stamping base 1 is provided with lower die holder 8, the upper of lower die holder 8 is provided with die pin 9, die pin 9 is adapted with upper die holder 7, the inside of lower die holder 8 is provided with die cavity, can be placed in die pin 9 with the plate material of electric vehicle frame, push rack 5 is pushed by first cylinder 6, so that upper die holder 7 moves downward, the plate material of electric vehicle frame is stamped and handled, die cavity is provided with material removal mechanism, to facilitate the material removal treatment of the plate material of electric vehicle frame after stamping in die pin 9.

[0028] Further, as shown in Figure 3 and Figure 4 , the die cavity includes a middle cavity 10, and a side cavity 11 is provided on both sides of the middle cavity 10.

[0029] Further, as shown in Figure 3 and Figure 5 , the material removal mechanism includes a push-out demolding assembly arranged in the middle cavity 10, which can push and remove the electric vehicle frame after stamping, and a pneumatic demolding assembly is arranged on the side cavity 11. Through the structural arrangement of the pneumatic demolding assembly, on the one hand, the plate material of the electric vehicle frame placed in the die pin 9 can be adsorbed and positioned, reducing the displacement of the electric vehicle frame plate during stamping, and on the other hand, the electric vehicle frame clamped in the die pin 9 after stamping can be pneumatically demolded.

[0030] Further, as shown in Figure 3 and Figure 5As shown, the push-out demolding assembly comprises a second cylinder 12 arranged in the middle cavity 10, a support plate 13 is arranged on the output end of the second cylinder 12, a plurality of push columns 14 are arranged on the support plate 13, a plurality of slot holes 15 are uniformly arranged on the die core 9, the plurality of push columns 14 are in sliding connection with the slot holes 15, a set of limiting frames 16 are symmetrically arranged on the middle cavity 10, two limiting frames 16 are located on the two sides of the second cylinder 12, the second cylinder 12 is a double-shaft cylinder, in the initial state, the upper part of the push column 14 and the upper part of the slot hole 15 are in the same horizontal plane, and the upper part of the limiting frame 16 is in close contact with the bottom of the support plate 13, after the plate material for the electric vehicle frame is punched, the operation of the second cylinder 12 is controlled to push the support plate 13 upwards, at this time, the plurality of push columns 14 on the support plate 13 slide in the corresponding slot holes 15, thereby performing the stripping treatment on the plate material clamped in the die core 9 after punching.

[0031] Further, as shown in Figure 1 and Figure 3 , the pneumatic demolding assembly comprises branch air pipes 17 arranged on the front and rear sides of the two side cavities 11, electromagnetic valves are arranged on the branch air pipes 17, two groups of micro holes 18 are arranged on the die core 9, the two groups of micro holes 18 correspond to the two side cavities 11 respectively, a gas pump 19 is arranged on the front branch air pipe 17, and a negative pressure pump 20 is arranged on the rear branch air pipe 17, the diameter of a single micro hole 18 is between 0.5-2mm, the plate material for the electric vehicle frame is placed in the die core 9, the electromagnetic valve on the rear branch air pipe 17 is opened, and the negative pressure pump 20 is operated to generate negative pressure in the two side cavities 11 at the same time, the micro holes 18 adsorb and position the plate material for the electric vehicle frame, and the displacement of the plate material for the electric vehicle frame during punching is reduced, when the plate material in the die core 9 after punching is stripped, the operation of the negative pressure pump 20 is stopped, the electromagnetic valve on the front branch air pipe 17 is opened, the operation of the gas pump 19 is controlled, the appropriate air pressure is adjusted, air is simultaneously introduced into the two side cavities 11, the pressure in the side cavities 11 increases, and the gas is released through the two groups of micro holes 18, thereby the plate material for the electric vehicle frame is pneumatically stripped from the die core 9.

[0032] Further, as shown in Figure 1 , a diamond-like carbon coating is arranged on the die core 9, the diamond-like carbon coating has extremely low friction coefficient and good chemical stability, and can effectively improve the demolding effect of the punched part.

[0033] Working principle: the plate material for the electric vehicle frame is placed in the die core 9, the push frame 5 is pushed by the first cylinder 6 to make the upper die holder 7 move downwards, and the plate material for the electric vehicle frame is punched.

[0034] Through the structural arrangement of the stripping mechanism, the punched part in the die core 9 after punching can be conveniently stripped.

[0035] In the initial state, the upper part of the push column 14 is at the same level with the upper part of the slot hole 15, and the upper part of the limiting frame 16 is in close contact with the bottom of the support plate 13. After the plate material for the electric vehicle frame is punched, the push-out die assembly operates, and the support plate 13 is pushed up by controlling the operation of the second cylinder 12. At this time, the plurality of push columns 14 on the support plate 13 slide in the corresponding slot holes 15, and the plurality of push columns 14 gradually push up the punched workpiece, so as to realize the stripping treatment of the plate material punched and clamped in the die core 9.

[0036] In addition, the pneumatic stripping assembly operates, the electromagnetic valve on the front branch air pipe 17 is opened, the operation of the air pump 19 is controlled, the appropriate air pressure is adjusted, the air is simultaneously introduced into the two side cavities 11, the pressure in the side cavities 11 is increased, the gas is released through the two groups of micro-holes 18, and then the plate material punched for the electric vehicle frame is stripped from the die core 9.

[0037] The pneumatic stripping assembly can also adsorb and position the plate material for the electric vehicle frame placed in the die core 9, reduce the displacement of the electric vehicle frame plate material during punching, place the plate material punched for the electric vehicle frame in the die core 9, open the electromagnetic valve on the rear branch air pipe 17, and make the two side cavities 11 simultaneously generate negative pressure by operating the negative pressure pump 20. The micro-holes 18 adsorb and position the plate material punched for the electric vehicle frame, reduce the displacement of the electric vehicle frame plate material during punching, and stop the operation of the negative pressure pump 20 when the plate material punched in the die core 9 is stripped.

[0038] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An electric vehicle frame stamping die comprising a stamping base (1); characterized in that: The punch base (1) is provided with guide columns (2) at the upper four corners, respectively, a top plate (3) is arranged above the guide columns (2), a sliding sleeve (4) is slidably connected to the guide column (2), a push frame (5) is arranged on the sliding sleeve (4), the top plate (3) is provided with a first air cylinder (6), the output end of the first air cylinder (6) penetrates through the top plate (3) and is connected with the push frame (5), an upper die holder (7) is arranged below the push frame (5), a lower die holder (8) is arranged on the punch base (1), a die core (9) is arranged above the lower die holder (8), the die core (9) is matched with the upper die holder (7), a die cavity is arranged in the lower die holder (8), and a material stripping mechanism is arranged on the die cavity.

2. The stamping die for an electric vehicle frame according to claim 1, characterized in that: The die cavity comprises a middle cavity (10), and side cavities (11) are arranged on the two sides of the middle cavity (10).

3. The stamping die for an electric vehicle frame according to claim 2, characterized in that: The material stripping mechanism comprises a push stripping assembly arranged in the middle cavity (10), and a pneumatic stripping assembly is arranged on the side cavity (11).

4. The stamping die for an electric vehicle frame according to claim 3, characterized in that: The push stripping assembly comprises a second air cylinder (12) arranged in the middle cavity (10), a supporting plate (13) is arranged on the output end of the second air cylinder (12), a plurality of push columns (14) are arranged on the supporting plate (13), a plurality of slot holes (15) are uniformly arranged on the die core (9), the plurality of push columns (14) are slidably connected with the slot holes (15), a set of limiting frames (16) are symmetrically arranged on the middle cavity (10), and two limiting frames (16) are located on the two sides of the second air cylinder (12).

5. The stamping die for an electric vehicle frame according to claim 4, wherein: The pneumatic stripping assembly comprises branch air pipes (17) arranged on the front side and the rear side of the two side cavities (11), an electromagnetic valve is arranged on the branch air pipe (17), two groups of micro-holes (18) are arranged on the die core (9), two groups of the micro-holes (18) correspond to the two side cavities (11) respectively, a gas pump (19) is arranged on the branch air pipe (17) on the front side, and a negative pressure pump (20) is arranged on the branch air pipe (17) on the rear side.

6. The stamping die for an electric vehicle frame of claim 1, wherein: The die core (9) is provided with a diamond-like carbon coating.

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