CN210702116U - End cover stretching die - Google Patents

Abstract

The utility model discloses a tensile mould of end cover, including last mould subassembly, lower mould subassembly, direction subassembly and spacing subassembly, it can be at vertical direction displacement for lower mould subassembly under the guide of direction subassembly to go up the mould subassembly, goes up the mould subassembly and includes upper die base, upper padding plate, punch holder, cope match-plate pattern and terrace die, and lower mould subassembly includes lower plate, die holder, lower bolster and die. The utility model discloses set up the outer guide assembly between upper die base and lower plate, set up the interior guide post in the cope match-plate pattern simultaneously, during the compound die, the interior guide post stretches into in the lower bolster, and the guide upper die assembly punches the end cover accurately, makes the end cover size precision degree that punches out high, accords with the design requirement; when the limiting assembly is used for die assembly, the stroke of the upper die assembly can be effectively controlled, and the upper die assembly is prevented from being pressed downwards continuously after being formed by punching.

Description

End cover stretching die

Technical Field

The utility model relates to a mould processing technology field especially relates to a tensile mould of end cover.

Background

The stamping die is a special technological equipment for processing materials into parts or semi-finished products in cold stamping processing, and is called as a cold stamping die and commonly called as a cold stamping die. Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. Stamping dies are widely available in many forms, and can be classified into a blanking die, a bending die, a drawing die, a forming die, a riveting die, and the like according to the process properties. The forming die is a die which directly copies and forms a blank or a semi-finished workpiece according to the shapes of a convex die and a concave die of a figure, and the material per se only generates local plastic deformation; such as an expanding die, a necking die, a flaring die, a relief forming die, a flanging die, a sizing die and the like, which is widely used in stamping dies. But the size deviation of the end cover punched by the existing end cover stretching die is overlarge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tensile mould of end cover through set up interior guide post and outer guide post simultaneously in the mould, has solved the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model adopts the following technical scheme: an end cover stretching die comprises an upper die assembly, a lower die assembly, a guide assembly and a limiting assembly, wherein the upper die assembly can be vertically displaced relative to the lower die assembly under the guidance of the guide assembly;

the upper die assembly comprises an upper die base, an upper base plate is fixedly arranged below the upper die base, an upper clamping plate is fixedly arranged below the upper base plate, a lower die plate and a male die are fixedly arranged below the upper clamping plate, the male die is arranged in the middle of the lower die plate, inner guide posts penetrate through the upper clamping plate and the upper die plate, the upper ends of the inner guide posts prop against the upper base plate, and the lower ends of the inner guide posts protrude out of the lower die plate;

the lower die assembly comprises a lower bottom plate, a lower die base is fixedly arranged above the lower bottom plate, a lower backing plate is fixedly arranged above the lower die base, a lower die plate and a female die are arranged above the lower backing plate, the female die is arranged in the middle of the lower die plate, and an inner guide hole for an inner guide column to penetrate through is formed in the lower die plate;

spacing subassembly includes spacing post and lower spacing post, go up the fixed upper die base bottom surface of locating of spacing post, the fixed lower die base top surface of locating of spacing post down, during with the mould, the bottom surface of going up the spacing post supports with the top surface of spacing post down and leans on spacingly.

Further, the guide assembly comprises an upper guide sleeve, a lower guide sleeve and an outer guide post, the upper guide sleeve is fixed on the bottom surface of the upper die base, the lower guide sleeve is fixed on the lower die base, the upper guide sleeve and the lower guide sleeve are provided with through holes, and the outer guide post is arranged in the through holes.

Furthermore, a material returning spring is arranged in the lower die assembly and penetrates through the lower backing plate, one end of the material returning spring is pressed against the bottom surface of the female die, and the other end of the material returning spring is pressed against the lower die base.

Furthermore, end cover positioning blocks are fixedly arranged on the periphery of the lower template and protrude out of the lower template, and positioning grooves matched with the end cover positioning blocks are formed in the upper template.

Furthermore, U-shaped grooves are formed in the left side and the right side of the upper die base and the lower bottom plate.

The utility model discloses the beneficial effect who has does: compared with the prior art, the utility model has the advantages that the outer guide assembly is arranged between the upper die base and the lower bottom plate, and the inner guide post is arranged in the upper die plate, so that the inner guide post extends into the lower die plate during die assembly to guide the upper die assembly to accurately stamp the end cover, so that the stamped end cover has high dimensional accuracy and meets the design requirement; when the limiting assembly is used for die assembly, the stroke of the upper die assembly can be effectively controlled, and the upper die assembly is prevented from being pressed downwards continuously after being formed by punching.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural view of the upper die assembly of the present invention.

Fig. 4 is a schematic structural view of the lower die assembly of the present invention.

Fig. 5 is a schematic view of the end cap before stretching.

Fig. 6 is a schematic view of the end cap after stretching.

The reference numbers are as follows:

the device comprises an upper die assembly 1, an upper die base 11, an upper cushion plate 12, an upper clamping plate 13, an upper die plate 14, a male die 15, an inner guide column 16 and a positioning groove 17;

the device comprises a lower die component 2, a lower bottom plate 21, a lower die holder 22, a lower backing plate 23, a lower die plate 24, a female die 25, an inner guide hole 26, a material returning spring 27 and an end cover positioning block 28;

the guide component 3, the upper guide sleeve 31, the lower guide sleeve 32 and the outer guide column 33;

a limiting component 4, an upper limiting column 41 and a lower limiting column 42;

a U-shaped groove 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 6, an end cover stretching die comprises an upper die assembly 1, a lower die assembly 2, a guide assembly 3 and a limiting assembly 4, wherein the upper die assembly 1 can be vertically displaced relative to the lower die assembly 2 under the guidance of the guide assembly 3;

the upper die assembly 1 comprises an upper die holder 11, an upper backing plate 12 is fixedly arranged below the upper die holder 11, an upper clamp plate 13 is fixedly arranged below the upper backing plate 12, a lower die plate 24 and a male die 15 are fixedly arranged below the upper clamp plate 13, the male die 15 is arranged in the middle of the lower die plate 24, inner guide posts 16 penetrate through the upper clamp plate 13 and the upper die plate 14, the upper ends of the inner guide posts 16 prop against the upper backing plate 12, and the lower ends of the inner guide posts 16 protrude out of the lower die plate 24;

the lower die assembly 2 comprises a lower bottom plate 21, a lower die base 22 is fixedly arranged above the lower bottom plate 21, a lower backing plate 23 is fixedly arranged above the lower die base 22, a lower die plate 24 and a female die 25 are arranged above the lower backing plate 23, the female die 25 is arranged in the middle of the lower die plate 24, and an inner guide hole 26 for the inner guide column 16 to pass through is formed in the lower die plate 24;

spacing subassembly 4 includes spacing post 41 and lower spacing post 42 on, go up spacing post 41 fixed the locating and go up the die bed bottom surface, spacing post 42 is fixed to be located down the die bed top surface down, and during the mould, the bottom surface of last spacing post 41 and the top surface of spacing post 42 support to lean on spacingly down. When the limiting assembly is used for die assembly, the stroke of the upper die assembly can be effectively controlled, and the upper die assembly is prevented from being pressed downwards continuously after being formed by punching.

The guide assembly 3 comprises an upper guide sleeve 31, a lower guide sleeve 32 and an outer guide column 33, the upper guide sleeve 31 is fixed on the bottom surface of the upper die base 11, the lower guide sleeve 32 is fixed on the lower die base 22, the upper guide sleeve 31 and the lower guide sleeve 32 are provided with through holes, and the outer guide column 33 is arranged in the through holes.

When the die is closed, the upper die assembly accurately punches the lower die assembly under the guidance of the inner guide posts and the outer guide posts, the male die and the female die are matched with each other to punch a required shape, and the punched end cover is high in size precision and meets the design requirement.

A material returning spring 27 is arranged in the lower die assembly 2, the material returning spring 27 penetrates through the lower backing plate 23, one end of the material returning spring 27 is propped against the bottom surface of the female die 25, and the other end of the material returning spring 27 is propped against the lower die seat 22. After the upper die assembly completes the stamping forming of the end cover, the upper die assembly leaves the lower die assembly, the material returning spring can upwards jack the female die, the end cover positioned on the female die is also jacked along with the female die, and the end cover is convenient to withdraw from the female die.

End cover positioning blocks 28 are fixedly arranged on the periphery of the lower template 24, the end cover positioning blocks 28 protrude out of the lower template 24, and positioning grooves 17 matched with the end cover positioning blocks 28 are formed in the upper template 14. The end cover positioning block can accurately position the end cover at the position to be punched, and punching precision is guaranteed.

The left and right sides of the upper die holder 11 and the lower bottom plate 21 are provided with U-shaped grooves 5. The U-shaped groove 5 is convenient for a machine tool to clamp and position the die.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. The end cover stretching die is characterized by comprising an upper die assembly (1), a lower die assembly (2), a guide assembly (3) and a limiting assembly (4), wherein the upper die assembly (1) can be guided by the guide assembly (3) to move in the vertical direction relative to the lower die assembly (2);

the upper die assembly (1) comprises an upper die base (11), an upper base plate (12) is fixedly arranged below the upper die base (11), an upper clamping plate (13) is fixedly arranged below the upper base plate (12), a lower die plate (24) and a male die (15) are fixedly arranged below the upper clamping plate (13), the male die (15) is arranged in the middle of the lower die plate (24), an inner guide column (16) penetrates through the upper clamping plate (13) and the upper die plate (14), the upper end of the inner guide column (16) props against the upper base plate (12), and the lower end of the inner guide column (16) protrudes out of the lower die plate (24);

the lower die assembly (2) comprises a lower base plate (21), a lower die seat (22) is fixedly arranged above the lower base plate (21), a lower backing plate (23) is fixedly arranged above the lower die seat (22), a lower die plate (24) and a female die (25) are arranged above the lower backing plate (23), the female die (25) is arranged in the middle of the lower die plate (24), and an inner guide hole (26) for the inner guide column (16) to pass through is formed in the lower die plate (24);

spacing subassembly (4) are including last spacing post (41) and lower spacing post (42), go up spacing post (41) and fix and locate the die bed bottom surface, lower spacing post (42) are fixed and are located the die bed top surface, and during the mould, the bottom surface of last spacing post (41) and the top surface of lower spacing post (42) support to lean on spacingly.

2. The end cap drawing die of claim 1, wherein: the guide assembly (3) comprises an upper guide sleeve (31), a lower guide sleeve (32) and an outer guide column (33), the upper guide sleeve (31) is fixed on the bottom surface of the upper die base (11), the lower guide sleeve (32) is fixed on the lower die base (22), the upper guide sleeve (31) and the lower guide sleeve (32) are provided with through holes, and the outer guide column (33) is arranged in the through holes.

3. The end cap drawing die of claim 1, wherein: be equipped with material returned spring (27) in lower mould subassembly (2), material returned spring (27) pass lower bolster (23), material returned spring (27) one end top is in die (25) bottom surface, and the other end top is on die holder (22).

4. The end cap drawing die of claim 1, wherein: end cover positioning blocks (28) are fixedly arranged on the periphery of the lower template (24), the end cover positioning blocks (28) protrude out of the lower template (24), and positioning grooves (17) matched with the end cover positioning blocks (28) are formed in the upper template (14).

5. The end cap drawing die of claim 1, wherein: u-shaped grooves (5) are formed in the left side and the right side of the upper die base (11) and the lower bottom plate (21).

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