CN212884468U

CN212884468U - A accurate type stamping die for producing built-in U type apron of cell-phone

Info

Publication number: CN212884468U
Application number: CN202020913600.8U
Authority: CN
Inventors: 陈俊奎
Original assignee: Suzhou Lianyongcheng Precision Machinery Co ltd
Current assignee: Suzhou Lianyongcheng Precision Machinery Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-04-06
Anticipated expiration: 2030-05-27

Abstract

The utility model belongs to the technical field of mechanical basis spare and manufacturing, more specifically say, relate to a precision type stamping die for producing built-in U type apron of cell-phone. The bending device comprises a lower die base, an upper die base, a group of guide pillars, a lower bending assembly and an upper bending assembly, wherein the lower bending assembly and the upper bending assembly are matched to complete bending. The lower bending assembly comprises a lower cushion block, a lower supporting seat, a lower sliding block, a pair of bending lugs and a lower return spring; the upper bending component comprises an upper cushion block, an upper supporting seat, an upper sliding block and an upper return spring. The utility model discloses a precision type stamping die for producing built-in U type apron of cell-phone carries out many-sided improvement optimization through carrying out current conventional mould, has advantages such as production high efficiency, simple operation, and the product of its production has characteristics such as one shot forming, stable in quality, precision height, non-cracking, can be applicable to the quick operation of buckling of big batch work piece, has stronger popularization and using value.

Description

A accurate type stamping die for producing built-in U type apron of cell-phone

Technical Field

The utility model belongs to the technical field of mechanical basis spare and manufacturing, more specifically say, relate to a precision type stamping die for producing built-in U type apron of cell-phone.

Background

The mold, known as "industrial parent", is a tool for making shaped articles. The mold realizes the processing of the shape of an article mainly through the change of the physical state of a formed material, and is widely applied to various fields of modern industrial production. The stamping die is a special die device, and when the stamping die works, a die arranged on a press machine is used for applying pressure to a material to enable the material to generate plastic deformation, so that a required part with a specific shape is obtained.

Taking the production of the built-in U-shaped cover plate of the mobile phone as an example, the existing die needs to be punched and formed for many times, and the production efficiency is low. In addition, the built-in U-shaped cover plate of the mobile phone is thin and brittle, and the conventional die is designed specifically, so that the problem of breakage is easily caused during processing, certain defects exist in the aspects of processing precision and stability, and the mobile phone is difficult to adapt to rapid production with high requirements on large batch.

Disclosure of Invention

Not enough to prior art exists, the utility model provides a precision type stamping die for producing built-in U type apron of cell-phone. The precision stamping die for producing the built-in U-shaped cover plate of the mobile phone comprises a lower die holder, an upper die holder, a group of guide pillars, a lower bending assembly and an upper bending assembly; the lower bending component comprises a lower cushion block, a lower supporting seat, a lower sliding block, a pair of bending lugs and a lower return spring; the upper bending component comprises an upper cushion block, an upper supporting seat, an upper sliding block and an upper return spring. The lower die base and the upper die base are both in a square plate shape and are both horizontally arranged, and the upper die base is positioned above the lower die base; four corners of the lower die base are respectively vertically provided with a guide pillar, and the guide pillars penetrate through the upper die base; the upper die holder can slide up and down along the guide post. The lower cushion block is arranged on the lower die base; the lower supporting seat is arranged on the lower cushion block; the lower sliding block is embedded in the lower supporting seat and can slide up and down along the lower supporting seat; the lower reset spring is arranged in the lower supporting seat, the upper end of the lower reset spring is propped against the bottom of the lower sliding block, and the lower end of the lower reset spring is propped against the lower cushion block; the pair of bent lugs are arranged on two sides of the lower sliding block. The upper cushion block is arranged at the lower end of the upper die base; the upper supporting seat is arranged at the lower end of the upper cushion block; the upper sliding block is embedded in the upper supporting seat and can slide up and down along the upper supporting seat; the upper reset spring is arranged in the upper supporting seat, the upper end of the upper reset spring is propped against the lower end of the upper cushion block, and the lower end of the upper reset spring is propped against the upper end of the upper sliding block.

Further, foretell a precision type stamping die for producing built-in U type apron of cell-phone still includes a set of spacing post, and the four corners of die holder is vertically located to spacing post, and the height-adjustable of spacing post.

Further, in the precision stamping die for producing the built-in U-shaped cover plate of the mobile phone, the lower part of the upper sliding block is provided with a boss; the lower end of the upper supporting seat is provided with a dent matched with the boss, and the boss can be embedded into or extend out of the dent.

Furthermore, according to the precision stamping die for producing the built-in U-shaped cover plate of the mobile phone, two sides of the lower end of the upper supporting seat are respectively provided with a bending strip protruding downwards.

Furthermore, in the precision stamping die for producing the built-in U-shaped cover plate of the mobile phone, the upper end of the bent lug is rotatably suspended on the side surface of the lower sliding block through the pin, and the lower end of the bent lug protrudes outwards.

Further, in the precision stamping die for producing the built-in U-shaped cover plate of the mobile phone, the lower end of the bent lug is contacted with the upper surface of the lower supporting seat, and the contact position of the upper surface of the lower supporting seat and the bent lug inclines downwards; when the bent lugs continue to move downwards after contacting the upper surface of the lower supporting seat, the bent lugs slide towards two sides along the upper surface of the lower supporting seat and are turned upwards.

Furthermore, in the precision stamping die for producing the built-in U-shaped cover plate of the mobile phone, the elastic force of the lower return spring is greater than that of the upper return spring.

Furthermore, according to the precision stamping die for producing the built-in U-shaped cover plate of the mobile phone, the top of the lower sliding block is provided with a plurality of workpiece grooves in parallel.

Has the advantages that: the utility model discloses a precision type stamping die for producing built-in U type apron of cell-phone carries out many-sided improvement optimization through carrying out current conventional mould, has advantages such as production high efficiency, simple operation, and the product of its production has characteristics such as one shot forming, stable in quality, precision height, non-cracking, can be applicable to the quick operation of buckling of big batch work piece, has stronger popularization and using value.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view of the lower bending assembly of the present invention;

fig. 3 is a schematic view of the upper bending assembly and the lower bending assembly of the present invention.

In the figure, a lower die holder 1, an upper die holder 2, a guide post 3, a limit post 4, a lower cushion block 51, a lower support block 52, a lower slide block 53, a pair of bent lugs 54, a lower return spring 55, an upper cushion block 61, an upper support block 62, an upper slide block 63, an upper return spring 64, a boss 631, a recess 621, a bending strip 622 and a workpiece groove 531.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

A precision stamping die for producing a built-in U-shaped cover plate of a mobile phone is shown in figures 1 to 3 and comprises a lower die holder 1, an upper die holder 2, a group of guide posts 3, a lower bending assembly and an upper bending assembly; the lower bending component comprises a lower cushion block 51, a lower support seat 52, a lower sliding block 53, a pair of bending lugs 54 and a lower return spring 55; the upper bending component comprises an upper cushion block 61, an upper supporting seat 62, an upper sliding block 63 and an upper return spring 64.

The lower die holder 1 and the upper die holder 2 are both in a square plate shape and are both horizontally arranged, and the upper die holder 2 is positioned above the lower die holder 1; four corners of the lower die holder 1 are respectively vertically provided with a guide pillar 3, and the guide pillars 3 penetrate through the upper die holder 2; the upper die holder 2 can slide up and down along the guide post 3. The lower cushion block 51 is arranged on the lower die holder 1; the lower support seat 52 is arranged on the lower cushion block 51; the lower slider 53 is embedded in the lower support seat 52 and can slide up and down along the lower support seat 52; the lower reset spring 55 is arranged in the lower support seat 52, the upper end of the lower reset spring 55 is propped against the bottom of the lower sliding block 53, and the lower end of the lower reset spring 55 is propped against the lower cushion block 51; a pair of bent lugs 54 are provided on both sides of the lower slider 53.

The upper cushion block 61 is arranged at the lower end of the upper die holder 2; the upper supporting seat 62 is arranged at the lower end of the upper cushion block 61; the upper sliding block 63 is embedded in the upper supporting seat 62 and can slide up and down along the upper supporting seat 62; the upper return spring 64 is arranged in the upper supporting seat 62, the upper end of the upper return spring 64 is pressed against the lower end of the upper cushion block 61, and the lower end of the upper return spring 64 is pressed against the upper end of the upper slide block 63.

The precision stamping die for producing the built-in U-shaped cover plate of the mobile phone can be divided into the following steps during working:

s1: placing a flat workpiece to be bent on the top of the lower slide block 53;

s2: the upper bending component moves downwards along with the upper die holder 2, and the upper sliding block 63 firstly contacts the surface of a workpiece to be bent and presses the workpiece to be bent on the lower sliding block 53;

s3: then the upper supporting seat 62 continues to move downwards, and the two sides of the workpiece to be bent are bent downwards by 90 degrees;

s4: the upper supporting seat 62 continues to move downwards to push the lower sliding block 53 to move downwards, the bending lugs 54 at the two sides are turned up by 90 degrees outwards, and the lower edges at the two sides of the workpiece to be bent are turned up by 90 degrees outwards;

s5: and resetting.

Wherein, the setting of guide pillar 3 can make down the accurate counterpoint of subassembly of buckling with the subassembly of buckling on.

Further, still include a set of spacing post 4, the four corners of die holder 1 is vertically located to spacing post 4, and spacing post 4 height-adjustable, preferably adjust through the screw-thread fit. The limiting column 4 is arranged to limit the descending limit of the upper die base 2, and the die is prevented from being damaged due to excessive descending.

Further, the lower part of the upper slider 63 is provided with a boss 631; the lower end of the upper supporting seat 62 is provided with a recess 621 matched with the boss 631, and the boss 631 can be embedded in or extend out of the recess 621. In step S3, the boss 631 gradually fits into the recess 621.

Further, two sides of the lower end of the upper supporting seat 62 are respectively provided with a bending strip 622 protruding downwards. In step S3, the bending bar 622 bends both sides of the workpiece to be bent downward by 90 degrees.

Further, the upper end of the bent lug 54 is rotatably suspended to the side of the lower slider 53 by a pin, and the lower end of the bent lug 54 is protruded outward. The lower ends of the bent lugs 54 are in contact with the upper surface of the lower support base 52, and the upper surface of the lower support base 52 in contact with the bent lugs 54 is inclined downward. In step S4, when the bent lugs 54 continue to move downward after contacting the upper surface of the lower support 52, the bent lugs 54 can slide along the upper surface of the lower support 52 to both sides and smoothly turn up without being stuck.

Further, the elastic force of the lower return spring 55 is greater than that of the upper return spring 64. According to the size of the pressure required by the workpiece to be bent during bending, the spring with proper elasticity is selected, and the stamping die can be ensured to work according to the sequence of the steps S1 to S5.

Further, a plurality of workpiece grooves 531 are formed in the top of the lower slider 53 side by side. After a plurality of workpiece grooves 531 are arranged, a plurality of workpieces to be bent can be simultaneously machined at one time, and the working efficiency is remarkably improved. The workpiece grooves 531 are preferably three.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a precision type stamping die for producing built-in U type apron of cell-phone which characterized in that: comprises a lower die holder (1), an upper die holder (2), a group of guide posts (3), a lower bending assembly and an upper bending assembly; the lower bending assembly comprises a lower cushion block (51), a lower support seat (52), a lower sliding block (53), a pair of bending lugs (54) and a lower return spring (55); the upper bending component comprises an upper cushion block (61), an upper supporting seat (62), an upper sliding block (63) and an upper return spring (64);

the lower die holder (1) and the upper die holder (2) are both in a square plate shape and are both horizontally arranged, and the upper die holder (2) is positioned above the lower die holder (1); four corners of the lower die holder (1) are respectively and vertically provided with a guide pillar (3), and the guide pillars (3) penetrate through the upper die holder (2); the upper die holder (2) can slide up and down along the guide post (3);

the lower cushion block (51) is arranged on the lower die holder (1); the lower supporting seat (52) is arranged on the lower cushion block (51); the lower sliding block (53) is embedded in the lower supporting seat (52) and can slide up and down along the lower supporting seat (52); the lower reset spring (55) is arranged in the lower support seat (52), the upper end of the lower reset spring (55) is propped against the bottom of the lower sliding block (53), and the lower end of the lower reset spring (55) is propped against the lower cushion block (51); the pair of bent lugs (54) are arranged on two sides of the lower sliding block (53);

the upper cushion block (61) is arranged at the lower end of the upper die holder (2); the upper supporting seat (62) is arranged at the lower end of the upper cushion block (61); the upper sliding block (63) is embedded in the upper supporting seat (62) and can slide up and down along the upper supporting seat (62); the upper return spring (64) is arranged in the upper supporting seat (62), the upper end of the upper return spring (64) is propped against the lower end of the upper cushion block (61), and the lower end of the upper return spring (64) is propped against the upper end of the upper slide block (63).

2. The precision stamping die for producing the U-shaped cover plate arranged in the mobile phone according to claim 1, wherein: the die holder is characterized by further comprising a set of limiting columns (4), wherein the limiting columns (4) are vertically arranged at four corners of the lower die holder (1), and the height of each limiting column (4) is adjustable.

3. The precision stamping die for producing the U-shaped cover plate arranged in the mobile phone according to claim 1, wherein: a boss (631) is arranged at the lower part of the upper sliding block (63); the lower end of the upper supporting seat (62) is provided with a recess (621) matched with the boss (631), and the boss (631) can be embedded into or extend out of the recess (621).

4. The precision stamping die for producing the U-shaped cover plate arranged in the mobile phone as claimed in claim 3, wherein: and two sides of the lower end of the upper supporting seat (62) are respectively provided with a bending strip (622) protruding downwards.

5. The precision stamping die for producing the U-shaped cover plate arranged in the mobile phone as claimed in claim 4, wherein: the upper end of the bent lug (54) is rotatably suspended on the side surface of the lower sliding block (53) through a pin, and the lower end of the bent lug (54) protrudes outwards.

6. The precision stamping die for producing the U-shaped cover plate arranged in the mobile phone as claimed in claim 5, wherein: the lower end of the bent lug (54) is in contact with the upper surface of the lower support seat (52), and the position where the upper surface of the lower support seat (52) is in contact with the bent lug (54) is inclined downwards; when the bent lugs (54) continue to move downwards after contacting the upper surface of the lower support seat (52), the bent lugs (54) slide towards two sides along the upper surface of the lower support seat (52) and are turned upwards.

7. The precision stamping die for producing the U-shaped cover plate arranged in the mobile phone as claimed in claim 6, wherein: the elastic force of the lower return spring (55) is greater than the elastic force of the upper return spring (64).

8. The precision stamping die for producing the U-shaped cover plate arranged in the mobile phone as claimed in claim 7, wherein: the top of the lower sliding block (53) is provided with a plurality of workpiece grooves (531) side by side.